多期三维地震无缝拼接在南方山地勘探中的应用  

Application of Multi-Period 3D Seismic Seamless Splicing in the Southern China Mountain Survey

作　　者：王伟 杜云强 曾拥军 程一敏 WANG Wei;DU Yunqiang;ZENG Yongjun;CHENG Yimin(Sinopec Geophysical Corporation Jianghan Branch*Qianjiang,Hubei,433100.China)

机构地区：[1]中石化石油工程地球物理有限公司,湖北潜江433100

出　　处：《江汉石油职工大学学报》2021年第6期14-16,共3页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：在南方山地地区实施多期三维地震无缝拼接,完善勘探区块资料的空白区,对后续整体勘探开发该区块油气储量具有重要意义。但多期炮点拼接实施中存在排列摆回原位等问题。按照排列重合、炮点顺延的原则,观测方式满足设计要求,同时考虑障碍区和高陡构造区以往观测系统变观设计的延续性,防止因覆盖次数差异大导致的观测属性不均匀。现场应用表明,三维地震的网格能够与周边三维地震的网格拼接保证CDP点重合,丰富观测系统各项属性,构造成像效果良好。It is of great significance for the subsequent overall exploration and development of oil and gas reserves of the block to implement the seamless splicing of multi-period 3D seismic survey and improve the blank area of exploration block data.However,there are some problems to be solved in the implementation of splicing of multi-period shot points,such as array swing back to the original position,repeated section measurement and seamless splicing.Subject to the operation experience,the observation pattern fulfills the design requirements according to the principle of overlapping array and continuous shot points»and meanwhile,the continuity of the shot point transferring design of the previous observation system in the obstacle area and the high-steep structure area is considered to prevent the uneven observation attributes caused by the large difference in folds.The field application shows that the 3D seismic grid can splice with the surrounding 3D seismic grid to ensure the overlapping of CDP points,so as to enrich the attributes of the observation system,and deliver a good structural imaging effect.

关 键 词：三维地震勘探 炮点拼接 无缝拼接 满覆盖 南方山地勘探 

分 类 号：TE122.2[石油与天然气工程—油气勘探]