Stratum lithology and fluid identification method and device based on seismic data

A technology of formation lithology and seismic data, applied in seismic signal processing and other directions, can solve the problems of single data and strong multi-solution

Inactive Publication Date: 2016-11-30
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the fact that most of the current seismic inversion methods for formation lithology and fluid are based on post-stack wave impedance inversion results, there are problems of single data and strong multi-solution, this disclosure proposes a method based on pre-stack seismic elastic attributes and applying Bayesian classification criteria Methods for Lithology and Fluid Identification

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
  • Stratum lithology and fluid identification method and device based on seismic data
  • Stratum lithology and fluid identification method and device based on seismic data
  • Stratum lithology and fluid identification method and device based on seismic data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure 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 disclosure to those skilled in the art.

[0014] figure 1 A flow chart of a method for identifying formation lithology and fluid based on seismic data according to an embodiment of the present invention is shown, the method includes:

[0015] Step 101, based on the pre-stack seismic data volume in the work area, the elastic properties are obtained through pre-stack elastic parameter inversion;

[0016] Step 102, using depth domain logging data, based on petrophysical intersection ...

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 provides a stratum lithology and fluid identification method and device based on seismic data. The method comprises the steps of: based on a work area pre-stack seismic data body, obtaining elastic attributes by means of pre-stack elastic parameter inversion; based on rock physical cross analysis, utilizing depth domain logging data to select sensitive elastic attributes sensitive to the lithology and fluid of a target stratum from the obtained elastic attributes; based on logging data of a work area target stratum, utilizing a Bayes classification criterion to construct a Bayes classifier using the lithology and fluid attributes as classification targets; and inputting the sensitive elastic attributes into the Bayes classifier, and obtaining the space distribution characteristics of the lithology and fluid.

Description

technical field [0001] The disclosure belongs to the field of seismic data inversion in oil and gas geophysical exploration, and specifically relates to a method and device for identifying formation lithology and fluid based on seismic data. Background technique [0002] In the past, seismic exploration used seismic data for structural interpretation, and searched for oil and gas reservoirs through structural traps. As the degree of exploration increases, the technical center of seismic exploration has shifted from simply looking for geological structural oil and gas reservoirs to looking for lithologic oil and gas reservoirs, and the proportion of found lithologic trap oil and gas reservoirs is increasing year by year. Conventional seismic lithology identification methods mainly rely on wave impedance, which has insurmountable multi-solutions. Therefore, finding an effective lithology and fluid identification technology can solve the lithology and fluid identification of li...

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): G01V1/28
Inventor 胡华锋朱童张克非杨丽林正良
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap