海上埕岛油田馆上段提液技术政策研究

Technical research on enhanced liquid of the Upper Guantao Formation in offshore Chengdao Oilfield

张巧莹

Zhang Qiaoying

中国石油化工股份有限公司胜利油田分公司地质科学研究院, 山东东营 257015

Geological Scientific Research Institute, SINOPEC Shengli Oilfield Company, Dongying 257015

针对目前胜利油区埕岛油田单井液量低、产油量低的问题展开提高采液量研究。应用油藏工程和数值模拟等方法,研究了该油藏的提液潜力和适合该油藏的提液时机及提液条件。研究结果表明:油藏具备提液的潜力和提液条件,在含水达到70%~80%时提液效果最佳,提液条件是恢复地层压力到原始压力的0.85倍,恢复压力的最佳注采比为1.1,提液最大生产压差为3.5 MPa。矿场应用取得了提液增油的明显效果,对海上同类型油田提高注水开发效果具有积极的指导意义。

Based on the properties of low liquid producing and low oil production in offshore Chengdao Oilfield of Shengli petroliferous province, liquid lifting was researched on.Using the methods of reservoir engineering and numerical simulation, liquid lifting potential, opportunity and qualifications of the reservoir were studied and confirmed.The results show that the reservoir has the potential of liquid lifting, and good lifting effects can be got when water cut is 70%~80%.The precondition of liquid lifting is restoring formation pressure to 0.85 times as much as initial pressure, rate of injection and production is 1.1, and the max production pressure is 3.5 MPa.The practice has provided an effective way for the increasing production of the reservoirs and also provides positive references for improving similar offshore oilfield water flooding development effect.

https://doi.org/10.3969/j.issn.1008-2336.2010.01.063