Low-porosity measurer
A low-porosity measuring instrument technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve problems such as errors and data errors, and achieve the effects of high accuracy, advanced design, and easy operation
Active Publication Date: 2015-06-17
南通市飞宇石油科技开发有限公司
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Problems solved by technology
[0002] The traditional gas porosity measurement method uses calipers to calculate the total volume of regular rock samples, while the method of measuring the total volume of irregular rock samples mostly uses mercury as a working agent, and there are certain errors in the measured data. The measurement uses a helium porosity meter, and there are certain errors in the data. The pore volume is the difference, and the error is the superposition of the two measurement errors. When measuring large porosity, these errors have negligible influence on the results. , but the error has a particularly large influence on the results at low porosity
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp.
[0017] like figure 1 , 2 As shown, the low porosity measuring instrument of the present invention includes a gas source system, a vacuum system, a rock core chamber system, and a measurement system:
[0018] The gas source system mainly includes a gas cylinder (1), a first regulating valve (2) and a second regulating valve (3), and the gas cylinder (1) is connected with the first regulating valve (2) and the second regulating valve (3) respectively. Pressure valve (3) is connected;
[0019] Described vacuum system comprises vacuum pump (4);
[0020] The described rock core chamber system comprises a rock core chamber lower seat (5) and a rock core chamber upper cover (6), the center of the rock core chamber lower seat (5) is provided with a rock core sleeve (7), and the r...
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The invention provides a low-porosity measurer which comprises an air source system, a vacuum system, a core chamber system and a measurement system, wherein the air source system comprises an air bottle, a first adjustment valve and a second adjustment valve; the air bottle is connected with the first adjustment valve and the second adjustment valve respectively; the vacuum system comprises a vacuum pump; the core chamber system comprises a core chamber lower seat, a core chamber upper cover, a core sleeve and a plastic rubber sleeve; the core sleeve is arranged in the center of the core chamber lower seat; the plastic rubber sleeve is arranged inside the core sleeve; an air nozzle is arranged at one side of the plastic rubber sleeve and is connected with the vacuum pump; and fixing nuts are arranged at the periphery of the core sleeve of the core chamber lower seat and are connected with the core chamber lower seat and the core chamber upper cover. The low-porosity measurer can measure the porosity of various types of rocks, in particular rocks with extremely low porosity; and the low-porosity measurer is advanced in design, high in measurement speed, high in accuracy, high in repetitiveness, wide in measurement range and easy to operate.
Description
technical field [0001] The invention relates to a low porosity measuring instrument, which belongs to the field of porosity testing of rocks with low porosity. Background technique [0002] The traditional gas porosity measurement method uses calipers to calculate the total volume of regular rock samples, while the method of measuring the total volume of irregular rock samples mostly uses mercury as the working agent, and there are certain errors in the measured data. The measurement uses a helium porosity meter, and there are certain errors in the data. The pore volume is the difference, and the error is the superposition of the two measurement errors. When measuring large porosity, these errors have negligible influence on the results , but errors have a particularly large influence on the results at low porosity. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the invention provides a low porosity measuring instrument. [0004] ...
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IPC IPC(8): G01N15/08G01N7/10
Inventor 邰九龙刘思齐李建雷周苏
Owner 南通市飞宇石油科技开发有限公司