Small well-spaced area development adjustment practices and awareness

The small well spacing block was encrypted and adjusted three times from 2009 to 2012, with the injection extraction shortened 250m 106m, proportion of wells accounting for 71.3% water drive, mainly distributed in Area A, B C. current network density area is 90.7 wells/Km2, formation pressure 9.12Mpa, there are more exploited layers vertically, contradiction between within prominent, large differences oil mobilization, resulting a rapid rise content. Through fine geological research, focus on improving use thin poor formations, controlling rate water-bearing restoring energy formation, constantly exploring effective methods “controlling decreasing” during period exceptionally high water-bearing, so as improve development effect achieve purpose stabilizing water.