中国地质Issue(4)：1387-1398,12.
四川盆地东部地区大安寨段页岩气（油）储层特征
Characteristics analysis of Da'anzhai shale gas (oil) reservoirs in eastern Sichuan Basin
摘要
Abstract
Based on the core and field section observation and microscopic section in combination with analysis of geology, drilling and physical properties data, this paper discusses in detail sedimentary facies and reservoir characteristics of Da'anzhai member in eastern Sichuan Basin. The division scheme of sedimentary facies in Da'anzhai member is put forward, which argues that the transitional parts at the edge, on the slope and on the semi-deep lake biasing deep lake side are favorable for developing heterogeneity and shale gas (oil) reservoirs, that reservoirs of Da'anzhai member in the study area belong to ultra-low porosity and permeability pore fracture type reservoirs, whose reservoir space comprises of fracture, intracrystalline pore, eroded micro-pores, solution openings and dissolved caves, dominated by fractures, with solution openings and dissolved caves taking the second place. In addition, compaction, pressure solution, cavity filling, silicification and cementation are main factors adversely affect reservoir quality, while dissolution and rupture process improve reservoir quality. Therefore, The development of reservoirs in Da'anzhai member is not only controlled by sedimentary facies, rock type, diagenesis and tectonics but also affected by content of organic carbon, maturity of organic, brittle mineral content, thickness and buried depth of shale in the study area.关键词
沉积相/储集空间/成岩作用/有机碳含量/有机质成熟度Key words
sedimentary facies/reservoir space/diagenesis/content of organic carbon/maturity of organic matter分类
天文与地球科学引用本文复制引用
卢炳雄,郑荣才,梁西文,徐文礼..四川盆地东部地区大安寨段页岩气（油）储层特征[J].中国地质,2014,(4):1387-1398,12.基金项目
中国石油天然气总公司攻关项目(06-01A-02-01)资助。 （06-01A-02-01）
