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A test method for cavitation reservoir improvement test

A technology of reservoir modification and test method, which is applied in the direction of earthwork drilling and production, wellbore/well components, etc., and can solve problems such as pollution, high energy consumption, and exacerbated reservoir heterogeneity

Active Publication Date: 2022-05-17
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0002] Unconventional oil and gas fields are currently a hot spot in oil and gas development, and reservoir stimulation is one of the key technologies to realize the development of unconventional oil and gas fields. However, traditional reservoir stimulation technologies usually have serious pollution, high energy consumption, and easy to aggravate reservoir heterogeneity. Sexual shortcomings

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  • A test method for cavitation reservoir improvement test
  • A test method for cavitation reservoir improvement test
  • A test method for cavitation reservoir improvement test

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] figure 1 It is a schematic diagram of a cavitation reservoir reconstruction test method provided by an embodiment of the present invention, figure 2 It is a schematic diagram of the layout of the detection unit provided by an embodiment of the present invention, image 3 It is a schematic diagram of the sensor structure provided by an embodiment of the present invention, Figure 4 It is a schematic diagram of the installation position of the rock sample side vibration sensor provided by...

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Abstract

The invention discloses a cavitation reservoir transformation test method, comprising: setting a simulated wellbore on a rock sample and installing the rock sample on a stand; The cavitator is installed in the simulated wellbore, and the connecting pipe is clamped and fixed by the bench; the detection unit is installed on the rock sample; a high-pressure pump is connected to the end of the connecting pipe away from the cavitator set, install the rock sample and the bench into the test pool; turn on the high-pressure pump set and record the data measured by the detection unit. The present invention makes the liquid form a cavitation effect through the cavitation device in the simulated wellbore extending to the rock sample, and analyzes the pressure and vibration of the fluid in the simulated wellbore during cavitation reservoir reformation by collecting the vibration and fluid pressure data during the cavitation test And the transmission law of vibration shock wave in rock samples reveals the working mechanism of cavitation reservoir stimulation technology.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a cavitation reservoir reconstruction testing method. Background technique [0002] Unconventional oil and gas fields are currently a hot spot in oil and gas development, and reservoir stimulation is one of the key technologies to realize the development of unconventional oil and gas fields. However, traditional reservoir stimulation technologies usually have serious pollution, high energy consumption, and easy to aggravate reservoir heterogeneity. sexual shortcomings. In order to overcome the shortcomings of traditional reservoir stimulation technology and realize efficient and green oil and gas extraction, in recent years, the engineering community has proposed the technical concept of using cavitation technology to realize reservoir stimulation. [0003] Cavitation is the process of the formation, development and collapse of vapor or gas cavities (cavitations...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/00E21B49/08
CPCE21B49/00E21B49/08
Inventor 敬佳佳邱晨昊王国荣胡刚唐曦邱志礼何航宇
Owner SOUTHWEST PETROLEUM UNIV
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