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时间:2020-03-28
《文15块沙三上特高含水油藏剩余油分布.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、2010年6月大庆石油地质与开发June,2010第29卷第3期PetroleumGeologyandOilfieldDevelopmentinDaqingVoI.29No.3DoI:10.3969/J.ISSN.1000.3754.2010.03.010文15块沙三上特高含水油藏剩余油分布宋子齐庞振宇李伟峰李文芳(西安石油大学,陕西西安710065)摘要:针对文15块沙三上特高含水期油藏精细描述及调整挖潜工作,分析了油藏剩余油分布特点,利用统计分析地层混合液电阻率计算分析剩余油储量丰度平面分布,利用吸水剖面动用状况分析剩余油的剖面分布规律。阐述了该区剩余油分布主要受断裂、构造高、构造复杂带
2、与层内河道边缘、相变带二、三类储层及其韵律性控制,以及层问干扰、注采不完善及水驱损失影响。指出该区特高含水油层动用程度高,剩余油分布总体比较零散,平面上主要以豆粒状、豆荚状或团块状、条带状分布富集;纵向上集中分布在部分动用相对较低主力油层中,油层动用不充分,呈现严重的非均质特征。关键词:剩余油储量丰度;吸水动用;构造相变带;层间干扰;注采不完善;挖潜方向中图分类号:TE321文献标识码:B文章编号:1000—3754(2010)03-0047-07REMAINEDOILDISTRIBUTIoNOFUPPERS3RESERVoIRWITHEXTRA.HIGHWATERCUTINBLoCKWEN
3、15SONGZi—qi,PANGZhen-yu,LIWei—feng,LIWen—fang(Xi’anPetroleumUniversity,Xi’an710065,China)Abstract:ConsideringthefinedescriptionIadjustmentandtappingpotentialofextra—highwatercutoilreservoirinUpperS3ofBlockWen15,thispaperanalyzesthedistributionfeaturesofremainingoil,calculatesandanalyzestheplanardis
4、tributionofremainingoilabundancethroughthestatisticsandanalysesofblendedliquidresistance,andstudiesthedistributionlawsofremainingoilcrosssectionbyusingwaterabsorptiondevelopedconditions.Theremainingoilinthisregionismainlycontrolledbyfractures,structuralhigh,marginsbetweencomplicatedstructurebeltsan
5、dinterlayerriverchannels,type11and11reservoirswithchangedfaciesandtheirrhythms,andfurthermoreitisinfluencedbyinterlayerinterference,incompleteinjectionandproductionandwaterflooding.Thedevelopmentdegreeofextra—highwatercutoillayersisprettyhigh;ingeneraltheremainingoildistributionisratherscattered,in
6、horizontalitisenrichedintheformsofbeanparticle,beanpod,lumpandbelt;inverticalitismainlydistribu—tedinthekeyoillayerswithlowerandpartialdevelopment.Thisincompletedevelopmentoftheseoillayersposses—sesthecharacteristicofseriousheterogeneity.Keywords:reservesabundanceofremainingoil;waterabsorptionandde
7、velopment;structuralbeltwithchangedfacies;interlayerinterference;incompleteinjectionandproduction;orientationoftappingpotential收稿日期:2008—12—10基金项目:国家自然科学基金项目(No.40572082)“油藏模拟混合软计算系统理论与实用方法研究”资助。作者简介:宋子齐,男,
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