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Three-dimensional barrier-bypassing well drilling design method and device, and computer storage medium

A design method and a technology for bypassing obstacles, which are applied in the field of coalbed methane drilling and can solve problems such as incompatibility and long well sections around obstacles.

Inactive Publication Date: 2019-01-04
李鹏飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current 3D obstacle drilling method mainly adopts the cylindrical method, which has obvious problems for the 3D obstacle drilling of coalbed methane wells. The cylindrical method is not suitable for coalbed methane wells due to the long obstacle-free section when performing 3D obstacle drilling. 3D Obstacle Drilling

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  • Three-dimensional barrier-bypassing well drilling design method and device, and computer storage medium
  • Three-dimensional barrier-bypassing well drilling design method and device, and computer storage medium
  • Three-dimensional barrier-bypassing well drilling design method and device, and computer storage medium

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no. 1 example

[0029] The applicant found that coalbed methane refers to the hydrocarbon gas stored in the coal seam with methane as the main component, mainly adsorbed on the surface of coal matrix particles, and partly free in coal pores or dissolved in coal seam water. Associated mineral resources are unconventional natural gas, a clean and high-quality new energy that has emerged internationally in the past ten or twenty years. Coalbed methane is mainly exploited by ground drilling, and the well depth is generally between 500 meters and 1000 meters. Compared with conventional oil and gas drilling, the well depth is small, and the well section that can be used for obstacle avoidance adjustment in the process of directional drilling is short, and obstacle avoidance is difficult. When performing 3D obstacle drilling of coalbed methane wells, the existing methods for conventional oil and gas drilling are not applicable. When using the commonly used cylinder method for 3D obstacle drilling, on...

no. 2 example

[0046] In order to cooperate with the three-dimensional obstacle avoidance drilling design method provided in the first embodiment of the present invention, the second embodiment of the present invention further provides a three-dimensional obstacle avoidance drilling design device 100 .

[0047] Please refer to Figure 5 , Figure 5 It is a block diagram of a three-dimensional obstacle avoidance drilling design device provided by the second embodiment of the present invention.

[0048] The three-dimensional obstacle avoidance drilling design device 100 includes a model building module 110 and a trajectory design module 120 .

[0049] The model building module 110 is used to determine the part of the adjacent well that constitutes an obstacle well section for the well to be drilled according to the actual drilling trajectory of the adjacent well, and the self-dimensional parameters, remeasurement error, and single-point inclinometer error of the obstacle well section Superim...

no. 3 example

[0055] Please refer to Image 6 , Image 6 The third embodiment of the present invention provides a structural block diagram of an electronic device applicable to the embodiments of the present application. The electronic device 200 provided in this embodiment may include a 3D obstacle avoidance drilling design device 100 , a memory 201 , a storage controller 202 , a processor 203 , a peripheral interface 204 , an input and output unit 205 , an audio unit 206 , and a display unit 207 .

[0056]The memory 201, storage controller 202, processor 203, peripheral interface 204, input and output unit 205, audio unit 206, and display unit 207 are electrically connected to each other directly or indirectly to realize data transmission or interact. For example, these components can be electrically connected to each other through one or more communication buses or signal lines. The three-dimensional obstacle avoidance drilling design device 100 includes at least one software that can...

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Abstract

The invention provides a three-dimensional barrier-bypassing well drilling design method and device, and a storage medium, and relates to the technical field of coalbed gas well drilling. The three-dimensional barrier-bypassing well drilling design method comprises the steps that the part of a barrier well section of an adjacent well to a to-be-drilled well is determined according to an actual drilling trajectory of the adjacent well, the self-size parameter, the repetition measurement error and the single shot instrument error of the barrier well section and the measurement error and the actual drilling well trajectory control error of the to-be-drilled well are superposed, and thus a barrier interval model of the barrier well section is established; and the minimum anti-collision distance is obtained through the barrier interval model, and a barrier-bypassing track is designed based on the minimum anti-collision distance, so that the to-be-drilled well safely bypasses a barrier interval corresponding to the barrier interval model. According to the three-dimensional barrier-bypassing well drilling design method, the barrier interval model is established through error superposition, thus the minimum anti-collision distance is more accurate, accordingly the barrier-bypassing well section is effectively shortened, and the safety factor of barrier-bypassing well drilling is increased.

Description

technical field [0001] The present invention relates to the technical field of coalbed methane drilling, in particular to a three-dimensional obstacle avoidance drilling design method, device and computer storage medium thereof. Background technique [0002] Directional drilling technology has become an important technical means for oil and gas exploration and development. The two-dimensional wellbore trajectory with the wellbore axis changing within a certain plumb plane can meet the demand in the early stage of exploration and development. However, with the deepening of exploration and development, due to Affected by complex factors such as ground conditions, obstacles, anti-collision distance, and industrial-peasant relations, the two-dimensional well track cannot guarantee safe anti-collision and obstacle-avoiding drilling construction. Three-dimensional obstacle avoidance drilling technology is of great significance for realizing geological purposes, preventing wellbore...

Claims

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Application Information

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IPC IPC(8): E21F7/00G06F17/50
CPCE21F7/00G06F30/23
Inventor 李鹏飞霍轩马信缘白楠孙聪杨福苗
Owner 李鹏飞
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