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Mobile phone: 13952542378

E-mail:JSGYxmz@163.com

Address: Middle Section of Xing District Road, South Economic New District, Gaoyou
Postcode: 225600

Phone: 086-514-84612756
Fax: 086-514-84612756

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What are the components of the drill string? What role do they play in the drilling process?

The drill string is composed of square drill pipe, drill pipe, weighted drill pipe, drill collar, matching joint, stabilizer and so on.

Drill string is an important tool for drilling. Its functions include:

Provides a channel for circulating drilling fluid to flow from the wellhead to the bottom of the well, delivering fluid energy to the drill bit.

Appropriate pressure is applied to the drill bit, so that the working edge of the drill bit continuously eats into the rock.

Transmit the ground power to the drill bit, so that the drill bit continuously rotates to break the rock.

Lift the drill.

Transport liquid energy for downhole power drilling tools, and withstand reverse torque.

Calculate the depth of the well based on the length of the drill string.

Through the drill string, you can observe and understand the working conditions of the drill bit, the wellbore conditions and the formation conditions.

Assist various downhole operation tools to carry out special operations such as coring, orientation, midway testing, cement squeezing, salvage of well falling objects, and handling downhole accidents.

Oil rig system composition