李维新^1,,
崔炯成²,
武文来³,
刘一峰⁴,
夏庆龙⁵,
石莹⁵,
江南森¹,
黄小刚¹,
张云鹏¹,
薛东川¹
1. 中海油研究总院有限责任公司, 北京 100028
2. 中国海洋石油国际有限公司, 北京 100027
3. 中联煤层气有限责任公司, 北京 100011
4. 中国海洋石油集团有限公司, 北京 100010
5. 中海石油化学股份有限公司, 北京 100010

基金项目: 中海油攻关项目"三维转换波地震处理关键技术研究和模块研制"（CRI2013RCPS0102CCN）和国家自然科学基金项目（41425017）的联合资助


详细信息

作者简介: 李维新, 教授级高工, 中海油研究总院工作, 主要从事海洋多分量地震处理技术的研发. E-mail: liwx1@cnooc.com.cn

中图分类号: P631

收稿日期:2017-06-08
修回日期:2018-01-30
上线日期:2018-03-05

State of the art and applications of the Multi-Component seismic processing technology in CNOOC

LI WeiXin^1,,
CUI JiongCheng²,
WU WenLai³,
LIU YiFeng⁴,
XIA QingLong⁵,
SHI Ying⁵,
JIANG NanSen¹,
HUANG XiaoGang¹,
ZHANG YunPeng¹,
XUE DongChuan¹
1. CNOOC Research Institute Co. Ltd., Beijing 100028, China
2. CNOOC International Limited, Beijing 100027, China
3. China United Coalbed Methane Corp. Ltd., Beijing 100011, China
4. China Narional Offshore Oil Corporation, Beijing 100010, China
5. China Bluechemical Ltd., Beijing 100010, China


MSC: P631

--> Received Date: 08 June 2017
Revised Date: 30 January 2018
Available Online: 05 March 2018


摘要
摘要:20世纪末中海油在南海油气勘探中成功试验了二维多分量地震技术.其后十多年，中海油进一步在不同近海油气盆地采集了三维多分量OBC地震资料.但由于针对三维转换波的处理未能形成有效的关键技术，除双检叠加利用了水压分量和陆检垂直分量外，大量水平分量数据未被使用.鉴于此，中海油在十二五期间开展三维多分量地震数据处理的关键技术攻关：针对弹性波场的矢量特征、转换波射线路径不对称以及双程旅行时多时间尺度等问题，成功研发了矢量化的信号处理技术、弹性波速度建模以及叠前时间偏移成像等技术；集成了相对完善的三维弹性波成像EWI软件系统；完成了多个试验区的三维四分量OBC地震转换波的处理，取得了好于以往技术的效果；建立了海上多分量OBC地震资料处理流程.但相对于成熟的纵波处理技术，海洋多分量地震处理技术仍需要不断完善与发展.
关键词: 多分量/
转换波/
矢量/
叠前时间偏/
EWI

Abstract:At the end of last century, 2D3C seismic technology was experimented successfully in Nanhai offshore gas-oil exploration by China National Offshore Oil Corporation (CNOOC). More than 10 years passed, CNOOC has further acquired 3D multi-component OBC seismic data in different offshore gas-oil basins. Except dual-sensor stacking of P and Z components, large amounts of horizontal component data don't be used due to the difficulties to process the 3D converted waves effectively. Consequently, CNOOC funded a key technical research about 3D multi-component seismic data processing in the periodof "12^th Five-Year Plan Project". Aiming at the problems caused by vector characteristic of seismic wave field, asymmetric ray path of the converted wave and multiple time-scale of two-way travel time, we have successfully developed techniques involved in the vectorization pre-processing, velocity modeling of the converted wave, pre-stacking time migration, and so on. Meanwhile, all these modules have been integrated into a relatively independent software system, elastic wave imaging (EWI). After successful 3D4C OBC seismic data processing in different areas, an applicable processing flow of marine 3D multi-component seismic data is established. While, compared with the matured P-wave processing technology, multi-component seismic processing technologies are still on the road of ongoing improvement.
Key words:Multi-component/
Converted waves/
Vector/
Pre-stack time migration/
EWI



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