柴达木盆地西部尕斯库勒油田油气成藏动力学特征  

Pool-forming Dynamic Characteristics of Gasqule Oilfield in Western Qaidam Basin

作　　者：段毅[1] 孙涛[1] 吴保祥[1] 彭德华[2] 于文修[1] 

机构地区：[1]中国科学院地质与地球物理研究所油气资源研究重点实验室,甘肃兰州730000 [2]青海油田分公司勘探开发研究院,甘肃敦煌736202

出　　处：《天然气地球科学》2009年第3期309-315,共7页Natural Gas Geoscience

基　　金：国家自然科学基金项目(编号:40872092;40772069);国家重点基础研究发展规划项目(编号:2005CB422105)联合资助

摘　　要：成藏动力学是石油地质学研究的热点领域,它以油气成藏的动力学机制和动力学过程为核心,探讨油气聚集和分布规律。尕斯库勒油田位于柴达木盆地西部,是柴达木盆地最大的油田。应用成藏动力学原理,研究了该油田油气成藏动力学条件和过程,探讨了成藏动力学机制;在纵向上比较典型地划分出他源常压开放次生成藏动力学系统、他源常压开放原生成藏动力学系统、自源高压封闭原生成藏动力学系统和混源高压封闭原生成藏动力学系统;并且指出混源高压封闭原生成藏动力学系统中的E31层系和他源常压开放原生成藏动力学系统中的N12—N21层系为今后进一步主要勘探的目标层系。Oil pool-forming dynamic method is to understand the accumulation distribution rule of oil and gas by studying the pool-forming dynamic mechanism and process. Gasqule oilfield is the largest one in the Qaidam Basin. The pool-forming dynamic conditions and process of Gasqule oilfield were studied, and the pool-formlng dynamic mechanism was discussed according to the pool-forming dynamic principle. The studied region was vertically divided into four pool-forming dynamic systems including outward-sourced, normal-pressure open secondary dynamic system; outward-sourced, normal-pressure open primary dynamic system; self-sourced, high-pressure sealed primary dynamic system; and mix-sourced, high-pressure sealed primary dynamic system. The further exploration should be focused on the E3^1 layer in the mixsourced, high-pressure sealed primary dynamic system, and the N1^2-N2^1 layer in the outward-sourced, normal-pressure open primary dynamic system.

关 键 词：成藏动力学 油藏形成条件 地层剩余压力 勘探目标层系 尕斯库勒油田 

分 类 号：TE122.13[石油与天然气工程—油气勘探]