Laboratory simulation measuring device for Archie formula in geophysical well logging filed

Abstract

The invention discloses a laboratory simulation measuring device for an Archie formula in the geophysical well logging filed. The laboratory simulation measuring device comprises an organic glass plate box, electrode plates, an LCR current emitting-receiving device and an oil-water separation metering device, wherein the organic glass plate box is a hollow cube, an organic glass cover is arranged on the organic glass plate box, six injection valves with the same radius are arranged at the front-view surface of the organic glass plate box, a plate electrode is arranged on each of two side surfaces of the organic glass plate box, and three liquid draining valves are arranged on the rear face of the organic glass plate box; the oil-water separation metering device is in sealing connection with the liquid draining valves through rubber flexible tubes; the LCR current emitting-receiving device is connected with the electrode plates. According to the laboratory simulation measuring device, an important foundation theory of geophysical well logging interpretation is turned into teaching practice, an operation method is simple, and the visualization is strong; meanwhile, the laboratory simulation measuring device can simulate an oil deposit forming process and a water displacing oil process and monitor the flow condition of injected water, the distribution of remaining oil and the change rule of water saturation, meets the requirement of monitoring the change of oil saturation in a displacement process of a large model in real time and can well simulate underground geological conditions.

Description

technical field [0001] The invention belongs to the field of geophysical research, in particular to an Archie formula laboratory simulation measurement device in the field of geophysical logging. Background technique [0002] 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, the simulation device was invented and manufactured. 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 oil and wa...

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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

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