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1、2010年6月大慶石油地質(zhì)與開發(fā)June,2010第29卷第3期PetroleumGeologyandOilfieldDevelopmentinDaqingVoI.29No.3DoI:10.3969/J.ISSN.1000.3754.2010.03.010文15塊沙三上特高含水油藏剩余油分布宋子齊龐振宇李偉峰李文芳(西安石油大學(xué),陜西西安710065)摘要:針對文15塊沙三上特高含水期油藏精細(xì)描述及調(diào)整挖潛工作,分析了油藏剩余油分布特點,利用統(tǒng)計分析地層混合液電阻率計算分析剩余油儲量豐度平面分布,利用吸水剖面動用狀況分析剩余油的剖面分布規(guī)律。闡述了該區(qū)剩余油分布主要受斷裂、構(gòu)造高、構(gòu)造復(fù)雜帶
2、與層內(nèi)河道邊緣、相變帶二、三類儲層及其韻律性控制,以及層問干擾、注采不完善及水驅(qū)損失影響。指出該區(qū)特高含水油層動用程度高,剩余油分布總體比較零散,平面上主要以豆粒狀、豆莢狀或團塊狀、條帶狀分布富集;縱向上集中分布在部分動用相對較低主力油層中,油層動用不充分,呈現(xiàn)嚴(yán)重的非均質(zhì)特征。關(guān)鍵詞:剩余油儲量豐度;吸水動用;構(gòu)造相變帶;層間干擾;注采不完善;挖潛方向中圖分類號:TE321文獻(xiàn)標(biāo)識碼:B文章編號: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基金項目:國家自然科學(xué)基金項目(No.40572082)“油藏模擬混合軟計算系統(tǒng)理論與實用方法研究”資助。作者簡介:宋子齊,男,