Experimental device and method for simulating sand body liquefaction intrusion trigger mechanism and formation process

A technology of trigger mechanism and experimental device, applied in the field of geological exploration, can solve the problems of too simple simulation parameters, no change of fluid properties between pores, lack of key parameters, etc.

Active Publication Date: 2019-04-09
HENAN POLYTECHNIC UNIV
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Problems solved by technology

However, these two simulation devices are too simple, the simulation parameters involved are too simple, the simulation conditions are too ideal, and the acquisition of many key parameters is lacking, which makes the experiment have major defects, such as not changing the fluid properties between the holes, not setting the dynamic mode but The simulated phenomena obtained only through the phase change of high-pressure fluid cannot be effectively characterized for the extremely complex formation process of sandstone intrusion

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  • Experimental device and method for simulating sand body liquefaction intrusion trigger mechanism and formation process

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Embodiment Construction

[0042] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] refer to figure 1 , an experimental device for simulating the trigger mechanism and formation process of sand body liquefaction invasion, including a formation model carrier, a fluid supply system, a power source, a pressurizer, a heating system, a parameter sensor, a processing and statistics system;

[0044] The formation model carrier mainly includes a high-strength transparent container 6, a top piston, a bottom piston, an upper heating layer, a lower heating layer and simulated formations (upper muddy layer model 9, sandy layer model, and lower muddy layer model). The carrying container of the experimental formation model, the experimental rock formation can be composed of particles of different properties and different particle sizes (the particles of different properties are quartz, feldspar, cl...

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Abstract

The invention discloses an experimental device and a method for simulating the sand body liquefaction intrusion trigger mechanism and formation process. The device comprises a formation model carrier,a fluid supply system, a power source, a pressurizer, a heating system, a parameter sensor, a processing, and a statistical system. The invention also discloses an experimental method for simulatingthe sand body liquefaction intrusion trigger mechanism and formation process. The experimental device and method for simulating sand body liquefaction intrusion trigger mechanism and formation processcan simulate the acquisition of fluid pressure change between pores, fluidization of sand, and rupture of dense surrounding rock based on the establishment of a sediment model by adjusting the overburden pressure, the fluid properties between the holes, the dynamic vibration mode, the temperature and so on, and can reveal the formation mechanism and control factors of sandstone intrusions in thestatistical analysis of various parameters and phenomena.

Description

technical field [0001] The invention belongs to the technical field of geological exploration, and relates to an experimental device and method for simulating the trigger mechanism and formation process of sand body liquefaction invasion. Background technique [0002] As the blood of industrial society, oil and gas have become a necessity in every corner of our life. At the same time, as the main fossil energy, no suitable alternative energy has been found. With the continuous advancement of oil and gas exploration and development at home and abroad, easy-to-find oil and natural gas resources have been discovered, and subtle oil and gas reservoirs have become the main target areas of oil and gas exploration in the 21st century. Up to now, the exploration of lithological, stratigraphic and other genetic traps has been developed for nearly 20 years, and there has been no new breakthrough in new subtle trap types, and it is imminent to find new types of reservoirs and traps. ...

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Application Information

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IPC IPC(8): G01N15/08G01N13/00G01N33/24G01N1/28G01D21/02
CPCG01D21/02G01N1/286G01N13/00G01N15/08G01N15/0826G01N33/24
Inventor 吴伟于静张苗苗阮帅夏璐璐汪恒慧陈滢
Owner HENAN POLYTECHNIC UNIV
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