叠前反演坐标转换技术在惠州凹陷地层岩性圈闭评价中的应用  

The application of pre-stack inversion coordinate transformation technology to lithological traps evaluation of Huizhou depression

作　　者：罗伟 陈兆明 万琼华 李昭伟 易浩 

机构地区：[1]中海石油(中国)有限公司深圳分公司,深圳518054

出　　处：《物探化探计算技术》2017年第6期825-833,共9页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家科技重大专项(2011ZX05025-003-002)

摘　　要：珠江口盆地惠州凹陷勘探较为成熟,构造圈闭基本钻完,中浅层岩性圈闭研究逐渐成为勘探重点。针对岩性圈闭研究中遇到的三大难题:(1)尖灭线和断层匹配影响单个砂体的圈闭有效性问题;(2)尖灭线位置不确定难以落实圈闭规模问题;(3)多套砂体叠置情况严重难以落实圈闭有效性问题,以二次三维采集、处理数据为基础,应用叠前反演坐标转换技术解决中浅层岩性圈闭勘探难题。提出的方法和技术得到已开发油田验证,并且证实经验可以推广应用。The exploration in Huizhou depression of the Pearl River Mouth Basin has reached a high level. As structuraltraps are almost drilled in the area, the study of lithological traps in the shallow and middle formation has gradually been the fo-cus of the exploration. Three major conundrums encountered in the study of lithological traptiveness of a single sand body could match the closed relationship between the stratigraphic overlap lines and the fault？ Second-ly ,it s difficutt to determine the trap size when the position of stratigraphic overlap lines s uncertainty. Thirdly, itis difficult to confirm the trap effectiveness when multiple sets of sand bodies are m serious superposition. Based on exploration and processed data, problems encountered n the exploration of lithological traps n shaare successfully solved by applying the pre -stack inversion coordinate conversion technology. The proposed methods and tech-niques have been developed for oil field verification, and proven experience

关 键 词：惠州凹陷 岩性圈闭 叠前反演 坐标转换 

分 类 号：P631.4[天文地球—地质矿产勘探]