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中高渗注水开发油田后期提高采收率技术研究_赵文森

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中高 注水 开发 油田 后期 提高 收率 技术研究 赵文森
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ÏÚ1ÿ£7?²Bªù4ڐlq/Œùî*uÓæ=Ø\ñª@Âd2,(“²Ÿ¹É#7?ýñSE×ÄLi”2F²Ðý)K1渗透率较好的注水油田到开发中后期,注采平面矛盾日趋突出,含水严重,但油藏采出程度却很低。通过室内实验研究结果表明:对中高渗高注水开发油田在开发后期进行弱凝胶调剖,可以改善吸水剖面并提高采收率,但提高采收率幅度有限。在调剖后,注入表面活性剂体系、聚表二元体系,均能在弱凝胶调剖的基础上再提高采收率达十个百分点。两体系相比之下,表面活性剂体系,能更明显地提高非均质性突出的注水油田的采收率。1oM非均质性弱凝胶开发后期提高采收率òv²B7-ù,v¨ÿ£7?。ÿ£7?¥VñÏ,®¿vÿÆ£¥—,P²Ÿ+Y^Íݹ{¥d(ÉŸFÐ7?开发试采o#8,7®1iuv。Œªã¡@ÀØé{¥ÐhªížÚ1i{,»C_@,Pªã¥o#8”v‚üA。V4ڐlqwL(m2)ÏV[A:£zlqÚr73%¥fƒ/,Ð`‹¥ÿÆ,¿ÿÿÆ@1,?4ڐlqr16ñäsÄP·,¿Ú1Úc£²B4ڐlq“µrT;Œ^εBç¥.ïV‹!。m2Ð`‹ØzАlq1"wL2.2VëŸ4ÉB„4ÚÐ`‹Øzªlq/ŒùîÐ5Ð`‹Üð˜¥'†Øé,ržz¥rT,ŒVm2ÏV[A,¿®1iuv,εv¥?ZbW,ÿµ10%P·¥lqV?!。¹ÉB„4ڐlq,²†Ð`‹ØéØ,¨Ð`‹Øéª,9ÿ?4Úz²rq¥VëŸ4„”vo#8¥†þÖ。Ð`‹¥ÿÆ,Ú1i{,hªÃVëŸ4¥P>,PVëŸ4°¤¡@ÉÆ:Ų¥®1i{,YV†®²£¸ëfï,ÉB„4ڐlq。¹]¸ªãy¹|VëŸ4d,ÿƪVëŸ4,ÿƆþ¹Ö。†þ¹Ö,‚ǵ]¸VëŸ4$yd¥T¨,ε†þz¥ÿr,'”vÿÆAo#8,¿ÿ@8@1,4ڐlq¥ÿr。¨|Ö0VëŸ4(SDB)„9T?ïÐ7?2006M3ñ8¥1@?p,9F²£M]@u,V7†®Íݹ{¥1@Eï,9Fð²¥@î?ï;]HADD-TS8"¥FÆ,4ÚýTA¥R†Î,h¹ª¥2Q],V7üAVC“z¥³rT。3²‚ЪM(1)]HInVëŸ48"¥¯¥ÄÄ?®¸ëfï¥+Ÿ,ªÊ¥³48",VP1iqå]q¤žvñ¥†®,µr¥4Ú²M1iq¥=q,dУír‹„Iùr‹/ª]。(2)ªÊ¥9â3£8",µr¥9F¹ª¥?„»û¹ª¥@8Ñ,9,2000,93·ÝI÷.VëŸ4¥ÿ?[H].Ø:ÄÐý†,¦ÏS.£zªù¨²ªª=Ð`‹Øé•YyÍs.viF²¹ÉÐ7?,2000,19(4):17~194ÙÔ!,>5L.ía=í¯†8"z²kùî.F²Gý\,2004,26(5):73~765ÛÎŒ,Ržö.VëŸ4/†þ¥z²ðØ.S“²Býñ,1995,3:9~116ñ¾Û,±Ð+.VëŸ4—†þz¯†Ö¥ªÄ!9.Š2F²,2000,1:22~25(là°ù2005-12-15IÛS‡)58开发试采?–>Ð7?2006M3ñconsistingofoillayerswheretheoillayersandthegaslayersareinter-beddedvertically.Somegasisexploitedalongwithoilto-gether.Underthesituationofemphasizingoilmuchmorethangasinthepast,thestudyontheinterpretationmethodofgaslayerswasusuallyomitted,whichmadethecoincidencerateofgaslayerinterpretationlow.Aimingatthecurrentstatus,theloggingseriesusedinBeidagangoilfieldisinvestigated.Since1964,3differentloggingserieshavebeenapplied,butthelater-alloggingseriesandtheacousticinductionloggingseriespre-vai.lThedigitalcontrolloggingseriesaccountsforalittlepro-portiononly.So,theapplicationofnewtechniquesandmethodsforlogginginterpretationislimited.However,accordingtotheconcretesituationofBeidagangoilfieldandtheloggingresponsefeaturesoftheshallowgaslayers,andmakinggooduseoftheolddata,therecognitionmethodofshallowgaslayersbyvariousloggingseriesisdeveloped.KEYWORDS:loggingseries,gasinshallowformations,acousticmoveout,neutrongamma,recognitionofgaslayersAPPLICATIONOFADVANCEDTECH-NIQUESTODEVELOPLOW-PERMEA-BILITYGASRESERVOIRSOFPEN-GLAIZHENGGROUPINBAIMAMIAOAREA1)YangHongzhi1,ZhangZhixin2,ChenYoulian1,XuWei1andLiHe1(1.ResearchInstituteofExplorationandDevelopment,PetroChinaSouthwestOilGasFieldCompany.;2.TechnicalTrainingCenter,DaqingOilfieldLimitedCompany).NATURALGASEXPLORA-TIONDEVELOPMENTv.29,no.1,pp.31~34,3/25/2006ABSTRACT:ItisprovedbythedevelopmentofPen-glaizhengGroupgasreservoirsinBaimamiaoareathefinereser-voirdescriptionandcarefullyselectinghorizonsandwellsitestodevelopisthegroundofgasreservoirdevelopment,andthenewtechniquesandthecorrectpolicyofdevelopingtechnologyistheguaranteeoftheeffectivedevelopmentofgasreservoirs.Theprincipleofsequencestratigraphywithhighresolutionisappliedtoestablishtheisochronousstratigraphicframeofthereservoir.Thelogging,testingandseismiccorrelativedataareusedtode-scribeandcalibratethedistributionofsandbodiesandthedepo-sitionmicrofaciesofthereservoir,andestablishthemodelofac-cumulativezoneswithhighproduction.Themethodsofmultiplewellsconstraintandextrapolationwellbywellareusedtoopti-mizethehorizonsandthewellsitestodevelop.Thetechniquesofcomminglingproduction,horizontalwell,clusterwell,highangledeviatedhole,sandfracturingetc.areappliedtoimprovetheproductivityofasinglewel.lThemeasuresofunder-bal-anceddrilling,airdrilling,jointperforatingandfracturingoper-ationareutilizedtoreducethepollutionofreservoirandguaran-teetheefficientdevelopmentoflowpermeabilitygasreservoirs.KEYWORDS:gasreservoir,lowpermeabilityreservoir,sequencestratigraphy,reservoirdescription,developmentresultSTUDYONEORINHIGHANDMIDDLEPERMEABILITYWATERFLOODINGATPRODUCTIONTAILZhaoWenshen,YeZhongbin,WuYou,ShiLeitingandLaiNanjun(StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,SouthwestPetrole-umInstitute).NATURALGASEXPLORATIONDE-VELOPMENT.v.29,no.1,pp.35~36,3/25/2006ABSTRACT:Astheoilfieldwithgoodpermeabilitydevel-opedintothemiddle-latterperiod,acontradictionofinjection-productionbecomeseriousandtherecoveryofreservoirisverylow.Byexperiment,itindicatesthatmakingweakgel’sprofilemodificationforhighpermeabilityandhighwatercutreservoircanimprovethewaterinjectionprofileandenhancetheoilre-covery,buttheamplitudeofenhancingtheoilrecoveryislimit-ed.Forthepolymer/surfactantslug,polymerandsurfactantdu-alsystemsareinjectedseparately,oilrecoverymaybeenhancedby10percentafterthewaterinjection.Comparatively,thepoly-mer/surfactantslugsystemcanobviouslyenhancethehighheter-ogeneousreservoirrecovery.KEYWORDS:heterogeneous,weakgel,enhancingoilrecovery,productiontailANALYSISONREASONSOFTUBINGPLUGGINGFORGASWELLS1)HuDefeng(DevelopmentTechnologyInstituteofChongqingGasField,PetroChinaSouthwestOilGasFieldCompany).NATURALGASEXPLORATIONDE-VELOPMENT.v.29,no.1,pp.37~42,3/25/2006ABSTRACT:Tubingistheinevitablepasswhengasex-ploiting.Iftubingplugginghappensduringgasexploitingorwellwork-over,itwillinfluencenotonlythenormalproductionofthegaswellbutalsothejobofthewellwork-over.According3NATURALGASEXPLORATIONDEVELOPMENTM/ar,2006
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