联合反演技术在预测有利储层中的应用——以阿尔凹陷为例  

Application of joint inversion technique to prediction of favorable reservoirs:A case study from Aer Sag

作　　者：王孟华 秦凤启 王亚 张静[1] 张玲彦 刘浩强 

机构地区：[1]中国石油华北油田分公司地球物理勘探研究院,河北任丘062552

出　　处：《岩性油气藏》2013年第1期88-94,共7页Lithologic Reservoirs

摘　　要：阿尔凹陷具有多物源、近物源、窄相带及相变快的沉积特征,砂体纵向叠置、横向连片现象十分明显,渗透性砂体分布复杂,有利储层分布范围难以确定,严重影响储量的精确计算。针对上述问题,采用联合反演技术,对该凹陷储量上交区块的渗透性砂体开展精细储层预测,搞清了渗透性砂体的厚度变化规律及分布范围,预测结果达到了储量计算所需的精度要求,为计算探明储量提供了重要参数和依据。实际应用证明,采用联合反演技术预测渗透性砂体精度较高,可以满足油田的储量计算需求。Aer Sag is characterized by multi-provenance, near-provenance, narrow facies belt and rapid facies change. The sand bodies present longitudinal stack and cross-binding, and the distribution of permeable sand bodies is complicated, so it is difficult to ascertain the distribution of the favorable reservoirs, which seriously affects the calculation of reserves. This paper carried out the fine reservoirs prediction by using joint inversion technique, and determined the thickness variation trend and the distribution range of permeable sand bodies. The result of calculation measures up to requirement of reserve calculating, which provides major parameters and references for the calculation of the proven reserves. The actual application proves that using joint inversion technique to predict permeable sand bodies can obtain a high accuracy and meet the demands of reserves calculation for oilfield.

关 键 词：砂体 渗透性储层 拟声波反演 储层参数反演 阿尔凹陷 

分 类 号：P631.4[天文地球—地质矿产勘探]