东沙海域复杂海况下单源单缆长排列地震资料处理*

doi:10.11978/2019097

Abstract

Abstract: Aim

ing at the characteristics of seismic data collected by single-source, single-cable, long-array under complex sea conditions of the Dongsha sea area for the first time, we propose an optimal technical solution for processing this kind of data. We have achieved good results in removing various noise interferences and different types of multiple-wave interferences, especially the severe interference of marine turbulence in the survey area. Under the premise of amplitude-preserving treatment, the bubble is suppressed, the wavelet is compressed, and the resolution of the seismic data is improved. Using high-density velocity analysis, we performed anisotropic bi-spectral non-hyperbolic move-out correction, making the wave group features and amplitude characteristics more obvious. Through reasonable regularization of bins, the coverage folds are uniform and the lateral resolution is improved. For the densely-distributed 2D seismic data, a 3D pre-stack time migration processing method is adopted. In this study, the single-source, single-cable, long-streamer, seismic data with severe noise interference are processed in the way of 3D seismic data processing. The processing highlights the effective information from the shallow to deep, especially the imaging quality improvement for the Mesozoic. More obviously, a set of effective processing procedures has been formed, which provides a technical basis for exploration and data processing in the adjacent areas in the future, and also provides a scientific basis for oil and gas exploration and evaluation of the Dongsha sea area.

Key words: Dongsha area, single-source,single-cable and long-array, Mesozoic, seismic data, data processing

CLC Number:

P736.15

Tao XING, Wenhuan ZHAN, Fuyuan LI, Xi CHEN. Single-source, single-cable, long-array, seismic data processing in complex sea conditions of Dongsha sea area[J].Journal of Tropical Oceanography, 2020, 39(4): 91-99.

Figures/Tables 12

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References 28

[1]	邓桂林, 2014. 组合方法压制多次波在南海某工区的应用[J]. 工程地球物理学报, 11(5):630-634
	DENG GUILIN, 2014. The combination method to attenuate multiples in marine seismic data[J]. Chinese Journal of Engineering Geophysics, 11(5):630-634 (in Chinese with English abstract).
[2]	邓桂林, 丁龙翔, 李福元, 等. 2019. 海洋长排列单源单缆准三维窄方位地震资料处理技术[J]. 物探与化探, 43(4):828-834.
	DENG GUILIN, DING LONGXIANG, LI FUYUAN, et al. 2019. The processing technology of narrow azimuth Quasi three–dimensional seismic data acquisition by single source and single long streamer system in marine seismic exploration[J]. Geophysical and Geochemical Exploration, 43(4):828-834 (in Chinese with English abstract).
[3]	丁龙翔, 李福元, 张宝金, 2016. 南海北部某区块地震资料处理关键技术[J]. 工程地球物理学报, 13(4):491-495.
	DING LONGXIANG, LI FUYUAN, ZHANG BAOJIN, 2016. Key techniques of seismic data processing in one block of northern South China Sea[J]. Chinese Journal of Engineering Geophysics, 13(4):491-495 (in Chinese with English abstract).
[4]	郭梦秋, 赵彦良, 左胜杰, 等, 2012. 海上地震资料处理中的组合压制多次波技术[J]. 石油地球物理勘探, 47(4):537-544.
	GUO MENGQIU, ZHAO YANLIANG, ZUO SHENGJIE, et al, 2012. Combined multiple attenuation in marine seismic data processing[J]. Oil Geophysical Prospecting, 47(4):537-544 (in Chinese with English abstract).
[5]	郝沪军, 林鹤鸣, 杨梦雄, 等, 2001. 潮汕坳陷中生界--油气勘探的新领域[J]. 中国海上油气, 15(3):157-163.
	HAO HUJUN, LIN HEMING, YANG MENGXIONG, et al, 2001. The Mesozoic in Chaoshan depression: a new domain of petroleum exploration[J]. China Offshore Oil and Gas (Geology), 15(3):157-163 (in Chinese with English abstract).
[6]	郝沪军, 施和生, 张向涛, 等, 2009. 潮汕坳陷中生界及其石油地质条件--基于LF35-1-1探索井钻探结果的讨论[J]. 中国海上油气, 21(3):151-156.
	HAO HUJUN, SHI HESHENG, ZHANG XIANGTAO, et al, 2009. Mesozoic sediments and their petroleum geology conditions in Chaoshan sag: a discussion based on drilling results from the exploratory well LF35-1-1[J]. China Offshore Oil and Gas, 21(3):151-156 (in Chinese with English abstract).
[7]	胡卫剑, 江为为, 郝天珧, 等, 2011. 南海前新生代残留盆地分布综合地球物理研究[J]. 地球物理学报, 54(12):3315-3324.
	HU WEIJIAN, JIANG WEIWEI, HAO TIANYAO, et al, 2011. Integrated geophysical research on the distribution of Pre-Cenozoic residual basins in the South China Sea[J]. Chinese Journal of Geophysics, 54(12):3315-3324 (in Chinese with English abstract).
[8]	黄妍丹, 许洁馨, 刘军亮, 等, 2018. 基于实测资料的南海北部台风“海鸥”致近惯性振荡研究[J]. 热带海洋学报, 37(6):16-25.
	HUANG YANDAN, XU JIEXIN, LIU JUNLIANG, et al, 2018. A study of near-inertial oscillations in the northern South China Sea based on in-situ observations during the passage of Typhoon Kalmaegi[J]. Journal of Tropical Oceanography, 37(6):16-25 (in Chinese with English abstract).
[9]	丘学林, 赵明辉, 徐辉龙, 等, 2012. 南海深地震探测的重要科学进程: 回顾和展望[J]. 热带海洋学报, 31(3):1-9.
	QIU XUELIN, ZHAO MINGHUI, XU HUILONG, et al, 2012. Important processes of deep seismic surveys in the South China Sea: Retrospection and expectation[J]. Journal of Tropical Oceanography, 31(3):1-9 (in Chinese with English abstract).
[10]	施剑, 刘江平, 陈刚, 等, 2017. 陆架浅水区自由表面多次波压制方法[J]. 地球物理学进展, 32(2):902-910.
	SHI JIAN, LIU JIANGPING, CHEN GANG, et al, 2017. Surface-related multiple suppression in the shallow water area of continental shelf[J]. Progress in Geophysics, 32(2):902-910 (in Chinese with English abstract).
[11]	王国纯, 1994. 中国东部海域中生界地质特征及含油气前景[J]. 中国海上油气(地质), 8(2):91-98.
	WANG GUOCHUN, 1994. Geological characteristics and hydrocarbon potential of Mesozoic in eastern China offshore[J]. China Offshore Oil and Gas (Geology), 8(2):91-98 (in Chinese with English abstract).
[12]	吴仕虎, 2014. 南海北部中生代陆缘海盆地沉积演化过程[D]. 成都: 成都理工大学. 1-103.
	WU SHIHU, 2014. Depositional process for the Mesozoic epicontinental marine basin in Northern South China Sea[D]. Chengdu: Chengdu University of Technology, 1-103 (in Chinese with English abstract).
[13]	夏戡原, 黄慈流, 2000. 南海中生代特提斯期沉积盆地的发现与找寻中生代含油气盆地的前景[J]. 地学前缘, 7(3):227-238.
	XIA KANYUAN, HUANG CILIU, 2000. The discovery of Meso-Tethys sedimentary basins in the South China Sea and their oil and gas perspective[J]. Earth Science Frontiers, 7(3):227-238 (in Chinese with English abstract).
[14]	邢涛, 陈宏文, 张宝金, 2015. 西沙海域天然气水合物地震资料高密度双谱速度分析技术探讨[J]. 海洋与湖沼, 46(2):272-277.
	XING TAO, CHEN HONGWEN, ZHANG BAOJIN, 2015. High-density bispectral velocity analysis on gas hydrates seismic data processing in Chinese maritime Xisha, South China Sea[J]. Oceanologia et Limnologia Sinica, 46(2):272-277 (in Chinese with English abstract).
[15]	熊忠, 张敏强, 高顺莉, 等, 2016. 南黄海中、古生界地震波场反射特征模拟与采集技术攻关[J]. 地球物理学进展, 31(5):2172-2180.
	XIONG ZHONG, ZHANG MINQIANG, GAO SHUNLI, et al, 2016. Seismic wave field simulation for reflection characteristics and technology study on seismic acquisition of Mesozoic-Paleozoic in the South Yellow Sea[J]. Progress in Geophysics, 31(5):2172-2180 (in Chinese with English abstract).
[16]	徐华宁, 舒虎, 李丽青, 等, 2009. 单源单缆方式采集的天然气水合物三维地震数据处理技术[J]. 地球物理学进展, 24(5):1801-1806.
	XU HUANING, SHU HU, LI LIQING, et al, 2009. 3-D seismic data processing techniques for gas hydrate by the single-source and single-cable acquisition method[J]. Progress in Geophysics, 24(5):1801-1806 (in Chinese with English abstract).
[17]	阎贫, 王彦林, 郑红波, 2011. 南海北部白云凹陷-东沙岛西南海区的浅地层探测与深水沉积特点[J]. 热带海洋学报, 30(2):115-122.
	YAN PIN, WANG YANLIN, ZHENG HONGBO, 2011. Characteristics of deep water sedimentation revealed by sub-bottom profiler survey over the Baiyun Sag-Southwest Dongsha Island Waters in the northern South China Sea[J]. Journal of Tropical Oceanography, 30(2):115-122 (in Chinese with English abstract).
[18]	杨少坤, 林鹤鸣, 郝沪军, 2002. 珠江口盆地东部中生界海相油气勘探前景[J]. 石油学报, 23(5):28-33.
	YANG SHAOKUN, LIN HEMING, HAO HUJUN, 2002. Oil and gas exploration prospect of Mesozoic in the eastern part of pearl river mouth basin[J]. Acta Petrolei Sinica, 23(5):28-33 (in Chinese with English abstract).
[19]	姚伯初, 曾维军, 陈艺中, 等, 1995. 南海北部陆缘东部中生代沉积的地震反射特征[J]. 海洋地质与第四纪地质, 15(1):81-90.
	YAO BOCHU, ZENG WEIJUN, CHEN YIZHONG, et al, 1995. Seismic reflective characteristics of Mesozoic sediments on the eastern continental margin in the northern of the South China Sea[J]. Marine Geology & Quaternary Geology, 15(1):81-90 (in Chinese with English abstract).
[20]	张浩, 邵磊, 张功成, 等, 2015. 南海始新世海相地层分布及油气地质意义[J]. 地球科学—中国地质大学学报, 40(4):660-670.
	ZHANG HAO, SHAO LEI, ZHANG GONGCHENG, et al, 2015. Distribution and petroleum geologic significance of Eocene marine strata in the South China Sea[J]. Earth Science—Journal of China University of Geosciences, 40(4):660-670 (in Chinese with English abstract).
[21]	张莉, 2010. 南海北部中生界形成演化模式及其与中生界分布、油气地质条件关系研究[D]. 广州: 中山大学.
	ZHANG LI, 2010. Formation and evolution patterns of Mesozoic in the northern South China Sea and their relationship with Mesozoic distribution and oil and gas geology[D]. Guangzhou: Sun Yat-sen University (in Chinese with English abstract).
[22]	张连群, 陈宝书, 李松康, 等, 2018. 白云凹陷陆架—陆坡区多次波压制技术[J]. 石油地球物理勘探, 53(2):236-242.
	ZHANG LIANQUN, CHEN BAOSHU, LI SONGKANG, et al, 2018. Multiple suppression in continental shelf and slope areas of Baiyun depression[J]. Oil Geophysical Prospecting, 53(2):236-242 (in Chinese with English abstract).
[23]	张旭东, 文鹏飞, 徐云霞, 等, 2015. 双源单缆方式采集的天然气水合物三维地震数据采集脚印分析与压制处理[J]. 海洋地质前沿, 31(9):55-61.
	ZHANG XUDONG, WEN PENGFEI, XU YUNXIA, et al, 2015. Footprint analysis and suppress processing of dual-source and single cable 3D seismic data for gas hydrate[J]. Marine Geology Frontiers, 31(9):55-61 (in Chinese with English abstract).
[24]	赵旭, 阎贫, 王彦林, 等, 2016. 东沙西南海区泥火山的分布及其物质来源层位[J]. 热带海洋学报, 35(5):88-96.
	ZHAO XU, YAN PIN, WANG YANLIN, et al, 2016. The distribution and provenance strata of mud volcanoes in the waters southwest of the Dongsha Islands[J]. Journal of Tropical Oceanography, 35(5):88-96 (in Chinese with English abstract).
[25]	郑红波, 阎贫, 王彦林, 2014. 南海南部礼乐海区二维地震资料的高分辨率处理方法[J]. 热带海洋学报, 33(5):67-73.
	ZHENG HONGBO, YAN PIN, WANG YANLIN, 2014. High-resolution processing methods for multi-channel reflection seismic data of Lile sea area in the southern South China Sea[J]. Journal of Tropical Oceanography, 33(5):67-73 (in Chinese with English abstract).
[26]	周蒂, 孙珍, 陈汉宗, 等, 2005. 南海及其围区中生代岩相古地理和构造演化[J]. 地学前缘, 12(3):204-218.
	ZHOU DI, SUN ZHEN, CHEN HANZONG, et al, 2005. Mesozoic lithofacies, paleo-geography, and tectonic evolution of the South China Sea and surrounding areas[J]. Earth Science Frontiers, 12(3):204-218 (in Chinese with English abstract).
[27]	周庆杰, 2015. 南海北部陆坡白云凹陷区海底滑坡的识别与特征分析[D]. 青岛: 国家海洋局第一海洋研究所.
	ZHOU QINGJIE, 2015. Identification of submarine landslides and characteristics analysis in the Baiyun Sag of the South China Sea northern slope[D]. Qingdao: First Institute of Oceanography,Ministry of Natural Resources (in Chinese with English abstract).
[28]	周洋, 刘海龄, 朱荣伟, 等, 2016. 南海北部陆缘古双峰-笔架碰撞造山带空间展布特征[J]. 海洋地质与第四纪地质, 36(4):77-84.
	ZHOU YANG, LIU HAILING, ZHU RONGWEI, et al, 2016. Spatial distribution of ancient Shuangfeng-Bijia orogen on northern continental margin of South China Sea[J]. Marine Geology & Quaternary Geology, 36(4):77-84 (in Chinese with English abstract).

地震采集参数	参数值
接收道数/道	480
道间距/m	12.5
覆盖次数/次	120
炮间距/m	25
采样率/ms	2
记录长度/s	8
震源容量/cu.in.	5080
工作压力/psi.	2000
最小偏移距/m	175
原始面元大小	25m(纵向)×100m(横向)

Single-source, single-cable, long-array, seismic data processing in complex sea conditions of Dongsha sea area

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