高分辨率层序格架约束下的储层预测——以莫里青油田双阳组二段为例  

Application of high-resolution sequence stratigraphy framework in reservoir prediction:A case study of 2nd member of Shuangyang Formation in Moliqing Oilfield

作　　者：胡源[1] 陈开远[1] 赵磊[1] 孙阳[1] 李庚 

机构地区：[1]中国地质大学能源学院,北京100083 [2]MI能源公司,吉林松原138000

出　　处：《石油实验地质》2013年第1期98-103,共6页Petroleum Geology & Experiment

基　　金：中国石油科技创新基金项目(2011D-5006-0303)资助

摘　　要：伊通盆地莫里青断陷具多物源、多期次走滑断陷盆地的特征,其断裂复杂,物源期次、储层展布认识不足。文章应用高分辨率层序地层学原理,岩—电—震相结合,通过对莫里青油田双阳组二段层序主要界面的识别与对比,首次将研究区双阳组二段划分为4个四级层序(对应基准面中期旋回)和13个基准面短期旋回,建立了莫里青油田高分辨率层序格架。结合粒度分析、地震属性和地震相分析等方法进行沉积微相划分,进而利用相控随机建模的方法,拟合开发程度较高的A、B区块的储层展布特征,选取最优模型,实现对开发程度较低的C、D区块进行储层预测的目的。该方法成功在莫里青油田C区块南部双二段预测出6个有利含油储层,实现储层定性分析向半定量、定量化分析的转变。With multiple sources and multiple stages for strike-slip, the Moliqing Fault Basin has a complicated fracture pattern, and the source stage and reserve distribution still remain discussing. By means of high-resolution sequence stratigraphy, combining lithologic, electric and seismic data together, the 2nd member of the Shuangyang Formation in the Moliqing Oilfield has been divided into 4 4th-grade sequences （equivalent to mid-term base-level cycles） and 13 short-term base-level cycles. A high-resolution sequence stratigraphy framework of the Moliqing Oilfield has been established. Grain size, seismic attribute and facies analyses have been applied to study sediment- ary micro-facies. Using facies-constrained stochastic modeling method, the reservoir distributing features of high- exploitation blocks A and B have been fitted and the optimal parameters and models have been selected. Then these parameters are applied to the reservoir prediction in blocks C and D which are in low exploitation degree. Six oil-bearing reservoirs in the 2nd member of the Shuangyang Formation in the south of block C have been predicted with this method. The change from qualitative analysis to semi-quantitative and quantitative analyses in reservoir research provides more reliable foundation for the exploration and development of lithologic reservoirs.

关 键 词：高分辨率层序 相控随机建模 储层预测 双阳组二段 莫里青油田 莫里青断陷 伊通盆地 

分 类 号：TE122.24[石油与天然气工程—油气勘探]