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1、2016年2月大慶石油地質(zhì)與開發(fā)Feb.,2016PetroleumGeologyandOilfieldDevelopmentinDaqingV01.35No.1第35卷第1期DOI:10.3969/J.ISSN.1000-3754.2016.01.004徐家圍子斷陷氣源斷裂輸導天然氣能力評價周義博(東北石油大學地球科學學院,黑龍江大慶163318)摘要:為了研究氣源斷裂在松遼盆地徐家圍子斷陷火山巖天然氣成藏中的作用,以氣源斷裂輸導天然氣機理及影響因素研究為基礎(chǔ),通過考慮斷裂輸導天然氣能力和源巖供氣條件,建立了一
2、套氣源斷裂輸導天然氣能力綜合定量評價方法,對徐家圍子斷陷火山巖儲層中氣源斷裂輸導天然氣能力進行了綜合定量評價。結(jié)果表明:徐家圍子斷陷火山巖儲層中氣源斷裂在徐深301井附近輸導天然氣能力最強;達深1井以北、肇深5井東南、朝深2井北部和汪深101井一芳深9井以東地區(qū),氣源斷裂輸導天然氣能力相對較強,應(yīng)是天然氣成藏的有利地區(qū),目前這些地區(qū)已發(fā)現(xiàn)了大量營城組火山巖氣藏;朝深2井東北和達深1井西北地區(qū)氣源斷裂輸導天然氣能力強,應(yīng)是徐家圍子斷陷火山巖天然氣下步勘探的有利地區(qū)。關(guān)鍵詞:氣源斷裂;輸導天然氣能力;定量評價;徐家圍
3、子斷陷;火山巖氣藏中圖分類號:TE122.1文獻標識碼:A文章編號:1000—3754(2016)O1-0o19—06EVALUATIoNoFTHEGASTRANSPoRTINGCAPACITYFoRTHESoURCE—RoCKFAULTSINXUJIAWEIZIFAULTDEPRESSIONZH0UYibo(CollegeoftheGeosciences,NortheastPetroleumUniversity,Daqing163318,China)Abstract:Inordertostudytheroles
4、ofthesource—rockfaultsinthegasreservoiraccumulationinthevolcanicrocksofXujiaweiziFaultDepressioninSongliaoBasin,basedontheresearchesonthegastransportingmechanismandinfluencingfactorsofthefaults,asetofcomprehensiveandquantitativeevaluatingmethodsforthesource—r
5、ockgastransportingcapacityareestablishedintheconsiderationoftheaboveabilityandfaulttransportingcapacityandmoreoverthecombinedcomprehensiveandquantitativeevaluationoftheformercapacityisconducted.Theachieve—mentsshowthatthestrongesttransportingcapacityisdiscove
6、rednearbyWellXushen301;therelativestrongerabil-itiesareproveninthenorthtoWellDashen1,thesoutheasttoWellZhaoshen5,thenorthtoWellChaoshen2andtheeasttoWellWangshen101一wellFangshen9,theseregionsareregardedasthefavorableareasforthegasreser—voiraccumulationandupton
7、owalargenumberofvolcanicgasreservoirshasbeenfoundinK1yc;thegastranspor-tingcapacitiesinthenortheasttoWellChaoshen2andthenorthwesttoWellDashen1areprettystronger,SOtheseregionsareconsideredtobethefavorableblocksofthefurtherexplorationofthevolcanicrockgasinthede
8、pression.Keywords:gas-source—rockfault;gastransportingcapacity/ability;quantitativeevaluation;XujiaweiziFaultDe—pression;volcanicgasreservoir收稿日期:2015—09.24改回日期:2015—12—22基金項目:國家自然基金項目“油源