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Address:2503 building 15,greenland guojihuadu 4,dangyang road 3166,Jinan ,China

Phone:+8615254113671
Email:jncreate@foxmail.com
WhatsApp:+8615254113671
Wechat:15254113671

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

Category：

Oil country tubular goods

WhatsApp:+8615254113671

Email:jncreate@foxmail.com

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Product Description

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

Warehouse Storage

Our company is committed to providing a series of high-quality, innovative and cost-effective steel products, which are widely used in various industries. With more than 3,000 independent patents, the annual output of steel products exceeds 5 million tons, and the inventory exceeds 200,000 tons.

Packing and shipping

Due to our continuous and widespread success in overseas market and outstanding social contributions, our company was awarded by the local government for many times. Our products have been exported to Southeast Asia, Middle east, South America, Europe, Oceania and other countries and regions, which enjoys good reputation.

Customer conversation

We adhere to the management principle of "quality first, service first, continuous improvement and innovation to meet customer needs", and strive to build a leading world-class manufacturer in China.

Application field

Construction and decoration field, cooking equipment, kitchenwares, household appliances, food processing equipment, hospital surgical equipment, shipbuilding, oil industry, refrigeration equipment, papermaking industry, pressure vessel, chemical equipment, bridge construction, textile printing and dyeing equipment.

Factory

Our company have two advanced GI / GL production lines and 3 PPGI/PPGL production lines ,mainly produce galvanized and prepainted galvanized steel coils between [0.135-2.0]mm*[600-1250]mm Zinc coating:40-275gsm, Alu-Zinc coating:40-275gsm,and we can also produce all kinds of crc,gi,gl,ppgi,ppgl ,corrugated steel sheet ,roofing tiles.

Customer Visit

The company will continue to adhere to the concept of "integrity, innovation, dedication, win-win" and the core values of "sincerity and perfection, truly accumulate wealth, survive by excellence, and develop by innovation".

Certificate

Application

By improving technology, management, service and brand, we will work together and move forward to create more value for society, develop together with our customers, and contribute to society!

FAQ

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q3:It's my first time to import steel products, can you help me with it?

A:Sure,we have agent to arrange the shipment, we will do it together with you.

Q4:What about product prices information?

A:Prices various according to periodic price changes of raw materials.

Q5:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.

Q6:What is your terms of payment ?

A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.

Oil country tubular goods