晋城矿区西部地质构造与煤层气井网布置关系-倪小明

322Vol.32No.220072JOURNALOFCHINACOALSOCIETYFeb.2007:0253-9993(2007)02-0146-041,1,2,2(11(),100083;21,100011):,,,,,,,.:;;;:P54;P618111:A:2006-11-08::(20060290003);:(1979-),,,.Tel:[phone],E-mail:nxm1979@1261comTherelationsbetweengeologicalstructureinthewesternJinchengdiggingsandcoal2bedmethanewellsarrangementNIXiao2ming1,WANGYan2bin1,JIEMing2xun2,WUJian2guang2(11StateKeyLab.ofCoalResourcesandSafeMining,ChinaUniversityofMiningandTechnology(Beijing),Beijing100083,China;21ChinaUnitedCoal2bedMethane,Beijing100011,China)Abstract:Atpresent,inQinshuibasin,coal2bedmethanewellsnetworksarrangementmainlyusedbyequidistantdiamondlayout,thismethodhasnotconsideredtheinfluencesbetweengeologicalcharacterandcontrollingareaofcoal2bedmethanewells.Inlightofthis,chosedtheareathatitsgroundwateractivitieswasweak,itwasfavoredtotheenrichmentandpreservationofcoal2bedmethane,itsinfluencewassmalltoexplorecoal2bedmethane,thisarealiveinthewesternJinchengdiggingsinthesouthernQinshuibasin.Indifferentgeologicalpositions,discussedsystemicallythedifferencesoftimeaboutgasproduction,waterproductionandcumulativegasproductionofcoal2bedmethanewellsandthereasonsforthedisparity,andpointedoutthattherelationsbetweenthegeologicalstruc2tureandwellsarrangement.Keywords:geologicstructure;coal2bedmethane;wellsdistances;gasproduction,,,,,,.,.[13],,.,,,.2:1,,,-.,,NNE,,.315.3(6m)(266600m).3,31[4].13[4]Fig11ThetrendaboutNo13floorelevation2211,,,,,,,,,,,,,,,,.,,.2(a),,10d.2Fig12Thecomparisonofinitialgasproductiontimeofsomepartsofcoal2bedmethanewellsindifferenttectonicpositioninthewesternJinchengdiggings212,,,,,,,,,,,,.2(b),,15d.213,,,.,,,,,,,.,(2(c)).214,,,,.,741200732,,,,.3[58]311,.,,,,,,,,,,,.,,.3(a),3m3/d.310Fig13Thecomparisonofaveragewaterproductionintenmonthsofsomepartsofcoal2bedmethanecollectingwellsindifferenttectonicpositioninthewesternJinchengdiggings312,.,,,,,,.,,,,;.3(b),3m3/d.313,.,,,,,,.,,,,.3(c),3m3/d,20m3/d.314,,,,.,.,,,.4,1[9].5,8412:1Table1Thepeaktimedifferentofgasproductionaboutconventionalmethodssuchasequidistancewellsarrangementindifferentgeologicalpositions,,,,,,,,,,,,2Table2Themethodsofthecoal2bedmethanewellsnetworkarrangementandadvantagesaccordingtogeologicalcharacters,,,,,,..2.6:;..,.,,,,.,!:[1],.[J].,1994,13(4):2731.[2],,,.[J].,2000,24(3):2325.[3],,.[J].,1993,17(6):5055.[4],,,.[M].:,1996.76.[5]McKeeCR,BumbAC,KoeningRA.Stress2dependentpermerabilityandporosityofcoal[A].TheProceedingsofthe1987Coal2bedMethaneSymposium[C].Tuscaloosa:Alabamain,US,1987.[6]BarkerCE,PawlewiczMT.Thecorrelationofvitrinitereflectancewithmaximumtemperatureinorganicmatter[A].Bunte2barthG,StegenaL,eds.Palaeogeothermics,lecturenotesinearthsciences,V15[C].Berlin:SpringerVerlag,1986.79293.[7],,.[M].:,1998.[8],.-[M].:,1999.[9],,,.[J].,2005(5):5457.941