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A double-rotating jet-flushing device for spud shoe lifting on an offshore drilling platform

An ocean drilling platform, double-rotation technology, applied in the direction of spraying devices, spraying devices with movable outlets, valve devices, etc., can solve the problem of inability to achieve rapid spraying and boosting effects, small spraying area, and inability to quickly remove seabed sediment Adsorption and other problems can be achieved to shorten the transfer period of the work area, improve the effect of spraying, and accelerate the lifting effect

Inactive Publication Date: 2016-02-03
齐宝兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The direction of the water column ejected by the jetting head of the jetting device in the prior art is fixed, so the action range of the jetting sediment is distributed in a point line, and the jetting area is small, and it is impossible to quickly remove the adsorption of the seabed sediment to the outer surface of the spud can. Can not achieve the best rapid spray boost effect

Method used

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  • A double-rotating jet-flushing device for spud shoe lifting on an offshore drilling platform
  • A double-rotating jet-flushing device for spud shoe lifting on an offshore drilling platform
  • A double-rotating jet-flushing device for spud shoe lifting on an offshore drilling platform

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Experimental program
Comparison scheme
Effect test

Embodiment

[0018] The spray flushing device working process of the present invention is as follows:

[0019] High-pressure water enters from the interface pipe, pushes the valve core to move down, and the valve core moves down in conjunction with the annular piston. During the process of the valve core moving down, the valve stem moves down to push the rotary nozzle plate away from the concave hole at the lower end of the end cover, exposing the turbojet hole , high-pressure water enters the water inlet hole of the valve core from the valve cavity and impacts the turbine blade in the water inlet hole to push the valve core to rotate, high-pressure water enters the water outlet channel in the center of the valve stem from the water inlet hole, and then sprays out from the water outlet hole at the lower end into the rotary valve. The annular groove of the spray plate, the annular groove distributes the water to the vortex spray hole on the vortex spray plate, and the vortex spray hole spray...

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Abstract

The present invention provides a double-rotation spraying device for spud shoe lifting of an offshore drilling platform. There is a valve chamber in the middle of the body, an interface pipe is provided at the upper end of the housing, the lumen of the interface pipe communicates with the valve chamber, an end cover is provided at the lower end of the valve chamber, a through hole is vertically opened in the center of the end cover, and a through hole is arranged in the middle of the valve chamber. There is an annular piston, the inner hole of the annular piston is connected with the upper end of the valve stem sleeve, the lower end of the valve stem sleeve is inserted into the central through hole of the end cover and is slidingly connected with it, and the top edge of the valve core is provided with an annular groove. A sealing ring is inlaid, and the sealing ring connects with the valve port at the lower end of the inner cavity of the interface tube to form a valve structure.

Description

technical field [0001] The invention relates to the technical field of offshore oil drilling platforms, in particular to a double-rotating spraying device for spud shoes of the offshore drilling platform. Background technique [0002] The direction of the water column sprayed out by the jetting head of the jetting device in the prior art is fixed, so the action range of the jetting sediment is distributed in a point line, and the jetting area is small, and it is impossible to quickly remove the adsorption of the seabed sediment on the outer surface of the spud can. Can not reach the best rapid spraying and boosting effect. Contents of the invention [0003] The technical task of the present invention is to solve the deficiencies of the prior art, and provide a double-rotating spraying device for spud shoe lifting of an offshore drilling platform. [0004] The technical solution of the present invention is realized in the following manner. The rotary spraying device of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K1/36F16K31/12E02D13/08
CPCB05B3/0409E02B17/0034E02B2017/0078F16K3/262
Inventor 齐宝兰
Owner 齐宝兰
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