Abstract:

The reservoir is a conglomerate reservoir in the second area in Karamay oilfield, Xinjiang. After water injection, the resistivities of formations change severely. Through study on water displacement oil and oil displacement water, it is revealed that there are polykeys of the relation between water-hold saturation and rock resistivity in low salinity water injection formation, and electric parameters of rocks change with salinities. The results provide experimental data for analysis of drowned well and well logging.

Key words: water saturation, water displacement oil, oil injection water, rock electric parameter, conglomerate