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

Method for representing lithologic boundaries of complex structure area

A lithology and boundary technology, which is applied in earth-moving drilling, wellbore/well components, etc., can solve the problems of low reservoir prediction accuracy and difficulty in meeting the identification requirements of lithologic traps.

Inactive Publication Date: 2019-03-08
CHINA PETROLEUM & CHEM CORP +1
View PDF14 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a lithological boundary characterization method in structurally complex areas, which is used to solve the problem in the prior art that the accuracy of reservoir prediction is low and it is difficult to meet the identification requirements of lithologic traps

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
  • Method for representing lithologic boundaries of complex structure area
  • Method for representing lithologic boundaries of complex structure area
  • Method for representing lithologic boundaries of complex structure area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0025] The invention uses geological means to carry out characterization of lithological boundaries, and to identify fault-lithological and lithologic traps. Since the old area has a certain well pattern density, it can provide rich information for the fine description of the reservoir. Therefore, it is feasible to use geological means to characterize the lithological boundary. It needs to be constrained by sedimentary microfacies means and lithology and electrical data Comprehensive description of lithological boundaries. Based on this, a lithological boundary characterization method in structurally complex areas is proposed. In this method, all wells in the study area are first divided into single layers, and an isochronous stratigraphic comparison framework is established. A single layer refers to a single sedimentary unit perpendicular to the ...

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 method for representing lithologic boundaries of a complex structure area. The method comprises the steps that all well strata of a study area are divided into single layers,and an isochronal stratum correlation framework map is established; all the single layers are subjected to sedimentary microfacies recognition in a well-by-well mode, and sand body boundaries of all the single layers are determined according to a sedimentary microfacies recognition result and the sandstone thickness distribution situations of all the single layers; the sand body boundaries are restrained according to the lithologic and electrical characteristics of the positions where all wells in the single layers are located, and the relationship between all the wells and the lithologic boundaries is determined; and according to the sandstone thickness distribution situations of the single layers and the relationship between all the wells and the lithologic boundaries, the lithologic boundaries of all the wells of the single layers are combined, and the lithologic boundaries of the complex structure area are represented. Representing can be completed only through a geological means without prediction and judgment of a seismic reservoir; analysis is conducted through the relationships among the sedimentary microfacies, lithologic and electrical characteristics of the single wells,thus the lithologic boundaries can be judged, and the single layers does not need to be subjected to any treatment; and as for the complex structure area, the lithologic boundaries can be efficientlycharacterized through the geological means.

Description

technical field [0001] The invention belongs to the technical field of oil and gas rolling exploration reservoir geology research, and in particular relates to a lithological boundary characterization method in a structurally complex area. Background technique [0002] With the continuous deepening of petroleum exploration and development, and the complex structural background of the sag, the sag has undergone multiple structural interpretations and trap evaluations, and most reliable structural oil reservoirs have been discovered. If you continue to search for structural oil reservoirs, it will be more difficult. Therefore, searching for fault-lithology and lithology-like reservoirs is an important field for increasing reserves in the next step. [0003] The key to finding fault-lithology and lithology-type reservoirs is the characterization of lithological boundaries. However, the conventional lithological boundary characterization is based on seismic data reservoir predic...

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): E21B49/00
CPCE21B49/00
Inventor 王树芳于群达吴群范凤英贾艳霞马玉张晓亮朱煜华杨星李锋
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com