Test device for simulating shale damage casing and test method for simulating shale damage casing
A technology of test device and test method, applied in the direction of using stable shear force to test material strength, using stable tension/pressure to test material strength, etc., can solve problems such as easy damage of casing
Pending Publication Date: 2022-04-05
BC P INC CHINA NAT PETROLEUM CORP +1
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[0004] The main purpose of the present invention is to provide a test device for simulating shale damage casing and a test method for simulating shale damage casing, so as to solve the problem that the casing is easily damaged in the shale gas exploitation process in the prior art
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[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0026] In order to solve the problem that the casing 20 is easily damaged in the shale gas exploitation process in the prior art, the present invention provides a test device for simulating a shale damaged casing and a test method for simulating a shale damaged casing.
[0027] Please refer to Figure 1 to Figure 4 , a test device for simulating shale damaged casing, comprising: a sample assembly 10, the sample assembly 10 includes a first shale sample and a second shale sample, the first shale sample and the second shale sample are connected, wherein, The first shale sample is provided with a first installation groove, the second shale sample is provided with a second installation groove, and...
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The invention provides a test device and a test method for simulating a shale damage casing, the test device for simulating the shale damage casing comprises a sample assembly, the sample assembly comprises a first shale sample and a second shale sample, the first shale sample is connected with the second shale sample, a first mounting groove is formed in the first shale sample, a second mounting groove is formed in the second shale sample, and the first mounting groove and the second mounting groove are correspondingly arranged to define a mounting hole; the sleeve is arranged in the mounting hole; the first loading system is connected with the sample assembly so as to apply an acting force in a first preset direction to the sample assembly; and the second loading system is connected with the sample assembly so as to apply an acting force along a second preset direction to the sample assembly. The test device for simulating the damage of the shale to the casing solves the problem that the casing is easy to damage in the shale gas exploitation process in the prior art.
Description
technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a test device for simulating shale damaged casing and a test method for simulating shale damaged casing. Background technique [0002] During the exploitation of shale gas, shearing casing damage accidents caused by formation slip occur frequently, seriously affecting the exploitation of shale gas. At present, the research on the mechanism of casing damage caused by shale slip mainly adopts the methods of numerical solution and numerical simulation, while there are few methods for studying formation slip shear type casing damage through laboratory tests. The commonly used experimental methods are as follows: one is to use high-strength expansion agent to simulate the prevention of formation stress shear casing; the second is to use the abnormal state similarity theory to solve the problem of limited model size in model tests; in addition, Others conduct direct s...
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IPC IPC(8): G01N3/24G01N3/12
Inventor 王向阳乔磊袁光杰杨恒林王开龙何爱国林盛杰刘奕杉杨松杜卫强郑李王元
Owner BC P INC CHINA NAT PETROLEUM CORP