国内外页岩气研究进展及山东省页岩气资源潜力

摘要

Atpresent,contradictionsbetweensupplyanddemandofcurrentinternationalenergyhasbecom-ingmoreandmoreoutstanding.Energyisincreasinglybecomingthefocusintheworld,andexploration anddevelopmentofshalegasresourceshasbeenpaidmoreattention.Shalegasresourcesareveryrich, theyaremainlydistributedinNorthAmerica,CentralAsia,China,LatinAmerica,theMiddleEastand NorthAfrica,andtheformerSovietUnion.Inrecentyears,accompanyingwiththedevelopmentofmin-ingandusetechnologies,explorationofshalegasresourceshavebeencarriedoutintheAmerica,Europe, Asiancountries.ShalegasresourcesareveryrichinChina.Regionalexplorationresearchhasbeencarried outstepbystep,andhasachievedgoodresults.Buttheoverallresearchandexplorationofshalegasis stillinstartingstage,andhavenotfoundtheactualhalegasreservoirs.Thereisstillabiggapoftechnol-ogydevelopmentbetweenChinaandabroad.Combiningwithspecificcharacteristicsofdifferenttypesof organic-bearingmudshaleanddomesticandinternationalexperiencesinshalegasexploration,itispri-marilyregardedthattherehasamorefavorableshalegasresourcepotentialityinShandongprovince.Pro-spectiveareasofshalegasinShandongProvinceareCenozoicpaleogeneJiyanggroup,Wutugroupand Guanzhuanggroup,MesozoicearlyCretaceousLaiyanggroup,PaleozoicCarboniferous-PermianYue-mengougroupandShihezigroup.Onthebasisofconsideringoccurrencestrata,shalegaspotentialityand feasibilityofshalegasdevelopment,thepotentialareasofshalegasinShandongprovincehavebeenput forwardasfollows:Jiyangdepression,Linqingdepression,Jiaolaidepression,Huangxian(Longkou)de-pressionandhiddenupliftinsouthwesternShandong.Amongthem,thepotentialityinJiyangdepressionis thebest.%　　当前国际能源供需矛盾突出，能源问题日益成为各国关注的焦点，页岩气资源勘查开发备受世界瞩目；全球页岩气资源非常丰富，主要分布在北美、中亚和中国、拉美、中东和北非、前苏联地区；近年来随着开采和利用技术的不断进步，美洲、欧洲、亚洲国家对页岩气的勘查开发正在形成热潮。中国页岩气资源丰富，对页岩气的区域勘查研究越来越多，取得了不错的成果，但总体上中国页岩气的研究和勘查尚处于起步阶段，同时中国的开发技术与国外相比还存在较大的差距。结合山东省不同类型富含有机质泥页岩的具体特点和国内外页岩气勘查经验，初步认为山东省具有一定的页岩气形成条件，山东省页岩气远景区地层主要为新生代古近纪济阳群和五图群及官庄群，中生代早白垩世莱阳群，古生代石炭—二叠纪月门沟群和石盒子群；在综合考虑页岩的赋存层位、页岩成气潜力和页岩气开发可行性的基础上，提出了山东省页岩气潜力区为：济阳坳陷区、临清坳陷区、胶莱坳陷区和黄县(龙口)凹陷以及鲁西南潜隆起区，其中济阳临清坳陷地区页岩气潜力较好。