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A Fracture Analysis Method Based on Fracture Occurrence

An analysis method and fracture occurrence technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to group analysis, and achieve the effect of improving development efficiency, improving exploration and development accuracy, and improving research accuracy.

Active Publication Date: 2018-02-09
PST SERVICE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing technology can only analyze the fracture as a whole, calculate the total fracture density, and cannot perform group analysis

Method used

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  • A Fracture Analysis Method Based on Fracture Occurrence
  • A Fracture Analysis Method Based on Fracture Occurrence
  • A Fracture Analysis Method Based on Fracture Occurrence

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 As shown, the present invention provides a crack analysis method based on crack occurrence, which specifically includes the following steps:

[0019] 5) Load data information such as depth, inclination and azimuth of fractures, and display the fractures in the well as shown in Fig. figure 2 shown in the SMIT diagram.

[0020] In the SMIT map, the north N is 0°, and one circle clockwise represents 0°~360°. The inclination angle of the center point of the SMIT diagram is 0°, and the inclination angle of the outermost edge is 90°, and each crack is displayed in the form of a small triangle in the figure 2 middle.

[0021] 2) According to the dip and azimuth ranges of the fractures, the fractures are grouped in the SMIT diagram, and divided into low-angle fractures and high-angle fractures with different strikes. The specific...

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Abstract

The invention relates to a fracture analysis method based on the fracture occurrence, which comprises the following steps: loading the depth, dip and azimuth information of the fracture, and displaying the fracture in the well in the SMIT diagram according to the occurrence of each fracture; The range of dip angle and azimuth angle, the fractures are grouped in the SMIT diagram, divided into low-angle fractures and high-angle fractures with different strikes; the dip angle and azimuth angle information of different groups of fractures are counted in groups; the selected fractures are used to calculate the fractures of different groups Linear density, area density and bulk density. The beneficial effects of the present invention are: the cracks can be grouped and analyzed on the basis of grouping, and the crack densities of different groups of cracks with different occurrences can be calculated, so as to improve the accuracy of crack analysis, make crack analysis better serve production, and improve crack oil production. It improves the precision of reservoir research, improves the exploration and development precision of fractured reservoirs, and helps improve the development efficiency of fractured oil and gas.

Description

technical field [0001] The invention belongs to the field of petroleum exploration and development, and in particular relates to a fracture analysis method based on fracture occurrence. Background technique [0002] Fractures are crucial to the exploration and development of oil and gas reservoirs, and fracture analysis is an important technical link in fracture research. Fractures with different occurrences have different openings and transmission rates, and their contributions to reservoir seepage are also different. Therefore, fracture research and fracture modeling need to group fractures according to occurrences, and calculate the fractures of different groups of fractures based on the grouping. density. However, the existing technology can only analyze the fracture as a whole, calculate the total fracture density, and cannot perform group analysis. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the present invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 姜玉新崔勇
Owner PST SERVICE CORP
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