山西沁水盆地中_南部煤储层渗透率影响因素

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2001)0120045208:2000201224:(:49772131):(1965),,,,:,,,,(,221008):,4,,,,:;;;:P618111:A0,,,1114511310,35303645,15000km2(1)10143m,3#,15#,2001500m,1191012m3[1],(R0,max%)113%410%,,23,,?,1,0101517110-3m2,,210-3m2(1):01110-3m250%,01111010-3m225%,11021010-3m220%;7120013JOURNALOFGEOMECHANICSVol17No11Mar.2001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:1;2,,,(1),110-3m2,,,01111010-3m2,,01110-3m2,,11010-3m22211,[2],,::SN;:NWSE;:NWWSEE;:NEESWW,,,,,SNEW,EW;NWSENE,NE,NE,NE;NWWSEE,NEE642001,,11,19991©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[3],,,21211,,,[4],(facecleat),(bullcleat),,()4(2)741:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,,1m200Pm,,,()200500Pm(),,,,N40EN45W,N50WN80W,N40EN50W;N25E,N20W70,20160Pm,,,;,,,,8#9#,,,21212,,,,,;,;S1,,3311,(v),,(HeimA.1912),:v=ni=1riHi€rH(1),v;i;€r;H(GennikAG.1926),:hv=(v-P)1-(v-P)(2)842001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(H)(h)(h1)(h)(H)(H1):h1=HH1=h(3):Hmax=hv+H+H1hmix=hv+h+h1(4),217MPaP100m,214MPaP100m,118MPaP100m,510m,-510m,1,2(),3;-510m,1,2,3,[5],,,()(E)()(H)[6]:Wx=(1-2)HE1-x2L2(5),WxPmm;LPmm;xPmm,[7],:K=(1.013109)W3x12S(6),KP10-3m2;SPmm;WxPmm1,:15211652713m,3195MPa,6061660916m,6107MPa,13171517MPa,719914MPa,1,2,3,,,213,13:N4050E,13mm;N4050W,17mm,8mm[8],2148104MPa,013;4188104MPa,0138(5)4171m3167m,(6)016810-3m2014710-3m2(3),0151m-3(1)(2)(3)(4)911MPa,-018MPa()941:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2),800m,01110-3m2,,,,300800m,11010-3m2,401110-3m2,,,,,2Fig12Correlationbetweenburieddepthandthewell2testingpermeabilityofthemaincoalreservoirs313,3#3131119MPa,8145MPa,15#81313MPa,10159MPa,3,,,,10MPa,01110-3m24,,,,,5MPa,01110-3m2(4)052001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1),,,,,,01111010-3m2,,01110-3m2,151:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,,1[M].:11998:5558.[2],,1[M].:11997:2447.[3],,1[J].,1999,20():623627.[4]CloseJC.Naturalfractureincoal[J].In:LawBE,RiceDD,ed.AAPG,Hydrocarbonsfromcoal,StudiesinGeology#38,1993:119132.[5],,,1[J].11999,45(6):576583.[6],1[M].:,19901[7]LevineJR.Modelstudyoftheinfluenceofmatrixshrinkageonabsolutepermeabilityofcoalbedreservoirs[J].GeologicalSocietyPublication.1996,(199):197212.[8]1[D]11:,19871ANANALYSISONTHEPRINCIPALCONTROLFACTOROFCOALRESERVOIRPERMEABILITYINCENTRALANDSOUTHERNQINSHUIBASIN,SHANXIFUXue2hai,QINYong,LIGui2zhong,LITian2zhong,HUChao(CollegeofMineralResourceandEnvironmentSciences,CUMT,Xuzhou221008,China)Abstract:Accordingtomeasurementandstatisticsofdowncoalminemacrofractureswereclassifiedintofourranks,andsystemicallydescribedandmeasuredunderscanelectronmicroscope.Basedontheanalys2isofrelationshipbetweenpermeabilityandgroundstressPburieddepth,fractures,reservoirpressure,hydro2geologicalcondition,authorspointoutthatgroundstressPburieddepthisprincipal2controlfactor.Underthesameburieddepthotherfactorsplaymoreimportantroleonpermeability.Keywords:coalreservoir;groundstress;permeability;fracture252001