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

Engineering sweet spot evaluation method

An engineering, sweet spot technology, applied in seismic signal processing and other directions

Active Publication Date: 2020-07-28
SOUTHWEST PETROLEUM UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently a lack of a reasonable and effective method for describing and evaluating the engineering sweet spots of conglomerate reservoirs

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
  • Engineering sweet spot evaluation method
  • Engineering sweet spot evaluation method
  • Engineering sweet spot evaluation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0081] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0082] It should be noted that like numeral...

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

Embodiments of the invention provide an engineering sweet spot evaluation method and device. According to the method and device, a prediction model for fragility indexes of stratum rocks in a to-be-evaluated work area is constructed by utilizing experiment data of a to-be-evaluated stratum rock, a prediction model for pore structure indexes is constructed according to logging information, and stratum pore pressure is calculated according to an effective stress theory and the logging information; furthermore, maximum horizontal main stress and minimum horizontal main stress of the to-be-evaluated work area are calculated according to an elastic combined model by utilizing vertical stress, the stratum pore pressure, fracturing information and rock mechanical parameters so as to determine a horizontal crustal stress difference; and finally, a comprehensive index model for engineering sweet spots is constructed by comprehensively utilizing the obtained fragility indexes, pore structure indexes and horizontal crustal stress difference. The method and device can reasonably describe the engineering sweet spots, effectively evaluate the engineering sweet spots of the stratum rocks, and provide effective reference basis for later stratum rock reservoir development.

Description

technical field [0001] The invention relates to the technical field of geological data analysis, in particular to an engineering sweet spot evaluation method. Background technique [0002] With the development of unconventional oil and gas resources such as shale gas and tight gas, the concept of fracture network volume stimulation has gradually been recognized, and multi-stage fracturing technology has been paid more and more attention. In multi-stage fracturing technology, how to design and divide multi-stage fracturing is a relatively important content, and this involves the evaluation of formation engineering sweet spots. The sweet spot of formation engineering is relative to the difficult-to-develop reservoir. If the sweet spot of reservoir engineering is better, it indicates that the formation is more brittle, easy to fracture, and easy to form fracture network, which is beneficial to the development of the reservoir. However, there is currently a lack of a reasonable...

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): G01V1/28
Inventor 熊健万有维刘向君梁利喜
Owner SOUTHWEST PETROLEUM UNIV
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