基于最小携液流速理论的泡排剂及其注入浓度优选方法-马文海

1,21111(12)以气井最小携液流速理论为基础,选用改进后的特纳携液模型,形成一套泡沫排水采气用泡排剂的优选方法将泡排剂性能参数和气井流体参数输入优选模型后,可计算出气井最小携液流速通过与气井实际流速的比值,即可判断有水气井应用泡排剂是否可行,并优选出相应泡排剂及所需浓度,避免泡沫排水的盲目性照上述研究思路,编制了气井泡排剂优选软件通过对3口气井的泡排剂及加药浓度进行优选,结果与现场应用情况相吻合,表明优选方法可行,可帮助现场达到优选泡排剂及注入浓度的目的气井排水采气泡沫剂流动速度(100m3/d),40%,,(),(),,,,,;,,,,,,,,,111,,,,,,,Tuener111Tuener[1]Tuener,(),vg=44(L-g)g2gCDCD=044vg=664(L-g)2g(1)vg,m/s;L,kg/m3;g,kg/m3;CD,;,N/m;g,m/s2112Tuener马文海,男,1972年1月生,1995年毕业于江汉石油学院;现为大庆油田有限责任公司采油工程研究工程师,北京大学地球与空间学院在读硕士,主要从事天然气开采工艺技术研究E-mai:[e-mail]43282开发试采Tuener,Tuener,Tuener,,04410,(2),:vg=44(L-g)g2gCDCD=10vg=254(L-g)2g(2),,12,(3):V=410-5ZTqscAp(3)V,m/s;qsc,104m3/d;A,m2;P,MPa;T,K;Z13Tuener,,,(1),,,Tuener,12()(),(2),,3:(1)Tuener,,,244开发试采20056(2),(),,,,(3),3,7-1718-221-53,;AB,,,,3112,3,AB,BA,A1m3/dMPam/s18-221500160341-59581730207-171000160232kgABkgmg/Lkgmg/L18-22240072300007230001-5240096400019280007-17320096300016500032(50,2500mg/L),AB,(2),(3)3ABmg/L,mN/mkg/m3m/sABABAB06065606510001000035303532000271023001907000188025340002785227518040001870219600027912281170310018402058000279522751702600184019610000280122901902490189019433,,(3),:(1),035m/s,345282开发试采3035m/s,,(2),,,,,(3)BA,,BA,,4Amg/Lmg/L%18-2230005008331-5400035001257-1730002500167,,,(4)4,,,,,,4(1),,(2),,(3),,,5(1),,,(2),,1..:,19922..,2001;21(5):61~63(2005-03-23)20043,4Girardot,Neiva,Villeta,1%~4%(TOC)Caballos()Monserrate(),Villarrica(),,,,Villeta4,,2005346开发试采20056RaoPeng1,TangGang2,DongChangyin3,SheChaoyi4andPuYongsong5(1.DrillingandProductionInstitute,QinghaiOilfieldCompany;2.ResearchInstituteofExplorationandDevelopment,PetroChinaSouthwestOilandGasfieldCompany;3.PetroleumEngineoringInstitute,PetroleumUniversity(EastChina);4.GasProductionInstitute,PetroChinaSouthwestOilandGasfieldCompany;5.DrillingandProductionInstitute,CNPCSichuanPetroleum).NATURALGASEXPLORATION&DEVELOPMENT.v.28,no.2,pp.32~34,6/25/2005ABSTRACT:QinghaiSebeigasfieldisseverelysanded.Becauseofharddrill-coring,itisdifficulttoobtainsufficientrock-mechanicalparametersbythisexperimentconductingsystematicalandoverallprediction.Throughsuchdataassonicwave,density,andnaturalgammaetcobtainedbywelllogging,theempiricalmethodoffindingsuchrock-mechanicalparametersasPoissonratio,elasticmodulus,cohesionstrength,internal-frictionangleetc.hasbeenstudied,andthesandingandsand-controllingpredictionmodelofno.1Sebeigasfieldwellsestablished.Basedonthepredictionresultstatisticsofsandingindexandcriticalproducingpressuredropofthedevelopingreservoirinno.1Sebeigasfield20wells,thepredictionresultisbasicallycoincidentwiththatofon-siteobservation,thusanapplicablemethodoftheoreticalresearchonsandingprediction,reasonableselectingtheproducingpressuredrop,andoptimizingtheallocationisproposedforSebeigasfield.KEYWORDS:Sebeigasfield,criticalpressure,sanding,predictionPARAMETERDESIGNOFGASRECOVERYBYLIQUIDDRAINAGETECHNIQUEWITHGASLIFTBYGAS-LIFTVALVEFORGASWELLS2)WangHai1,BaoZhiqiang1,LuanYanchun1,GengXinzhong1andYangPeng2(1.GasProducing/SellingFactoryofSinopecZhongyuanOil/gasNewHi-Tech.Ltd;2.WellLoggingCompanyofSinopecZhongyuanPetroleumExplorationBureau).NATURALGASEXPLORATION&DEVELOPMENT.v.28,no.2,pp.35~38,6/25/2005ABSTRACT:Theliquiddrainagebyinducedflowofgaswellswithgasliftbygas-liftvalveisdifferentfromtheoilrecoveryofoilwellswithgasliftbygas-liftvalvebecausetheyhavedifferentflowstatesinthebore-holes.Itisdifficultforinducedflowofgaswellstoachievesuccessifsimplyfollowingthedesignmodeofoilrecoveryofoilwellswithgasliftbygas-liftvalve.Basedontheworkingprincipleofgas-liftvalve,thecharacteristicsandtheaffectingfactorsofgasrecoverybyliquiddrainagetechniquewithgasliftaredescribed.Theparametersofgasrecoverybyliquiddrainagetechniquewithinducedflowbygas-liftvalvearedesigned.Andthecorrespondingprogramismade.Goodresultsofapplicationhavebeenachieved.KEYWORDS:gas-liftvalve,gasrecoverybyliquiddrainage,techniqueparameterMOVABLEWATEREXPERIMENTSOFQIAO-BAIGASRESERVOIRS2)HuangWeigang1,GuoPing1,JiangYiwei2andBiJianxia2(1.StateKeyLab.ofReservoirGeologyandExploitationofSouthwestPetroleumInstitute;2.SinopecZhongyuanOilfieldCompany).NATURALGASEXPLORATION&DEVELOPMENT.v.28,no.2,pp.39~42,6/25/2005ABSTRACT:Tightgasreservoirsusuallyhavehighcontentofirreduciblewater,butsomegaswellsalsoproducewater.Itisdifficulttoexplainthephenomena.Thecentrifugalcapillarypressuremethod,theperformancemethodofgas-drivewater,andthenuclearmagneticresonancemethodareusedtodeterminetheirreduciblewatersaturationofthegasreservoir.Thewellloggingmethodisusedtodeterminetheoriginalwatersaturation.Then,themovablewatersaturationcanbedetermined.AccordingtothepercolationexperimentswiththetypicalcoresacquiredfromQiaokouandBaimiaotightgasreservoirsofZhongyuanOilfield,thewatersaturationofthecoresdecreasesandtheeffectivepermeabilityofgasphaseincreasesgraduallyasthegasflowrateincreases.Therefore,thewatersaturationisnotaconstantforagasreservoirthathasbigoriginalwatersaturation,whichexplainsthereasonwhythegaswellsinthetightgasreservoirsproducewater.KEYWORDS:irreduciblewater,lowpermeablegasreservoir,capillarypressure,fluid,nuclearmagne