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Screw motor deflecting drilling method

A screw motor and motor technology, which are used in drilling equipment and methods, earth-moving drilling, drilling equipment, etc.

Inactive Publication Date: 2020-11-17
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of the prior art that the drilling hole collapses during drainage and plugs the drainage gas gushing channel, and proposes a screw motor deflection drilling method, which avoids gas plugging and drainage. The problem of the gushing channel of mining, the effective gas drainage efficiency

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0025] refer to Figure 1-4 , a screw motor deflection drilling method, comprising a drill bit 1, one end of the drill bit 1 is fixedly connected with a screw motor 2, the end of the screw motor 2 away from the drill bit 1 is fixedly connected with a motor tool surface 3, and the motor tool surface 3 is far away from the screw motor 2 One end of one end is fixedly connected with the lower non-magnetic drill rod 4 and the upper non-magnetic drill rod 6, the outer side walls of the lower non-magnetic drill rod 4 and the upper non-magnetic drill rod 6 are fixedly sleeved with the measuring probe 5, and the upper non-magnetic drill rod 6 One end away from the lower non-m...

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Abstract

The invention discloses a screw motor deflecting drilling device. The screw motor deflecting drilling device comprises a drill bit, wherein one end of the drill bit is fixedly connected with a screw motor, and the end, far away from the drill bit, of the screw motor is fixedly connected with a motor tool face; the end, far away from the screw motor, of the motor tool face is fixedly connected witha lower non-magnetic drill rod and an upper non-magnetic drill rod, the outer side wall of the lower non-magnetic drill rod and the outer side wall of the upper non-magnetic drill rod are fixedly sleeved with a measuring exploring pipe, and the end, far away from the lower non-magnetic drill rod, of the upper non-magnetic drill rod is fixedly connected with a drill rod; and the end, far away fromthe upper non-magnetic drill rod, of the drill rod is fixedly connected with a water feeder, and the side face of the water feeder is provided with a high-pressure water feeding rubber pipe in a communicating mode. According to the screw motor deflecting drilling device, high-pressure water flow is provided by a slurry pump to drive the screw motor to rotate and drill, a drilling machine appliesbit pressure to an in-hole drilling tool, and the drill hole construction orientation adjustment or branch opening is achieved by adjusting the motor tool face, so that the traditional problem of extraction drill hole collapse caused by the change of the drill hole surrounding rock stress is solved.

Description

technical field [0001] The invention relates to the technical field of screw motors, in particular to a screw motor deflection drilling method. Background technique [0002] Gas drainage is a measure that uses special equipment to pump out or discharge gas in coal seams, rock formations and goafs. Gas drainage means drilling, using boreholes (or roadways), pipelines and vacuum pumps to remove gas from coal seams or mining areas. Technical measures for pumping gas to the ground. The screw drilling tool is a volumetric downhole power drilling tool that uses drilling fluid as power and converts liquid pressure energy into mechanical energy. [0003] At present, the underground directional drilling technology of coal mines uses the hydraulic screw motor as the driving force at the bottom of the hole to drive the drill bit to rotate and break the rock. With the increase of coal mining depth and the expansion of mining range, drilling drainage is the main technology Coal seam gas...

Claims

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Application Information

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IPC IPC(8): E21B7/06E21B4/02E21B47/022E21B47/024E21F7/00E21F17/00E21F17/12
CPCE21B4/02E21B7/061E21B7/068E21B47/022E21B47/024E21F7/00E21F17/00E21F17/12
Inventor 陈立伟裴蓓高保彬许彦鹏刘军王林袁军伟杨宏民赵明振
Owner HENAN POLYTECHNIC UNIV
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