塔河油田3区石炭系超深薄层碎屑岩储层预测研究  

Study on Reservoir Forecasting for Ultra Deep Thin Clastic Rock of Carboniferous System in Block 3 of Tahe Oilfield

作　　者：盛海波[1] 刘蕊 付国民[2] 蔡玥[2] 张庭娇[2] 

机构地区：[1]中国石油化工股份有限公司西北油田分公司,新疆乌鲁木齐830011 [2]长安大学地球科学与资源学院,陕西西安710054

出　　处：《地球科学与环境学报》2011年第4期390-396,共7页Journal of Earth Sciences and Environment

基　　金：国家重点基础研究发展计划项目(2006CB202402)

摘　　要：针对塔河油田3区石炭系卡拉沙依组地震数据很难识别薄砂体的问题,对比分析了采用地震资料提频处理、分频处理、储层高分辨率敏感参数反演等不同手段得到的储层预测结果,筛选出高分辨率储层敏感参数反演作为卡拉沙依组砂泥岩段储层主要预测手段。通过探讨砂泥岩对声波时差的响应,以及对比分析自然电位、自然伽马以及补偿中子孔隙度与声波时差的关系,确定自然电位与声波时差的相关性最好,由此选取自然电位作为最佳电性敏感参数参与高分辨率敏感参数反演预测。从井点、剖面、平面等方面检验和评价高分辨率储层预测成果,结果表明其反演预测效果较好,符合塔河油田3区石炭系的储层预测要求,实现了对石炭系主力砂体空间展布的解释与描述,建立了塔河油田3区石炭系卡拉沙依组储层模型。In order to improve the identification of thin sand body according to the seismic data of Carboniferous Kalashayi Formation in Block 3 of Tahe Oilfield, the reservoir forecasting results by the means of seismic data frequency extraction, frequency separation and high resolution sensitive parameter inversion were compared, and then high resolution sensitive parameter inversion was considered as the main forecasting method for sand body reservoir of Kalashayi Formation. The response of sandstone and mudstone to acoustic travel time was discussed, and the relationships of spontaneous potential, natural gamma and porosity compensated neutron log to acoustic travel time were studied; the results showed that the relativity between spontaneous potential and acoustic travel time was best, so spontaneous potential was selected as the optimal electrical sensitive parameter of high resolution sensitive parameter inversion. The results showed that the inversion results were good according to the evaluation on well point inversion, profile inversion and plane inversion, and could be used to forecast reservoir of Kalashayi Formation in Block 3 of Tahe Oilfield; the explanation and description of space distribution of Carboniferous sand body could be explained and described easier; the reservoir model of Carboniferous Kalashayi Formation in Block 3 of Tahe Oilfield was built.

关 键 词：碎屑岩 储层预测 敏感参数 高分辨率反演 声波时差 自然电位 波阻抗 塔河油田 

分 类 号：P618.13[天文地球—矿床学] TE122.2[天文地球—地质学]