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The porosity meter is designed based on the Boyle's law two-chamber method. Gas is input into a reference chamber of known volume under a predetermined base pressure. Then, the gas in the reference chamber diffuses into the sample chamber of known volume containing the rock sample. The equilibrium pressure decreases, from which the volume of rock sample particles can be calculated. Then, the porosity is calculated by subtracting the particle volume from the total volume of the rock sample.
The principle of measuring the permeability of low-permeability rocks using the unsteady-state single-pulse decay method is that the pulse pressure signal in the upstream standard chamber acts on the upstream of the rock sample, and the fluid passes through the rock sample into the downstream standard chamber under the drive of this pulse pressure. The permeability is determined by measuring and recording the change of pressure difference between the upstream and downstream ends of the rock sample over time. In order to make the test results closer to the formation conditions, the instrument simulates the high temperature and high pressure conditions of the formation, so that the measured permeability is closer to the actual field conditions, making the permeability measurement more accurate.
This experimental instrument is designed based on Darcy's law for one-dimensional steady-state seepage. By setting a certain confining pressure and displacement pressure, the equipment automatically determines the steady-state seepage and records the upstream and downstream flow rates and pressures to calculate the core permeability. The equipment has a multi-range gas flow meter that automatically selects the appropriate range to improve measurement accuracy.
High-temperature, high-pressure core flow testing instrument
The high-temperature, high-pressure core flow tester is an intelligent instrument used to measure the physical properties of reservoir rocks. It is mainly used in laboratory settings to automatically measure the flow of fluids in cores.
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Email:clkjxs@cnclkj.com
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Address: No. 8, Weiwu Road, Development Zone, Jingzhou City, Hubei Province
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