Advances in experimental research of induced polarization effect in reservoir rocks
نویسندگان
چکیده
We have studied the IP response of the multiphase porous systems by conducting complex resistivity (CR) frequency domain IP measurements for two different groups of samples: sands and sandstones containing salt water in pores and those whose unsaturated pores are filled with synthetic oil. We have observed the IP behavior in the imaginary parts of the analyzed complex resistivity curves. We have studied statistical aspects of CR measurements in HC-saturated samples using sand-cartridge-oil (SCO) and sandstone-oil (SSO) samples. A comparison of the complex resistivity of SCO and SSO samples with different saltwater pH values demonstrates a known shift of the IP peak to lower frequency with a decrease in pH. We used a GEMTIP model to analyze the IP parameters of the measured responses.
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تاریخ انتشار 2010