渤海海域成因环境约束的混积岩储层地球物理综合预测技术  

Geophysical Integrated Prediction Technology of Mixed Rock Reservoir with Genetic Environment Constraints in Bohai Sea Area

作　　者：王志萍 吕丁友 宋章强 陈延芳 于喜通 Wang Zhiping;Lu Dingyou;Song Zhangqiang;Chen Yanfang;Yu Xitong(Tianjin Branch of China National Offshore Oil Corporation Limited,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《地球科学》2020年第10期3693-3705,共13页Earth Science

基　　金：国家科技重大专项(No.2016ZX05024-003)。

摘　　要：勘探实践表明,混合沉积逐渐成为渤海海域中深部勘探的理想领域.通过大量钻井资料统计,揭示了渤海海域混合沉积的成因条件,认为渤海海域混积岩的形成受气候与水体环境、物源、古地貌条件以及沉积样式的控制.模型正演表明不同厚度以及不同地层岩性组合的混积岩地震响应特征不同.实例表明,在水体气候环境、物源类型、古地貌特征等成因环境约束的条件下,通过单井分析、地震相分析、微古地貌恢复、正演分析、属性分析、叠前反演等多种技术综合的以"成因模式找规律,地震技术描分布"的混积型储层综合预测技术组合在渤海海域混合沉积储层预测中是可行的,其中不同厚度及岩性组合混积型储层采取不同的储层预测关键技术对渤海海域混积岩勘探有较好的指导意义.Mixed sediment has gradually become an ideal area for deep exploration in Bohai Sea area in exploration practice.Through a large number of drilling data statistics,in this paper,it reveals the genetic conditions of mixed sediments in the Bohai Sea area.It is believed that the formation of mixed rock in Bohai Sea area is controlled by climate,water environment,provenance,paleogeomorphic conditions and sedimentary patterns.The forward modeling results show that the seismic response characteristics of the mixed rock with different thickness and different formation lithology combinations are different.Examples show that,under the constraints of the genetic environment,such as climate environment,provenance type and paleogeomorphic characteristics,it is feasible to use the combination of"genetic model to find the rule,seismic technique to trace the distribution"in the prediction of mixed sedimentary reservoirs through the combination of single well analysis,seismic facies analysis,micropaleogeomorphology recovery,forward modeling analysis,attribute analysis and other technologies.Different key techniques of reservoir prediction for mixed type reservoirs with different thickness and lithologic combination are of significance for the exploration of mixed rock in Bohai Sea area.

关 键 词：混合沉积 成因环境 储层预测 正演分析 渤海海域 沉积 

分 类 号：P612[天文地球—矿床学]