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

Experimental method and device for simulating composite multi-layer gas reservoir exploitation

An experimental device and gas reservoir technology, which is applied in the field of simulating the exploitation of composite multi-layer gas reservoirs, can solve the problems that the original reservoir temperature conditions cannot be simulated, the liquid phase cannot be considered, and cannot be promoted

Inactive Publication Date: 2017-01-25
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF7 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that it can only simulate the same type of gas reservoir, but cannot simulate the exploitation of coalbed methane and shale gas reservoirs; it can only simulate the migration of single-phase gas in the reservoir, and cannot consider the liquid phase. Influence; cannot simulate the temperature conditions of the original reservoir
The disadvantages of this device are: the device can only simulate multi-coal seam mining, and cannot be extended to the simulation of multi-layer gas reservoir mining; it cannot simulate the temperature conditions of the original reservoir; methane can only be adsorbed on the water film , the adsorption amount obtained in the experiment is smaller than the actual situation
The disadvantage of this device is: the device can only simulate the migration of single-phase gas in the reservoir, and cannot consider the influence of the liquid phase, which is inconsistent with the actual situation of the shale reservoir; the device is simulated with a flat core in the flat model core holder The adsorption and desorption of shale gas cannot effectively simulate the three-dimensional stress environment of the original reservoir, and cannot accurately reveal the law of adsorption and desorption of shale gas in shale

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
  • Experimental method and device for simulating composite multi-layer gas reservoir exploitation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] like figure 1 As shown, the present invention provides an experimental device for simulating the coalbed methane / tight sandstone gas / shale gas combined bed mining process, including an injection system 1, a coal seam model system 2, a tight sandstone layer model system 3, a shale model system 4, Back pressure system 5, recovery system 6 and data acquisition system 7.

[0067] In the injection system, the injection system is connected to the inlet valve 2901 of the coal seam model system, the inlet valve 361 of the tight sandstone layer model system, and the inlet valve 4801 of the shale model system through the first multi-channel valve (six-way valve) 81 . The high-purity methane high-pressure gas cylinder 11 is connected to the valve 191, the booster pump 13, and the gas intermediate container 15 in sequence. The high-purity methane high-pressure gas cylinder 11 provides a stable gas source for the gas intermediate container 15, and the booster pump 13 is connected to...

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 an experimental method and device for simulating composite multi-layer gas reservoir exploitation. The device comprises an injection system (1), a coal seam model system (2), a dense sandstone layer model system (3), a shale model system (4), a back pressure system (5), a recovery system (6) and a data acquisition system (7), wherein the injection system (1) is connected with the coal seam model system (2), the dense sandstone layer model system (3) and the shale model system (4) via a first multi-channel valve (81); the coal seam model system (2), the dense sandstone layer model system (3) and the shale model system (4) are connected with the back pressure system (5) via a second multi-channel valve (82); the back pressure system (5) is connected with the recovery system (6); and the data acquisition system (7) is connected with the coal seam model system (2), the dense sandstone layer model system (3), the shale model system (4) and the recovery system (6).

Description

technical field [0001] The invention relates to the field of natural gas exploitation, in particular, the invention relates to an experimental method and device for simulating the exploitation of composite multi-layer gas reservoirs. Background technique [0002] The world is rich in unconventional natural gas resources, and abundant coalbed methane reservoirs, tight sandstone gas reservoirs and shale gas reservoirs are generally developed in major sedimentary basins. With the continuous expansion of the scale of exploration and development of unconventional gas reservoirs, the phenomenon of multilayer superposition of coal seams, tight sandstone layers and shale layers is becoming more and more common. For gas layers with a small thickness, single-layer mining has the problems of low production capacity and high mining difficulty. In order to improve the productivity and efficiency of gas wells and realize the efficient production of gas wells, domestic and foreign scholar...

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 黄亮石军太宁正福杨柳潘羽孙政于鹏亮王蕊张玲
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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