API Casing
Classification :
PRODUCT DETAILS
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 | - | |||||
Factory appearance
We are a manufacturer and exporter specializing in metal material research, production, retail, wholesale, packaging, after-sales. We have been engaged in export trade for more than 10 years and have rich experience in this field.
Packing and delivery
Our main products include carbon steel plates, carbon steel coils, carbon steel pipes, carbon steel bars, stainless steel plates, stainless steel coils, stainless steel pipes, color-coated coils, color tiles, galvanized plates, galvanized coils, galvanized roofing, galvanized zinc, etc. With many competitive advantages such as complete varieties, sufficient inventory, excellent quality, low prices, short delivery time, and good after-sales service.
Customer visit
Our products are sold well in China and exported to South Korea, Japan, Russia, Germany, Britain, Austria, Czech Republic, Hungary, Netherlands, Slovenia, Bulgaria, Egypt, Saudi Arabia, Iran, Kuwait, UAE, Turkey, Israel, Syria, Lebanon, Jordan, Yemen, Cyprus, Philippines, Vietnam, Malaysia and many other countries...
Application field
Steel pipe is the most basic and common material in the field of construction. First of all, as a building structural material, steel pipe is often used in the construction of supports, bridges and building frames to ensure their stability and safety. Secondly, steel pipe is also a material widely used in building decoration projects, and can be used to make interior decorations, guardrails, flower stands, etc.
COOPERATIVE PARTNER
FAQ
Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So wecan give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit. 2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.
RELATED PRODUCTS
GET A FREE QUOTE
ENQUIRE NOW
If you are interested in our products and services, please contact us or leave us a message, we will serve you wholeheartedly
CONTACT US
Add : Building 8, Shangang New World, Jinan City, Shandong Province
Copyright 2025 : Baofa (Xiong'an) Metal Materials Sales Co., Ltd. Powered by：CEglobal SEO BUSINESS LICENSE
