Downhole rock dynamic elasticity parameter fast test system and test method
A dynamic elasticity, testing system technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, instruments, analyzed materials, etc., can solve problems such as low accuracy, low test efficiency, and cumbersome procedures, and achieve high accuracy and test speed. Fast and reliable results
Pending Publication Date: 2019-12-24
CCTEG CHINA COAL RES INST
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Problems solved by technology
[0003] In order to solve the current technical problems of low test efficiency, cumbersome procedures, and low accuracy of rock dynamic elastic parameters, the present invention provides a fast test system and test method for downhole rock dynamic elastic parameters, which can directly complete the fast test for downhole rock dynamic elastic parameters , high accuracy, high reliability, simple operation, high efficiency
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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0039] Such as Figure 1-3 As shown, the rapid testing system for dynamic elastic parameters of downhole rocks includes an acoustic wave tester 1 and a device stabilizer 2. The acoustic wave tester 1 includes a wave velocity acquisition instrument 101, a probe connection line 102, a transverse and longitudinal wave excitation probe 103, a transverse and longitudinal wave Receiving probe 104, software analysis system, the device stabilizer 2 includes exciting probe holding and wrapping device 201, receiving probe holding and wrapping device 202, probe self-tightening device 203, directional slide rail 204, front directional support slider 205, rear directional support Slider 206, length test ruler 207, device stable base 208; described tr...
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The invention discloses a downhole rock dynamic elasticity parameter fast test system and a test method. The test system comprises a sound wave tester and a device stabilizer. The sound wave tester comprises a sound wave acquisition instrument, a probe connection line, a transverse and longitudinal waves excitation probe, transverse and longitudinal waves receiving probe and a software analysis system; and the stabilizer comprises an excitation probe holding and packaging device, a receiving probe holding and packaging device, a probe self-tightening device, a directed sliding rail, a front directed support sliding block, a rear directed support sliding block, a length measuring ruler and a device stabilizing pedestal. The system and the method provided by the invention can directly complete downhole rock material dynamic elasticity parameter fast test, the sound wave tester and the device stabilizer form an integral system, and the device stabilizer is provided with the length measuring ruler, measurement of elastic wave propagation distance is completed while the elastic waves propagate in a rock sample, thus, test speed is fast, a sound wave instrument probe is guaranteed to bealways at a coaxial position, so, a test result is highly accurate and reliable.
Description
technical field [0001] The invention relates to a testing system for dynamic elastic parameters of rock, including dynamic elastic modulus and dynamic Poisson's ratio, and is especially suitable for rapid measurement of dynamic elastic parameters of underground rock materials. Background technique [0002] Rock dynamic elastic parameters include dynamic elastic modulus and dynamic Poisson's ratio, which are one of the important mechanical properties of rock materials and important data for evaluating rock properties in practical engineering. The measurement of rock dynamic elastic parameters mainly relies on shock compression experiment and elastic wave experiment. The impact fracturing experiment method requires triaxial compression experiments on rocks in all directions, and the stress-strain changes are obtained through triaxial compression experiments, so as to obtain the elastic parameters of rocks in all directions. This experimental method will cause irreversible dama...
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IPC IPC(8): G01N29/07
CPCG01N29/07G01N2291/011G01N2291/023
Inventor 蒋军军邓志刚张宁博赵善坤苏振国孙中学柴海涛莫云龙张广辉马斌文毕慧杰王健达
Owner CCTEG CHINA COAL RES INST