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API Casing

Application:Oil well casing serves as well sidewall Pipe Standard:API SPEC 5CT Size:OD: 114.3-508mm,WT: 5.21-16.13mm Process Type: Seamless (SMLS), Electric Resistance Welded (ERW) Grade: J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr,C95, P110. Thread types:STC, LTC, BTC etc

Category:

Oil country tubular goods


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Product Description

Description

Casing is used for lining the complete borehole which has been dug into the ground to procure oil. Similar to the drill pipe, the oil well casing pipe is also subjected to axial tension, therefore they are required to be made from high-quality strong steel material. OCTG casing is large diameter pipe which are held in place in the borehole using cement.

The diameters of OCTG casing pipe range from 4.5″ to 36″. The well-cemented pipe acts as the structural component of the well and offer hole integrity. They prevent the well from collapsing when the drilling process is on. Good quality, well cemented casing can stay in place for the whole life of the well.

The oil well casing pipe are further divided into:

Conductor Casing – Conductor casing is the first boundary between the surface and the subsurface. It helps prevention of well collapse; it keeps away the groundwater and most importantly provides structural support. Conductor casing is installed in the ground by either drilling it or hammering it down. They are available in sizes ranging from 18″ to 36″.

Surface Casing – The purpose of Surface casing is primarily environmental and to ensure safety. It helps in separating the freshwater zones, offering protection from blowout and supporting the wellhead and blow out prevention equipment. Therefore surface casings are required to maintain very high safety standards. They are responsible for supporting the next casing in line.  They may vary in size depending on their purpose, but the most common size of surface casing is 13 3/8”.

Intermediate Casing: Intermediate casing is not always required in all types of oil and gas production. If used, they are placed between the surface and the production casing. They are available in sizes ranging from 13 3/8” to 16”.

Production Casing – Production casing help provide structural integrity and pressure control of the hydrocarbon-bearing sections mainly during the production of oil.

Production Liner – Production liners can be suspended from the production casing or one of the previous casings. They help in reducing the cost significantly as the liner is not required to run through the full depth of the well. Liners can be pre-perforated to help save time and cost.

 

More casing pipes and their colors

Specification

API 5CT Well Casing Length:

 

API 5CT Casing

Range 1

Range 2

Range 3

4.88~7.62 

7.62~10.36

10.36~14.63

Dimension

Labels OD(mm) WT(mm) J55/K55 N80 L80 C90/T95 P110 Q125
4 1/2 9.5 114.3 5.21 PS - - - - -
10.5 114.3 5.69 PSB -        

 

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.

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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".

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Certificate

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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!

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FAQ

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Q1:Can you send samples?


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

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Q2:What product information do I need to provide?


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

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


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

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Q4:What about product prices information?


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

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Q5:What ports of shipment are there?


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

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Q6:What is your terms of payment ?


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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.

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