沙帐断褶带巴山组火山岩储层特征及影响因素

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Volcanic Reservoir Characteristics and Influencing Factors of Carboniferous Bashan Formation in Shazhang Fault-fold Belt， Eastern Junggar Basin

MAIMAITIYILIPahading1*，WEI Bo2 ，LIXin1，TIANJijun1，ZHANG Zizhao1

1.School ofGeologyand MiningEngineering，Xinjiang University，Urumqi，Xinjiang 83oo47，China CoalfieldGeologicalExplorationam，CalfeldGlogureafinngUgurutonoousgio，UumqiXinng

Abstract：The volcanicrocksof theCarboniferous BashanFormationarewidelydevelopedintheShazhang fault-foldbelt in easternJungaerBasinandtheexplorationanddevelopmentofthecarboniferousvolcanicgasfieldintheadjacent WucaiwanSag indicates thatthecarboniferousvolcanicocks inthestudyareaalsohavethepotentialofreservoirformation.Toprovidesupport forvolcanicoilandgasexplorationinthisarea，thispapercomprehensivelystudies techaracteristicsofvolcanicreseroirsand theirinfluencingfactorsbyusingdrlling，rocksample，themicroscopicchipimaginglogging，analysisdata.Theresultsshow that：1）volcanicrock reservoir lithologyofBashan Formation is mainlycomposedofvolcanic lava，fused volcanic breccia， pyroclasticrock，volcanic-sedimentaryrockandsub-volcanicrock，whichcanbeidentifiedaseruptivefacies，overflowfacies， volcanic-sedimentary facies;2）themainreservoirspace is primaryreservoir space（primarypores）and secondaryreservoir space （secondary pores and fractures），and there are four types of reservoir space combination：pore + dissolved pores in almond body + fracture，pore + dissolution pore，dissolution pore + fracture and fracture;3） the volcanic rock is of medium-low porosityand mediumpermeabilityreservoirwith pooroverallphysical propertyandheteroqeneity;4）thedevelopmentof favorablevolcanicreservoir inBashanFormation is mainlycontroledbylithologyandlithofacies，weatheringandleaching， and tectonic fragmentation.

Keywords：volcanicrockreservoir;reservoircharacteristics;influencingfactors;Shazhangfault-foldbelt;BashanFormation

网络出版地址：http：//link.cnki.net/urlid/51.1718.TE.20241202.1625.002

引言

随着能源供求关系的日益紧张和石油地质工程技术不断发展，火山岩油气藏作为非常规油气勘探的新兴领域，受到学者越来越多的关注[1-2]。（剩余17302字）