摘要
川东北及川北是未来几年中国油气勘探开发的重点地区,这个地区的储层类型主要以裂缝-孔隙型为主。通过对南江桥亭、流坝剖面野外地质调查,认为南江地区裂缝可分为成岩缝与构造缝两大类,其中成岩缝有成岩收缩缝和压溶缝合线两种类型;构造缝主要有与岩层面垂直、与水平面垂直、与岩层面低角度相交、与水平面低角度相交的剪切缝及纵张缝、顺层缝和共轭剪切带雁列张裂缝等七种类型。
The Northeast Sichuan basin has became an important area for oil and gas exploration and development. This region is characterized by fracture-porous reservoir. The field study of the Qiaoting and Liuba Sections indicates that fractures in Nanjiang may be divided into diagenetic and structural types and diagenetic fractures may be subdivided into contraction fracture and pressolved suture, while structural fractures may be subdivided into 7 subtypes such as orientation-different shearing and tensional as well as conjugate fractures.
出处
《四川地质学报》
2008年第3期186-189,共4页
Acta Geologica Sichuan
关键词
油气勘探
储层
裂缝
四川南江
oil and gas exploration
reservoir
fracture
Nanjiang, Sichuan
