COMPLETE PRODUCTION TECHNOLOGY FOR IMPROVING DEVELOPMENT EFFECTIVENESS OF LIU 70 LOW PERMEABILITY FAULT-BLOCK RESERVOIR

Within the past more than 10 years, Liu 70 fault-block of Dawangzhuang oil field, the typical low permeability reservoir in Jizhong area, has been stimulated for wells and modified for well network time and again to improve development effectiveness. This paper reviews the production techniques applied in the reservoir stimulation in the past 2 years, which include high energy gas fracturing, oil well acidizing using gelled acid, plugging removal and injection stimulation by separate zone acidizing, water control of oil well, surface technology for production and injection, and application of new downhole tools etc., and analyses the application results of each production technology.