Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rapid seismic random inversion method based on horizontal constraint

A stochastic inversion and horizontal technology, applied in the field of exploration geophysics, can solve problems such as inability to effectively reflect the geological characteristics of underground reservoirs, poor horizontal continuity, and low calculation efficiency, and achieve enhanced horizontal continuity, high vertical resolution, and horizontal good continuity effect

Active Publication Date: 2018-07-24
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problems to be solved by the present invention are: conventional random inversion has poor lateral continuity, cannot effectively reflect the geological characteristics of underground reservoirs, and has problems such as slow running speed and low calculation efficiency

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
  • Rapid seismic random inversion method based on horizontal constraint
  • Rapid seismic random inversion method based on horizontal constraint
  • Rapid seismic random inversion method based on horizontal constraint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be further described in detail below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] Such as figure 1 As shown, a flow chart of an embodiment of a fast seismic random inversion method based on lateral constraints in the present invention, the specific steps of this embodiment are as follows:

[0039] S101: Spatial structure analysis of well data: analyze the spatial structure of known well data, and calculate the mean value m and variance σ of wave impedance well data 2 , and use the variogram formula to calculate the variogram reflecting the underground geological structure.

[0040] Step S101 specifically ...

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

The invention discloses a rapid seismic random inversion method based on the horizontal constraint. The method comprises the steps of performing spatial structure analysis on the well data to obtain the variation function, solving the target interval horizontal correlation function, non-conditional simulation implementation, conditional processing and disturbance optimization for obtaining the optimal solution. The problems that the horizontal continuity of conventional random inversion is poor, the geological characteristics of the underground reservoirs cannot be effectively reflected, the operation speed is slow and the calculation efficiency is low can be solved. The horizontal correlation function is added in the covariance function of conventional calculation to act as the constraint, and random inversion is realized by using fast Fourier sliding mean spectral simulation with combination of the progressive deformation update method so that the inversion result is enabled to achieve the effect of high longitudinal resolution and great horizontal continuity. Compared with the conventional random inversion, the horizontal continuity of the inversion result can be enhanced, the calculation efficiency can be enhanced and the method plays an important role in subsequent reservoir identification and oil reservoir description.

Description

technical field [0001] The invention belongs to the field of exploration geophysics, in particular to a fast seismic random inversion method based on lateral constraints. Background technique [0002] Seismic inversion can be divided into two categories: deterministic inversion and stochastic inversion. Deterministic inversion uses seismic data as conditional data, and the inversion solution given has uniqueness and smoothness. Its advantages are small amount of calculation and fast calculation speed. It is characterized by taking well logging data as hard data and using seismic data as constraints, making full use of high-frequency information in well logging data, and using variogram to simulate randomly to obtain multiple simulation realizations, and it is compatible with seismic inversion Combining multiple inversion solutions and making a reasonable estimate of the uncertainty of the inversion results at the same time, it has the advantage of being able to simulate inf...

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 Applications(China)
IPC IPC(8): G01V1/30
CPCG01V1/306G01V2210/6226
Inventor 王保丽印兴耀刘婵娟郝雪景蔺营
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com