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Equipment and simulation method for simulating and improving shale fractures based on resonance technology

A simulation method and shale technology, which are applied in the preparation of test samples, earthwork drilling, wellbore/well components, etc., can solve the problems of inability to be close to the real underground environment, and achieve the effect of reliable simulation of experimental results.

Active Publication Date: 2022-02-11
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a device for simulating and improving shale fractures based on resonance technology, which aims to solve or at least to a certain extent solve the technical problem that the existing equipment for simulating and improving shale fractures cannot be close to the real underground environment

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  • Equipment and simulation method for simulating and improving shale fractures based on resonance technology
  • Equipment and simulation method for simulating and improving shale fractures based on resonance technology
  • Equipment and simulation method for simulating and improving shale fractures based on resonance technology

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.

[0030] It should be noted that the terms "length", "width", "height", "thickness", "top", "bottom", "front", "back", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed a...

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Abstract

The invention is applicable to the technical field of petrophysical simulation, and provides a device and a simulation method for simulating and improving shale fractures based on resonance technology. The equipment for simulating and improving shale fractures based on resonance technology includes oil tank, hydraulic unit, heating unit, vibration table, triaxial acceleration sensor and supporting control unit. The rear axle assembly provided by the present invention fills the oil tank with preset pressure and preset temperature hydraulic oil and seals the elastic membrane at the opening of the oil tank, and utilizes the elasticity of the elastic membrane to separate the rock sample The membrane protrudes into the oil tank, so that the rock samples can be subjected to resonance tests in the approximate environment at the coring position to obtain more reliable simulation test results.

Description

technical field [0001] The invention belongs to the technical field of petrophysical simulation, and more specifically relates to a device and a simulation method for simulating and improving shale fractures based on resonance technology. Background technique [0002] In recent years, the exploration and development of unconventional oil and gas such as shale gas has progressed very rapidly. However, compared with other unconventional oil and gas, shale gas and other unconventional oil and gas are facing great difficulties in exploration and development. For example, the permeability of shale reservoirs is extremely low, Different types of shale have strong heterogeneity due to their different intrinsic qualities, which has a great impact on later fracturing. Compared with conventional oil and gas, shale reservoirs are characterized by low porosity and low permeability. Shale gas often exists in nano- and micro-scale pores in free and adsorbed states. Therefore, it is necess...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/26E21B49/00G01N1/28G01N33/24
CPCE21B43/26E21B49/00G01N1/28G01N33/24
Inventor 王锡伟张金川刘飏陶佳李沛
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)