洪浩尔舒特凹陷变速成图方法研究及应用  

Research and Application of Variable Speed Mapping Method in Honghorsut Depression

作　　者：易远元[1] 王攀[2] 卢永合[3] 曾波[4] 杨会丽[3] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学)长江大学地球物理与石油资源学院,湖北武汉430100 [2]长江大学地球物理与石油资源学院,湖北武汉430100 [3]中石油华北油田分公司地球物理勘探研究院,河北任丘062552 [4]中石油华北油田分公司勘探开发研究院,河北任丘062552

出　　处：《石油天然气学报》2013年第5期58-61,4,共4页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2011ZX05026-001-04)

摘　　要：在构造复杂的地区,速度横向及纵向变化剧烈,常速构造成图精度低,无法识别一些高速岩体在地震剖面上呈现的隆起假象。洪浩尔舒特凹陷陡坡带部位的h71井区有巨厚层高速砂砾岩堆积,受其形成的隆起假象影响,在该区域导致了勘探失利。根据工区地质概况和地震资料,进行了地震数据品质分析、速度谱数据品质分析、井数据品质分析,建立了针对该区复杂地质情况和有安山岩特殊岩体分布的速度研究流程,并根据该流程绘制了高分辨率的等深度图,还原了地下真实形态,为勘探开发指明了有利方向,降低了勘探风险。In the complex structural area,the transverse and longitudinal velocities were changed dramatically,it was low precision when the subsurface structure was mapped by constant velocity,it was difficult to identify the illusion of uplift in seismic profile for some high-speed rocks.There was a pile of sand shale in Wellblock h71 which was located in the steep zone of Honghorsut Depression.Due to the illusion of uplift,oil exploration failure was induced in the area.Therefore a set of procedures on the velocity research were set up for the complex structural area where there existed special rocks.The actual underground form is restored,it points out the beneficial direction for oil development and reduce the risk of exploration.

关 键 词：变速成图 剩余层速度 洪浩尔舒特凹陷 

分 类 号：P631.44[天文地球—地质矿产勘探]