Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method and device for detecting content of adsorbed gas in shale gas reservoir

A detection method and a technology for adsorbing gas, which are applied in the field of shale gas to achieve the effect of avoiding requirements and simple calculation methods

Active Publication Date: 2021-05-28
YANGTZE UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, it is necessary to provide a detection method and device for the content of adsorbed gas in shale gas reservoirs to solve the problem of how to perform real-time and efficient detection of adsorbed gas content

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 and device for detecting content of adsorbed gas in shale gas reservoir
  • Method and device for detecting content of adsorbed gas in shale gas reservoir
  • Method and device for detecting content of adsorbed gas in shale gas reservoir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The embodiment of the present invention provides a method for detecting the content of adsorbed gas in shale gas reservoirs, combining figure 1 look, figure 1 It is a schematic flow chart of the method for detecting the content of adsorbed gas in shale gas reservoirs provided by the present invention. The method for detecting the content of adsorbed gas in shale gas reservoirs includes steps S1 to S5, wherein:

[0045] In step S1, the depth to be detected, the preset logging curve, the low temperature gradient and the pressure gradient are obtained, wherein the preset logging curve is a curve formed during logging;

[0046] In step S2, determine the corresponding total organic carbon content according to the preset logging curve;

[0047] In step S3, determine the maximum adsorbed gas content according to the total organic carbon content;

[0048] In step S4, according to the maximum adsorbed gas content, the low temperature gradient, the depth to be detected and the ...

Embodiment 2

[0116] An embodiment of the present invention provides a detection device for adsorbed gas content in a shale gas reservoir, including a processor and a memory, and a computer program is stored in the memory. When the computer program is executed by the processor, the shale gas storage as described above is realized. Detection method of layer adsorbed gas content.

[0117] The invention discloses a method and device for detecting the content of adsorbed gas in shale gas reservoirs. Firstly, the depth to be detected, the preset logging curve, low temperature gradient and pressure gradient are effectively acquired; furthermore, the total organic carbon content is effectively determined. ; Then, use the total organic carbon content to determine the maximum adsorbed gas content, so as to feed back the maximum range of the adsorbed gas content; then, use the maximum adsorbed gas content, low temperature gradient, depth to be detected and total organic carbon content, combined with t...

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 relates to a method and device for detecting the content of adsorbed gas in a shale gas reservoir. The method comprises the steps that the depth to be detected, a preset logging curve, a low-temperature gradient and a pressure gradient are obtained; a corresponding TOC value is determined according to a preset logging curve; the maximum adsorbed gas content is determined according to the TOC value; according to the maximum adsorbed gas content, the low-temperature gradient, the depth to be detected and the TOC value, the temperature adsorbed gas content is determined; and the final adsorbed gas content corresponding to the depth to be detected is determined according to the temperature adsorbed gas content, the depth to be detected and the pressure gradient. According to the method, the shale adsorbed gas content is calculated by utilizing the depth to be detected and the TOC value, the shale reservoir adsorbed gas content can be calculated without a rock core experiment, and a new technical means is provided for directly evaluating the quality of the shale reservoir.

Description

technical field [0001] The invention relates to the technical field of shale gas, in particular to a method and a device for detecting the content of adsorbed gas in a shale gas reservoir. Background technique [0002] Shale adsorbed gas content is a key parameter for calculating shale gas resources, and the adsorption characteristics of shale gas are also an important criterion for evaluating whether shale has mining value. Forecasting is important. At present, there are mainly two methods for calculating the adsorbed gas content: the volumetric method and the analogy method. The analogy method is an evaluation area with a high degree of confidence in the thickness and area of ​​the gas-bearing shale section, and the analogy standard with similar geological and engineering conditions or the information of the evaluation demonstration area (probability distribution of gas content) is selected to obtain the evaluation area. Probability distribution of gas content or resourc...

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): G01N33/24
CPCG01N33/24
Inventor 聂昕万宇张超谟张占松张冲方思南
Owner YANGTZE UNIVERSITY
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
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