Abstract: During the rolling exploration in the Huanxiling Oilfield, on the basis of the formation mechanism and fine description of the low-resistivity reservoir, by integrating geology, logging, and core information, and fully using information of oil wells, testing and oil extraction is conducted by selecting suspicious layers of typical wells. Favorable development results are obtained, and the breakthrough of òfinding oil in the wateró in lowresistivity reservoir is fulfilled. Substantial oil and gas reserves are discovered as well. All this accumulates substantial valuable experience for the identification of low resistivity reservoirs.

Key words: Liaohe Basin, Huanxiling Oilfield, low-resistivity reservoir, fine reservoir description, testing and oil extraction, plate of electric characteristics