Integral vane hydraulic-magnetic driving borehole cleaning tool

Abstract

The invention relates to an integral vane hydraulic-magnetic driving borehole cleaning tool. The integral vane hydraulic-magnetic driving borehole cleaning tool consists of a flow barrel shell, a rotary magnetic core, an upper gauge protection body and a rotary vane, wherein the outer wall of the flow barrel shell is provided with a lower gauge protection body and a spacing ring; the upper gauge protection body is installed on one side of the spacing ring; the rotary magnetic core is integrally formed by a drum and a spindle; a transition connection section of the drum and the spindle is provided with drilling fluid holes; a hydraulic conversion device is fixedly arranged out of the spindle; the outer wall of the drum is evenly provided with permanent magnets; every two adjacent permanent magnets have opposite magnetic pole directions; the rotary magnetic core is installed in the flow barrel shell; the rotary vane sleeves the flow barrel shell; the outer wall of the flow barrel shell is also provided with a bearing raceway which corresponds to a bearing raceway of the rotary vane; a rolling body is installed in the bearing raceways; the outer wall of the flow barrel shell is also provided with a seal groove; the rotary blade is integrated; the inner wall of a drum body of the rotary blade is evenly provided with the permanent magnets; every two adjacent permanent magnets of the rotary blade have the opposite magnetic pole directions; the outer wall of the rotary vane is also provided with a storage oil sealing and compensating system. The integral vane hydraulic-magnetic driving borehole cleaning tool is free from the limitation whether a drill pipe rotates or not through hydraulic-magnetic coupling driving, and therefore, borehole cleaning efficiency can be drastically improved.

Description

technical field [0001] The invention relates to a wellbore cleaning tool used in order to effectively suppress the formation of cuttings beds and improve the wellbore cleaning efficiency during the drilling process of oil and gas wells, in particular to an integrated blade hydraulic-magnetic transmission wellbore cleaning tool. Background technique [0002] At present, well types such as high-inclination wells, horizontal wells, and extended-reach wells are often used in the exploitation of offshore oil, natural gas, and shale gas to increase the drainage area of ​​the wellbore and maximize the production of a single well. Due to the existence of the build-up section (the curved well section whose inclination angle increases from 0° to 90°) and the horizontal well section in these well types, the cuttings are not easily carried out of the wellbore by the drilling fluid under the action of the gravity component, and cuttings appear. The accumulation phenomenon forms the cutti...

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide an integrated blade hydraulic-magnetic transmission wellbore cleaning tool, which is used to solve the current problems in wells such as highly deviated wells, horizontal wells, and extended-reach wells. The wellbore cuttings cleaning effect is not good during sliding drilling, and the formation of cuttings beds cannot be effectively suppressed

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