Abstract
Abstract Since 1980, the oil production of Daqing oilfield has been at high water - cut stage. The rate of oil production has naturally decreased. Research was undertaken to maintain and enhance fracturing effects on oil production, including strengthening the preparation for fracturing and management after fracturing. Properly selecting the wells and zones for fracturing is important. Pre-treatment of injection wells and restoration of reservoir pressure can improve the results of fracture treatments in producing wells. Fracturing techniques were also developed for multiple thin intervals. This paper uses examples from the Lamadian Oilfield of Daqing.
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