摘要
依舒地堑位于黑龙江省中东部,为一新生代断陷盆地,沉积地层主要为陆相古近-新近系,生烃源岩为湖相泥岩。研究表明依舒地堑的主要烃源岩在汤原断陷以达连河组泥岩品质最优,母质类型个别达到Ⅰ-Ⅱ_A型,方正断陷以方3井钻遇的新安村组泥岩品质最优,母质类型与汤原断陷的达连河组泥岩相当;生烃的门限深度汤原断陷在700～2 000 m之间,门限深度的变化与局部火山活动关系密切。在方正断陷生烃的门限深度在800～1500 m之间,计算表明汤原断陷石油资源量为(1．385～2．77)×10~8 t,天然气的资源量为(150．7～299．5)×10~8 m^3;方正断陷石油资源量为(0．853～0．942)×10~8 t,天然气的资源量为(263．8～366．0)×10~8 m^3。
Yishu graben is a Cenozoic faulted basin,situated in the mid-eastern part of Heilongjiang province,the sedimentary formation of which is mainly continental Tertiary-Quaterna- ry system and the genetic source rock is lacustrine facies mud- stone.Study shows the mudstone quality of Dalianhe forma- tion in the Tangyuan faulted basin of Yishu graben is the best,and only one or two parent material can be up to typeⅠ-Ⅱ_A.For Fangzheng fault basin,however,Xin'ancun for- mation of Fang 3 well has the best mudstone quality and the similar parent material type with Dalianhe in Tangyuan faul- ted basin.The threshold depth for oil generation influenced by volcano is at 700～2000 m and the resource of oil and gas is 1.385×10~8～2.770×10~8 t and 150.7×10~8～299.5×10~8 m^3 in Tangyuan faulted basin,but in Fangzheng faulted basin the number is 800～1500 m and 0.853×10~8～0.942×10~8 t and 263.8×10~8～366×10~8 m^3 respectively.
出处
《石油地质与工程》
CAS
2007年第1期5-8,36,共5页
Petroleum Geology and Engineering
基金
大庆油田有限责任公司研究项目资助
项目编号Q/DYYKY1.2-2-96
