Gas tight sealing oil sleeve series

The company has advanced oil casing coupling processing technology and new product development capabilities; has senior professional and technical personnel and skilled workforce; has sophisticated production and processing equipment, inspection equipment and instruments, as well as a wealth of oil-specific tubing (OCTG) products Threading experience.

Key words:

L80-13Cr Coupling / N80 CS buckle / PH6 drill collar / short section / Coupling Conversion and Adapter / wear-resistant short section /

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Product Details

The company's full range of product specifications:

Outer diameter: Φ26.67mm~Φ177.8mm

Product Features Description:

During the development of the petroleum industry, with the development of oil well gas drilling and production operations towards greater well depth, higher pressure and temperature, and more severe working conditions, as well as the advancement of oil drilling and production technology itself, oil special pipes are commonly used The existing API STC (short round thread), API LC (long round thread) and API BC (button trapezoidal thread) joints have been difficult to meet the development requirements of the oil field.

Although the API round thread has relatively good sealing performance, the connection strength of the thread part is only equivalent to 60%~80% of the pipe body, and the API partial trapezoidal thread has a higher connection strength, but the sealing The performance is not ideal. Therefore, the major oil pipe manufacturers in the world are devoting themselves to the development of special buckled oil well pipes with better connection strength and sealing performance.

In order to meet the increasing demand for thread connection strength and sealing performance in oil and gas field production, our company has successfully developed CW series special threaded joints, which are suitable for special buckle products in many different environments.

Serial number	Chuangwei special buckle type	Equivalent connection
1	CW-1T	NEW VAM/WSP-3T
2	CW-2T	VAM TOP/WSP-5T
3	CW-3T	VAM FJL
4	CW-6	Hydril PH6
5	CW-8	Hydril CS

The oil casing is mainly used to support the well wall during the drilling process and after the completion of the well, so as to ensure the drilling process and the normal operation of the entire oil well after the completion of the well. The oil pipe mainly transports the oil and gas at the bottom of the oil well to the ground. Several layers of casing are used for each well according to different drilling depths and geological conditions.

Cement cementing should be used after the casing is run down the well. It is different from tubing and drill pipe and cannot be reused. It is a one-time consumable material.

Oil casing is the lifeblood of keeping oil wells running. Due to different geological conditions, the downhole stress state is complex, and the comprehensive action of tension, compression, bending and torsional stress acts on the pipe body, which puts forward higher requirements for the quality of the casing itself. Once the casing itself is damaged for some reason, it may lead to the reduction of production of the whole well, or even to be scrapped.

Casing can be divided into: conduit, surface casing, technical casing and oil casing according to the usage. According to the strength of the steel itself, the casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. The well conditions and well depths are different, and the steel grades used are also different.

Gas tight sealing oil sleeve series