搜索
15220083(();)EarthScienceFrontiers(ChinaUniversityofGeosciences,Beijing;PekingUniversity)Vol.15No.2Mar.2008:2007-11-20;:2007-12-17:(NCET20420345);:(1962),,,,Tel:045926503332;E2mail:lushuangfang@dqpi1edu1cn.,.,2007.,,,,,,,163318LuShuangfang,LiuShaojun,ShenJianian,XueHaitao,XuQingxia,HuHuiting,WangMinDaqingPetroleumInstitute,Daqing163318,ChinaLuShuangfang,LiuShaojun,ShenJianian,etal.Applicationofelementbalancemethodtoevaluatingthequantityandthepe2riodofbiogasgeneration.EarthScienceFrontiers,2008,15(2):1952199Abstract:Theperiodofbiogasgenerationplaysaveryimportantroleinitsaccumulation.Nowthereisnotacredibleandeffectivemethodtoappraiseit.Thegenerationofbiogasisamassbalanceprocessproceedingamongorganicelementsregardlessofthegenerationmechanismofbiogas.Wehaveexploredandestablishedanelementbalancemethodtoappraisebiogasinthispaper.Usingtheabundantanalyzeddata,weappliedthismethodtothestudyofbiogasintheSongliaoBasin.Resultsshowthatthebiogaswasgeneratedprobablyatthedepthshallowerthan800meters.Thebiogasquantitygeneratedfromthesourcerockinthisareaisabout285101012cubicmeters.ThemainperiodofbiogasgenerationoccursbeforetheendofthedepositionoftheNenjiangformation.Keywords:biogas;quantityofbiogasgeneration;periodofbiogasgeneration;elementbalancemethod:,,,,,,(),800m;285101012m3;:;;;:P618113:A:1005-2321(2008)02-0195-05Rice[1],19812114%,2619m3,2005173m31515%[2],,1/4,11013m3,[127][6210],196,,,/(EarthScienceFrontiers)2008,15(2),,,2006,284319108m3,38629108m37136%,(1515%)1/2,,,,[11213,15]3:(1),,,10m100m1000m,,,()(2)[11213,16218],(())??(3)??13C113CCO2,,?,,,,,1,,CHO,CHO(1954)[19],,,,,,[20221],,,,:(1);(2)CHO,CH4CO2H2O,:CHxOy=a1CHx1Oy1+a2CH4+a3CO2+a4H2O(1),1,H/CO/Cxy,H/CO/Cx1y14CHO:1=a1+a2+a3(2)x=x1a1+4a2+2a4(3)y=y1a1+2a3+a4(4)a4/a3=1(5)ai0i=1,2,3,4(6)(6),11[19]xyx1y1,(2)(5),a1a2a3a4,(R)(V):R=16a212+x+16y(7)V=2214R161000(8),CO2,.,.,2007.,,,/(EarthScienceFrontiers)2008,15(2)1972,xyx1y1,,x1y1,,,H/CO/C,,,,H/CO/C,,VanKrevelen,,IIIIII,H/CO/C1II,,,,H/CO/C1IIH/CO/CFig11RelationshipbetweentheH/C,O/CoftypeIIorganicmatterandthedepthCH4CO2H/CO/C,(2),H/CO/C(x1y1),0,H/CO/Cxy,,50mH/CO/Cxyxyx1y1,()3CH4CO22H/CO/CFig12RelationshipbetweentheH/C,O/CofthethreetypesoforganicmatterandthedepthinSongliaobasina;b;c;d;e;f,,800m,,800m;,400m,1g1011530721585611657mL();1200m(,)14618051051855901089mL198,,,/(EarthScienceFrontiers)2008,15(2)3CH4CO22Fig13RelationshipbetweenthebiogenicmethaneCH4andCO2yieldsofdifferentorganicmatterandthedepthinSongliaobasin1Yieldsarecalculatedbyelementbalancemethod3,,(1)1(1012m3)Table1BiogasgeneratedquantityduringdifferentperiodsinthenorthernpartofSongliaobasin,calculatedbyelementbalancemethod(1012m3)/(1012m3)Q0.64N2t0.590.43N1d0.320.26E3y0.340.36m23.843.532.66m16.986.615.75s4.454.163.65n51.221.161.130.67n44.604.564.483.10n317.1516.8216.6314.16n284.2378.7175.2971.00n185.2675.3273.1572.02y2+36.236.095.395.06y13.993.392.882.86qn2+333.9932.6831.9730.98qn132.2630.9229.2928.56286.10265.01252.27228.41,2861101012m3,,,,4/54,,,,14618110518690109mL/g;800m,285101012m3;;,,28%,59%;,References:[1]RiceD,ClaypoolG.Generationaccumulationandresourcepotentialofbiogenicgas[J].AAPGBull,1981,65(1):5225.[2]ZhangY,LiJ,HuCY.Reservoirformationandresourcepotentialofbiogenic2lowmaturitygasesinChina[J].Petrole2umExplorationandDevelopment,2005,32(4):37241(inChi2nese).[3]SchoellM.Genetic2characterizationofnaturalgases[J].AAPGBulletin,1983,67(12):222522238.[4]WhiticarMJ,FaberE,SchoellM.Biogenicmethaneforma2tioninmarineandfreshwaterenvironments:CO2reductionvs.acetatefermentationisotopeevidence[J].GeochimicaetCosmochimicaActa,1986,50(5):6932709.[5]GeorgeWS,JennieLR.Unconventionalshallowbiogenicgassystems[J].AAPGBulletin,2002,86(11):193921969.[6]DaiJX,ChenJF,ZhongNN,etal.LargescalegasfieldsanditssourceinChina[M].Beijing:SciencePress,2003:73293(inChinese).[7]ZhangSC,ZhaoWZ,LiXQ,etal.Advancesinbiogenicgasstudiesandplaystrategies[J].PetroleumExplorationandDevelopment,2005,32(4):90296(inChinese).[8]LinCM,LiYL,QiBW.Researchstatusandexplorationpotentialofbiogenicgas[J].JournalofPalaeogeography,,,,/(EarthScienceFrontiers)2008,15(2)1992006,8(3):3172330(inChinese).[9]WangX,FengZH,SongLB.CharacteristicsandoriginofbiogasinthenorthSongliaobasin[J].NaturalGasIndustry,2006,26(4):528(inChinese).[10]WangYW,LuSF,HuiRY,etal.Estimationofbiogasre2sourcesinBinbeiareaintheSongliaobasin[J].NaturalGasIndustry,2006,26(7):18221(inChinese).[11]LiMZ,ZhangHN,LiuH,etal.Advancesinsimulatedtestofbiogas[J].Oil&GasGeology,1996,17(2):1172122(inChinese).[12]LiMZ,ZhangHN.Researchontheformationofbiogasreservoir[J].NaturalGasIndustry,1997,17(2):6210(inChi2nese).[13]GuanDS,QiHF,QianYB,etal.Generationandevolu2tionmodelofbiogenicgas[J].ActaPetroleiSinica,1997,18(3):31236(inChinese).[14]GuoZQ,LiML,ZengFY,etal.Distributioncharacteris2ticsandreservoirformationconditionofthebiogenicgas[J].NaturalGasGeoscience,2006,17(3):4072413(inChinese).[15]HuangBJ,XiaoXM.Characteristicsandgeneration2evolu2tionmodelofmarinebiogasintheYinggehaibasin[J].ActaSedimentologicaSinica,2002,20(3):4622468(inChinese).[16]ChenY,DaiJX,QiHF.Onso