苏里格气田压力监测方法和远程试井技术

:,,1980,,;:(710021):13910761528Email:[e-mail]何丽萍1,2毛美丽3廖红梅3范继武31.2.3..苏里格气田压力监测方法和远程试井技术.天然气工业,2011,31(1):5961.苏里格气田普遍采用井下节流的生产工艺,虽达到了简化气井地面流程节约开采成本的目的,但同时也给气井动态监测和压力测试带来了困难多年来,苏里格气田不断探索适合实际情况的气井压力监测分析方法,从不关井测压技术井筒液面监测技术井口压力折算技术入手,形成了一整套具有苏里格气田特色的压力动态监测方法,并试验成功了基于井口数据采集集气站进行处理分析的远程试井技术和不稳定试井分析技术,实现了压力计不下入井下开展气井测试工作的目标现场应用表明,该套技术基本满足了苏里格气田气井动态分析和生产管理的需求苏里格气田气井压力动态监测试井解释远程传送管理DOI:10.3787/j.issn.10000976.2011.01.0122090,,,,,,,,(),,,,,13200~3500m,1600~1800m,,(),,1.1!!:,,,,[1]:pR=aGp2+bGp+p∀(1)pR;Gp;p∀Gp=0,,0.46MPa[2],,#59#311,,RTA,,0.55MPa,1.2,,,,,,,,,,,,,,1.3,[36]:gL29.28=∃pwspwhTZpdp(2)g;L,m;pws,MPa;pwh,MPa;T,K;Z(2),TZ(TavgZavg),(2):pws=pwhe0.03415gLTavgZavg(3),,,(8~18%),,,,,,(2),(pws,pwh)n(pi-1,pi){i=1,2,3,&,n;p0=pwh,pn=pws},,:∃pwspwhTZpdp=∃pnp0TZpdp=12∋ni=1[(pi-pi-1)(Ii+Ii-1)](4)Ii=(TZ/p)i,i=1,2,3,&,n,,,HallYarboroughLXFGopalDPRDAK5,HallYarborough,1.071%,12,2%,0.3MPa,2,,,,,,11#60#20111:(,;),22,,,,,3,,,200915,,26,51623A1020h,2.46∗104m3/d,,,,,3351623A-3.16,,;,0.39mD,39.7m,40m;0.2426mD,,,,[1].[M].:,1983.[2],.[M].:,2002.[3].[J].,1983,10(3):7177.[4],,,.[J].,2010,30(9):3941.[5].[J].,1989,11(4):6369.[6],.[J].,1990,10(4):5760.(20101110)#61#311NaturalGasIndustry,Vol.31,Issue1,2011Keywords:lowpermeabilityreservoir,horizontalwell,slippage,threholdpressure,stresssensitivity,deliverabilityequation,nonDarcyflowDOI:10.3787/j.issn.10000976.2011.01.011GuoPing,professor,bornin1967,isstudyingforaPh.Ddegree,beingmainlyengagedinoil/gasphase,gasfielddevelopment,reservoirengineering,oilrecoveryrateenhancedbygasinjection.Add:No.8,XinduAvenue,XinduDistrict,Chengdu,Sichuan610500,P.R.ChinaMobile:[phone]Email:[e-mail]hodsandremotetestingtechnologyintheSuligeGasFieldHeLiping1,2,MaoMeili3,LiaoHongmei3,FanJiwu3(1.Xi'anShiyouUniversity,Xi'an,Shaanxi710061,China;2.ResearchInstituteofExplorationandDevelopment,ChangqingOilfieldCompany,PetroChina,Xi'an,Shaanxi710021,China;3.ResearchCenterofSuligeGasField,ChangqingOilfieldCompany,PetroChina,Xi'an,Shaanxi710021,China)NATUR.GASIND.VOLUME31,ISSUE1,pp.5961,1/25/2011.(ISSN10000976;InChinese)Abstract:TheDownholechoketechnologyiswidelyusedintheSuligeGasFieldwiththepurposeofsimplifyingthegroundflowsheetandcuttingdownthecost.Ontheotherhand,thisalsobringsaboutdifficultiesindynamicmonitoringandwelltesting.Thatiswhyforsomanyyearsbettermethodsofgaswellpressuremonitoringandanalysishavebeenkeptexploringadaptableforactualcases.Thesecharacteristicmethodsincludethepressuretestwithoutshutin,liquidlevelmonitoringinthewellbore,andwellheadpressureconversion.Inaddition,successfulfieldtestsforremotewelltestingandtransientwelltestanalysisbasedondataacquisitionfromwellheadandingasgatheringstationhelpachievethewelltestingdirectlyfromwellheadinsteadofdownplacingthepressuregauge.ApplicationinarealcaseshowsthatthissetoftechniquesmeettherequirementsfordynamicanalysisandproductionmanagementintheSuligeGasField.Keywords:SuligeGasField,gaswell,pressure,dynamicmonitoring,welltestinterpretation,remotetransmission,managementDOI:10.3787/j.issn.10000976.2011.01.012HeLiping,engineer,bornin1980,holdsanM.Sc.degree,beingmainlyengagedinresearchofoilandgasexplorationanddevelopment.Add:FengchengsiRd.,WeiyangDistrict,Xi'an,Shaanxi710021,P.R.ChinaMobile:[phone]Email:[e-mail]thecapabilityofliquidremovingfromdifferentproductivitygaswellsLiuJie1,LiaoRuiquan1,ZhaoShengxiao2(1.SchoolofPetroleumEngineering,YangtzeUniversity,Jinzhou,Hubei434023,China;2.QinghaiOilfieldCompany,PetroChina,Dunhuang,Gansu736200,China)NATUR.GASIND.VOLUME31,ISSUE1,pp.6264,1/25/2011.(ISSN10000976;InChinese)Abstract:Liquidloadingisaseriousprobleminthedevelopmentofmaturegasfields.Toavoidliquidloadingingaswells,manyscholarsathomeandabroadhaveconductedtheirstudiesontheminimumunloadinggasflowrateandbuiltaseriesofcorrespondingmathematicalmodels.However,theissuewhetherfluidscanbetakenuptothesurfacegroundwhentheoutputofgaswellsislargerthanthecriticalflowhasnotyetbeendeeplydiscussed.Forthisreason,basedonthemechanicalanalysisofliquidloadingandbyusingthetheoryofmultiphaseflow,startingfromthemomentumequationofmistflowintheverticalpipecolumn,amathematicalmodelforcalculatingthemaximumunloadinggasrateisconstructedandthecorrespondingsolutionisobtainedbyusingVBprograms.Thecalculationresultsandthecorrespondinganalysisshowthatwhentheoutputofgaswellsislargerthantheminimumunloadinggasflowrate,notallthefluidswillbetakenuptothewellhead.Thereisamaximumcriticalunloadinggasflowrate,whichwillincreasewiththedecreaseofthewellheadpressurewhiledecreasewiththeincreaseoftubingdiameter.Therefore,thedataa#113#