Archie formula laboratory simulation measurement method and system thereof

Abstract

The invention belongs to the technical field of geophysical research, and discloses an Archie formula laboratory simulation measurement method and a system thereof, an organic glass plate box is filled with a solution with a certain mineralization degree to simulate formation water, and the resistivity of the water is measured; the quartz sand is slowly poured into the organic glass plate box filled with water, a drain valve is opened, and the water is directly discharged into an oil-water separation metering device through the drain valve; simulation oil is injected into the organic glass plate box through all the injection valves, the drain valve is opened, water is discharged into the oil-water separation metering device through the drain valve, and after oil and water are separated, the oil-water separation metering device is used for metering the volume of the oil and the volume of the water, so that the water saturation and the oil saturation are calculated; and the simulation oil is continuously filled into the organic glass plate box until the water is not displaced. The requirement for monitoring oil saturation change in the displacement process in real time in a large model is met, and the underground geological condition is well simulated.

Description

technical field [0001] The invention belongs to the technical field of geophysical research, and in particular relates to an Archie formula laboratory simulation measurement method and system. Background technique [0002] At present, Archie's formula is an important foundational theory for geophysical logging interpretation. In order to simulate the application of Archie's formula in actual logging interpretation, especially in laboratory teaching, and facilitate students' understanding and practical operation, this simulation was invented and produced. device. In addition, the oilfield water injection development simulation experiment was carried out in the laboratory to observe the flow of injected water in the oil layer under different injection and production methods, the oil displacement efficiency, the distribution of injected water and residual oil, etc. In the past, X-ray CT method and X-ray absorption method were used , NMR method to measure the distribution of oi...

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Problems solved by technology

In addition, the oilfield water injection development simulation experiment was carried out in the laboratory to observe the flow of injected water in the oil layer under different injection and production methods, the oil displacement efficiency, the distribution of injected water and residual oil, etc. In the past, X-ray CT method and X-ray absorption method were used , nuclear magnetic resonance method to measure the distribution of oil and water in small rock cores, but there is no accurate measurement method and instrument for how to monitor the dynamic changes of oil saturation in real time in large models (1m*1m*1m) and in actual formations

[0003] Through the above analysis, the existing problems and defects of the prior art are: in the prior art, there is no accurate measurement method and instrument for how to monitor the dynamic change of oil saturation in real time in the large model and in the actual formation

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