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Pipe column and method for synchronous conversion of water injection and oil extraction of horizontal well based on signal control

A technology of signal control and synchronous conversion, applied in drilling equipment and methods, directional drilling, and production of fluids, etc., can solve the problem of reducing oil production, unable to achieve synchronous conversion of strata production and water injection oil production, swept volume and swept efficiency. Restrictions on the degree of recovery and other issues to achieve the effect of solving water channeling

Pending Publication Date: 2022-06-17
陆建峰 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to single-well injection and production, for oil and gas reservoirs with large oil layer areas, the swept volume, swept efficiency and recovery degree will be limited, thereby reducing oil production, and it is impossible to achieve staged production and water injection of rock formations Simultaneous conversion of oil recovery

Method used

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  • Pipe column and method for synchronous conversion of water injection and oil extraction of horizontal well based on signal control
  • Pipe column and method for synchronous conversion of water injection and oil extraction of horizontal well based on signal control
  • Pipe column and method for synchronous conversion of water injection and oil extraction of horizontal well based on signal control

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Embodiment 1

[0035] see Figure 1-2 , In the embodiment of the present invention, a pipe string for synchronous conversion of water injection and oil production in horizontal wells based on signal control includes a pipe pile body 1 and a signal control system for the pipe pile body 1, and the pipe pile body 1 extends along the pipe pile. At least one pipe pile section is provided in the direction, and the pipe pile section is provided with a water injection pipe 3 and an oil production pipe 6. The water injection pipe 3 is provided with a number of water injection holes 31, and the oil production pipe 6 is provided with a number of oil production holes 61. , inject water into the subterranean rock formation through the water injection hole 31, so that the rock formation is split to form rock fractures, and then the oil flowing out of the rock fracture is collected through the oil production pipe 5; the signal control system includes a signal acquisition module, a data processing module and...

Embodiment 2

[0046] see Figure 1-2 , In the embodiment of the present invention, a pipe string for synchronous conversion of water injection and oil production in horizontal wells based on signal control includes a pipe pile body 1 and a signal control system for the pipe pile body 1, and the pipe pile body 1 extends along the pipe pile. At least one pipe pile section is provided in the direction, and the pipe pile section is provided with a water injection pipe 3 and an oil production pipe 6. The water injection pipe 3 is provided with a number of water injection holes 31, and the oil production pipe 6 is provided with a number of oil production holes 61. , inject water into the subterranean rock formation through the water injection hole 31, so that the rock formation is split to form rock fractures, and then the oil flowing out of the rock fracture is collected through the oil production pipe 5; the signal control system includes a signal acquisition module, a data processing module and...

Embodiment 3

[0061] see Figure 4 , the embodiment of the present invention also discloses a method for synchronous conversion of horizontal well water injection and oil production based on signal control, comprising the following steps:

[0062] S100. Select a mining area, and build a horizontal well in the mining area;

[0063] S200, performing flushing and trial production on the horizontal well, then inserting the pipe pile body into the rock formation of the horizontal well and collecting video data and pressure data, and selecting a mining section according to the collected data;

[0064] S300, control the work of the separator at the corresponding position according to the position of the production section, separate the production section from the rock formation, and then perform perforation and fracturing treatment and oil production.

[0065] Further, in step S200 of the embodiment of the present invention, the method of flushing and trial production of the horizontal well is as...

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Abstract

The invention discloses a horizontal well water injection and oil extraction synchronous conversion tubular column based on signal control, which comprises a tubular pile body and a signal control system for the tubular pile body, the tubular pile body is provided with at least one tubular pile section along the extension direction of the tubular pile, and the tubular pile section is provided with a water injection pipe and an oil extraction pipe. A plurality of water injection holes are formed in the water injection pipe, and a plurality of oil extraction holes are formed in the oil extraction pipe; the signal control system comprises a signal acquisition module, a data processing module and a control module. The horizontal well is firstly built in the mining area, then the pipe pile body is led into the horizontal well rock stratum, video data collection and pressure data collection are carried out, the mining section is selected according to the collected data, finally, the separator at the corresponding position is controlled to work according to the position of the mining section, and the mining section is independent from the rock stratum. And then perforation fracturing treatment and oil exploitation are carried out.

Description

technical field [0001] The invention specifically relates to the technical field of horizontal wells, in particular to a pipe string and method for synchronous conversion of water injection and oil production in horizontal wells based on signal control. Background technique [0002] In recent years, due to the sharp decrease in the recoverable resources of conventional oil and gas, the exploration and development of unconventional oil and gas has become a new hot spot, and tight oil is one of them. Tight oil reservoirs are usually developed by depletion in the early stage of development. However, the natural energy of tight oil reservoirs in my country is generally insufficient. The depletion production method alone will cause the reservoir pressure to drop rapidly and the production to decline rapidly. Therefore, energy supplementation is required after a period of development. , such as water injection development, etc. [0003] The invention patent with the publication nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00E21B43/26E21B7/04E21B7/28E21B47/12E21B47/06E21B47/09E21B47/002
CPCE21B43/00E21B43/26E21B7/046E21B7/28E21B47/12E21B47/06E21B47/09E21B47/002
Inventor 陆建峰王胜奎马浩楠王庆陶瑞宋玮顾腾
Owner 陆建峰
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