3M Adam Tech Amphenol ICC (Commercial Products) Amphenol ICC (FCI) Amphenol LTW Amphenol PCD Amphenol SV Microwave API Technologies Corp Assmann WSW Components C&K Cinch Connectivity Solutions Cinch Connectivity. API Connections Casing and tubing of API Specification and JFE-Series are furnished with threads and coupling conforming to API Spec. Select Alt. Stove pipe (Marine Conductor or foundation pile for offshore rigs) Run to prevent wash out of unconsolidated surface formation Run to provide a circulation system for drilling fluids and to ensure the stability of the ground under the rig. Each year VAM ® designs new connections, extends product lines and qualifies new sizes to the most stringent specifications to meet our customer needs. Drift API Drift Special Drift. API Connections We manufacture a complete range of API-certified connections. Pipe joint. Better sealing capabilities. 57,112 Remaining. Other types of casing are assembled with shear wires or with solvent cement. Even casing thread are indirectly related to the casing cost, but everybody in oil industry are fully aware that casing thread connection is inevitable attribute that must be considered to support drilling process and complete the well safely. Premium connections. Providing premium thread connections that hold up in the harshest of environments Whether you have a need for connections destined for difficult applications in deep wells, multi-directional drilling, or for high-torque requirements, B&L Pipeco Services provides a solution. Bridgeport offers set screw, compression, push and raintight connectors and couplings for your EMT conduit installations. Meeting API Specification 5CT 5. The next size in casing. Tubing pipes are used to bring oil and gas from the underground reserves up to the field for further processing. Should your connection type not be listed above. First, the difference between Problems 1 and 4 is simply a matter of aperture size of the casing leak and size of the flow channel behind the casing leak. Types of Trailer Connectors. Electrical. They also provide some redundancy as they are involved as two or three areas not beyond the tool joint. Volute casing. threads per inch and a sharp V profile. The Electric Resistance Welding (ERW) casing and connection presents with one longitudinal weld seam without application of filler steel. Casing is classified in terms of outer diameter or size, weight, grade and the type of the connection. Use as an. XLC-S connectors make up in approximately three turns, the majority of which are low-torque spin-up until the wedge thread surfaces engage. Dynamic loading is common in connection service conditions. The effects of elevated geothermal temperatures on well components include:- • Change in length of unrestrained pipe - for example, 1. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream. Each year VAM ® designs new connections, extends product lines and qualifies new sizes to the most stringent specifications to meet our customer needs. Cameron wellhead systems range from conventional to application-specific systems for geothermal wells, jackup rigs, unconventional plays, and more. Page 2 of 30 Wellhead Complete Manual Section 1. Owing to tougher geological circumstances, complex downhole conditions, and stringent environment safety norms, OEMs are now required to produce high-quality oilfield equipment to reduce the constant stress building on the pipe body; emphasis has been laid on the quality of the. The selection process consists of comparing pipe ratings with design loads and applying minimum acceptable safety standards (i. All casing and tubing threaded connections come with Phosphating finishing and Sharpe offers clients the added advantage of an in-house Bucking unit for coupling and/ or connection make-up and break-out available for joints up to and including 11 ¾” OD. A fuel injectors location on the engine exposes them to intense heat, vibration, and chemical fumes. Casing Connection ltd began its services in 2010 and since then we pride ourselves with the highest quality casings in the industry. The Premium Thread connections describe largely the reliability of casing, drilling and on-site tubing pipes. Here are the various types of trailer connectors: 4 Way Flat Trailer Connectors: allows for basic connection of the main lighting functions for running, turn, and brake lights; 4 Way Round Trailer Connectors: provides a secure connection between the receptacle lid and plug tag; 5 Way Flat Trailer Connectors: allows for basic connection of the main lighting. earthquakes is unnecessary with the technology available to design well casings which will tolerate all known well conditions. ; Selection of tubing connections: The type of tubing connections selected for a completion will depend. In machinery, the buttress thread form is designed to. Casing Head Table of Contents 1. Pipe joint. Cameron wellhead systems range from conventional to application-specific systems for geothermal wells, jackup rigs, unconventional plays, and more. VAM TOP® HT TM (High Torque) is a Threaded and Coupled (T&C) premium connection which has been designed with the main features of the VAM TOP® product line. Introduction. Anything smaller is called tubing, anything larger is casing. USB connectors are used with universal serial bus (USB. 5 Pump casing: Barrel-type boiler feed pump Fig. 5'' to 36''. There are five types of HDMI connector. 52 Electrodes Water Pipe if 10 ft. 6 Production casing. Casing with guide blades. In the inquiry to the oil casing , in addition to determining the material similar to the carbon steel pipe , it is also necessary to pay attention to the buckle type of the oil casing. Designed to reduce installation time and enhance safety, they use trims and proprietary sealing technologies for expected well conditions. type API Casing Couplings Buttress Thread pipe 2. And premium connections also required in large quantity in a oil and gas piping project. 00 MM lbs casing weight capacity at 10,000 psi - and includes true VetcoGray metal-to-metal seals. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. Production. VAM TOP® HT TM is a derivative connection of VAM TOP®. Steel Grade: J55, N80, L80, P110 ect. Additionally, the Sentry C-22 casing head product line has been engineered with the option to integrate full sets of. This connector can support USB 3. A pump casing is often referred to as a volute. Seamless casing and connection is considered the most commonly utilized oil-field casing today. Steel Tubular Products manufactures a complete range of American Petroleum Institute (API) certified casing thread types, including short round thread casing (STC), long round thread casing (LTC) and buttress thread casing (BTC). And premium connections also required in large quantity in a oil and gas piping project. @article{osti_7199725, title = {Makeup torques for API-type round thread casing connections with non-API weights, grades, and coupling diameters}, author = {Hainey, M. RSC's come in two sub-categories: API connections (American Petroleum Institute) Premium connections. Introduction Casing strings for oil and gas exploration and production are generally formed by threads. Other lengths as requested. Select Matched Strength Regular Regular SC73 SC75 SC76 SC77 SC78 SC80 SC90 SC95. The pump casing guides the liquid from the suction connection to the center, or eye, of the impeller. Casing strings There are six basic types of casing strings:. "API" properties of pipe can be generated for any. XLC-S connectors make up in approximately three turns, the majority of which are low-torque spin-up until the wedge thread surfaces engage. x Casing size and weight x Type of connections x Hole size and geometry x Starting, running, and restoring forces x Rotation and reciprocation requirements x Material and design features x Overall operating objectives Weatherford CentraPro Plus® software is a sophisticated, lateral-load simulation. The cost of casing is a major part of the overall well cost, so selection of casing size, grade, connectors, and setting depth is a primary engineering and economic consideration. The design of those threading types you can find them in API 5CT or API 5B. Grounding Electrode System and Grounding Electrode Conductor Part III zNEC 250. 0 low speed data in the same time. • Available in multiple bottom connection configurations including Slip-Lock Sentry C-22 Casing Heads Sentry casing heads incorporate the industry workhorse C-22 geometry that will accept a standard C-21 or C-22 casing hanger. For all casing sizes, the threads are not intended to be leak resistant when made up. The most common type of casing connection in use is the API 8-rd connection, where 8-rd means 8-round or eight threads per inch and a slightly rounded profile. BHGE's conductor and casing connectors are designed and verified by extensive testing and analysis for compatibility with the strength and capacities of the pipe. grade:K55 J55 L80 N80 P110 4. Installation is simple. The Body Ply. earthquakes is unnecessary with the technology available to design well casings which will tolerate all known well conditions. Work tubing: Threaded & Coupled: 1. Connection Description. Problem 1, involving casing leaks without flow restrictions. ERW Casing Grade and Connection Type Chart The Electric Resistance Welding (ERW) casing and connection presents with one longitudinal weld seam without application of filler steel. Types of Relay Based on the principle of operation. Local geology often dictates what type of casing can be used. Research Philosophy The failure of the jump-out of the oil-gas well casing thread is one of the several failure types of casing. com D d t D c Hunting TKC 4040 RTC is spe- cially designed as a low-stress, multi-cycle fracture string. Industry leading commercial software (StressCheck) is used to impart the training covering every element of the casing and tubing design process. Tubing pipes are used to bring oil and gas from the underground reserves up to the field for further processing. These designs minimise stresses on the pump casing despite high internal pressure and are well-suited to manufacturing methods used when producing thick-walled (forged) components. Thermocouple connectors are used to transmit temperature readings from a thermocouple (T/C). SUPERMAX2 : Casing for High Pressure Wells : 5" to 13-3/8" SUPERMAX-TS : Tubing for Low Pressure Gas Well: Threaded. Seamless casing is produced in a pipe mill using a billet, a solid cylindrical piece of steel. By using Standard casing string instead of conventional drill string, the drilling and casing are executed simultaneously, section by section. These innovative coupled connections are suitable for all types of service, including Running (standard static casing applications), Rotating (to aid string advancement), Drilling (Drilling with Casing/Drilling. • each time the well is cased, a smaller diameter casing is used. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). Mandrel (Top & Bottom Thread Style) • Working Pressure Rating A. Our comprehensive inventory of premium and semi-premium thread connections meets ever increasing demands for the most. The recommended torque for any particular tubular is based on the connection type and. Vortex casing. The casing joint consists of a flange (see Flange type) on both casing halves which extends around the entire pump casing including the two stuffing box housings, and which seals the casing in a leak- and pressure-tight manner by means of a number of bolts. And premium connections also required in large quantity in a oil and gas piping project. Designed to reduce installation time and enhance safety, they use trims and proprietary sealing technologies for expected well conditions. Production casing is the final casing run and is hung from a casing hanger on the surface. Type of connections for Casing: BTC (thread coupling buttress), LTC (long round thread coupling), premium connection. Tubing pipes are used to bring oil and gas from the underground reserves up to the field for further processing. CASING HEAD INFORMATION REQUIRED: • Bottom Connection A. Lock screws. Oilfield Pipe Threading Services Downhole Threading Services provides standard casing and tubing connection types including DTS4, DTL, DTS-6, DTS-8 and Drill Pipe. 0 Standard-A type of USB plug is a flattened rectangle which inserts into a "downstream-port" receptacle on the USB host, or a hub, and carries both power and data. As wells become deeper, reliable casing connectors are crucial. Casing Heads manufactured by APT feature a versatile straight bore design that accepts a wide variety of slip and mandrel type casing hangers. Local geology often dictates what type of casing can be used. The detailed design phase includes selection of pipe weights and grades for each casing string. Steel Grade: J55, N80, L80, P110 ect. They also provide some redundancy as they are involved as two or three areas not beyond the tool joint. The Industry Challenge: Premium connections are considered proprietary designs for casing and tubing connections offered by a variety of Vendors that use various connection design approaches to achieve high levels of seal integrity and structural strength. Basically everything except the Tread and Belt System. In this post I will deal with the drill string connections only. Steel Well Casing Pipe Price. We establish strategic partner with many famous mills such as Baosteel, TPCO, valin and so on who through the international certification. Use as an. BK is a third-generation, semi-premium connection, designed for frac strings for oil and gas production. For all casing sizes, the threads are not intended to be leak resistant when made up. Most lectures and publications list the four connections types in the below specific order, which we believe corresponds to the evolution of the API Connections: Short Round Threads and Couplings (API CSG). Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. XL Systems is the sole provider of wedge thread technology for large-bore pipe. The most common type of casing connection in use is the API 8-rd connection, where 8-rd means 8-round or eight threads per inch and a slightly rounded profile. Casing strings There are six basic types of casing strings:. USB connectors are used with universal serial bus (USB. Premium threads have two metal-metal sealing profiles. Flush joint connection for Severe liner applications. Part I -- Casing functions, types, and specs}, author = {Rabia, H. Casing Thread is the thread profile that is found on casing joints and all casing tools. Lettered choices for thermocouple types include B, C, E, J, K, N, R, S, T, and W. China Casing Connector catalog of Bauer Type Casing Connector for Bored Pile, Spare Parts of Rotary Drill Rig Mait Type Casing Connector provided by China manufacturer - Kimdrill Piling (Changsha) Co. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. Should your connection type not be listed above. FASTER & MORE CONSISTENT INSTALLATIONS. "API" properties of pipe can be generated for any. provides casing swage rentals in a variety of sizes and connection types. In the inquiry to the oil casing , in addition to determining the material similar to the carbon steel pipe , it is also necessary to pay attention to the buckle type of the oil casing. Fuel injector connectors are susceptible to deterioration due to aging, and wear and tear. Threaded casing connections can be divided in two groups, namely the integral connections and the threaded and coupled connections. Tie-back liner" Tie-back liner is a section of casing extending upwards from the top of the existing liner to the surface. From the surface to the bottom of the well, the casing telescopes down in size - there are various types of casing depending on their purpose and diameter. This pipe is connected to the top of the liner (Fig. Doing so eliminates the need for a separate water line from the well casing to the house for the Simple Pump. Here are the various types of trailer connectors: 4 Way Flat Trailer Connectors: allows for basic connection of the main lighting functions for running, turn, and brake lights; 4 Way Round Trailer Connectors: provides a secure connection between the receptacle lid and plug tag; 5 Way Flat Trailer Connectors: allows for basic connection of the main lighting. This type of connector is best utilized for drilling, fishing and completion work. Product Index > Connectors, Interconnects > D-Sub Connectors. The pump casing guides the liquid from the suction connection to the center, or eye, of the impeller. It combines the high torque capability of a dimple connector with the high pull strength of a slip type connector. This approach is suitable only in non-freezing climates or where the well head is protected from freezing by its location such as in a well pit or inside of a heated structure. Keywords: Threaded Connections, Thread Parametric Study, API Thread Geometry, API 5CT Steel * e-mail: [email protected] In this post I will deal with the drill string connections only. Applied in Casing from 4-1/2 to 20inch. The lower portion (and sometimes the entirety) is typically held in place with cement. One type, known as a Friction Stop Collar (sometimes called a Bolt-Type Stop Collar), is attached to the casing by tightening a bolt that causes the band of steel to grip the casing. RSC's come in two sub-categories: API connections (American Petroleum Institute) Premium connections. Installation is simple. Electrothermal relay: When two different materials are joined together it forms into a bimetallic strip. Configuration and thread sizes of the ends of the connections are shown in Figure 3, 4 and Table 5. The cost of casing is a major part of the overall well cost, so selection of casing size, grade, connectors, and setting depth is a primary engineering and economic consideration. Introduction Casing strings for oil and gas exploration and production are generally formed by threads. Thermal insulation. Well caps are usually made of aluminum or plastic. The BK is available in traditional API coupling, OD Sizes, and matched strength sizes to give 100% tensile strength for deeper and more demanding wells. Steel Grade: J55, N80, L80, P110 ect. Premium connections that replace the connections VAM TOP, NEW VAM, HYDRIL CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), and etc. x Casing size and weight x Type of connections x Hole size and geometry x Starting, running, and restoring forces x Rotation and reciprocation requirements x Material and design features x Overall operating objectives Weatherford CentraPro Plus® software is a sophisticated, lateral-load simulation. The extremely strong weight-set connection is well suited for connecting large diameter conductor joints, and connecting the casing to the wellhead housing extension. 2 Other Threaded and Coupled Connections 15 1. Threads are used as mechanical means to hold the neighboring joints together during axial tension or compression. The Simple Pump pitless is always tied into the water pipe from the submersible at, or very close to, the well head/casing. This is the casing that provides a conduit from the surface of the well to the petroleum-producing formation. 3 mm (4 1/2 inches) is considered a threshold and can be either casing or tubing. We also provide threading for MetalOne SuperMax and GeoConn threads (read more about the MetalOne threads). The production of ERW casing starts out as skelp, a long and coiled steel ribbon. In the case of offshore drilling, and in the light of new drilling techniques to develop deepwater resources, the use of Premium Connections to drill with casing tubulars offshore Australia has demonstrated the great opportunity this type of connection has for deepwater developments. This type of connector is best utilized for drilling, fishing and completion work. API connections meet or exceed all American Petroleum Institute (API) specifications. CASING STRING DESIGN MODEL -(CASING2} PROJECT TO DEVELOP IMPROVED CASING WEAR TECHNOLOGY, and/or DEA-101. type API Casing Couplings Buttress Thread pipe 2. API buttress connection rating. Makeup torques are comparatively low and range from 30,000 to 60,000 ft-lb depending on size. 1 Combined Loads 161. Specification for Threading, Gauging and Thread Inspection of Casing, Tubing, and Line Pipe Threads Upstream Segment API SPECIFICATION 5B FIFTEENTH EDITION, APRIL 2008. Plastic cap insulators can be used after the connection is made. One is a type of leadscrew and the other is a type of hydraulic sealing thread form. 3 mm (4 1/2 inches) is considered a threshold and can be either casing or tubing. Page 2 of 30 Wellhead Complete Manual Section 1. GSI maintains full traceability documentation and maintenance records for all of our swages. LEFFER Heavy Duty Casings are designed for rotary/oscillator boring of pilings in excess of 100M depth. Pipe performance is discussed as well as material selection. Class D1 according to EN 1886. Our semi-premium and premium products exceed these. Corrosion Resistance. Research Philosophy The failure of the jump-out of the oil-gas well casing thread is one of the several failure types of casing. Our TenarisHydril Wedge and Blue ® connections offer an unmatched range of product solutions to meet the needs of drilling and completion operations across all applications. Special buckled casing pipe buckle characteristics: (1) coupling, variable buckle joint strength - with coupling connection. Slip-type casing connection system. VAM TOP® HT TM product lines benefit from the most reliable performances, demonstrated through a. Threaded casing connections can be divided in two groups, namely the integral connections and the threaded and coupled connections. The conditions to he encountered in each well must be analyzed to determine the types and amount of pipe necessary to. or type of thread connection to the same or another size, weight, or type of thread connection. Thermocouple connectors are used to transmit temperature readings from a thermocouple (T/C). Standard dopefree. Drift API Drift Special Drift. This pipe is connected to the top of the liner (Fig. Running Procedure for Casing with GB Drilling with Casing Connections October 29, 2007 Rev. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). 1500 PSI WP B. CONTACT A SPECIALIST. Connection Type: The connection is the type of thread used to connect the joints of casing. }, abstractNote = {Casing failure can mean the difference between profit and loss in an oil or gas well. The lower portion (and sometimes the entirety) is typically held in place with cement. or more of metal water pipe is in contact with the earth. Tubular items, grades and connection types may be added and may also be specified as being "available" for use or "not available" v. 5 Pump casing: Barrel-type boiler feed pump Fig. Threaded bottom connection Manufacture all kinds of casing thread, connect surface casing through pup joint. connector has passed the requirements set forth by ISO 13679:2011(Draft) CAL I-E. The JV-DD threaded type connectors come in a variety of models and can be configured to meet the specific requirements of our customers. Configuration and thread sizes of the ends of the connections are shown in Figure 3, 4 and Table 5. Thermal insulation. Once the casing hanger is set, the running tool will actuate. provides casing swage rentals in a variety of sizes and connection types. • the next size in casing string is the surface casing, which can run several thousands feet in length. The Ulti-Max™ GT sets an entirely new standard for safety, ease of use, application range, and reliability. com D d t D c Hunting TKC 4040 RTC is spe- cially designed as a low-stress, multi-cycle fracture string. These innovative coupled connections are suitable for all types of service, including Running. Tubing Products: Non upset tubing (NU) 1. The casing is the major stationary component of the pump and mainly provides two functions: Converting velocity head from the impeller into pressure head and guidance of the flow to the discharge connection. The type ALT-2 heavy-duty squnch joint is used for pipe joins generally up to 36" OD, but larger sizes are available. The SlipLock slip-type casing connection system can be used as an alternative to the conventional weld-on or threaded casing connection. It controls the orientation of the probe via internal grooves. We serve virtually every important oil and gas producing region in the United States through our foot print of 20 service locations. Type Tube Material Fin Material Casing Material Casing Type Rows FPI Circuitry Tube Diameter (OD) Connection Type Optional Corrosion Protection Hot Water Coils Copper Aluminum or Copper G90 Galvanized, Aluminum, or 304 Stainless Steel U-Flange, Slip and Drive or None Up to 12 Up to 16 Quarter to Double Serpentine 1/2" or 5/8" Sweat, MPT, or. Types of Electrical Connectors There are many types of individual electrical connectors, which can be categorized by level, function, and type of termination: Connector Level - Each of the connector types can be divided into one or many of these five categories, referred to as connector levels: Wire-to-board or subassembly-to-subassembly. Non-upset ends (NUE) External upset ends (EUE). Loop-in or Looping System. The selection process consists of comparing pipe ratings with design loads and applying minimum acceptable safety standards (i. 3 Integral Connections 15 5. A pump casing is often referred to as a volute. Female Slip Joint (Slip-On Weld) • Inner String A. Casing strings for oil and gas exploration and production are generally formed by threads. In the inquiry to the oil casing , in addition to determining the material similar to the carbon steel pipe , it is also necessary to pay attention to the buckle type of the oil casing. Providing attachment to the surface casing string through the type of bottom connection (Slip-on-weld, threaded, Sliploc), the casing head is typically qualified to withstand up to 10,000 psi working pressure. VAM ® has been the leading brand of premium connections in the oil and gas industry for over 50 years. Electromechanical relay:. Such as EUE, NUE, LTC, BTC, VAM TOP and other terms. 2 Other Threaded and Coupled Connections 15 1. Premium threads have two metal-metal sealing profiles. For all casing sizes, the threads are not intended to be leak resistant when made up. Most passenger tire casings are multi-ply and incorporate polyester, nylon or rayon cords within the casing rubber compound. Solutions to Specific Types of Problems; Casing Leaks; A few comments may be helpful to clarify some of the listings in Table 1. We combine innovative technology, reliable product quality and efficient service. The Simple Pump pitless is always tied into the water pipe from the submersible at, or very close to, the well head/casing. Connectors 4-11 Select Grade 4-11 Connections 4-12 Pipe 4-13 View Grades 4-13 Connectors 4-14 Pipe 4-14 API Properties 4-15 Parameters Basic Conditions 4-16 Drive pipe 4-16 Protection 4-17 Production 4-19 Production - frac 4-19 Burst Primary 4-20 -. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. 6 Pump casing: Circulating pump with a spherically shaped pump casing. It combines the high torque capability of a dimple connector with the high pull strength of a slip type connector. GSI maintains full traceability documentation and maintenance records for all of our swages. Casing Size B. Steel Well Casing Pipe Price. Providing premium thread connections that hold up in the harshest of environments Whether you have a need for connections destined for difficult applications in deep wells, multi-directional drilling, or for high-torque requirements, B&L Pipeco Services provides a solution. Except for extreme-line, the connections all include use of a coupling. One is a type of leadscrew and the other is a type of hydraulic sealing thread form. All casing and tubing threaded connections come with Phosphating finishing and Sharpe offers clients the added advantage of an in-house Bucking unit for coupling and/ or connection make-up and break-out available for joints up to and including 11 ¾” OD. Steel Tubular Products manufactures a complete range of American Petroleum Institute (API) certified casing thread types, including short round thread casing (STC), long round thread casing (LTC) and buttress thread casing (BTC). The type of tubing connections selected for a completion will depend mainly on the well characteristics. The buttress thread form, also known as the breech-lock thread form, refers to two different thread profiles. XLC-S connectors make up in approximately three turns, the majority of which are low-torque spin-up until the wedge thread surfaces engage. Thread (Male or Female) 8rd, 10rd, 8V, 10V, 11-1/2V 2. Steel Well Casing Pipe Price. Tubing pipes are used to bring oil and gas from the underground reserves up to the field for further processing. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. Sometimes more than the first 10 joints will be needed to establish the Running Torque due to erratic results and/or other run-specific conditions. The extremely strong weight-set connection is well suited for connecting large diameter conductor joints, and connecting the casing to the wellhead housing extension. VAM is a brand of "premium threaded connection," and covers many different related thread forms. Superior pressure resistance. Casing with connector does not need coupling because the wall thickness of the connector is commonly thick so the joint efficiency is not reduced. The asymmetric thread form allows the thread to have low friction and withstand greater loads than other. Most passenger tire casings are multi-ply and incorporate polyester, nylon or rayon cords within the casing rubber compound. However, some of these boards use different genders and polarities of the SMA connector. This approach is suitable only in non-freezing climates or where the well head is protected from freezing by its location such as in a well pit or inside of a heated structure. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). Premium connections that replace the connections VAM TOP, NEW VAM, HYDRIL CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), and etc. Types of Electrical Connectors There are many types of individual electrical connectors, which can be categorized by level, function, and type of termination: Connector Level - Each of the connector types can be divided into one or many of these five categories, referred to as connector levels: Wire-to-board or subassembly-to-subassembly. Makeup torques are comparatively low and range from 30,000 to 60,000 ft-lb depending on size. Joint Box or Tee or Jointing System. Schneider, Warren P. The Logan Type A Packer Type Casing Patches will not restrict the bore of the casing and are available in popular casing sizes from 4-1/2 to 13-5/8 inches O. This connector can support USB 3. The leadscrew type is often used in machinery and the sealing type is often used in oil fields. Sometimes more than the first 10 joints will be needed to establish the Running Torque due to erratic results and/or other run-specific conditions. t Taking Connection. Steel Well Casing Pipe Price. Tubing Pup Joint Specifications. connector has passed the requirements set forth by ISO 13679:2011(Draft) CAL I-E. For all casing sizes, the threads are not intended to be leak resistant when made up. Casing Coupling Pipe Grade identification by Paint Color. The extremely strong weight-set connection is well suited for connecting large diameter conductor joints, and connecting the casing to the wellhead housing extension. , in Practical Onshore Gas Field Engineering, 2017. Yaosheng is tubing manufacturer in China. For more information go to www. Acceptance. Corrosion Resistance. From the surface to the bottom of the well, the casing telescopes down in size - there are various types of casing depending on their purpose and diameter. Installation is simple. It features non-rotational makeup with dual metal-to-metal seals and is safely and. A pup joint is a casing or tubing of length shorter than Range 1 with the same connection. Standard dopefree. The pipe may be externally upset, internally upset or both. All working gages are manufactured and certified using a certified API reference master gage as required by the standard. For all casing sizes, the threads are not intended to be leak resistant when made up. Connection Type: The connection is the type of thread used to connect the joints of casing. Such as EUE, NUE, LTC, BTC, VAM TOP and other terms. Casing pipe ends connection types usually in BTC and LTC, STC. • Available in multiple bottom connection configurations including Slip-Lock Sentry C-22 Casing Heads Sentry casing heads incorporate the industry workhorse C-22 geometry that will accept a standard C-21 or C-22 casing hanger. End connectors: flange, union; Outlet connectors: Slip Type Casing Head Housing. 1 Oil-Field Casing1 1. fittings to remove gases trapped in the pump casing or to drain the pump casing for maintenance. We also provide threading for MetalOne SuperMax and GeoConn threads (read more about the MetalOne threads). To narrow it down further we are going to look at Rotary Shouldered Connections (RSC). Problem 1, involving casing leaks without flow restrictions. The design of those threading types you can find them in API 5CT or API 5B. Types of Relay Based on the principle of operation. API thread types are short thread (STC), long thread (LTC), buttress and extreme line. Some literature mention casing (and downhole equipment) contributes up to 15. x Casing size and weight x Type of connections x Hole size and geometry x Starting, running, and restoring forces x Rotation and reciprocation requirements x Material and design features x Overall operating objectives Weatherford CentraPro Plus® software is a sophisticated, lateral-load simulation. The following list of components is applicable to Figures 3-8, inclusive: 1. The profile is a V or wedge-shape but slightly rounded at the crest and valleys of the threads. With sizes from 2 3/8 to 6 5/8, material grades E-75, X-95, G105, S135, threads type in NC26, NC31, NC38, NC40, CN46, NC50. Connection Description. High-strength casing often required for deep wells may have a small inner (drift) diameter that will influence subsequent casing and bit size selection. Specification for Threading, Gauging and Thread Inspection of Casing, Tubing, and Line Pipe Threads Upstream Segment API SPECIFICATION 5B FIFTEENTH EDITION, APRIL 2008. The type ALT-2 (Refer to table 4. Sometimes the threads themselves form a sealing surface with an interference fit -- sometimes t. icon API Connections Standard API connections for oil production and other applications. The casing is the major stationary component of the pump and mainly provides two functions: Converting velocity head from the impeller into pressure head and guidance of the flow to the discharge connection. Connection: Diagram: Application: Type: Size Range: Download: SUPERMAX : Tubing for oil wells and Low Pressure Gas Wells. Tubing pipes are used to bring oil and gas from the underground reserves up to the field for further processing. The connection has been used to drill entire wells, ranging from 2,000 to 8,400 feet of drilling depth in areas such as the Greater Green River Basin in Southern Wyoming and in the Lobo Trend in South Texas. VAM TOP® HT TM product lines benefit from the most reliable performances, demonstrated through a. SUPERMAX2 : Casing for High Pressure Wells : 5" to 13-3/8" SUPERMAX-TS : Tubing for Low Pressure Gas Well: Threaded. Casing with guide blades. API Connections We manufacture a complete range of API-certified connections. At least one end of each tubular is provided with a frustoconical external sealing surface for metal-to-metal sealing engagement with a corresponding surface of an adjoining tubular. • Available in multiple bottom connection configurations including Slip-Lock Sentry C-22 Casing Heads Sentry casing heads incorporate the industry workhorse C-22 geometry that will accept a standard C-21 or C-22 casing hanger. 1 Oil-Field Casing1 1. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). com D d t D c Hunting TKC 4040 RTC is spe- cially designed as a low-stress, multi-cycle fracture string. The rectangular duct construction standards provide the following options for constructing ducts: a) those unreinforced and joined by flat type connections only, b) those joined by flat type joint connectors backed by a qualified reinforcement, c) those joined by an upright connector that meets reinforcement requirements alone or in conjunction. EMT fittings are available in zinc and steel, and with features like captive, deep-slot. Tubing thread types include nonupset (NUE), external-upset (EUE), and integral joint. One is a type of leadscrew and the other is a type of hydraulic sealing thread form. Oilfield Pipe Threading Services Downhole Threading Services provides standard casing and tubing connection types including DTS4, DTL, DTS-6, DTS-8 and Drill Pipe. NUE and EUE connections use a coupling. The casing pipe coupling is a kind of oilfield drilling tool, which is mainly used for the connection of the oil pipe, and mainly solves the problem that the existing coupling easily generates fatigue fracture due to stress concentration. SUPERMAX2 : Casing for High Pressure Wells : 5" to 13-3/8" SUPERMAX-TS : Tubing for Low Pressure Gas Well: Threaded. Type of Connection 1. • Full Scale Tests (FST) -Different Types 1) ISO 13679 / API RP 5C5 2) ExxonMobil Connection Evaluation Program 3) TWCCEP (Thermal Wells Casing Connection Evaluation Protocol) / ISO PAS 12835 3) Customer specifications: Fatigue Extra torque Connection Qualification & Testing. They are different from the conventional threads as the sealing areas in these thread connections are free from the thread profile. Tubing Products: Non upset tubing (NU) 1. For casing running services we use appropriate tongs and handling tools up to 13 3/8″. Casing pipe ends connection types usually in BTC and LTC, STC. fittings to remove gases trapped in the pump casing or to drain the pump casing for maintenance. The design of those threading types you can find them in API 5CT or API 5B. Casing and tubing connections come in two main types: API connections (8 round and buttress) which rely on dope to make a seal, and premium connections from a whole host of casing manufacturers that don't and instead have a metal to metal seal, either via a step in the middle of the thread or at the pin. Results: 57,112. Tejas Tubular Oilfield Services provides tubular make-up services for both tubing and casing. 1 Introduction 1 1. Threads are used as mechanical means to hold the neighboring joints together during axial tension or compression. casing or drilling liner becomes part of the completion string. However, there are exceptions such as when. However, some of these boards use different genders and polarities of the SMA connector. Specification for Threading, Gauging and Thread Inspection of Casing, Tubing, and Line Pipe Threads Upstream Segment API SPECIFICATION 5B FIFTEENTH EDITION, APRIL 2008. Casing is run to protect fresh water formations, isolate a zone of lost returns or isolate formations with significantly different pressure gradients. The SlipLock slip-type casing connection system can be used as an alternative to the conventional weld-on or threaded casing connection. The buttress thread form, also known as the breech-lock thread form, refers to two different thread profiles. 13 (05/16/2018) Page 3 of 8 The Running Torqueis determined while running the first 10 joints after joints assembled with threadlocking compounds are made up. Although various types of pitless adapters are available, the spring-loaded types are most commonly used. Our semi-premium and premium products exceed these. End connectors: flange, union; Outlet connectors: Slip Type Casing Head Housing. , Limited, page1. I won't be talking about connections for casing or tubing. provides casing swage rentals in a variety of sizes and connection types. Bob Moe Oil Technology Services Inc. 0 SuperSpeed application and also carry USB 2. CONTACT A SPECIALIST. size:4 1/2"to 20" product shows: Casing Size OD(/IN) Coupling Size OD(/IN) Length(/IN) Weight per Coupling (/kg) Palletized Carton Quantity(/piece) Palletized Carton Weight(/kg) 4 1/2 5. BK is a third-generation, semi-premium connection, designed for frac strings for oil and gas production. Dynamic loading is common in connection service conditions. • each time the well is cased, a smaller diameter casing is used. A pump casing is often referred to as a volute. Tie-back liner" Tie-back liner is a section of casing extending upwards from the top of the existing liner to the surface. The next size in casing. Premium connection is a higher class connection type for used to connect casing or tubing pipelines. 55 196 892 5 5. Types of casings used in centrifugal pumps Casing is the major stationary component of the pump and mainly provides 2 functions. Most high-capacity water wells are constructed of casing and well screen manufactured from a single type of steel such as low-carbon steel, copper-bearing steel, high-strength low-alloy steel, or stainless steel (Types 304 and 316L). Designed to reduce installation time and enhance safety, they use trims and proprietary sealing technologies for expected well conditions. The conductor pipe is cemented back to the surface. Such as EUE, NUE, LTC, BTC, VAM TOP and other terms. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). To determine the shear force to be applied to the connection model, analysis was performed with a casing string modeled as beam elements subjected to formation shear loading, where casing. 13 (05/16/2018) Page 3 of 8 The Running Torqueis determined while running the first 10 joints after joints assembled with threadlocking compounds are made up. Seamless casing is produced in a pipe mill using a billet, a solid cylindrical piece of steel. Houston Steve Morey Amoco Production Co. A number of proprietary premium casing threads are also available. And premium connections also required in large quantity in a oil and gas piping project. The entire process is faster because you do not have to weld on and then remove tabs. Profile of coupling thread for casing (types OTTG and TBO) Upset pup-joints TBO. It is either used to support subsequent casing and wellhead equipment or the pipe is cut off at the surface after setting the surface casing. and that the various types of casing steel grades and casing connections are manufactured specifically for petroleum service rather than geothermal service. Casing Couplings. Type II and Type II Extended upsets Tubing Ranges 1" to 5-1/2" Grades. Production casing is the final casing run and is hung from a casing hanger on the surface. They are designed for making permanent, pressure-type connections and are therefore not reusable. For casing pipe, most popular threading type is LTC (Long thread coupling), STC (Short thread coupling) and BTC (Buttress thread coupling). Connection Description. 0 low speed data in the same time. Local geology often dictates what type of casing can be used. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. concentration of Buttress casing connection and could be an alternative to the development of new products. Seamless casing is produced in a pipe mill using a billet, a solid cylindrical piece of steel. Steel Grade: J55, N80, L80, P110 ect. In conventional wells the production casing is generally set below the target zone, but it can stop above the target zone if it is desirable to change drilling fluid for penetrating the target zone. The casing joint consists of a flange (see Flange type) on both casing halves which extends around the entire pump casing including the two stuffing box housings, and which seals the casing in a leak- and pressure-tight manner by means of a number of bolts. XLC-S connectors have an external metal-to-metal seawater exclusion seal, which prevents corrosion in the threads. Casing Coupling Pipe Grade identification by Paint Color. • the next size in casing string is the surface casing, which can run several thousands feet in length. Plastic cap insulators can be used after the connection is made. Casing: J55, K55, N80, L80, P110 Drill pipe: E75, X95, XD105, G105, S135 Application: oil well extracting borehole borewell Types: Seamless Casing ERW Casing Connections: P (Plain end) STC (short threads) LTC (long threads) BTC (buttress threads) Premium gas-tight connectors. t Taking Connection. Home; IMPROVED INTEGRAL JOINT CASING CONNECTIONS CAN REDUCE WELL COSTS. XL Systems is the sole provider of wedge thread technology for large-bore pipe. API connections meet or exceed all American Petroleum Institute (API) specifications. Specification for Threading, Gauging and Thread Inspection of Casing, Tubing, and Line Pipe Threads Upstream Segment API SPECIFICATION 5B FIFTEENTH EDITION, APRIL 2008. in diameter. The extremely strong weight-set connection is well suited for connecting large diameter conductor joints, and connecting the casing to the wellhead housing extension. Tie-back liner" Tie-back liner is a section of casing extending upwards from the top of the existing liner to the surface. Semi-premium threaded and coupled connection for drilling with casing and production casing or tubing. Basically everything except the Tread and Belt System. Unfortunately, supply and demand cycles in the pipe industry may control the pipe design rather than engineering considerations. The design of those threading types you can find them in API 5CT or API 5B. Fuel injector connectors are susceptible to deterioration due to aging, and wear and tear. One is a type of leadscrew and the other is a type of hydraulic sealing thread form. Tire Casing. Providing premium thread connections that hold up in the harshest of environments Whether you have a need for connections destined for difficult applications in deep wells, multi-directional drilling, or for high-torque requirements, B&L Pipeco Services provides a solution. VAM ® has been the leading brand of premium connections in the oil and gas industry for over 50 years. API Connections Casing and tubing of API Specification and JFE-Series are furnished with threads and coupling conforming to API Spec. It is either used to support subsequent casing and wellhead equipment or the pipe is cut off at the surface after setting the surface casing. The use of threaded connection instead of welding is justified by the major productivity and the reversibility of the threaded connections 1. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). Tubing and Casing connection. Here are the various types of trailer connectors: 4 Way Flat Trailer Connectors: allows for basic connection of the main lighting functions for running, turn, and brake lights; 4 Way Round Trailer Connectors: provides a secure connection between the receptacle lid and plug tag; 5 Way Flat Trailer Connectors: allows for basic connection of the main lighting. It conforms to movement of the surrounding ground. Premium connection is a higher class connection type for used to connect casing or tubing pipelines. 4 Cesmat Service Company, Inc. Cameron wellhead systems range from conventional to application-specific systems for geothermal wells, jackup rigs, unconventional plays, and more. Type Tube Material Fin Material Casing Material Casing Type Rows FPI Circuitry Tube Diameter (OD) Connection Type Optional Corrosion Protection Hot Water Coils Copper Aluminum or Copper G90 Galvanized, Aluminum, or 304 Stainless Steel U-Flange, Slip and Drive or None Up to 12 Up to 16 Quarter to Double Serpentine 1/2" or 5/8" Sweat, MPT, or. Keywords: Threaded Connections, Thread Parametric Study, API Thread Geometry, API 5CT Steel * e-mail: [email protected] Premium connections that replace the connections VAM TOP, NEW VAM, HYDRIL CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), and etc. The Electric Resistance Welding (ERW) casing and connection presents with one longitudinal weld seam without application of filler steel. The lower portion (and sometimes the entirety) is typically held in place with cement. Applied in Casing from 4-1/2 to 20inch. Casing & Tubing Design (Basic) A comprehensive insight to casing and tubing design with cost optimization tools to converge on best fit pipe size, weight, grade, material and connection type. A lot of casing shall consist of pipe lengths of the same diameter and wall thickness, grade and thread type. All of our Cameron Ram Type "U" BOP 7-1/16" replacement parts are "made in the USA". Casing is the tubular structure that is placed in the drilled well to maintain the well opening. Leak-proof connections that are strong and durable are critical to oil and gas distribution networks. 0% Metric Imperial. QuickCut™ Casing-Exit System RMN- and RHN-Type Anchors Enhances radial anchoring capabilities and improves milling performance in highly compressive formations. They are different from the conventional threads as the sealing areas in these thread connections are free from the thread profile. The reason to use premium connection is due to it's high seal performances, high strength, and longer durability. 2 Other Threaded and Coupled Connections 15 1. This is when API standardized casing connections, and offered specifications for four connections types. Pipe joint. Casing Couplings. concentration of Buttress casing connection and could be an alternative to the development of new products. Ulti-Max GT Offshore Casing Connector. Well caps are usually made of aluminum or plastic. Seamless casing is produced in a pipe mill using a billet, a solid cylindrical piece of steel. A description of the various types of casing connections is given. They also provide some redundancy as they are involved as two or three areas not beyond the tool joint. Standard dopefree. Premium threads have two metal-metal sealing profiles. Volute casing (Spiral casing) It is surrounded by the impeller. Fatigue enhanced VAM TOP ® for drilling, production, workover. API casing thread types include short round thread, long round thread, buttress, and extreme-line. Two types of integral connections are common: ·Upset type connection: this type of connection has pipe ends with an increased wall thickness. 57,112 Remaining. VAM® Connection Selection Guide. By use of a simple theoretical analysis, the transverse stresses in couplings and pipe ends of API eight-round and buttress. Bob Moe Oil Technology Services Inc. BK is a third-generation, semi-premium connection, designed for frac strings for oil and gas production. BHGE's conductor and casing connectors are designed and verified by extensive testing and analysis for compatibility with the strength and capacities of the pipe. Gulfstream Services, Inc. The buttress thread form, also known as the breech-lock thread form, refers to two different thread profiles. Steel Tubular Products OCTG connections fall into three categories: API, semi-premium and premium. Unfortunately, supply and demand cycles in the pipe industry may control the pipe design rather than engineering considerations. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. The entire process is faster because you do not have to weld on and then remove tabs. American Oil Tools sales only the highest quality aftermarket OEM style parts for the Cameron Ram Type "U" BOP 7-1/16". Types of Relay Based on the principle of operation. Tubing is a type of pipe installed in production casing after well completion to let oil or gas flow from the well bore. #N#Outside Diameter. 00 MM lbs casing weight capacity at 10,000 psi - and includes true VetcoGray metal-to-metal seals. The Cameron Ram Type "U" BOP 7-1/16" spares are competitively priced, offer exceptional quality and durability. Casing down to use cement cementing, it and the tubing, drill pipe is different, can not be reused, a one-time consumption of materials. First, the difference between Problems 1 and 4 is simply a matter of aperture size of the casing leak and size of the flow channel behind the casing leak. CASING STRING DESIGN MODEL -(CASING2} PROJECT TO DEVELOP IMPROVED CASING WEAR TECHNOLOGY, and/or DEA-101. Crimp-on connectors afford a very secure connection. Production casing, alternatively called the 'oil string' or 'long string,' is installed last and is the deepest section of casing in a well. From the surface to the bottom of the well, the casing telescopes down in size - there are various types of casing depending on their purpose and diameter. An oil field tubular connection is provided for joining metallic tubulars at a well site. There are many types of premium connection mainly for good sealing performance, resistant to high torque and damage repairing etc. The extremely strong weight-set connection is well suited for connecting large diameter conductor joints, and connecting the casing to the wellhead housing extension. For all casing sizes, the threads are not intended to be leak resistant when made up. Standards for Tubulars: API Bull 5C2, Performance Properties of Casing, Tubing, and Drill Pipe. There are five types of HDMI connector. Figure 3 shows the detailed construction and connection of this type. Steel Grade: J55, N80, L80, P110 ect. VAM TOP® HT TM is a derivative connection of VAM TOP®. Different Types of Electrical Wiring Systems. Pipe performance is discussed as well as material selection. Sometimes the threads themselves form a sealing surface with an interference fit -- sometimes t. Some literature mention casing (and downhole equipment) contributes up to 15. Crimp-on wire connectors are typically made of steel or copper, and they require a crimping tool to attach correctly. Except for extreme-line, the connections all include use of a coupling. Casing while Drilling is also a hazard mitigation solution. For more information go to www. These designs minimise stresses on the pump casing despite high internal pressure and are well-suited to manufacturing methods used when producing thick-walled (forged) components. • the next size in casing string is the surface casing, which can run several thousands feet in length. This pipe is connected to the top of the liner (Fig. t Taking Connection. There is also an API 11. The thread profiles on well casing can be of various types such as Short Round Thread Casing (SRTC), Long Round Thread Casing (LRTC) and Buttress Thread Casing (BTC). 57,112 Remaining. Available for 6" and 8" casing. Our comprehensive inventory of premium and semi-premium thread connections meets ever increasing demands for the most. thread: BTC 3. Providing premium thread connections that hold up in the harshest of environments Whether you have a need for connections destined for difficult applications in deep wells, multi-directional drilling, or for high-torque requirements, B&L Pipeco Services provides a solution. 85 144 843 5 1/2 6. This type offer faster connection type then the threaded one. Tubular items, grades and connection types may be added and may also be specified as being "available" for use or "not available" v. Casing Hanger Compatibility • C-21 and C-22 slip-type casing hangers • Mandrel style casing hangers. API thread types are short thread (STC), long thread (LTC), buttress and extreme line. Work tubing: Threaded & Coupled: 1. XL Systems provides both integral and weld-on connectors in sizes ranging from 16 to 72 in. VAM TOP® HT TM is a derivative connection of VAM TOP®. There are many types of premium connection mainly for good sealing performance, resistant to high torque and damage repairing etc. 1 Oil-Field Casing1 1. It features non-rotational makeup with dual metal-to-metal seals and is safely and. USB connectors are used with universal serial bus (USB. ; Selection of tubing connections: The type of tubing connections selected for a completion will depend. The detailed design phase includes selection of pipe weights and grades for each casing string. Product Index > Connectors, Interconnects > D-Sub Connectors. 3 Manufacture of Oil-Field Casing 2 1. Part I -- Casing functions, types, and specs}, author = {Rabia, H. provides casing swage rentals in a variety of sizes and connection types. Types of connections for Tubing: BTC, NUE, EUE, Premium. Connectors 4-11 Select Grade 4-11 Connections 4-12 Pipe 4-13 View Grades 4-13 Connectors 4-14 Pipe 4-14 API Properties 4-15 Parameters Basic Conditions 4-16 Drive pipe 4-16 Protection 4-17 Production 4-19 Production - frac 4-19 Burst Primary 4-20 -. 1500 PSI WP B. • Full Scale Tests (FST) -Different Types 1) ISO 13679 / API RP 5C5 2) ExxonMobil Connection Evaluation Program 3) TWCCEP (Thermal Wells Casing Connection Evaluation Protocol) / ISO PAS 12835 3) Customer specifications: Fatigue Extra torque Connection Qualification & Testing. 1 Introduction 1 1. Premium connections that replace the connections VAM TOP, NEW VAM, HYDRIL CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), and etc. Where shallow water or gas flow is expected, the conductor pipe is fitted with a diverter system above the flowline outlet. The second type is known as a Set-Screw Stop Collar, which slips on the casing and is attached by tightening set screws that grip the outside diameter. and that the various types of casing steel grades and casing connections are manufactured specifically for petroleum service rather than geothermal service. Each year VAM ® designs new connections, extends product lines and qualifies new sizes to the most stringent specifications to meet our customer needs. VAM TOP® HT TM (High Torque) is a Threaded and Coupled (T&C) premium connection which has been designed with the main features of the VAM TOP® product line. Casing or Tubing Size B. This type of connector is best utilized for drilling, fishing and completion work. These specialized connectors are designed to extend the thermocouple wire and must be rated for a particular T/C.
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