用保真保幅处理三维地震资料解释YW3井区东河砂岩尖灭线  

Interpretation of the pinch-out belt in YW3 Well field using relative amplitude preserved high resolution processing data

作　　者：王晓平[1] 陈波[2] 孙维昭 张红梅 藏殿光 

机构地区：[1]中国地质大学(北京) [2]东方地球物理公司

出　　处：《石油勘探与开发》2005年第1期63-66,共4页Petroleum Exploration and Development

摘　　要：塔里木盆地哈得4油田东部的YW3井区主要目的层段是石炭系东河砂岩,用常规方法处理的三维地震资料难以准确确定东河砂岩的尖灭线。对部分三维地震资料进行高分辨率的保幅保真重新处理后,在正演模型研究的基础上,分析东河砂岩在地震剖面上的特征,结合地震属性技术与波阻抗反演技术,进行综合地震地质解释研究,比较精细地刻画了该区东河砂岩尖灭线的展布。地震资料的保幅处理有利于解释岩性尖灭线位置。YW3 Well field is located in the east of Hade 4 Oilfield, Tarim Basin, in which one of the target reservoirs is Carboniferous Donghe Sandstone (DHS). It is difficult to make sure the position of DHS pinch-out by using the conventional processing 3D seismic data. The relative amplitude preserved high-resolution processing technique is used to reprocess the 3D seismic data. After the process, the comprehensive interpretation is carried out based on the forward model, and reasonably described the distribution of DHS pinch-out boundary through analyzing the features in section. The relative amplitude preserved techniques is helpful to the study of lithological pinch-out.

关 键 词：保幅处理 尖灭线 正演模型 地震资料解释 波阻抗反演 振幅属性 

分 类 号：P631.4[天文地球—地质矿产勘探]