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Casing And Tubing Coupling

Product:Casing and Tubing Coupling, Casing Coupling, Tubing Coupling Application:Used for connect 2 joints of tubing or casing Size:Tubing Coupling : 1.9'' - 4-1/2'' Casing Couping : 4-1/2'' - 13-3/8'' Pipe Standard: API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q,API 5CT and 5B L80-1,C90, C95,T95, P110, Q125 Surface:Whole Phosphating or inside phosphating and outside coating Thread:NUE, EUE, STC, LTC, BTC etc

PRODUCT DETAILS


Keyword: Steel Plate

Description

About Tubing coupling

Normally tubing coupling OD maximum is 4 1/2”, as the tubing pipe is applied for the drilling activities (Inside the tubing is the sucker rod to drill/pump the oil), couplings type is more various and rigorous than casing, mostly used is thicken type upset coupling (Internal upset and external upset), for short is EUE coupling, it is the most favorable in tubing connections. Tubing with EU end (EUE) coupling connection also called UPTBG. Because of the end of the tubing is thickened (upset), the connecting stress is better than buttress coupling.

Buttress coupling another type used for tubing connections, it has the same thickness of the pipe body, called NU end (NUE)tubing or TBG.

Features

The oil tubing coupling can solve the problem of fatigue fracture in the existing coupling due to stress concentration. Oil tubing end is connected to the inside wall of the coupling in a tapered thread. The coupling body end and oil tubing are connected with same thread pitch flat thread. The coupling is not easy to produce fatigue fracture, and has good connection effect. It can prevent the accident of oil well pipe string break effectively.

About Casing coupling

Casing coupling is for the dimensions more than 4 1/2 inch. Differently than tubing coupling is, casing coupling normally does not need to be thickened (Non-upset), which means no upset casing coupling, so it has following types:

• BTC: Buttress coupling

• LTC: Long buttress coupling

• STC: Short buttress coupling

All three types has same thickness of the casing pipe body, just have different lengths.

The oil casing coupling is a necessary piece used to connect the two casing. The coupling manufacturing method is the same as seamless pipe. The steel pipe ends with internal thread to connect with the upper and lower casing. In order to ensure the joint tightness, the precision of screw thread is strictly required.

Seamless and ERW Casing

Specification

API 5CT

Grades

K55, N80, L80, C95, P110, Chrome, J55(Modified), J55 (API), PS80

Special Grades

For sour services and for deep well with high collapse properties

Dimensions

OD 4" - 26" WT - 0.2 -0.5"

Length range

1, 2 or 3

Thread connections

API (STC and LTC), BTC, extreme line, etc.

Seamless and ERW Tubing

Specification

API 5CT

Grades

J55 (API) J55(Modified), N80, L80, L80 13Cr, P110, Q125, H40 (API)

Thread connections

API 5B - Last Edition or Premium, EUE, NUE, special seal, metal-to-metal seal and VAGT

Specification

Casing Couplings Short Thread Specifications:

Casing Couplings
Short Thread

Casing Size OD (inches)

Coupling Size OD (inches)

Length (inches)

Weight per Coupling (lbs)

Palletized Carton Quantity

4-1/2

5.000

6.250

8.05

343

 

Company description

Luchi Steel Pipe Manufacturing Co., Limited is located in Liaocheng Development Zone Huitong Logistics Park. Since its establishment, our company has been adhering to the purpose of "quality and progress, honesty and trust", relying on increasingly sophisticated technology and strong production capacity, has developed into a modern steel plate manufacturing and production enterprises. The company has passed ISO9001 quality management system certification and CE certification. Our products include steel plate (stainless steel plate, galvanized plate, carbon plate, etc.), steel strip (stainless steel strip, galvanized steel strip, etc.), steel coil (stainless steel coil, galvanized steel coil, etc.), steel pipe (stainless steel pipe, seamless pipe, oil casing, etc.), color coated coil, corrugated plate and various pipe fittings and profiles. All products are manufactured according to ASTM standard, JIS standard, DIN standard, BS standard and other standards. Applicable to automobile manufacturing, aerospace, chemical energy, construction, electric power and other fields. Over the years, the company spirit of 'quality societe Generale, keep the promise of reputation' business philosophy and service purpose for our customers to provide better products and services, has been the new and old users from all walks of life support and praise. The same product than quality, the same quality than price, the same price than service, the same service than reputation. My company solemnly promise, under the same quality, to ensure a reasonable price, perfect service, lofty reputation to thank friends from all walks of life support and love.

 

 

Factory description

Luchi Steel Pipe Manufacturing Co., Limited is a professional steel pipe production enterprises, our factory has pipeline processing, cold forming, hot extrusion and other production lines. Such as heat treatment chemical analysis, metal halide detection, physical detection, nondestructive testing and other testing equipment and testing technology, imported foreign physical and chemical testing equipment full spectrum direct reading spectrometer, can quickly and accurately carry out chemical analysis of various metal materials. Our production capacity exceeds 30,000 tons of tubing. In addition to independent production, the company has also signed annual sales contracts with major steel mills.
The factory has sufficient inventory and complete varieties and specifications. In line with the sales principle of low price management, let customers buy rest assured, with rest assured! Customer's advice is the driving force of our development, customer satisfaction is the pursuit of our service, integrity and efficiency is our service tenet, we wholeheartedly for new and old customers to provide excellent products and better service, but also sincerely welcome new and old customers to call, letter, visit, negotiate business, guide work!

 

 

Packing and shipping

Products are widely used in precision instruments, aviation, ships, automobiles, household appliances, construction, Bridges, boilers, highway guardrail and other industries. Annual sales of more than 5 million tons. Products are exported to more than 70 countries and regions. We have won the recognition of customers with good reputation and good service.

 

 

Application field

Products are widely used in precision instruments, aviation, ships, automobiles, medical, construction, Bridges, boilers, parts processing and other industries.

 

 

The services provided by the company

Rich product specifications, according to customer requirements to provide processing customized products.

Strict quality inspection, to provide high quality products, satisfactory service.

Provide the most cost-effective product quotation scheme.

Have advanced production equipment, pay attention to the details of the production process, can provide sample service.

Strictly check the source of raw materials and provide a perfect material supply chain.

Provide export standard packaging or packaging according to customer requirements.

 

Company Advantage - Why choose us

PRODUCTS RICH
Product specifications complete material, support personalized customization, export can be customized, special projects can be customized.
HIGH QUALITY
Adopt professional process production process, fully guarantee product quality, strict quality inspection.
SELF-PRODUCED
The product is produced by our own factory, factory directly sold, reducing the links of intermediate trading companies.
PERFECT SERVICE
Perfect pre-sale consultation, after-sales return visit service, tracking after-sales service, let you worry about after-sales.
FAST DELIVERY
Product delivery speed, standard export packaging, 3-15 delivery time.
STRONG COMPANY
Has a number of production bases, annual output of more than 300,000 tons, stock is sufficient.
COST PERFORMANCE
The most cost effective quotation plan, save customer expenses.
We will follow the principle of "quality first, customer first, compliance, innovation". Strive to develop new products, the pursuit of first-class technology. For the majority of users to provide high quality products, satisfactory service. And welcome friends from all walks of life to work with us to create brilliant.

 

COOPERATIVE PARTNER

shrn steel
shiheng speclal steel
ansteel
ansteel
Hangzhou Iron and Steel
Benxi Steel
Tianjin Iron and Steel
Wuhan Iron and Steel
Shagang Group
Panzhihua Steel
Tangshan Iron and Steel
Baotou Steel
Maanshan Iron and Steel Group
Guangzhou Iron and Steel

CERTIFICATE OF HONOR

OUR ADVANTAGES

Quality Assurance:

To provide quality products at the same time to improve after-sales service
One-stop Service:

We have a compatible and experienced R&D team.
Independent factor:

We have our own factory and give the best price.
Professional Team:

Professional team to provide you with efficient service.

FAQ

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