公开(公告)号：US11668191B2

公开(公告)日：2023-06-06

申请号：US17394071

申请日：2021-08-04

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Ping Guo ,  Zhouhua Wang ,  Yijian Chen ,  Bowen Sun ,  Chao Dong ,  Yisheng Hu ,  Shuoshi Wang

IPC: E21B49/08 ,  E21B49/00 ,  G01N30/02 ,  G01N33/24 ,  G01N33/28

CPC classification number: E21B49/088 ,  E21B49/005 ,  E21B49/0875 ,  G01N30/02 ,  G01N33/241 ,  G01N33/2823 ,  E21B2200/20 ,  G01N2030/025

Abstract: A device for testing the three-phase saturation of oil, gas and water in a high-temperature and high-pressure planar model includes a displacement pump, a confining pressure pump, a back pressure pump, containers, a planar model system, a data acquisition system, a back pressure valve and an oil-gas separator. The planar model system includes a planar model, an autoclave body, a heating temperature-controlling system, a Y-axis direction stepping motor, a X-axis direction stepping motor and an acoustoelectric detector. A method for testing the three-phase saturation of oil, gas and water by using the device includes calibrating three-phase saturation of oil, gas and water to a rock core, preparing a formation water sample and a crude sample, regaining the original formation conditions of the planar model, simulating the depletion or displacement process of oil reservoirs, performing linear ultrasonic-and-resistivity-scanning test on planar model, determining the three-phase saturation distribution of oil, gas and water.