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Method and device for correcting position of crack zone

A correction method and fracture zone technology, applied in the field of geological exploration, can solve problems such as poor adaptability, and achieve the effect of convenient porosity

Active Publication Date: 2018-08-07
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in reality, there may be a fracture zone formed by multiple fractures, and the above method has poor adaptability in identifying the location of the fracture zone due to the interference between fractures

Method used

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  • Method and device for correcting position of crack zone
  • Method and device for correcting position of crack zone
  • Method and device for correcting position of crack zone

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Embodiment Construction

[0018] The technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the implementations of this specification, not all of them. Based on the implementations in this specification, all other implementations obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0019] see figure 1 . This manual provides a method for correcting the position of the fracture zone. The method for correcting the position of the fracture zone may include the following steps.

[0020] In this embodiment, the object that executes the method for correcting the position of the fracture zone may be an electronic device with a logic operation function. The electronic devices may be servers and clients. The client can be a desktop ...

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Abstract

The invention aims to provide a method and a device for correcting the position of a crack zone. The method comprises the steps of acquiring Stoneley wave signals in sound wave logging data; obtainingthe Stoneley wave energy representation values of the depth positions according to the time data of the Stoneley wave signals at each depth position and Stoneley wave amplitude, correcting the position information of the crack zone according to the maximum value and the minimum value of the Stoneley wave energy representation values in the depth dimension to obtain second position information, wherein the depth position data corresponding to the minimum value is the upper boundary depth data of the crack zone in the second position information, and the depth position data corresponding to themaximum value is the lower boundary depth data of the crack zone in the second position information. According to the embodiment of the invention, the position information, including depth data and width data, of the crack zone is corrected.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to a method and device for correcting the position of a fracture zone. Background technique [0002] Carbonate reservoirs are the main replacement areas of my country's onshore petroleum reserve resources and the main target of reserve growth. The main characteristics of this reservoir are strong heterogeneity of rock and low matrix porosity. For such complex reservoirs, fractures are not only the main seepage channels, but also control the development of dissolved pores and caves, as well as the distribution of original fluids in the formation and the characteristics of mud invasion. Fractures usually exist in the form of fracture clusters underground, that is, there are many fractures in a certain depth range, forming a fracture zone. How to use logging data to accurately identify and quantitatively evaluate the development of fracture zones has great impact on carbonate oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/00G01V1/40
CPCG01V1/00G01V1/40
Inventor 李宁刘鹏武宏亮王克文冯庆付冯周李雨生
Owner PETROCHINA CO LTD
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