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Repeated fracturing indoor test device and operation method thereof

A technology for repeated fracturing and indoor testing, applied to measuring devices, using stable tension/pressure to test material strength, instruments, etc., can solve problems such as difficulty, high cost, and strong data dispersion, and achieve strong pertinence , Improve test efficiency, good flexibility

Pending Publication Date: 2019-02-01
SHANDONG UNIV
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Problems solved by technology

As the current refracturing technology is not yet mature, and the field test is difficult, expensive and the data is highly discrete, the laboratory test has become the basic means of refracturing theory and technology research.
However, there is currently no device specifically for indoor refracturing tests. Therefore, the development of a refracturing indoor test device can realize the physical simulation of shale refracturing process and the analysis of its influencing factors, which can provide theory and technology for actual engineering. support

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  • Repeated fracturing indoor test device and operation method thereof
  • Repeated fracturing indoor test device and operation method thereof
  • Repeated fracturing indoor test device and operation method thereof

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Embodiment Construction

[0045] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0046] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;

[0047] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present i...

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Abstract

The invention discloses a repeated fracturing indoor test device and an operation method thereof. The repeated fracturing indoor test device comprises a triaxial test platform, a triaxial stress loading system, a triaxial servo control system and a computer system. The triaxial test platform is used for placing a rock test piece, and is connected with the triaxial stress loading system and the triaxial servo control system; the triaxial stress loading system is used for providing axial pressure, confining pressure and hydraulic pressure; and the triaxial servo control system can accurately carry out servo control on the axial pressure, confining pressure and hydraulic and can transmit the acquired data to the computer system. According to the repeated fracturing indoor test device, the structure is simple, the operation is convenient, the test efficiency is high, and the modular design is adopted, so that the device is relatively high in pertinence and capable of effectively simulatingthe repeated fracturing process of the shale gas well, and intuitively observing the geometrical morphology of the hydraulic fracture, expansion, interaction and other phenomena, so that the shale gas well repeated fracturing theory and technical analysis are carried out, and guidance is provided for scientific research and engineering practice.

Description

technical field [0001] The invention relates to a hydraulic fracturing test device, in particular to an indoor test device for repeated fracturing and an operating method thereof. Background technique [0002] Shale gas is an unconventional natural gas resource. In recent years, with the depletion of conventional fossil energy, the importance of shale gas to economic and social development has been increasing, and its development and utilization technology has become a key topic of widespread concern in the academic and engineering circles. Hydraulic fracturing is a key technology for the development and utilization of shale gas, and its related research is increasing. Currently, there are many types of hydraulic fracturing techniques for shale gas wells. Among them, refracturing is one of the most important technologies, which is mainly realized in two ways: one is to prop up and extend the original fractures, and increase the scale of fracturing to increase the conductiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
CPCG01N3/12G01N2203/0003G01N2203/0019G01N2203/0048G01N2203/0067
Inventor 李术才盛祥超杨磊张霄李玮枢梅洁
Owner SHANDONG UNIV
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