Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for establishing fracture-cavity reservoirs based on geometric gridding and parameter assignment

A technology for parameter allocation and establishment of methods, applied in the fields of seismology, instruments, measuring devices, etc., can solve the problems of difficult to reflect the geometric shape and spatial extension, and achieve the effect of reducing grid errors and reducing the number of grids

Active Publication Date: 2021-11-19
SOUTHWEST PETROLEUM UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although errors in the geometric model can be avoided, the simplified model is far from the real fracture-cavity structure, and it is difficult to reflect the complex geometry and spatial extension of actual underground fractures and caves

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for establishing fracture-cavity reservoirs based on geometric gridding and parameter assignment
  • A method for establishing fracture-cavity reservoirs based on geometric gridding and parameter assignment
  • A method for establishing fracture-cavity reservoirs based on geometric gridding and parameter assignment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] A fracture-vuggy reservoir establishment method based on geometric meshing and parameter assignment, specifically comprising the following steps:

[0040] step 1:

[0041] A picture of seismic attributes for the study area, such as figure 1 As shown, according to the type of reservoir space, it is divided into matrix, fracture zone and cave area.

[0042] Step 2:

[0043] like figure 2 As shown, according to the matrix, fracture zone and cave area obtained in step 1, three three-dimensional geometric models were respectively established to obtain the matrix model, fracture model, and cave model. The method of three-dimensional modeling for the research area refers to the existing technology For example, the three-dimensional model establishment method disclosed in the Chinese patent with the application number CN201510065198.6; in addition, any method in the prior art that can be used to realize the three-dimensional modeling of the research area in this patent can ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A fracture-vuggy reservoir establishment method based on geometric gridding and parameter assignment, comprising the following steps: according to the seismic attribute picture of the research area, it is divided into matrix area, fracture zone area and cave area according to the type of reservoir space and correspondingly generated Afterwards, each 3D geometric model is meshed and divided, and each grid node in the fracture model and cave model is matched with the grid node in the matrix model successively, and the matrix and fracture zone are obtained. , the fracture-cave-matrix model grid node of the physical property parameters of the cave permeability, based on the fracture-cave-matrix model grid node obtained in the previous step, the interpolation function corresponding to the permeability of the grid node spatial coordinates is constructed, and the fracture-cavity model is established. Carbonate reservoir model; the fracture-cavity carbonate reservoir model established based on the method of the present invention accurately restores the three-dimensional forms of real fracture zones and caves.

Description

technical field [0001] The invention relates to the technical field of modeling methods used in oil and gas field development engineering, in particular to a method for establishing fracture-cavity reservoirs based on geometric gridding and parameter distribution. Background technique [0002] Worldwide, the oil and gas production from carbonate rock reservoirs accounts for more than 60% of the total oil and gas production, and the contained oil and gas resources are huge. Among them, fracture-vuggy reservoirs account for more than 30% of carbonate reservoirs, which have excellent exploration and development prospects. In recent years, large-scale carbonate rock oil and gas fields have been discovered in Ordos, Sichuan, Tarim and other basins in my country. Therefore, the efficient development of fracture-vuggy carbonate reservoirs has become one of the focuses of research in recent years, which is of great significance for increasing oil and gas production and storage. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V1/30
CPCG01V1/282G01V1/306G01V2210/64
Inventor 路广张芮菡彭先赵玉龙赵梓涵吴婷婷张博宁
Owner SOUTHWEST PETROLEUM UNIV