Casing drilling equipment control method and device, electronic equipment and drilling system

A technology of equipment control and casing drilling, which is applied to the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc. It can solve the problems of low efficiency, avoid stuck pipe, improve casing drilling efficiency, and shorten casing drilling the effect of time

Pending Publication Date: 2022-08-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a casing drilling equipment control method, device, electronic equipment and drilling system, which solves the problem of low efficiency caused by static observation of well diameter reduction and improves casing drilling efficiency

Method used

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  • Casing drilling equipment control method and device, electronic equipment and drilling system
  • Casing drilling equipment control method and device, electronic equipment and drilling system
  • Casing drilling equipment control method and device, electronic equipment and drilling system

Examples

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Effect test

Embodiment 1

[0067] figure 2 A flowchart of a method for controlling casing drilling equipment provided in an embodiment of the present disclosure, the method is applied to a casing drilling equipment control device, and the casing drilling equipment includes a drill bit, a well-passing equipment, a casing shoe and a casing , and the stiffness of the well-passing equipment is greater than the stiffness of the casing, such as figure 2 As shown, the executive body of this embodiment is a casing drilling equipment control device, and a casing drilling equipment control method provided by an embodiment of the present disclosure includes:

[0068] S21. Control the drill bit to drill from the initial depth to the preset depth according to the preset drilling strategy, and control the drill bit to perform back-reaming processing on the oil well, so as to obtain the back-reaming time, wherein the initial depth is the casing The depth of where the shoe is located.

[0069] Wherein, the preset d...

Embodiment 2

[0080] image 3 The flow chart of another casing drilling equipment control method provided by the embodiment of the present disclosure, such as image 3 As shown, the executive body of this embodiment is a casing drilling equipment control device. In order to better control the running of the well-passing equipment in the oil well, the casing drilling equipment control method provided by the embodiment of the present disclosure further includes before S22:

[0081] S24. Raise the drill bit to the starting depth.

[0082] Wherein, the starting depth is the depth where the casing shoe is located.

[0083] In this embodiment, after the drill bit is raised to the initial depth, the drill bit can be replaced, and the generated oil well is processed by using the well-passing equipment, so as to reduce the interference of the drill bit with the well-passing equipment.

Embodiment 3

[0085] The execution body of this embodiment is the casing drilling equipment control device. The casing drilling equipment control method provided by the embodiment of the present disclosure is a further description of step S21 in the first embodiment. In this embodiment, the preset drilling strategy is: The segmented drilling strategy, correspondingly, S21 includes:

[0086] S211. Set a plurality of target depths within a preset depth range, where the preset depth range is a range between the starting depth and the preset depth.

[0087] In this embodiment, the purpose of setting multiple target depths is to perform segmented drilling, and segmented drilling can perform drilling and back-reaming in segments, so as to ensure the smoothness of newly generated well sections and avoid early generation of wells. Severe diameter reduction problem occurred in the segment.

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Abstract

The invention provides a casing drilling equipment control method and device, electronic equipment and a drilling system, a drill bit is controlled to drill from an initial depth to a preset depth according to a preset drilling strategy, the drill bit is controlled to perform back reaming treatment on an oil well to obtain back reaming time, and the initial depth is the depth of the position where a casing shoe is located; the drifting equipment is controlled to be lowered from the initial depth to the preset depth according to the preset speed, so that drifting time is obtained; and according to the back reaming time and the drifting time, the casing pipe is controlled to be lowered in the oil well. According to the scheme, the problem of low efficiency caused by static observation of hole diameter reduction can be solved, the casing drilling time is shortened, and the casing drilling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a casing drilling equipment control method, device, electronic equipment and drilling system. Background technique [0002] During the drilling process of the petroleum salt-gypsum layer, due to the characteristics of the salt-gypsum layer itself, the formed oil well will have the wellbore spalling, which will reduce the well diameter and affect the drilling efficiency. . [0003] The existing casing drilling technology uses the drill bit to drill into the salt and gypsum layer to form an oil well. After static observation of the change of the well diameter, the casing set outside the drill bit is lowered to seal off the rock that has been peeled off the well wall and complete the solidification process. well. [0004] However, in the prior art, it is necessary to repeatedly observe the reduction of the well diameter and control the drill bit to pass the well b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B44/00
CPCE21B44/00
Inventor 周健王延民邹博包盼虎文涛丁峰晁申王关锁
Owner PETROCHINA CO LTD
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