The couplings produced by our company are good at stable quality which the technical parameters are completely complied with the requirements of API5CT and API5B latest standards. Meanwhile, the company has equipped with more than 30 sets CNC threading machines, is able to produce variety of steel grade couplings include STC, LTC, BTC and NU, EU threading couplings.
The size for Tubing couplings are ranged from 2-3/8'' to 4-1/2'', as well as 4-1/2'' to 20'' for Casing Couplings. The company can produce all kinds of couplings over 1 million pieces annually.
API 5CT BTC STC LTC Casing Coupling
Product Description
Tubing & Casing Coupling
Coupling is the joining of two short length pipes by the means of male and female threads.
All types of couplings have internal threads which are known as female thread forms. These thread forms are usually machined so that they can be coupled with the external threads on pipes known as male thread forms. Couplings are strictly designed as per API specifications.
There are two types of tubing couplings widely used in the pipeline coupling manufacturing industries namely:
Non-upset Thread Tubing Coupling
External-upset Thread Tubing Coupling
There are three types of casing couplings widely used in the pipeline coupling manufacturing industries namely:
The couplings produced by our company are good at stable quality which the technical parameters are completely complied with the requirements of API5CT and API5B latest standards. Meanwhile, the company has equipped with more than 30 sets CNC threading machines, is able to produce variety of steel grade couplings include STC, LTC, BTC and NU, EU threading couplings. Please visite our website: www.richsen.cn
The size for Tubing couplings are ranged from 2-3/8'' to 4-1/2'', as well as 4-1/2'' to 20'' for Casing Couplings. The company can produce all kinds of couplings over 1 million pieces annually.
If you have any questions, please contact Laura@richsen.cn in any time.
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Casing and Tubing Coupling API 5CT
1.Size:1.9"~20"
2.Material:J55,K55,N80-1,N80-Q,P110 etc.
3.Thread:NU,EU,STC,LTC,BTC,VAM TOP and other special thread type.
4.Standard:API 5L,API 5CT ,ISO 9001:2008
5. Surface treatment: Whole phosphating, or inside phosphating and outside coating
5.Casing Coupling:
Hebei Borun Steel Trade Co.,Ltd is a manufacturer and exporter with 15 years' experiences.We mainly exports Carbon Steel(Seamless steel pipe,OCTG and so on).If you're interested,pls contact me.
Technical standard API SPEC 5CTã??API SPEC 5B
Product grade H40ã??J55ã??K55ã??N80-1ã??N80Qã??L80ã??C95ã??T95ã??P110
Specification range OD127~365.12mmï¼?4 1/2"~13 3/8"ï¼?
Thread types Short round thread(STC)ã??Long round thread(LC)ã??Buttress thread(BC)
Application of product Internally threaded cylinder for joining two lengths of threaded casing pipe
Contact Info Email:octgpipes@126.com Whatsapp/Skype:+86 18233500310
Linkedin:Tina Lee
Product Name:
API 5CT Casing Pipe
Product Keyword:
Steel Pipe, Oil & Gas Pipe, Petroleum Pipe, API Pipe, Casing Pipe, Steel Tube
Brief Description:
Outside Diameter: 5-1/2¡± to 20¡±; Steel Grade: J55, K55, N80, L80, P110; End-Finish: PE, STC, LTC, BTC; Length Range: R1/R2/R3; Manufacture Process: Seamless or Electric-Welded (Electric-Resistance or Electric-Induction Welded);
Product Details:
Standard: API Specification 5CT, Ninth Edition, July 2011
Outside Diameter: 5-1/2¡±-20¡± (114.30-508.00mm)
Steel Grade: J55, K55, N80, L80, P110
Range Length: R1 (4.88-7.62metres), R2 (7.72-10.36metres), R3 (10.36-14.63metres);
Manufacture Process: Seamless or Electric-Welded (Electric-Resistance or Electric-Induction Welded);
Type of Threading: STC (Short Round Thread), LTC (Long Round Thread), BTC (Buttress Thread), or PE (Plain End, unthreaded).
Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or wellbore. It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow drilling fluid to circulate and extraction to take place. The following different types of casing are used in the extraction process:
Surface casing
- Protects the well from contamination in shallow water and gas layers.
- Supports the wellhead equipment and sustains the weight of the other layers of casing.
Intermediate casing
- Isolates different layers of pressure to facilitate normal circulation of drilling fluid and protect the production casing.
- Intermediate casing facilitates the installation of blow-out preventers, anti-leakage devices and tailpipes in the well.
Production casing (oil string)
- It is the conduit through which oil and gas pass from a below surface reservoir.
- It protects the well and separates fluids into various layers.
For the manufacture of casing, green pipes are threaded on each end at first. The threading is then inspected and, if necessary, rethreaded to ensure that the thread accurately connects to the coupling. The casing are strengthened by surface treatment and are subject to various inspections, including drifting and hydrostatic tests before they are coated and packaged into casing.
Standard: API Standard: API 5CT Grade: API J55-API P110 Grade: API P110 Thickness: 5.21 - 16.13 mm Section Shape: Round Outer Diameter: 114.3 - 508 mm Place of Origin: China (Mainland) Application: Oil Pipe Technique: Hot Rolled Certification: API Surface Treatment: Painted Special Pipe: API Pipe Alloy Or Not: Is Alloy .Packaging & Delivery
Packaging Details: Capped & in bundles
Delivery Detail: 15-60 days
Specifications
1. Provide API 5CT OCTG casing pipe
2. Hydrostatic/UT tested; heat treatment applied
Casing is the major structural component of a well. Casing is needed to:
Maintain borehole stability
Prevent contamination of water sands
Isolate water from producing formations
Control well pressures during drilling, production, and workover operations
Casing provides locations for the installation of: Blowout preventers
Wellhead equipment
Production packers
Production tubing
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.
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