基于地震反演的深水无井区储层预测方法研究  

Research on reservoir prediction method in deep water without well based on seismic inversion

作　　者：王新[1] 蔺营 江建虹[1] 王晓辉[1] WANG Xin;LIN Ying;JIANG Jianhong;WANG Xiaohui(Research Institute of Exploration and Development,PetroChina Liaohe Oilfield Company, Panjin 124010, China;School of Geosciences, China University of Petroleum(East China), Qingdao 266580, China)

机构地区：[1]中国石油辽河油田分公司勘探开发研究院,盘锦124010 [2]中国石油大学(华东)地球科学与技术学院,青岛266580

出　　处：《物探化探计算技术》2021年第4期397-405,共9页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然科学基金项目(41674130);国家科技重大专项(2016ZX05027004-001,2016ZX05002005-09HZ)。

摘　　要：对于深水盆地早期勘探,地质资料匮乏,钻井极少甚至没有钻井资料,无法满足储层反演的精度要求,制约了对勘探目标的评价。为了解决此问题,以某深水H区为例,运用地震层序模型理论,对地震数据进行时频分析,求得虚拟反射系数,通过道积分进而得到虚拟井的波阻抗曲线,完成虚拟井的构建。通过模型试算和利用相邻工区实际钻井资料的对比分析,验证了该方法的可行性与正确性。采用常规的地震反演方法对某深水H区进行波阻抗反演,实现了深水无井区的储层预测,结合地质情况进行分析,预测结果与地质认识相符,为勘探目标评价提供了借鉴。For the early exploration of deepwater basins,geological data are scarce,and there are very few or no well data,which cannot meet the accuracy requirements of reservoir inversion.This restricts the evaluation of exploration targets.In order to solve this problem,taking a certain deep water H area as an example,the seismic sequence model theory is used to perform time-frequency analysis on the seismic data to work areas.The conventional seismic inversion method was used to perform wave impedance inversion in a deep water H area,and the reservoir prediction in the deep water without well area was realized.Based on the analysis of the geological situation,the prediction results are consistent with the geological understanding,which provides a basis for the evaluation of exploration targets.

关 键 词：虚拟井技术 波阻抗反演 储层预测 深水勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]