Multi-physics field evolution simulation testing device and method for natural gas hydrate exploitation

A simulation test, multi-physics technology, applied in the field of unconventional oil and gas reservoir development engineering, can solve problems affecting the safety of hydrate depressurization production, the smooth development of productivity efficiency on-site monitoring, limitations, and the inability to achieve hydrate decomposition front measurement, etc. problem, to achieve the effect of real-time measurement and continuous storage

Active Publication Date: 2018-05-01
QINGDAO INST OF MARINE GEOLOGY
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many countries have carried out the design and construction of hydrate mining simulation experimental devices, focusing on the measurement of temperature field and partial flow field (pore pressure and flow velocity) during hydrate mining, while the measurement of material content, especially the saturation of solid hydrate It is relatively rare, and it is impossible to measure the propagation process of the hydrate decomposition front, especially the propagation process of the hydrate decomposition front in deep-sea loose sediments, and there are few reports on the displacement field (strain)
Existing experimental devices limit the experimental simulation of multi-physics evolution mechanism of hydrate decompression mining, which affects the safety, production efficiency and on-site monitoring of hydrate decompression production.

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
  • Multi-physics field evolution simulation testing device and method for natural gas hydrate exploitation
  • Multi-physics field evolution simulation testing device and method for natural gas hydrate exploitation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be described in detail below in combination with specific embodiments.

[0040] The invention provides a multi-physical field evolution simulation test device for natural gas hydrate exploitation, such as figure 1 As shown, the reaction kettle 1 is included, and the reaction kettle 1 is arranged in the temperature control module 31. The reaction kettle 1 is connected with the liquid supply module 32, the gas supply module 33, the back pressure control module 34, the confining pressure loading module 35 and the data measurement and acquisition module respectively. 36 connected.

[0041] Such as figure 2 As shown, the two ends of the reaction kettle 1 are sealed with a threaded pressure sleeve through the left end cover 28-1 and the right end cover 28-2; Sample 4; the reactor 1 is provided with a first lead-out hole 25 and a second lead-out hole 26; the reactor 1 is connected with a first safety valve 18-1, between the reactor 1 and the first...

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 discloses a natural gas hydrate exploitation multi-physical field evolution simulation test device. The natural gas hydrate exploitation multi-physical field evolution simulation test device comprises a reactor; the reactor is arranged in a temperature control module; the reactor is connected with a liquid supply module, a gas supply module, a back pressure control module, a confining pressure loading module and a data measurement and acquisition module. The invention also discloses a natural gas hydrate exploitation multi-physical field evolution simulation test method. According to the method, an electrical resistance tomography technology is adopted to perform real-time measurement on material contents in sediments especially the saturation of hydrates; real-time measurement is performed on the volume change of the sediments based on the volume change of confining pressure fluid; and the experimental simulation work of temperature field, flow field and displacement field evolutionary processes in hydrate depressurization exploitation can be realized based on experimental data such as temperature, pore pressure and flow rate (gas generation and water generation rate).

Description

technical field [0001] The invention belongs to the technical field of unconventional oil and gas reservoir exploitation engineering, and in particular relates to a multi-physics field evolution simulation test device for natural gas hydrate exploitation, and also relates to a multi-physics field evolution simulation test method for natural gas hydrate exploitation. Background technique [0002] The exploitation of natural gas hydrate has been highly valued by governments, universities and research institutions of various countries, and has become a research hotspot in unconventional oil and gas reservoir engineering. my country's South China Sea is rich in hydrate resources, and the implementation of trial mining of hydrates in sea areas is imminent. However, there are still some problems in the mechanism of hydrate mining, especially the research on the evolution mechanism of multi-physics fields in the formation during hydrate mining is still not good. meet the actual need...

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): G01D21/02
CPCG01D21/02
Inventor 刘乐乐刘昌岭业渝光陈强胡高伟
Owner QINGDAO INST OF MARINE GEOLOGY
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
Try Eureka
PatSnap group products