矢量叠加初至波定位方法及精度评价

doi:10.13810/j.cnki.issn.1000-7210.2021.01.005

摘要
图/表
参考文献
相关文章 (2)

全文: PDF (24552 KB) HTML []
输出: BibTeX | EndNote (RIS)

摘要海上勘探的海底电缆或节点检波器沉放过程中，因受洋流、潮汐、缆绳等因素影响，沉放位置会发生漂移现象，故有必要对检波点进行二次定位以确定其在海底的准确位置。为此，文中提出矢量叠加初至波定位方法。通过构建每个炮检对的位置矢量，进行矢量叠加，得到检波点的准确坐标位置，并给出定位精度的量化评价指标，形成了一套从初至拾取、定位计算到定位精度评价的完整定位方法。实际数据应用结果表明，利用该方法能得到海底电缆或节点检波器准确的二次定位结果，还可对定位精度做出定量评价，具有广阔的应用前景。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	杨海申
	徐丽军
	马洁
	侯昆鹏
	肖永新

关键词 ：海上勘探, 初至波定位, 矢量叠加, 定位精度评价, 线性动校正(LMO)

Abstract：Influenced by current, tide, cable,etc., the final position of submarine cable or node geophone would drift from the designed position in offshore seismic survey, so that it is necessary to determine the exact position of the receiver point on the seabed through secondary positioning. A first-break positioning method, namely a vector superposition method, is proposed in this paper. The exact coordinates of the receiver point can be obtained by constructing the vector of each source-receiver pair and vector superposition. And integrating with the quantitative evaluation index of positioning accuracy, we get a positioning method involving first break picking, positioning calculation and posi-tioning accuracy evaluation. Applications to raw data have proved that the method can provide accurate secondary positioning results of submarine cable or node geophone, and quantitatively evaluate the positioning accuracy. It has a wide application in marine seismic survey.

Key words： marine exploration first-break positioning vector superposition positioning accuracy evaluation linear normal moveout (LMO)

收稿日期: 2020-03-12

PACS:

P631

基金资助:本项研究受中国石油集团东方地球物理公司科技项目“浅海大面积OBN三维高效混采地震配套技术及其在ADNOC项目中的应用”（06-01-02-2019）资助。

通讯作者: 杨海申,河北省涿州市华阳东路东方地球物理公司科技园采集技术中心方法研究所,072751。Email:yanghaishen@cnpc.com.cn E-mail: yanghaishen@cnpc.com.cn

作者简介: 杨海申,高级工程师,1965年生;1983年毕业于石油物探学校(物探解释专业),2008年获石油大学(华东)资源勘查专业函授本科学历;现在中国石油集团东方地球物理公司采集技术中心从事地震数据采集方法研究与克浪软件开发,主要研究领域为初至拾取、静校正、海上初至波二次定位等。

引用本文:

杨海申, 徐丽军, 马洁, 侯昆鹏, 肖永新. 矢量叠加初至波定位方法及精度评价[J]. 石油地球物理勘探, 2021, 56(1): 49-56. YANG Haishen, XU Lijun, MA Jie, HOU Kunpeng, XIAO Yongxin. First-break positioning and accuracy evaluation based on vector superposition. Oil Geophysical Prospecting, 2021, 56(1): 49-56.

链接本文:

http://www.ogp-cn.com/CN/10.13810/j.cnki.issn.1000-7210.2021.01.005 或 http://www.ogp-cn.com/CN/Y2021/V56/I1/49

[1]	王忠成,周华伟,童思友,等. 深水海底节点二次定位方法[J]. 石油地球物理勘探,2020,55(2):242-247.WANG Zhongcheng,ZHOU Huawei,TONG Siyou,et al. Secondary positioning of deep ocean bottom nodes[J]. Oil Geophysical Prospecting,2020,55(2):242-247.
[2]	陈浩林,张保庆,秦学彬,等. 海上OBC地震勘探高精度潮汐校正方法[J]. 石油地球物理勘探,2014,49(增刊1):1-4.CHEN Haolin,ZHANG Baoqing,QIN Xuebin,et al. High resolution tide correction method for seismic OBC prospecting[J]. Oil Geophysical Prospecting,2014,49(S1):1-4.
[3]	肖永新,杨海申,蒋先艺,等. OBC勘探中扫描拟合二次定位方法[J].石油地球物理勘探,2012,47(3):366-370.XIAO Yongxin,YANG Haishen,JIANG Xianyi,et al. A secondary positioning method by grid scanning and curved-surface fitting in OBC survey[J]. Oil Geo-physical Prospecting,2012,47(3):366-370.
[4]	吕公河,邸志欣,朱伟强,等. 滩海浅层三维地震勘探技术[J]. 石油地球物理勘探,2008,43(6):613-622.LYU Gonghe,DI Zhixin,ZHU Weiqiang,et al. 3-D shallow seismic exploration technique in beach area[J]. Oil Geophysical Prospecting,2008,43(6):613-622.
[5]	倪成洲,全海燕,陈刚,等.一种高精度初至波二定位新方法——搜索法[J]. 石油地球物理勘探,2008,43(2):131-133,157.NI Chengzhou,QUAN Haiyan,CHEN Gang,et al. A new method for high-precision first break secondary positioning-search method[J]. Oil Geophysical Prospecting,2008,43(2):131-133,157.
[6]	刘慧敏,王振杰,赵爽.深度约束的浅海多目标声学定位方法[J].石油地球物理勘探,2019,54(6):1181-1187.LIU Huimin,WANG Zhenjie,ZHAO Shuang. A depth-constraint multi-target positioning acoustic approach in shallow waters[J]. Oil Geophysical Prospecting,2019,54(6):1181-1187.
[7]	童利清,梁宝军,赵双生,等. 一种基于初至拟合的二次定位方法[C]. 中国石油学会物探技术研讨会,2017,79-82.TONG Liqing,LIANG Baojun,ZHAO Shuangsheng,et al. A secondary positioning method based on first break fitting[C]. Geophysical Exploration Technology Seminar of Chinese Petroleum Society,2017,79-82.
[8]	金翔龙. 海洋地球物理研究与海底探测声学技术的发展[J]. 地球物理学进展,2007,22(4):1243-1249.JIN Xianglong. The development of research in marine geophysics and acoustic technology for submarine exploration[J]. Progress in Geophysics,2007,22(4):1243-1249.
[9]	易昌华,任文静,王钗. 二次水声定位系统误差分析[J]. 石油地球物理勘探,2009,44(2):136-139.YI Changhua,REN Wenjing,WANG Chai. Analysis on error of secondary acoustic positioning system[J]. Oil Geophysical Prospecting,2009,44(2):136-139.
[10]	王毅. 石油勘探中水下高精度定位算法研究[D].山东青岛:中国石油大学(华东),2014.WANG Yi. Research on Algorithms of High-Precision Underwater Positioning in Petroleum Exploration[D]. China University of Petroleum (East China),Qingdao,Shandong,2014.
[11]	程元方,李素闪,张文栋,等. 海底电缆资料处理关键技术及其应用[J]. 石油地球物理勘探,2017,52(增刊2):26-31.CHENG Yuanfang,LI Sushan,ZHANG Wendong,et al. Key techniques for OBC data processing[J]. Oil Geophysical Prospecting,2017,52(S2):26-31.
[12]	杨京涛,朱伟强,秦豹. 海上二次定位技术的研究与应用[J]. 石油物探,2002,41(增刊):67-69.YANG Jingtao,ZHU Weiqiang,QIN Bao. Research and application of secondary positioning technique in sea exploration[J]. Geophysical Prospecting for Petroleum,2002,41(S):67-69.
[13]	李加喜,唐廷海,朱伟强. 浅海勘探初至波二次定位技术研究[J]. 胜利油田职工大学学报,2009,23(4):35-36,52.LI Jiaxi,TANG Tinghai,ZHU Weiqiang. Research of offshore second positioning technology based on the first break of seismic wave[J]. Journal of Shengli Oil Field Staff University,2009,23(4):35-36,52.
[14]	徐维秀,段卫星,刘治红,等. 提高初至波二次定位精度技术的探讨[J]. 石油物探,2009,48(3):239-243.XU Weixiu,DUAN Weixing,LIU Zhihong,et al. Discussion on the technology for improving the accuracy of secondary positioning with first break[J]. Geophysical Prospecting for Petroleum,2009,48(3):239-243.
[15]	韩立强,常稳.海底电缆初至波二次定位技术的应用[J].石油物探,2003,42(4):501-504,512.HAN Liqiang,CHANG Wen. Application of first break second positioning technique in OBC[J]. Geophysical Prospecting for Petroleum,2003,42(4):501-504,512.
[16]	冯凯,陈刚,罗敏学. 二次定位技术的应用[J]. 石油地球物理勘探,2006,41(3):346-349.FENG Kai,CHEN Gang,LUO Minxue. Application of secondary positioning technique[J]. Oil Geophysical Prospecting,2006,41(3):346-349.
[17]	王民,朱伟强,王明星. 炮点空间位置差异校正技术[J]. 海洋地质动态, 2010,26(7):50-54.WANG Min,ZHU Weiqiang,WANG Mingxing. Spatial location of shotpoint difference emendation technique[J]. Marine Geology Letters,2010,26(7):50-54.
[18]	张振宇. 折射波法检波器二次定位[J]. 西南石油学院学报,2005,27(2):22-24.ZHANG Zhenyu. The receiver secondary location using refraction wave method[J]. Journal of Southwest Petroleum Institute,2005,27(2):22-24.
[19]	曾湘轶,杨文艳.浅析海底电缆地震采集作业二次定位系统[J].石油地球物理勘探,2001,36(2):220-226.ZENG Xiangyi,YANG Wenyan. Brief analysis of se-condary positioning system in seismic sea-bottom cable acquisition[J]. Oil Geophysical Prospecting,2001,36(2):220-226.
[20]	徐维秀. 浅水域检波点自动重定位技术[J]. 石油地球物理勘探,2011,46(1):6-11.XU Weixiu. Automatic repositioning technique for shallow water receiver points[J]. Oil Geophysical Prospecting,2011,46(1):6-11.
[21]	徐钰. 基于初至波的高精度二次定位方法研究及软件开发[D]. 山东青岛:中国石油大学,2010.XU Yu. High Precision Secondary Positioning Me-thod Based on First-break Wave's Research and Software Development[D]. China University of Petroleum,Qingdao,Shandong,2010.
[22]	姜瑞林. 海底电缆地震采集系统:初至波二次定位成果的质量评价[J]. 石油地球物理勘探,1999,34(6):670-674,689.JIANG Ruilin. Seismic data acquisition system using ocean bottom cable:quality evaluation of first-break secondary positioning result[J]. Oil Geophysical Prospecting,1999,34(6):670-674,689.