摘要
珠江口盆地白云凹陷受控于高热流背景,烃源岩热演化程度高,传统研究认为以天然气成藏为主。然而近年勘探实践获得了多个规模性商业轻质油田的发现,油层具有埋藏浅、物性好、油品轻的特点,常规方法无法有效地识别流体性质。针对上述难题,利用地化定量示踪技术确定原油的有利分布区,通过将流体因子融入反演目标函数实现流体因子反演,有效地提高了流体因子计算的可靠性与计算效率,实现叠前反演与流体识别的有效结合,通过优化的流体岩石物理解释量版及Gassmann流体因子直接反演技术对油藏进行有效识别,实际资料处理及钻探结果验证了该方法的可靠性和有效性,对深水勘探具有较好地借鉴意义。
The traditional research believes that only natural gas accumulated in Baiyun depression of Pearl river mouth basin has the high thermal evolution degree of source rock controlled by high geothermal background.However a series of scale commercial light oil fields with the characteristics of shallow burial,good physical property and light oil are discovered through latest exploration.Traditional methods are inefficient to discriminate oil,gas and water.To resolve the above problems,the favorable distribution area of crude oil was determined through geochemical quantitative tracer technique firstly.Then the fluid factor is incorporated into the inversion objective function to achieve the inversion of fluid factor,which effectively improves the reliability and efficiency of fluid factor calculation,and realizes the effective combination of pre stack inversion and fluid identification.Finally,we did the comprehensive hydrocarbon detection based on optimized lithofacies fluid rock physics template and Gassmann fluid factor direct inversion.The real data processing and exploration practice have proved the feasibility and validity of this method which is instructive to deep water exploration.
作者
刘杰
吴国忱
张忠涛
朱焱辉
张文珠
李志晔
LIU Jie;WU Guochen;ZHANG Zhongtao;ZHU Yanhui;ZHANG Wenzhu;LI Zhiye(School of Geosciences,China University of Petroleum（East China）,Qingdao 266580,China;Shenzhen Branch of CNOOC（China）Ltd.,Shenzhen 518067,China)
出处
《物探化探计算技术》
CAS
CSCD
2018年第3期311-317,共7页
Computing Techniques For Geophysical and Geochemical Exploration
基金
"十三五"国家科技重大专项(2016ZX05026)
关键词
珠江口盆地
白云凹陷
定量示踪
轻质油
流体因子
Pearl river mouth basin
Baiyun sag
quantitative tracing
light crude oil
fluid factor
