Mining directional drilling trajectory tracking method and system and storable medium

A trajectory tracking and directional drilling technology, applied in the field of geological exploration, can solve problems such as increased cost, complicated model, inconvenient calculation and derivation, and reduced safety, etc., and achieves the effect of reducing cost, simple solution, and convenient calculation.

Active Publication Date: 2021-12-03
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Therefore, it is necessary to install a mine linear rate sensor and a mine pressure sensor, which not only increases the cost but also reduces the safety, and the model is complicated and not convenient for calculation and derivation

Method used

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  • Mining directional drilling trajectory tracking method and system and storable medium
  • Mining directional drilling trajectory tracking method and system and storable medium
  • Mining directional drilling trajectory tracking method and system and storable medium

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Embodiment Construction

[0049]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. 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.

[0050] See attached figure 1 As shown, the embodiment of the present invention discloses a mine directional drilling trajectory tracking method for the drilling method of the existing mine horizontal kilometer directional drilling rig, and the specific implementation steps are as follows:

[0051] Parameter acquisition: obtain the attitude parameters of the current drilling hole and the parameters of the drill pipe and drill bit according to the measurement-whi...

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Abstract

The invention discloses a mining directional drilling trajectory tracking method and system and a storable medium, and belongs to the technical field of geological exploration. The method comprises the following steps: adopting approximate analysis to simplify stress analysis of a hole bottom drilling tool; introducing deflection, and superposing displacement deviation caused by the dead weight of the drilling tool to a prediction track of the drilling hole of the next drilling rod; and constructing a deviation function about a next drill rod tool face angle by adopting a constraint condition that the distance from the prediction track to the design track is shortest. According to the method, the process of deducing the prediction track of the drilling of the next drill rod through stress analysis of the hole bottom drilling tool is simplified, the dependence of the prediction model on stratum parameters and drilling tool parameters is reduced, the influence of the self weight of the drilling tool is considered, the whole prediction model is simple and accurate, meanwhile, the solution of the optimal tool face angle is convenient to calculate, and no any sensor is needed in the whole process of tracking the trajectory, so that the cost is reduced, and the safety performance is enhanced.

Description

technical field [0001] The invention relates to the technical field of geological exploration, and more specifically relates to a mine directional drilling track tracking method, system and storage medium. Background technique [0002] Underground coal mine directional drilling technology is more and more widely used in the fields of coal mine gas control and geological structure exploration because of its advantages of deep drilling, controllable drilling trajectory, and realization of multi-branch holes. A new type of borehole that can be used for multi-branch hole construction. It has the advantages of high drilling efficiency, good gas drainage effect, and large-area centralized drainage. The use of horizontal directional long boreholes for gas drainage has become a popular choice for coalbed methane at home and abroad. Main technical approaches for mining and gas drainage. [0003] At present, the mature drilling and production plan is to use the measurement while dril...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/15G06F17/16E21B7/04
CPCG06F30/20G06F17/15G06F17/16E21B7/04
Inventor 刘宗伟宋建成雷侃田慕琴吕世轩雷志鹏
Owner TAIYUAN UNIV OF TECH
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