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Volume fractured horizontal well feature point fitting inversion method, electronic equipment and medium

A technology for volume fracturing and horizontal wells, applied in design optimization/simulation, instrumentation, data processing applications, etc., to achieve the effect of improving accuracy and accurate seepage mathematical model

Pending Publication Date: 2021-08-13
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In view of the above problems, there is currently a lack of well testing models and rapid dynamic inversion methods that can effectively describe the characteristics of volume fracturing in horizontal wells

Method used

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  • Volume fractured horizontal well feature point fitting inversion method, electronic equipment and medium
  • Volume fractured horizontal well feature point fitting inversion method, electronic equipment and medium
  • Volume fractured horizontal well feature point fitting inversion method, electronic equipment and medium

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Embodiment Construction

[0051] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0052] figure 1 A flowchart showing the steps of the volume fracturing horizontal well feature point fitting and inversion method according to the present invention.

[0053] In this embodiment, the feature point fitting and inversion method for volume fracturing horizontal wells according to the present invention may include: step 101, establishing a mathematical model of volumetric fracturing horizontal well partition seepage; step 102, solving volume fracturing horizontal well part...

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Abstract

The invention discloses a volume fractured horizontal well feature point fitting inversion method, electronic equipment and a medium. The method comprises the following steps: establishing a volume fractured horizontal well partition seepage mathematical model; solving the volume fractured horizontal well partition seepage mathematical model, and then calculating the bottom hole pressure and the bottom hole pressure derivative; determining a plurality of feature points according to the volume fractured horizontal well bottom hole pressure derivative curve; establishing a fitting expression of each feature point and well test interpretation information; and adjusting the feature points so that the pressure derivative curve, the pressure curve and the corresponding actual well testing curve coincide, and then calculating well testing interpretation information. Mathematical analysis is performed according to seepage characteristics corresponding to different areas in a volume fractured horizontal well model, actual test well data of the volume fractured horizontal well are quickly and effectively fitted, and wellbore, reservoir and fracturing transformation parameters of the volume fractured horizontal well are obtained. And a basis is provided for well test interpretation and fracturing transformation effect evaluation of the volume fractured horizontal well.

Description

technical field [0001] The invention relates to the technical field of reservoir engineering well testing, and more specifically, to a method for fitting and inversion of characteristic points of volume fracturing horizontal wells, electronic equipment and media. Background technique [0002] Horizontal well volume fracturing is an effective means for the industrial development of low-permeability tight oil and gas reservoirs. Volume fracturing can realize the volume stimulation of oil and gas reservoirs in three directions: X, Y, and Z. This technology can not only greatly increase the single-well production of production wells, but also maximize the production degree and recovery rate of reservoirs. With the implementation of volume fracturing technology, how to use mathematical methods to describe the fracturing fracture network in the reservoir stimulation area, evaluate the fracturing effect, and determine the volume fracturing well reservoir, wellbore and fracturing st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/02
CPCG06Q50/02
Inventor 王欢计秉玉伦增珉吕成远赵淑霞何应付于洪敏
Owner CHINA PETROLEUM & CHEM CORP
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