What are the functions of the drilling blowout preventer under the introduction of friction welding drill pipe?

Classification:

Company News

Release time:

2019-08-27

【Summary Description】 What are the functions of the drilling blowout preventer under the introduction of friction welding drill pipe?

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In oil and gas drilling construction, in order to safely drill through high-pressure oil and gas layers and avoid uncontrolled blowout accidents, it is necessary to install a set of equipment on the drilling wellhead.-Drilling well control device. When the pressure in the wellbore is less than the formation pressure, the oil, gas and water in the downhole formation enter the wellbore and form overflow or kick, and in severe cases, drilling blowout and fire accidents may occur.

Friction welding drill pipeInform that the function of the well control device is to close the wellhead quickly and timely when overflow or kick occurs in the well to prevent blowout accidents. Drilling well control devices mainly include: BOP, four-way, remote control console, driller's console, choke and kill blowout manifold, etc.

Drilling BOP can be generally divided into single ram, double ram, universal (annular) and rotary BOP. Depending on the formation being drilled and the requirements of the drilling process, several blowout preventers can also be combined and used simultaneously.

Total size of existing drilling BOPThere are 15 specifications, and the selection of size depends on the casing size in the drilling design, that is, the nominal diameter size of the drilling BOP, which must be slightly larger than the outer diameter of the re-running casing coupling.Friction welding drill pipeTell you that the pressure of the blowout preventer is fromThere are 9 pressure levels from 3.5 MPa to 175 MPa, and the selection principle is determined by the maximum wellhead pressure when the well is shut in.

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Key words:

weilida drill