摘要
RVSP或VSP勘探,都属于垂直地震剖面法.由于激发点或接收点置于井中,距离目的层更近,在低速层中共传播一次,具有能量衰减少,频带宽等优势,在煤层气预测、岩性勘探等领域具有广泛的适用性.鉴于RVSP和VSP在野外数据采集和波场特征方面具有很大的相似性,目前RVSP资料常规处理一般采用VSP处理流程.相对于地面地震资料处理,VSP处理软件还不够成熟,影响了RVSP技术的发展.利用地面成熟处理方法来处理RVSP资料的新思路对提高RVSP成像精度具有重要意义.实现RVSP记录与地面记录的等效转换是采用地面处理方法的关键.实际资料表明RVSP等效地面处理方法具有很好的成像效果.
RVSP and VSP exploration belong to vertical seismic profile method.The shot point and receiver are located in the well,so the distance from the target layer is closer.Meanwhile the seismic wave propagates in low velocity only once,it has advantage of less energy attenuation and wide frequency band,therefore RVSP and VSP method have wide application in coalbed methane prediction and lithology exploration area.Because of the similarities in data acquisition and wave field character between RVSP and VSP,the general RVSP data processing adopts VSP processing workflow.Due to the immaturity of RVSP processing software relative to surface data processing,it influences the RVSP development.Using mature surface processing method in RVSP data processing has important significance in improving RVSP image accuracy.Realizing the RVSP record and surface record equivalent transformation is the key of using surface data processing method.Actual information demonstrates that RVSP equivalent surface data processing method has a good imaging effect.
引文
Balogh W T,Owen T E,Harris J M.1988.New piezoelectric transducer for hole-to-hole seismic applications[C].//68th Annual International Meeting of Society of Exploration Geophysicists(Expanded Abstracts).New Orleans.155-157.
Chen L Q.2011.The challenges China energy security confronts and their strategic solutions in the new century[J].Journal of Strategy and Decision-Making(in Chinese).2(5):11-18,29.
Chen S C.Wang H C.Chen L.2012.A high efficient super-gather migration method for 3D VSP data[J].Chinese J.Geophys.(in Chinese),55(1):232-237,doi:10.6038/j.issn.0001-5733.2012.01.022.
Du J.2009.VSP wavefield separation using local slopes attribute[J].Chinese J.Geophys.(in Chinese).52(7):1867-1872.
Guo S X.2001.Method of frequency-divisional residual statics and its application analysis.Oil Geophysical Prospecting(in Chinese),36(6):735-739.
He Z Q,Wu Q.Feng R.et al.2001.The application of pseudoVSP method to the detection of loosened zone in quarry wall[J].Geophysical and Geochemical Exploration(in Chinese).25(1):50-53.
Jang Y D.2004.A review of seismic-while-drilling technology[J].Geophysical Processing for Petrole(in Chinese).43(2):202-208.
Kennedy W,Wiggins W,Aronstam P.1988.Swept-frequency borehole source for inverse VSP and cross-borehole surveying[C].//68th Annual International Meeting of Society of Exploration Geophysicists(Expanded Abstracts).New Orleans.158.
Lee C,Park K G,Matsuoka T,et al.2010.Fracture imaging using image point transform and midpoint imaging of RVSP data[J].Geosciences Journal.14(4):393-401.
Li R H.2008.Study on the data processing method in complex geological condition(in Chinese)[D].Xuzhou:China University of Mining and Technology.
Liu L S.1998.Constrained first-arrival pickup and first-break residual static correction[J].Oil Geophysical Prospecting(in Chinese),33(5):604-610.
Lu J M.2009.Principle of Seismic Exploration(3rd ed)(in Chinese)[M].Dongying:China University of Petroleum.
Morozov I B,Carr B J,Smithson S B.1997.P-and SV-wave separation by polarization-dependent velocity filtering:application to vertical seismic profiles from Kola superdeep borehole,Russia[J].Computers&Geosciences,23(10):1051-1061.
Rector J W,Marion B P.1991.The use of drill-bit energy as a downhole seismic source[J].Geophysics,56(5):628-634.
Si X Y,Li L M,Xu L J,et al.2012.3D VSP multiple velocity analysis method and its application[J].Geophysical Prospecting For Petroleum(in Chinese),51(1):56-64,70.
Xiong Z.2002.The Data Processing of Complex Zone(in Chinese)[M].Beijing:Petroleum Industry Press.
Xu L L.2010.Primary study of RVSP data drocessing of seismic exploration while drilling(in Chinese)[D].Qingdao:Ocean University of China.
Xu X R,Wang X W,Wang Y C,et al.2012.Study and application of imaging condition for reverse-time migration based on wavefields separation[J].Progress in Geophys.(in Chinese),27(5):2084-2090.doi:10.6038/j.issn.1004-2903.2012.05.032.
Xu T.Yang C H,Gao E G,et al.2004.Block modeling and shooting ray tracing in complex 3-D media[J].Chinese Journal of Geophysics(in Chinese),47(6):1118-1126.doi:10.3321/j.issn:0001-5733.2004.06.027.
Yang C H,Leng C B,Li Y M 1997.Fast and accurate raytracing in 3-D media[J].Chinese Journal of Geophysics(in Chinese),40(3):414-420.
Yan H Y,Liu Y.Zhao Q H,et al.2011.A method for improving VSP resolution by inverse Q filtering[J].Oil Geophysical Prospecting(in Chinese),46(6):873-880.
Zhang W H,Han J Y,Zhu G F.1999.The Engineering application and theory of seismic while drilling[J].Acta Petrolei Sinica(in Chinese),20(2):67-72.
Zhao M Q.2010.The study of multi-component VSP/RVSP seismic forward modeling(in Chinese)[D].Beijing:China University of Petroleum.
陈柳钦.2011.新世纪中国能源安全面临的挑战及其战略应对[J].战略纵横,2(5):11-18,29.
Chen S T,邬扬夫.1991.利用逆VSP和井间层析成象技术描绘地下地层[J].石油物探译丛,(5):15-24.
陈生昌,王汉闯,陈林.2012.三维VSP数据高效偏移成像的超道集方法[J].地球物理学报,55(1):232-237,doi:10.6038/j.issn.0001-5733.2012.01.022.
杜婧.王尚旭,刘国昌,等.2009.基于局部斜率属性的VSP波场分离研究[J].地球物理学报,52(7):1867-1872.
郭树祥.2001.分频剩余静校正方法及应用效果分析[J].石油地球物理勘探,36(6):735-739.
How WeiChen,孙晶梅.1993用逆VSP数据对盐丘和盐丘下构造进行三维叠前深度偏移[J].石油物探译丛,(3):1-6.
何正勤.吴庆举,冯锐.等.2001.反向VSP透射层析成像法在岩墙松动层检测中的应用[J].物探与化探,25(1):50-53.
姜宇东.2004.随钻地震技术综述[J].石油物探.43(2):202-208.
刘连升.1998.约束初至拾取与初至波剩余静校正[J].石油地球物理勘探,33(5):604-610.
陆基孟.2009.地震勘探原理(第3版)[M].东营:中国石油大学出版社,49-50.
斯兴焱,李录明,胥良君,等.2012.三维VSP多波速度分析方法及应用[J].石油物探,51(1):56-64,70.
熊翥.2002.复杂地区地震数据处理思路[M=].北京:石油工业出版社
徐磊磊.2010.随钻地震资料逆VSP处理方法初探[硕士论文].青岛:中国海洋大学.
徐兴荣,王西文,王宇超,等.2012.基于波场分离理论的逆时偏移成像条件研究及应用[J].地球物理学进展,27(5):2084-2090,doi:10.6038/j.issn.1004-2903.2012.05.032.
徐涛,徐果明,高尔根,等.2004.三维复杂介质的块状建模和试射射线追踪[J].地球物理学报,47(6):1118-1126.doi:10.3321/j.issn:0001-5733.2004.06.027.
杨长春,冷传波,李幼铭.1997.适于复杂地质模型的三维射线跟踪方法[J].地球物理学报,40(3):414-420.
严红勇,刘洋,赵前华,等.2011.一种提高VSP分辨率的反Q滤波方法[J].石油地球物理勘探.46(6):873-880.
张绍槐,韩继勇,朱根法.1999.随钻地震技术的理论及工程应用[J].石油学报,20(2):67-72.
赵茂强.2010.多分量VSP/RVSP正演模拟方法研究[硕士论文].北京:中国石油大学.