叠前时间偏移技术及应用  

Prestack Time Migration Technology and Its Application

作　　者：曹延军 游洪文[2] 林玉英[2] 秦广胜[2] 

机构地区：[1]长江大学地球科学学院 [2]中原油田分公司物探研究院

出　　处：《断块油气田》2004年第5期21-22,共2页Fault-Block Oil & Gas Field

摘　　要：随着油气勘探开发目标的日趋复杂 ,对地震成像的精度也提出了越来越高的要求。近几年 ,叠前时间偏移成像技术在各大油田得到快速发展。中原油田是典型的断块油气田 ,地下复杂的地质构造制约着油田的进一步勘探开发 ,两年来对东濮凹陷多个复杂断块区应用叠前偏移技术 ,大大提高了成像精度 ,同时进一步完善了该项技术 。Higher seismic imaging exactness is in need as the targets of exploration and development are becoming more and more complex. In recent years, prestack time migration technology is developing rapidly in the big oil field. Because of the Zhongyuan oilfield being a style fault-block oil & gas field, the complex subsurface structure impedes the exploratory development. Imaging exactness have been greatly improved in two years, during which applying the prestack time migration to multiple fault block in Dongpu Depression. At the same time, the prestack time migration technique has been consummated and the satisfactory results have been achieved yet which applying it to other blocks.

关 键 词：叠前时间偏移 地震成像 基础处理 速度模型 偏移参数 

分 类 号：TE347[石油与天然气工程—油气田开发工程]