Simulation device and method for microorganisms reinforcing natural gas hydrate reservoir
A hydrate and microorganism technology, applied in earthwork drilling, fluid extraction, measurement, etc., can solve problems such as feasibility limitation and lack, and achieve the effect of high modularization and integration.
Active Publication Date: 2021-01-08
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology
However, in the existing technology, there is a lack of experimental devices that can be used to study microbial reinforcement of gas hydrate reservoirs, which limits the feasibility of studying the application of microbial-induced mineralization technology in marine gas hydrate reservoirs
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[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0030] Please refer to Figure 1-2 , the embodiment of the present invention provides a reaction kettle, including a cylinder 10, a rubber sleeve 20, a first end seat and a second end seat 60, the cylinder 10 is arranged horizontally, its interior is hollow and its two ends are open, The rubber sleeve 20 is horizontally arranged in the cylinder body 10, and has a first accommodating cavity with a cylindrical structure, the first accommodating cavity is used to place samples, and the front and rear ends of the rubber sleeve 20 are all extended to the corresponding end close to the cylinder body 10, and fixedly connected with the inner side wall of the cylinder body 10, an airtight annular cavity 40 is formed between the outer side wall of the rubber sleev...
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The invention belongs to the technical field of unconventional energy natural gas hydrate development, and provides a simulation device for microorganisms reinforcing a natural gas hydrate reservoir.The device comprises a reaction kettle, a CT box, a gas storage tank, a pressurization system, a microorganism grouting system and a data acquisition system; a rotary workbench is arranged in the CT box, and the reaction kettle is fixed on the rotary worktable; a first gas outlet of the gas storage tank communicates with a gas inlet channel of the reaction kettle; an output end of the pressurization system communicates with a confining pressure input channel of the reaction kettle, and the pressurization system is used for controlling confining pressure and temperature in the reaction kettle;a first discharging end and a second discharging end of the microorganism grouting system both communicate with a grouting channel of the reaction kettle, and the microorganism grouting system is usedfor conveying microorganism bacterium liquid and cementing liquid into the reaction kettle; and the data acquisition system is connected with the reaction kettle, and used for acquiring temperature and pressure information in the reaction kettle.
Description
technical field [0001] The invention belongs to the technical field of unconventional energy natural gas hydrate development, and in particular relates to a device and method for simulating microorganisms to reinforce natural gas hydrate reservoirs. Background technique [0002] Natural gas hydrate is a new energy source with high efficiency, cleanliness and huge reserves. It has been included in the key research or development plans of the United States, Japan and other countries. breakthrough progress. The development of natural gas hydrate can greatly alleviate the scarcity and shortage of oil and natural gas and other resources. Since hydrate deposits exist in four media: gas, rock-soil framework, water, and solid hydrate, their mechanical properties are very complex with phase transitions. During the development and production of hydrate, methods such as decompression or temperature rise will decompose hydrate to varying degrees, and the mechanical properties such as ...
Claims
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IPC IPC(8): E21B43/01E21B43/22E21B47/06E21B47/07G06F30/20
CPCE21B43/01E21B43/16E21B47/06G06F30/20
Inventor 李丽霞刘天乐蒋国盛宁伏龙方长亮孙嘉鑫朱云飞刘昊东
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)