Repeated water heat cracking device and application method thereof
A repeatable and fracturing technology, used in earth-moving drilling, production of fluids, wellbore/well components, etc., can solve the problems of many consumables, inconvenient transportation, environmental pollution, etc., to reduce costs and promote desorption.
Pending Publication Date: 2020-11-20
CHINA UNIV OF MINING & TECH
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Problems solved by technology
[0004] Coalbed methane is mostly exploited in deep wells below 600m. The use of disposable hydrothermal fracturing cylinders not only consumes a lot of materials and pollutes the environment, but also is inconvenient to transport and install.
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[0045] The present invention will be further described below in conjunction with the accompanying drawings.
[0046] Such as figure 1 As shown, this embodiment discloses a repetitive hydrothermal cracking device, including a repetitive hydrothermal cracking cylinder; the repetitive hydrothermal cracking cylinder is a rectangular parallelepiped iron cylinder.
[0047] The repetitive hydrothermal fracturing cylinder is provided with water bin one 1 , feed bin one 2 , feed bin two 3 and water bin two 4 sequentially from top to bottom.
[0048] The left side walls of the water bin one 1, the feed bin one 2, the feed bin two 3 and the water bin two 4 are respectively provided with a water filling port one 5, a filling port one 6, a filling port two 7 and a water filling port two 8. The water filling port one 5, the material filling port one 6, the material filling port two 7 and the water filling port two 8 are all one-way solenoid valves, and the one-way solenoid valve is connec...
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The invention discloses a repeated water heat cracking device. The repeated water heat cracking device comprises a repeated water heat cracking cylinder. A first water bin (1), a first material bin (2), a second material bin (3) and a second water bin (4) are arranged inside the repeated water heat cracking cylinder in sequence from top to bottom. A first water filling opening (5), a first material filling opening (6), a second material filling opening (7) and a second water filling opening (8) are formed in the left side walls of the first water bin (1), the first material bin (2), the secondmaterial bin (3) and the second water bin (4) correspondingly. The invention further discloses an application method of the repeated water heat cracking device. The repeated water heat cracking device and the application method of the repeated water heat cracking device achieve the purposes that the high-pressure gas generated by the phase change of high-pressure ionized water is automatically and continuously utilized to fracture the deep rock mass, the pulse impact on the fractured rock mass is continuously conducted, a large amount of residual ionized water can improve the formation of a volume crack, and therefore the desorption of the coal bed methane is more effectively promoted, and a gas generation channel is more effectively formed.
Description
technical field [0001] The invention belongs to the technical field of energy mining equipment, and in particular relates to a repetitive hydrothermal cracking device and a use method thereof. Background technique [0002] Coalbed methane refers to hydrocarbon gas stored in coal seams with methane as the main component, mainly adsorbed on the surface of coal matrix particles, and partly free in coal pores or dissolved in coal seam water. It is an associated mineral resource of coal. Coal bed methane is very clean after burning, and its calorific value is equivalent to that of natural gas. At the same time, coal bed methane is also a greenhouse gas, and its greenhouse effect is about 21 times that of carbon dioxide. Therefore, the development and utilization of coalbed methane has multiple effects, not only obtaining clean energy but also reducing greenhouse gas emissions. [0003] Exploitation of coalbed methane first requires effective fracturing of the coal seam to promot...
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IPC IPC(8): E21B43/26E21B43/00
CPCE21B43/26E21B43/006
Inventor 王恩元王小飞胡少斌季淮君
Owner CHINA UNIV OF MINING & TECH