江汉盆地牌洲地区海相地层油气勘探地震采集技术研究

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英文篇名：On Seismic Acquisition of Hydrocarbon Exploration on Marine Beds of Paizhou Area in Jianghan Basin 中文刊名：江汉石油职工大学学报 英文刊名：Journal of Jianghan Petroleum University of Staff and Workers 作者：刘琴 ; 刘星 ; 张忠坡 英文作者：LIU Qin1 ; LIU Xing1 ; ZHANG Zhong-po2(1.Exploration & Development Research Institute of Jianghan Oilfield Company ; SINOPEC ; Qanjiang Hubei ; 433124 ; China ; 2.Geophysical Exploration Company of Jianghan Petroleum Administration ; SINOPEC ; Qianjiang Hubei ; 433100 ; China) 中文关键词：海相地层 ; 激发岩性 ; 一致性 ; 组合激发 ; 检波器串灵敏度 ; 高覆盖次数 英文关键词：Marine Bed ; Shooting Rock-type ; Consistency ; Array Shooting ; Geophone Cascade Sensitivity ; High Fold 出版日期：2009-03-20 机构：中国石化江汉油田分公司勘探开发研究院;中国石化集团江汉石油管理局地球物理勘探公司; 年：2009 期：02 出版单位：江汉石油职工大学学报

摘要

江汉盆地牌洲地区海相地层油气勘探存在两个问题:(1)井深设计未考虑激发岩性的影响,导致激发一致性差、能量弱,深层的海相地层资料品质差;(2)深层海相地层资料的信噪比和分辨率低。针对这两个问题,通过试验分析提出采用针对激发岩性进行组合激发和增加检波器串联个数以提高深层反射能量和分辨率;采用高覆盖、长排列以提高资料的信噪比,并获得了较好的应用效果。
In exploring oil and gas on marine beds of Paizhou Area in Jianghan Basin,there exist two problems.One is weak shooting consistency,energy and quality of marine bed strata data from deep reservoirs caused by neglecting the influence of shooting rock-type in designing well depth.The other is low signal-to-noise ratio and sharpness of separation of deep marine bed strata data.Aiming at the problems above,by experiments and analysis,the authors propose a method to increase the reflectance and sharpness of separation of deep marine beds by array shooting and geophone cascade adding in shooting rock-type.Also they propose a method to increase the signal-to-noise ratio of data by means of high fold and long pattern.These two methods bring about better effects.

引文

[1]朱广生,陈传仁,桂志先编著勘探地震学[M].武汉大学出版社,2004年.
    [2]唐建人李勤学等.高分辨率地震勘探理论与实践[M].第1版,石油工业出版社,2001.
    [3]傅朝奎,唐建人等.利用组合效应提高地震资料的信噪比和分辨率[J].石油地球物理勘探,2000(2).
    [4]孙大明,邵维.高分辨率三维地震采集技术[J].研究吉林大学学报(地球科学版),2002,32(4).