塔里木盆地中原探区速度场研究方法  

The research method of velocity field in central plains prospect area of tarim basin

作　　者：陈业全[1] 刘春晓[2] 王道义[2] 

机构地区：[1]中国科学院贵阳地球化学研究所 [2]中原油田分公司物探研究院,濮阳457001

出　　处：《地球物理学进展》2004年第3期656-662,共7页Progress in Geophysics

摘　　要：　利用自行编程设计的速度场算法,建立了塔里木盆地中原探区的速度场模型,并应用于油气勘探生产之中.在塔中地区,影响平均速度的主要因素是地层埋深和火成岩的岩性.在巴楚地区,影响平均速度变化的主要因素是大的构造运动形成的多角度不整合界面和断距较大的断层.总结出了一套适合地质复杂地区速度场建立的方法;利用该速度场进行变速成图,能够提高成图精度、排除假构造、发现新的圈闭、减小勘探风险,落实发现了一批圈闭,提供探井多口,实现了油气勘探的突破.Utilizing velocity field algorithm designed by ourself has established velocity field of ZhongYuan Prospect Area in Tarim Basin(Tazhong area) . Application of the velocity field is successful in production . In Tazhong Area, the main factor of impacting average velocity is the depth of stratum and lithology of igneous .In Bachu Area , the major factor of impacting average velocity variety is multi big angle unconformity interface that heave tectonic movement formed and big heave fault. Summarized a set of establishing velocity field method that is effectual for complicated gelogy area. Applying the velocity field to variable velocity mapping can enhance accuracy of making map, eliminate pseudo structure,find new trap,reduce exploration risk . A batch of traps has been affirmed and found ,multi prospecting well has been offered. Oil gas breakthrough has been Actualized.

关 键 词：速度场 变速成图 叠加速度 

分 类 号：P631[天文地球—地质矿产勘探]