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Horizontal well pumping perforation critical displacement control analysis method, system and terminal

A critical displacement, control analysis technology, applied in complex mathematical operations, instruments, electrical and digital data processing, etc., can solve problems such as large amount of deviation correction calculation, high deviation frequency, difficult to achieve rapid response control, etc., to achieve flexibility and adaptability Strong performance, reducing the effect of deviation adjustment deviation and calculation amount

Pending Publication Date: 2022-04-12
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing pumping perforation displacement model does not take into account the influence of the overall structure of the perforating gun string on the pumping displacement in practical applications, and the inclination angle of the perforating gun string is not static and constant during actual movement , resulting in a high frequency of deviations of the perforating gun string under the influence of fluid mechanics and other environmental conditions. The model design is complex, the amount of calculation for deviation correction is large, and it is difficult to achieve fast response control

Method used

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  • Horizontal well pumping perforation critical displacement control analysis method, system and terminal
  • Horizontal well pumping perforation critical displacement control analysis method, system and terminal
  • Horizontal well pumping perforation critical displacement control analysis method, system and terminal

Examples

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Embodiment 1

[0042] Embodiment 1: A kind of horizontal well pumping perforation critical displacement control analysis method, such as image 3 shown, including the following steps:

[0043] S1: Obtain horizontal well parameters, perforating gun string parameters and pumped fluid parameters;

[0044] S2: Based on the horizontal well parameters, perforating gun string parameters and pumped fluid parameters, the critical displacement model is established after force balance analysis;

[0045] S3: collect the inclination angle and real-time pumping displacement of the perforating gun string;

[0046] S4: Input the inclination angle of the perforating gun string into the critical displacement model to calculate the critical pumping displacement;

[0047] S5: According to the real-time pumping displacement and the critical pumping displacement, a control strategy for controlling the displacement of the perforating gun string is generated.

[0048] The invention comprehensively considers the ...

Embodiment 2

[0063] Embodiment 2: A kind of horizontal well pumping perforation critical displacement control analysis system, such as Figure 4 As shown, it includes parameter acquisition module, model building module, data acquisition module, data calculation module and policy generation module.

[0064] Among them, the parameter acquisition module is used to obtain horizontal well parameters, perforating gun string parameters and pumping fluid parameters; the model building module is used to perform force balance analysis based on horizontal well parameters, perforating gun string parameters and pumping fluid parameters Finally, the critical displacement model is established; the data acquisition module is used to collect the inclination angle of the perforating gun string and the real-time pumping displacement; the data calculation module is used to input the inclination angle of the perforating gun string into the critical displacement model for calculation The critical pumping displa...

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Abstract

The invention discloses a horizontal well pumping perforation critical displacement control analysis method and system and a terminal, and relates to the technical field of oil and gas field development. According to the technical scheme, the method is characterized in that horizontal well parameters, perforation gun string parameters and pumping liquid parameters are obtained; according to the horizontal well parameters, the perforating gun string parameters and the pumping fluid parameters, stress balance analysis is conducted, and then a critical displacement model is established; the inclination angle and the real-time pumping displacement of a perforating gun string are collected; the inclination angle of the perforating gun string is input into a critical displacement model, and then the critical pumping displacement is obtained through calculation; and according to the real-time pumping displacement and the critical pumping displacement, a regulation and control strategy for controlling the displacement of the perforating gun string is generated. According to the method, the influence of the sleeve size, the property of the pumping liquid and the shape of the perforating gun string is comprehensively considered, the needed minimum pumping displacement, namely the critical pumping displacement, can be rapidly and accurately calculated, it is effectively guaranteed that the perforating gun string relatively stably and evenly advances in the horizontal section, and meanwhile the deviation adjustment deviation and the calculated amount are reduced.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, more specifically, it relates to a control analysis method, system and terminal for pumping and perforating critical displacement of horizontal wells. Background technique [0002] Unconventional oil and gas such as shale gas, shale oil, tight oil and tight gas are usually developed by horizontal well plus staged fracturing technology. The development wells are all completed by perforation, and the first stage of perforation is perforated by coiled tubing. The other sections are pumped perforating techniques. [0003] At present, the accuracy of the pumping displacement during pumping is crucial to the reliability of the movement of the perforating gun string. If the displacement is small, the pumped fluid will not be able to push the perforating gun string or the speed of the gun string will become smaller and smaller until If the displacement is too large, the string of g...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F17/10G06F119/14
Inventor 焦国盈王均徐家年张旭李孟昕常帅友张瑞雪
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY