Shale gas hydraulic fracturing physical simulation test system

A technology of hydraulic fracturing and physical simulation, which is applied in the fields of soil material testing, material inspection, and material analysis using acoustic wave emission technology. It can solve problems such as the inability to pump sand-containing liquids, avoid blind operations, and improve production. efficiency effect

Inactive Publication Date: 2017-12-29
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
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  • Application Information

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Problems solved by technology

However, there are still many bottlenecks in the development of physical simulation of shale gas hydraulic fracturing, such as hydraulic sand-bearing fracturing, because various pumps and hydraulic pumps cannot pump sand-containing liquid, a

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  • Shale gas hydraulic fracturing physical simulation test system
  • Shale gas hydraulic fracturing physical simulation test system
  • Shale gas hydraulic fracturing physical simulation test system

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[0026] It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0027] It should be noted that in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or...

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Abstract

The invention discloses a shale gas hydraulic fracturing physical simulation test system comprising a true tri-axial module, a hydraulic servo pumping pressure module, an acoustic emission module, a hydraulic sand fracturing module, and a control device. The true tri-axial module includes a test sample placement room, square pressing blocks, and first hydraulic devices connected with the square pressing blocks respectively. The acoustic emission module includes acoustic emission probes installed inside the test sample placement room, and a full-information acoustic emission analyzer host. The hydraulic servo pumping pressure module includes box bodies and high-pressure injection pumps, and hydraulic fracturing fluid in the box bodies is connected with a pre-arranged wellbore in a test sample through pipes. The hydraulic sand fracturing module includes a sand fluid container and a second hydraulic device, and the second hydraulic device includes a second hydraulic oil tank body, a second hydraulic motor-driven pump, a second three-level four-way electric hydraulic servo valve, a second relief valve, a second hydraulic cylinder, and a second hydraulic piston. The shale gas hydraulic fracturing physical simulation test system of the invention can simulate hydraulic sand fracturing experiments under different formation stress conditions.

Description

technical field [0001] The invention relates to the technical field of unconventional oil and gas reservoir development, in particular to a shale gas hydraulic fracturing physical simulation test system. Background technique [0002] One of the core technologies of shale gas exploitation is to fracturing the reservoir, that is, through horizontal wells combined with hydraulic fracturing technology to transform the reservoir to communicate natural fractures, and then generate a fracture network, and then use proppant to support the fractures. In this way, artificially increasing reservoir seepage channels can be realized. The operation mode of "well factory" has become one of the most efficient ways to develop shale gas. The purpose of smashing the reservoir is such an efficient and low-cost operation mode. Therefore, ascertaining and mastering the initiation conditions, extension rules and influencing factors of shale hydraulic fracturing fractures is very important for hy...

Claims

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Application Information

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IPC IPC(8): E21B49/00E21B43/26E21B43/267
CPCG01N29/14G01N33/24
Inventor 王荣璟解经宇彭力蒋国盛唐生荣
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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