柴窝堡凹陷油气藏形成条件及成藏模式研究  

Studies on the forming conditions and patterns of the reservoirs in Chaiwopu Sag

作　　者：旷理雄[1] 郭建华[1] 宋阳[2] 童小兰[2] 李广才[2] 王英明[3] 

机构地区：[1]中南大学地学与环境工程学院,湖南长沙410083 [2]中国石化江汉油田分公司勘探开发研究院,湖北潜江433124 [3]中国石油大学盆地与油藏研究中心,北京102249

出　　处：《西安石油大学学报（自然科学版）》2005年第4期5-9,16,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：中国石化股份有限公司"准噶尔盆地南缘东段油气成藏条件及勘探靶区优选"研究项目(03-21)成果之一

摘　　要：改造型盆地评价是近年来石油地质研究的难点和重点.以成盆、成烃和成藏理论为指导,应用盆地分析、有效烃源岩评价、储层预测、改造型盆地模拟等技术和方法,综合研究分析了改造型盆地柴窝堡凹陷油气藏形成条件,预测了油气资源潜力,建立了油气成藏模式.结果表明:该区主要烃源岩层为上二叠统芦草沟和红雁池组,是油气资源分布的主要层位;主要储集层亦为上二叠统芦草沟和红雁池组,物性较差,总体为较好含气储层,是主要勘探目的层;存在构造、地层、岩性、复合4大类油气藏类型和自源—侧向排烃、它源—垂向排烃两类油气成藏模式.The evaluation of reformed basins is a difficult point and a focal point in the study of petroleum geology. The forming conditions of the reservoirs in Chaiwopu Sag are studied and the potential of hydrocarbon resource of this sag is predicted by using the techniques of basin analysis, effective hydrocarbon source rock evaluation, reservoir prediction and reformed basin modeling under the guidance of the theories of basin formation, hydrocarbon generation and reservoir formation. It is shown that Lucaogou Formation and Hongyanchi Formation of upper Permian are the main source rock layers, and oil and gas mainly distributes in them. They are also the main reservoirs, and the physical properties of the reservoirs are worse. But they are good gas-bearing reservoirs as a whole and the main hydrocarbon exploration target zones. In this sag, there are four types of hydrocarbon reservoirs, including structural reservoir, stratigraphic reservoir, lithologic reservoir, and complex reservoir, and there are two types of reservoir forming patterns, i.e., self source-lateral hydrocarbon expulsion and external source-vertical hydrocarbon expulsion.

关 键 词：柴窝堡凹陷 烃源岩 沉积相 成藏条件 成藏模式 

分 类 号：TE122.3[石油与天然气工程—油气勘探]