页岩气开发目标区优选体系与评价方法

:(:50874114):,1987,;:(102249)18:13911448657Email:[e-mail]李武广杨胜来().页岩气开发目标区优选体系与评价方法.天然气工业,2011,31(4):5962.中国对页岩气的研究已经起步,但至今尚未建立完善的页岩气目标区优选体系,这制约了我国页岩气大规模工业化开发的步伐在收集大量的页岩气基础资料和借鉴前人的研究成果的基础上,详细分析了页岩储层地质因素对页岩气富集丰度和开发效果的影响,建立了相应的页岩气目标区评价指标体系通过层次分析法确定权重,利用无量纲化指标处理方法对所确定的指标进行标准化处理,采用加权平均模型对目标区进行模糊综合评价最后以中国部分页岩气试验区为例进行了综合评价排序其成果实际应用效果良好,能够有效地指导我国页岩气的勘探开发工作页岩气目标区优选层次分析法综合评价DOI:10.3787/j.issn.10000976.2011.04.0141,,,,(1)[14]1),,1()100~7575~5050~2525~0/108m3km-2/m/mD/MPa1.5752.0%2.0%0.52285%1.5~1.075~502.0%~1.0%2.0%~1.2%0.5~0.222~1585%~60%1.0~0.550~301.0%~0.5%1.2%~0.5%0.2~0.115~1060%~40%0.530~100.5%~0.3%0.5%0.1%1040%/m20002000~15001500~50050059314[5]2),,,,,[6]3),,A:[7]4),,,,,,,[8]5),,,,,,,,,,,,[9]6),,,,,[10]7)8),,,,[11]9),,,,,,,,,,10),,,11)12),()22.1,(1),,,,[9]1,,bijij,bjiji,bijbji,1,2,3,4,5,,:6020114B=b11b12b1nb21b22b2nbn1bn2bnnBmax,B,max=n(n),|E-B|=0,,E;,,wi=nnj=1bij,wi=(w1,w2,,wn),,,,,,,,[12]:0.227,0.165,0.068,0.044,0.139,0.020,0.065,0.038,0.086,0.073,0.046,0.0332.2,,,4:,,;,,;,,,;,[9]2.2.1正指标vij=1uij-minfmaxf-minf0uijmaxfminfuijmaxfuijminf2.2.2负指标vij=0maxf-uijmaxf-minf1uijmaxfminfuijmaxfuijminf2.2.3中值指标vij=1zminfuijzmaxfuij-minfzminf-minfminfuijzmaxfmaxf-uijmaxf-zmaxfzmaxfuijzmaxf0minfuijzmaxf(i=1,2,,m;j=1,2,,m)vij;uij;maxf;minf;zmaxf;zminf[13]2.2.4非定量参数,0~11,0.8,0.6,0.5,0.3[14]mn:R=r11r12r1nr21r22r2nrm1rm2rmmB=WR=(b1,b2,b3,b4),bj=mi=1wirij(j=1,2,,n),,bj[15]3,14(2)[16],,,,,21534810697,2153,2110104m3,5,3000m3/d,3[17]41)61314212345678910/108m3km-22.2~4.03.0~3.81.0~1.31.0~1.50.6~0.720.56~0.60.5~0.60.9~1.30.7~1.00.6~1.1/m0.5~1.61.93~3.011.0~1.30.010.3~0.60.51~1.510.5~1.21.5~1.60.1~0.50.2~0.61.3%~1.2%0.5%~0.4%0.7%~0.5%0.5%~0.9%2.0%~1.6%1.6%~1.4%1.3%~1.2%0.5%~0.4%0.7%~0.5%1.0%~0.9%65%71%80%~98%78%70%45%30%70%~80%32%60%/mD0.50~1.601.93~3.011.00~1.300.010.30~0.600.51~1.510.50~1.201.50~1.600.10~0.500.20~0.60/MPa6176.821102015~1812~141623~2915%9%8%~12%8%~15%10%7%~11%13%8%~18%10%~12%10%~28%8.1258~209~40333650317~3516~46/m600~800300~900400~6001200~1500500~1500450~900600~900500~1200700~9501120~13000.7380.7450.7050.6800.7260.6050.5360.6820.5890.645,,,,,,,,,2),,,3),,,[1]SCOTTL,DANIELM,KENTA,etal.MississippianBarnettShale,FortWorthBasin,NorthCentralTexas:gasshaleplaywithmultitrillioncubicfootpotential[J].AAPGBulletin,2005,89(2):155175.[2],,.[J].,2004,24(7):1518.[3].[J].,2009,19(11):1215.[4]GOZDES,CHHINAHS.Ananalyticalcyclicsteamstimulationmodelforheavyoilreservoirs[C]paper18807MSpresentedattheSPEInternationalOilfieldCorrosionConference,16March1989,Aberdeen,USA.NewYork:SPE,1989.[5]HILLL,ROSSJ,ZHANGE,etal.ModelingofgasgenerationfromtheBarnettShale,FortWorthBasin,Texas[J].AAPGBulletin,2007,91(4):501521.[6],,,.[J].,2010,12(2):103109.[7].[M].:,2006:100150.[8],.[M].:,2006:2570.[9],,,.[J].,2010,25(3):103105.[10].[M].:,2006:1100.[11],,,.[J].,1996,17(2):2934.[12]IHSCambridgeEnergyResearchAssociatesInc.NorthAmericannaturalgaswatch-abravenewworld:shaleproductionredefinesNorthAmericannaturalgaslandscape[R].Cambridge:IHSCERA,2010.[13].[M].:,1988:166180.[14],.[J].,2010,4(2):1114.[15],.[J].,2009,25(3):15.[16],,.[J].,2008,22(3):3339.[17],,,.[J].,2009,29(5):7983.(20110311)6220114KeytechniquesofexperimentalevaluationinthefracturingtreatmentforshalegasreservoirsFuYongqiang,MaFaming,ZengLixin,SheChaoyi,ChenYan(GasProductionEngineeringResearchInstitute,SouthwestOil&GasfieldCompany,PetroChina,Guanghan,Sichuan618300,China)NATUR.GASIND.VOLUME31,ISSUE4,pp.5154,4/25/2011.(ISSN10000976;InChinese)Abstract:Thereisagreatpotentialintheexplorationanddevelopmentofshalegasreservoirs,butduetotheultralowpermeabilityofthematrix,itisnecessarytoapplylargescalehydraulicfracturingtoformthefracturenetworkwhichisthekeytoobtainingacommercialgasflow.Unlikethatforregularlowpermeabilitysandgasreservoirs,thefracturenetworksinthefracturingdesignforashalegaswellwillhighlydependontheparticularlaboratoryevaluationtechniques.Therefore,startingfromtheregularfracturinglaboratoryevaluation,themechanicalpropertieswerecomparedbetweentightsandgasandshalegasreservoirs.Substantiallaboratoryevaluationstudieshavebeenconductedonthefeaturesofshalegasrockbrittleandstresssensitivityofcoresamples.Furthermore,acomparisonstudywasmadeontheresultsofhydraulicfractureheightrecordedbyradioactivetracerlogandmicroseismicmonitoringofafractreatmentprogram.Allthoseaboveunderstandingscanbeusedasreferencefortheexperimentalevaluationofshalegasreservoirsandtheoptimaldesignoffracturenetworkfracturing.Keywords:shalegas,reservoir,stimulation,experimentalevaluation,fracturenetwork,optimaldesign,fracturingfluidDOI:10.3787/j.issn.10000976.2011.04.012FuYongqiang,bornin1975,seniorengineer,ismainlyengagedinoilandgasreservoirstimulationtechnologyresearch.Add:SouthSec.2,ZhongshanAvenue,Guanghan,Sichuan618300,P.R.ChinaTel:[phone]Email:[e-mail]onshalegaswellproductivityGaoShusheng1,2,YuXinghe1,LiuHuaxun2(1.SchoolofEnergyResources,ChinaUniversityofGeosciences,Beijing100083,China;2.InstituteofPorousFlow&FluidMechanics,LangfangBranchofPetroleumExplorati