变速成图技术在西部山前带应用研究  

Application of Varying Velocity Mapping Technique to Western Mountain Front Zones

作　　者：钱焕菊[1] 郝志伟[1] 李守济[1] 张建华[1] 唐付良[1] 时秀朋[1] 王有涛[1] 

机构地区：[1]中国石化胜利油田分公司西部新区研究中心

出　　处：《低渗透油气田》2012年第3期50-54,共5页

摘　　要：胜利油田西部探区（尤其山前带）地袁、地下地质条件复杂，速度空间变化剧烈，严重影响了构造分析、圈闭落实等工作的准确性。目前，变速成图技术在西部山前带已逐渐成为速度分析、构造落实的主要技术。但是其应用过程中层速度求取方法的选择、技术要点总结及不同参数的优选涉及较少。本次研究通过准噶尔盆地南缘阿什里、北缘哈山等地区变速成图工作，解剖了变速成图主要过程，对模型层析变速成图技术要点进行了总结．对影响层速度求取精度的参数进行了优选。同时，在叠加速度异常分类、叠加速度校正以及速度场校正等方面提出了较新的认识。The complex surface and geological conditions and the dramatic spatial variations of the velocity in the Western New Prospect （especially the mountain front zones） of Shengli Oilfield seriously affect the accuracy of the work of structural analysis and traps ascertainment. At present, varying velocity mapping is becoming the main technology for velocity analysis and traps ascertain- ment in the western mountain front. However, choosing methods of obtaining the interval velocity, summarizing the technical points, and optimization of various parameters are less involved in the application process. The main process of varying velocity mapping is anatomized through the work of varying velocity mapping in Ashry of Junggar basin southern edge and Hala＇alat Mountain of the northern margin. The technical points of varying velocity mapping by the model chromatography are summarized, and the parameters that affect the accuracy of the interval velocity are optimized. Meanwhile, new understanding of stacking velocity anomalies classifica- tion, stacking velocity collection and velocity field collection is put forward.

关 键 词：山前带 变速成图 叠加速度校正 模型层析技术 速度场校正 

分 类 号：P283.7[天文地球—地图制图学与地理信息工程]