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试采一厂有着边缘区块零、散、多的特点,目前这些区块主要依靠弹性能量开采,采收率比较低,由于井距大,井网稀,无注水井注水补充地下能量,导致各个零散区块的单井始终处于低能开采状况,同样在部分区块因注水压力高而无法完成地质配注,造成单井投产后能量下降快、产量递减快及单井所在零散区块采出程度和采收率偏低的现象。开展零散区块移动式注水工艺研究配套,实现单井试注、区块注水建站前试注及完善注水井网具有重要意义。
The trial production of a plant has the edge of the block zero, scattered, and more features currently rely mainly on elastic energy recovery of these blocks, the recovery rate is relatively low, due to large well spacing, well thin, non-injection wells to supplement underground water recharge, resulting in Single well in each fragmented block is always in the low-energy exploitation condition. In the same section, because of the high water injection pressure, geological injection can not be completed. As a result, single-well production drops rapidly, output decreases rapidly and fragmented blocks in single well are produced The degree and low recovery of oil recovery phenomenon. It is of great significance to carry out research on mobile filling technology of fragmented blocks, realize single well test injection, test injection before block water injection and perfect water injection well pattern.