摘要
石炭统黄龙组为南大巴山前缘天然气主力产层。文中以岩心观察、铸体薄片鉴定、岩心物性、孔隙结构等资料分析为基础,综合前人的观点,对南大巴山前缘地区黄龙组储层特征进行了深入研究。进而确定该地区黄龙组储层岩石类型主要有微晶-粉晶灰岩、含生屑微晶灰岩、去云化粉-细晶次生灰岩、残余颗粒粉—细晶白云岩和岩溶角砾岩;对储层发育有利的成岩作用主要有白云石化作用、重结晶作用、破裂作用和该地区石炭系特有的古岩溶作用。并主要讨论了岩石类型、白云岩化以及岩溶作用对黄龙组储层发育的影响。
The gas reservoir of carboniferous Huanglong Formation in the margin of southern Daba Mountain is the main producing formation.Based on core observation,cast thin section identification,core properties,pore structure data,combined with the previous comprehensive view,the reservoir characteristics of Huanglong Formation are analyzed.The lithology of Huanglong Formation is mainly micrite-powder limestone,containing bioclastic microcrystalline limestone,removing dolomitizetion fine-grained limestone,residual crystal powder-fine grained dolomite and karst breccia.The diageneses favorable for reservoir development are mainly dolomitization,recrystallization,fracturing and unique karstification in the study area.The effects of rock type,dolomitization and karstification on the reservoir development ofHuanglongFormation are discussed.
出处
《岩性油气藏》
CSCD
2010年第2期62-68,共7页
Lithologic Reservoirs
关键词
岩石类型
成岩作用
储层发育
上石炭统黄龙组
南大巴山前缘
rock type
diagenesis
reservoir development
Upper Carboniferous Huanglong Formation
the margin of southern Daba Mountain
