大庆长垣油田近地表模型约束折射波层析静校正
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摘要
大庆长垣油田高含水后期的剩余油挖潜研究对地震资料的品质要求极高,虽然地表高程变化不大,但近地表结构横向变化复杂,现有的野外静校正方法难以满足精度要求,包括微测井模型静校正、折射波静校正以及基于CMP面的前两种静校正组合方法。为此本文提出一种基于近地表模型约束的折射波层析静校正技术。在精细解释微测井数据的前提下,建立近地表模型,计算模型静校正量,并以此建立层析反演的初始速度模型;结合长垣油田近地表结构特点,拾取单炮记录的折射波初至负起跳时间,反演迭代计算层析静校正量;针对工区炮点边界及采集变观区,依据两种静校正量差异趋势面,分区域组合来确定最终静校正量。喇嘛甸工区三维地震资料的高分辨率处理结果表明该方法优于以往所采用的静校正方法。
High quality seismic data is imperatively needed for residual oil development in Daqing Changyuan.The near surface changes rapidly in Changyuan area,although its surface is flat.The existing statics methods,such as micro-logging model statics,refraction statics,and the combination of these two,could not meet statics precision requirement.Tomography static of refraction first break constrained with near surface model is proposed in this paper.Based on micro-logging data interpretation,a near surface model is built to calculate model statics,and to build an initial tomography velocity model.According to the characteristic of near surface,the wave trough time of refraction first break is picked up to obtain the time delay of each seismic trace for tomography statics computation.For shot boundary and irregular geometry areas,final statics will be determined according to the time difference trend between model statics and refraction statics.The high resolution results of Lamadian 3Dseismic survey have proved the priority of this method.
High quality seismic data is imperatively needed for residual oil development in Daqing Changyuan.The near surface changes rapidly in Changyuan area,although its surface is flat.The existing statics methods,such as micro-logging model statics,refraction statics,and the combination of these two,could not meet statics precision requirement.Tomography static of refraction first break constrained with near surface model is proposed in this paper.Based on micro-logging data interpretation,a near surface model is built to calculate model statics,and to build an initial tomography velocity model.According to the characteristic of near surface,the wave trough time of refraction first break is picked up to obtain the time delay of each seismic trace for tomography statics computation.For shot boundary and irregular geometry areas,final statics will be determined according to the time difference trend between model statics and refraction statics.The high resolution results of Lamadian 3Dseismic survey have proved the priority of this method.
引文
[1]侯启军,冯志强,冯子辉等.松辽盆地陆相石油地质学.北京:石油工业出版社,2009,166～194
[2]杜庆龙,朱丽红.喇萨杏油田特高含水期剩余油分布及描述技术.大庆石油地质与开发,2009,28(5):99～105Du Qinglong,Zhu Lihong.Remaining oil distributionand its description technology during ultra-high watercut stage in LA-SA-XING oilfield.Petroleum Geolo-gy&Oilfield Development in Daqing,2009,28(5):99～105
[3]李庆忠.走向精确勘探的道路.北京:石油工业出版社,1993,71～74
[4]Cox M著;李培明,柯本喜译.反射地震勘探静校正技术.北京:石油工业出版社,2004,235～236
[5]罗英伟,杨晶,段卫星等.几种静校正方法比较研究.石油仪器,2010,24(5):41～43Luo Yingwei,Yang Jing,Duan Weixing et al.Thecomparative study of several static corrections.PetroleumInstruments,2010,24(5):41～43
[6]王翠花.折射静校应用研究.石油物探,2000,39(4):107～113Wang Cuihua.An application study of refraction stat-ics.GPP,2000,39(4):107～113
[7]宁俊瑞,王顺国,樊佳芳等.基于对比折射法的三维静校正技术及其应用.石油物探,2006,45(3):277～284Ning Junrui,Wang Shunguo,Fan Jiafang et al.App-lication of 3-D static correction technology based oncorrelation refraction method.GPP,2006,45(3):277～284
[8]左海,宋小平,魏庚雨.折射和层析静校正量计算方法的综合应用.石油地球物理勘探,2007,42(增刊1):35～39Zuo Hai,Song Xiaoping,Wei Gengyu.Integrativeapplication of computational approaches of refractionand tomographic statics.OGP,2007,42(Sup1):35～39
[9]玄长虹,步长城,朱洪昌.层析静校正技术在永新地区的应用.油气地球物理,2009,7(1):39～42Xuan Changhong,Bu Changcheng,Zhu Hongchang.The techniques for tomographic static correction ap-plied in Yongxin Area.Petroleum Geophysics,2009,7(1):39～42
[10]李卫忠,Saleh A A,Adnan H.基于模型的复杂地表区静校正方法.石油地球物理勘探,2010,45(6):797～801Li Weizhong,Saleh A A,Adnan H et al.Model-based static correction method in complicated terrainareas.OGP,2010,45(6):797～801
[11]苏世龙,蔡希玲,曾庆芹等.层析静校正方法及其在东部勘探中的应用.油气地球物理,2010,8(1):11～16Su Shilong,Cai Xiling,Zeng Qingqin et al.Tomo-graphic static correction method and its application inthe eastern exploration.Petroleum Geophysics,2010,8(1):11～16
[12]陈志德,卢福珍,王忠吉等.基于表层数据库模型约束的组合静校正技术.大庆石油地质与开发,2008,27(1):139～142Chen Zhide,Lu Fuzheng,Wang Zhongji et al.Combina-tion static calibration technique based on surface databasemodel restraint.Petroleum Geology&Oilfield Devel-opment in Daqing,2008,27(1):139～142
[13]李培明,李振华,祖云飞等.模型约束的三维初至折射静校正.石油地球物理勘探,2003,38(2):199～202Li Peiming,Li Zhenhua,Zu Yunfei et al.Model-con-strained 3-D first break refraction static corrections.OGP,2003,38(2):199～202
[14]杨文采.地球物理反演的理论与方法.北京:地质出版社,1996,172～177
[15]井西利,杨长春,李幼铭等.地震静校正全局最优化问题的求解.地球物理学报,2001,45(5):707～712Jing Xili,Yang Changchun,Li Youming et al.Aglobal optimized algorithm for residual statics correc-tions.Chinese Journal of Geophysics,2001,45(5):707～712
[2]杜庆龙,朱丽红.喇萨杏油田特高含水期剩余油分布及描述技术.大庆石油地质与开发,2009,28(5):99～105Du Qinglong,Zhu Lihong.Remaining oil distributionand its description technology during ultra-high watercut stage in LA-SA-XING oilfield.Petroleum Geolo-gy&Oilfield Development in Daqing,2009,28(5):99～105
[3]李庆忠.走向精确勘探的道路.北京:石油工业出版社,1993,71～74
[4]Cox M著;李培明,柯本喜译.反射地震勘探静校正技术.北京:石油工业出版社,2004,235～236
[5]罗英伟,杨晶,段卫星等.几种静校正方法比较研究.石油仪器,2010,24(5):41～43Luo Yingwei,Yang Jing,Duan Weixing et al.Thecomparative study of several static corrections.PetroleumInstruments,2010,24(5):41～43
[6]王翠花.折射静校应用研究.石油物探,2000,39(4):107～113Wang Cuihua.An application study of refraction stat-ics.GPP,2000,39(4):107～113
[7]宁俊瑞,王顺国,樊佳芳等.基于对比折射法的三维静校正技术及其应用.石油物探,2006,45(3):277～284Ning Junrui,Wang Shunguo,Fan Jiafang et al.App-lication of 3-D static correction technology based oncorrelation refraction method.GPP,2006,45(3):277～284
[8]左海,宋小平,魏庚雨.折射和层析静校正量计算方法的综合应用.石油地球物理勘探,2007,42(增刊1):35～39Zuo Hai,Song Xiaoping,Wei Gengyu.Integrativeapplication of computational approaches of refractionand tomographic statics.OGP,2007,42(Sup1):35～39
[9]玄长虹,步长城,朱洪昌.层析静校正技术在永新地区的应用.油气地球物理,2009,7(1):39～42Xuan Changhong,Bu Changcheng,Zhu Hongchang.The techniques for tomographic static correction ap-plied in Yongxin Area.Petroleum Geophysics,2009,7(1):39～42
[10]李卫忠,Saleh A A,Adnan H.基于模型的复杂地表区静校正方法.石油地球物理勘探,2010,45(6):797～801Li Weizhong,Saleh A A,Adnan H et al.Model-based static correction method in complicated terrainareas.OGP,2010,45(6):797～801
[11]苏世龙,蔡希玲,曾庆芹等.层析静校正方法及其在东部勘探中的应用.油气地球物理,2010,8(1):11～16Su Shilong,Cai Xiling,Zeng Qingqin et al.Tomo-graphic static correction method and its application inthe eastern exploration.Petroleum Geophysics,2010,8(1):11～16
[12]陈志德,卢福珍,王忠吉等.基于表层数据库模型约束的组合静校正技术.大庆石油地质与开发,2008,27(1):139～142Chen Zhide,Lu Fuzheng,Wang Zhongji et al.Combina-tion static calibration technique based on surface databasemodel restraint.Petroleum Geology&Oilfield Devel-opment in Daqing,2008,27(1):139～142
[13]李培明,李振华,祖云飞等.模型约束的三维初至折射静校正.石油地球物理勘探,2003,38(2):199～202Li Peiming,Li Zhenhua,Zu Yunfei et al.Model-con-strained 3-D first break refraction static corrections.OGP,2003,38(2):199～202
[14]杨文采.地球物理反演的理论与方法.北京:地质出版社,1996,172～177
[15]井西利,杨长春,李幼铭等.地震静校正全局最优化问题的求解.地球物理学报,2001,45(5):707～712Jing Xili,Yang Changchun,Li Youming et al.Aglobal optimized algorithm for residual statics correc-tions.Chinese Journal of Geophysics,2001,45(5):707～712
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