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复电阻率测井技术是非常有应用前景的新技术,但是缺乏定量研究基础,其主要原因是没有高精度实验系统。研制了模拟地层条件下的复电阻率自动测量系统。模拟地层条件下的高温高压复电阻率测量系统由岩心夹持器、驱替系统、温度控制系统、饱和度计量系统、复电阻率测量装置和控制系统等组成。系统能够连续测量驱替条件下的岩心的复电阻率;解决了测量系统的压力精度和稳定性;研制了岩心含水饱和度测量装置,且全部测量和控制由计算机完成。对实际岩心测试结果表明,该实验系统具有较高的复电阻率测量精度和含水饱和度计量精度,满足了实验需要,对于研究含水泥质砂岩的复电阻率具有非常重要的作用,同时该系统还能够用于驱替条件下的电阻率测试。
Complex resistivity logging technology is a promising new technology, but the lack of quantitative research, the main reason is the lack of high-precision experimental system. Developed an automatic measurement system of complex resistivity under simulated formation conditions. The high temperature and high pressure complex resistivity measurement system under simulated formation conditions is composed of core holder, displacement system, temperature control system, saturation measurement system, complex resistivity measurement device and control system. The system can continuously measure the complex resistivity of the core under the condition of displacement, solve the pressure accuracy and stability of the measuring system, and develop a device for measuring the water saturation of the core, and all the measurement and control are completed by the computer. The actual core test results show that the experimental system has high complex resistivity measurement accuracy and water saturation measurement accuracy to meet the experimental needs for studying the resistivity of cement-bearing sandstone complex has a very important role, while the system It can also be used for resistivity testing under flooding conditions.