摘要
为准确把握P油田馆陶组沉积时期的物源方向、物源演化规律及其对沉积体系的影响,利用三维地震、岩石薄片、重矿物等资料,综合运用古地貌分析法、母岩示踪法、ZTR指数法等方法对P油田馆陶组的主控物源方向进行了分析,运用岩屑类型演化法、岩石结构成熟度演化法、地震属性分析法对物源演化规律进行了分析。研究认为:馆陶组沉积时期,控制沉积的物源主要为胶辽隆起与辽东隆起,物源的演化控制着沉积体系的演化;馆陶组早期,胶辽隆起为主控物源,沉积类型主要为近源辫状河沉积;馆陶组中期,主控物源逐渐由胶辽隆起转变为辽东隆起,沉积类型也由近源辫状河沉积向远源曲流河沉积演化;馆陶组晚期主控物源为辽东隆起,沉积类型则完全转变为曲流河沉积。
In order to accurately make clear of the provenances＇ direction and the sedimentary system during the deposition of Guantao Formation in Oilfield slice, heavy mineral data and so forth, comprehensively integrating with evolution laws and their influences on P, by means of the 3D seismic, rock palaeogeomorphology analyzing method, the rock-structure-maturity evolving method and seismic-attribute analyzing method. The study shows that during the deposition of Guantao Formation, the provenances controlling the sedimentation were generally Jiaoliao Uplift and Liaodong Uplift, the provenance evolution dominates that of the sedimentary system; in the early stage of Guantao Formation, Jiaoliao Uplift was the principal provenance, the sedimentary type mainly referred to the near-source braded river sedimentation; in the middle periods, the main oliao Uplift to Liaodong Uplift, the sedimentary type changed controlling provenances gradually transferred from Jia-from the near-source braded river sedimentation to the far-source meandering river sedimentation; from the late period of Guantao Formation, the main controlling provenances were Liaodong Uplift, the sedimentary type totally ehanged into the meandering river sedimentation.
作者
林国松
徐中波
汪利兵
刘彦成
李林
梁世豪
LIN Guosong;XU Zhongbo;WANG Libing;LIU Yancheng;LI Lin;LIANG Shihao(Bohai Petroleum Institute of CNOOC Ltd.Tianjin Branch,Tianjin 300452,China)
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2018年第6期22-27,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
国家科技重大专项"渤海油田加密调整及提高采收率油藏工程技术示范"(2016ZX05058001)
关键词
渤海湾盆地
物源分析
物源演化
母岩示踪
沉积体系
Bohai Bay Basin
provenance analysis
provenance evolution
parent/mother/source rock tracer
sedimentary system
