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Complex roof rock stratum high-position directional long drill hole construction device

A construction device and long drilling technology, which is applied in the field of high-position directional long drilling construction devices in complex roof strata, can solve the problems of complex stratum structure of underground mines, complex underground strata conditions, poor trial effect, etc. The effect of increasing the risk of gas leakage and increasing the cost of layout

Pending Publication Date: 2021-06-04
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The high-level directional long drilling essentially utilizes the measurement-while-drilling directional drilling technology in coal mines. This technology originated from oil drilling. The environment has a great influence on directional drilling technology, and the geological conditions of coal seams in my country are relatively complicated, so it is difficult to form holes and the overall trial effect is not good. After a lot of experience in downhole drilling and drilling, it is known that high-level directional drilling The main difficulties encountered during the drilling process are: the underground stratum is complex, and the primary problem faced during the drilling process of directional drilling is the complex stratum structure of the underground mine

Method used

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  • Complex roof rock stratum high-position directional long drill hole construction device
  • Complex roof rock stratum high-position directional long drill hole construction device
  • Complex roof rock stratum high-position directional long drill hole construction device

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Embodiment Construction

[0028] The present invention provides a high-position directional long drilling construction device for complex roof strata. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] The construction device for high-position directional long drilling in complex roof strata is characterized in that it includes a water feeder 1, a drill pipe 2, a steering nipple 3, a measuring probe 4, an upper non-magnetic drill pipe 5, a measuring probe 2 6, Lower non-magnetic drill pipe 7, steering nipple 2 8...

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Abstract

The invention discloses a complex roof rock stratum high-position directional long drill hole construction device. The complex roof rock stratum high-position directional long drill hole construction device is characterized by comprising a water feeder, a drill rod, a first steering stub, a first measuring exploring tube, an upper non-magnetic drill rod, a second measuring exploring tube, a lower non-magnetic drill rod, a second steering stub and a drill bit, wherein one end of the water feeder is connected to the drill rod; the drill rod is connected to the first measuring exploring tube through the first steering stub; the first measuring exploring tube is connected to the upper non-magnetic drill rod; the upper non-magnetic drill rod is connected to the lower non-magnetic drill rod through the second measuring exploring tube; the lower non-magnetic drill rod is connected to the second steering stub; and the drill bit is arranged at one end of the second steering stub; and the other end of the water feeder is provided with a communication cable.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a construction device for high-position directional long drilling in complex roof strata. Background technique [0002] The high-level directional long drilling essentially utilizes the measurement-while-drilling directional drilling technology in coal mines. This technology originated from oil drilling. The environment has a great influence on directional drilling technology, and the geological conditions of coal seams in my country are relatively complicated, so it is difficult to form holes and the overall trial effect is not good. After a lot of experience in downhole drilling and drilling, it is known that high-level directional drilling The main difficulties encountered in the drilling process are: the underground stratum is complex, and the first problem faced in the directional drilling process is the complex stratum structure of the underground mine. [0...

Claims

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Application Information

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IPC IPC(8): E21B7/04E21B7/10E21B47/022
CPCE21B7/04E21B7/10E21B47/022
Inventor 何俊白卫星冯雨
Owner HENAN POLYTECHNIC UNIV
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