沙垒田凸起古近纪源—汇系统中有利储层评价与预测

发布时间：2018-05-09 07:26

本文选题：源-汇系统类型 + 成岩作用　；参考：《地球科学》2017年11期

【摘要】：渤海湾盆地沙垒田凸起与围区凹陷形成了典型的陆相断陷湖盆源-汇系统.基于钻井、地震、岩心及储层分析资料,刻画了沙垒田凸起及围区源-汇系统要素特征,并将源-汇系统分为断裂陡坡型、断裂缓坡型、斜坡型及断槽型4大类.不同类型源-汇系统的物源供给控制相应的沉积体系发育,从而影响其储层的成岩作用与物性特征.研究表明,沙垒田凸起围区凹陷的储层发育受源-汇系统要素耦合与成岩作用的共同控制,其中断裂缓坡带由于源区高差与汇水面积大,沿断裂坡折带分布的沉积体系与砂体规模大、范围广,砂岩成分、结构成熟度较高,埋深浅、机械压实作用较弱,次生孔隙发育,为优质储层发育的有利区,而断裂陡坡型、斜坡型及断槽源-汇系统次之.
[Abstract]:A typical continental faulted lacustrine basin source-sink system has been formed in the Shalieda uplift and surrounding sag of Bohai Bay Basin. Based on the data of drilling, earthquake, core and reservoir analysis, this paper describes the characteristics of source-sink system in Shalieda uplift and surrounding area, and divides the source-sink system into four types: fault steep slope type, fault gentle slope type, slope type and fault-trough type. The source supply of different types of source-sink systems controls the development of the corresponding sedimentary systems, thus affecting the diagenesis and physical properties of the reservoirs. The study shows that the reservoir development of the sag in the uplift area of Shalieda is controlled by the coupling of the elements of source-sink system and diagenesis, in which the fault gentle slope zone is controlled by the difference in height of the source area and the large area of water catchment. The sedimentary system and sand body distributed along the fault slope break zone are of large scale, wide range, sandstone composition, high structural maturity, shallow burial depth, weak mechanical compaction and secondary porosity development, which are favorable areas for the development of high quality reservoir, while the fault steep slope type. Slope type and fault trough source-sink system followed.
【作者单位】：油气资源与工程国家重点实验室中国石油大学地球科学学院;中国地质大学能源学院;中国地质大学构造与油气资源教育部重点实验室;中海石油(中国)有限公司天津分公司渤海石油研究院;
【基金】：国家自然科学基金项目(No.41272133) 博士后基金项目(No.2015M581269) 国家科技重大专项(No.2016ZX05024-002-002)
【分类号】：P618.13

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