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

A device and method for measuring rock wettability under different gas atmospheres

A technology of gas atmosphere and measuring device, which is applied in the field of devices for measuring high-pressure wettability, and can solve problems such as pore mechanism changes, inaccurate measurement, and volume expansion

Active Publication Date: 2021-03-23
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional rock wettability measurement method is carried out under normal pressure; it cannot be carried out under high pressure, after coal rock and shale absorb gas
Because shale gas and coalbed methane exist in an underground high-pressure environment, and after the coal rock / shale absorbs gas, its volume will expand, and the pore structure will change accordingly, resulting in inaccurate measurement by conventional methods

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
  • A device and method for measuring rock wettability under different gas atmospheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] see figure 1 , in an embodiment of the present invention, a rock wettability measurement device under different gas atmospheres, including a gas source and a pressure control part, a visual kettle sample chamber, a water storage tank 9, an air pressure drop assembly, image acquisition and processing Assembly, characterized in that the air source and pressure control part communicate with the water storage tank 9 through the pressure regulating valve 5, and the water storage tank 9 communicates with the visible kettle sample chamber through the air pressure drop assembly , the image acquisition and processing component is arranged on one side of the visible kettle sample chamber, and is used to take images of the situation in the visual kettle sample chamber and perform data processing on the captured images. Samples are arranged in the sample chamber.

[0031] In this embodiment, the air pressure dripping assembly includes a dripping tube 22, a trim valve 10, a pressur...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a rock wettability measuring device and method under different gas atmospheres. According to the rock wettability measuring device, an air source and pressure control part, a visual kettle sample bin, a water storage tank, an air pressure drip assembly, and an image collection and processing assembly are arranged. The air source and pressure control part is communicated with the water storage tank through a pressure regulating valve; and the water storage tank is communicated with the visual kettle sample bin through the air pressure drip assembly. The image collectionand processing assembly is arranged at one side of the visual kettle sample bin and is used for carrying out image shooting on the situation in the visual kettle sample bin and carrying out data processing on the shot image. Besides, a sample is arranged in the visual kettle sample bin. With the rock wettability measuring device and method, the wettability of rocks with adsorption-expanding properties under different pressures can be measured automatically.

Description

technical field [0001] The present invention relates to coal or shale and other adsorptive rocks, under different gas atmospheres (such as carbon dioxide, nitrogen and methane), after absorbing gas, the rock will expand after adsorption, and after the pore structure changes, the technical field of rock wettability testing, more accurately Said that the present invention relates to a device and method for measuring high-pressure wettability by forming sessile drops on the sample surface under different adsorption pressures. Background technique [0002] Wetting phenomena are ubiquitous in materials science. For example, in the development process of coalbed methane and shale gas, wettability has a key influence on the reservoir stimulation effect of shale or coal seam; wettability parameters of shale gas / coalbed methane drilling fluid or fracturing fluid configuration At the same time, wettability also affects the occurrence and flow of gas and water in rocks, and affects th...

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): G01N13/00G01N13/02
CPCG01N13/00G01N13/02G01N2013/0208G01N2013/0241
Inventor 张松航邢亚楠唐书恒
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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