东营凹陷王家岗地区沙四上亚段地震反演储层预测
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摘要
王家岗地区主要发育沙四上亚段滩坝砂岩、浊积岩油藏。在沙四上亚段沉积时期,受古地貌控制,区内发育滩坝、浊积岩等多种沉积体系,不同类型岩性体叠置关系复杂,导致储层预测难度较大,影响了研究区油气勘探与开发。为了获取储层展布,本文应用地震储层反演技术,针对该区地质特点进行了声波曲线重构,对反演模型进行地震储层反演,并通过误差分析验证,得到较好的反演效果,完成了沙四上亚段各个砂层组储层平面分布的预测,对明确油气分布规律具有指导作用。
Reservoirs of the beach-bar sandstone and turbidite in the upper Es4 is widely developed in the Wangjiagang area.During the sedimentary period of the upper Es4,this area developed a multi-style sedimentary system,such as beach-bar sandstone and turbidite that were controlled by palaeogeomorphology,the overlapping relation between different types lithologic bodies are complex,the fact brings much difficulty to predict reservoir and impact the exploration and development of oil-gas in the area.A seismic reservoir inversion technique is applied to.According to the geological characteristics,the reconstruction of acoustic wave curve,and the seismic inverse of inversion model,through the verification of error analysis,a good inversion result and finish horizontal distribution of every sand group in the upper Es4 is obtained.
Reservoirs of the beach-bar sandstone and turbidite in the upper Es4 is widely developed in the Wangjiagang area.During the sedimentary period of the upper Es4,this area developed a multi-style sedimentary system,such as beach-bar sandstone and turbidite that were controlled by palaeogeomorphology,the overlapping relation between different types lithologic bodies are complex,the fact brings much difficulty to predict reservoir and impact the exploration and development of oil-gas in the area.A seismic reservoir inversion technique is applied to.According to the geological characteristics,the reconstruction of acoustic wave curve,and the seismic inverse of inversion model,through the verification of error analysis,a good inversion result and finish horizontal distribution of every sand group in the upper Es4 is obtained.
引文
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[7]张守鹏,刘成东,贺振建,等.东营凹陷深部“红层”地层划分方法探讨[J].地学前缘,2003,10(2):465-469.Zhang Shoupeng,Liu Chengdong,He Zhenjian,et al.Earth Science Frontiers,2003,10(2):465-469.
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