Blowout-preventing sand washing device mounted on elevator

Abstract

The invention discloses a blowout-preventing sand washing device mounted on an elevator. The blowout-preventing sand washing device comprises an elevator device, a spindle box assembly, a lifting assembly, a horizontal moving assembly, an oil tube clamping mechanism, a plug valve clamping mechanism and a hydraulic control system, wherein the elevator device comprises an elevator shell and an elevator; the horizontal moving assembly is arranged on the top surface of the elevator shell; the spindle box assembly comprises a spindle, an angular contact bearing machine, a hydraulic motor, a drivingpinion, a driven gear and a spindle box body, and the hydraulic motor is arranged on the outer side of the spindle box body; the lifting assembly comprises vertical moving oil cylinders arranged on two sides of the spindle box body, and the spindle box assembly is fixed on a slide plate; the oil tube clamping mechanism clamps an oil tube and keeps the oil tube not rotating during blowout pluggingor sand washing; the plug valve clamping mechanism clamps a plug valve; the hydraulic control system controls start and stop of the oil cylinders. The blowout-preventing sand washing device is reasonable in structure, convenient to operate and high in automation degree, rapid plugging of a blowout oil tube is realized, the operation difficulty is reduced effectively, and the operation security coefficient is increased.

Description

technical field [0001] The invention relates to a blowout prevention and sand washing device, in particular to a blowout prevention and sand washing device mounted on an elevator, and belongs to the technical field of petroleum workover. Background technique [0002] Workover operation is an important part of oilfield production and a key process to ensure stable oilfield production. Offshore workover operations have the characteristics of small site, complex and changeable weather, and high efficiency requirements. At present, most offshore workover operations are manual-based operations, including: moving slips, feeding and returning power tongs, lifting oil pipes to the drilling floor, opening and closing elevators, and piping on the second floor platform Wait. People stand on the second-floor platform, and the sea is very windy and rough, so there is great danger and low efficiency. In addition, when the elevator is performing oil workover operations, due to the press...

AI Technical Summary

Problems solved by technology

Standing on the second-floor platform, the sea is very windy and rough, there is great danger and low efficiency

In addition, when the elevator is performing oil workover operations, due to the pressure generated by the oil well, it is prone to blowout

The plug valve is the necessary supporting equipment for the minor workover operation of the workover rig in the oil field. At present, the installation method of the plug valve is mostly manual. Workers cannot send the plug valve to the high altitude to close the blowout oil pipe mouth. They can only lower the oil pipe to the wellhead and install the plug valve manually. The blowout liquid will be sprayed out in large quantities because it cannot be blocked in time, which is extremely harmful to the workplace and equipment. It is also very difficult to install the plug valve manually

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