边底水稠油油藏整体堵调技术分析

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1、StudyonTechniqueofProfileControlandWaterShutoffofHeavyOilReservoirwithEdgeandBottomWaterZhangChuanju(Oil＆GasFieldDevelopmentEngineering)DirectedbyProf．LiZhaominAbstractChinahasabundantheavyoilresources，especiallytheseoilreservoirsusuallyhaveedgewaterorbottomwater

2、．Duringtheproductionofsteamstimulation,thiskindofreservoirsarevulnerablefortheinfluenceofwaterinvasionandconingeffects，whichledtotherapidincreaseofwatercutforwholeblockandseriouslynegativeimpactonnormalproduction．Thetechnologyofcontrolwatercutandstabilizeoilprodu

3、ctionforheavyreservoirswitlledge／bottomwaterwilleffectivelyrestrainthewaterinvasion,whichCanhaveapositivesignificantonoilproductionandsubsequentflooding．ThetechnologyofProfileControlandWaterShutoffinoilfieldisresearched．Gelisselectedforhorizontalpluggingagent,who

4、segellingpropertiesandapplicationperformanceisalsoevaluated．Theresultsindicatethatgellingtimewillreduceandgelstrengthwillincreaseasthepolymerconcentrationandcross·linkingagentconcentrationincrease．Thepluggingabilityofgeliswellfordifferentgelformulations．Underthec

5、aseofcertaindegreeshearing，thegellingtimeandgelstrengthdidn’tchangemuch．Gelswillprioraccesstothesandtubemodelwithhigherpermeability．Thegreaterofthepermeabilitydifferences，theaccesspriorityandfluiddiversionwillbebetter．ThesimulationmodelofZheng411blockIsandisbuilt

6、onthebaseofgeologicalparametersofreservoir．Thedevdopmenthistoryoftheblockisfittedandtheresultoftheoriginaldevelopmentwayispredicted．Throughcontrasttheblockingpositionisdeterminedandthenfourdifferentblockingplansisoptimized．Thefurtheroptimizationisconductedafterth

7、ebetterplansareselected．Theoptimizedplanisasfollows：drillingtwoparallelhorizontalwells，5000m’gelagentsinjectedthefirsttimeandsubsequentinjectingcalldecreasedemandoftheproductionofoilfield．Theresultoftheoptimizedplanisfavorableandeconomical，whichcanmakethewatercut

8、ofthewholeblockdeclinesdramaticallyandoilproductionincreases．Keywords：bottom／edgewater,heavyoil，pluggingagent，numericalsimulation,planoptimization目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯