基于坡印廷矢量的地震照明分析

doi:10.11978/2016082

Abstract

Abstract:

Research on seismic wave field decomposition and Gaussian de-noising and directional illumination in three- dimensional (3D) models will promote a wide application of seismic illumination based on the Poynting vector. In this paper, optimal angle illumination is found through obtaining the acquisition parameter by laying source in the target area, namely reversed illumination, then decomposing the wave field transmitting from best source position based on the Poynting vector, and using statistics on the energy of different angles. In addition, the de-noised wave filed obtained by Gaussian filter improves the stability and fidelity of wave field decomposition, which demonstrates the effectiveness of the method. Compared to the traditional ray-tracing illumination, illumination based on double way wave equation avoids high frequency approximation, whose information of wave field is more comprehensive compared with one-way wave equation and whose calculation is more efficient. With weighted de-noising, the fidelity and signal-to-noise ratio of the wave field are improved. Moreover, the method is developed in the 3D model to realize dip illumination and azimuth illumination. These results not only provide scientific basis for seismic observation system of complex 2D geological model, but also offer a base for future applications in optimization of 3D acquisition parameters, which is advantageous to promote applied domain of the Poynting vector.

Key words: seismic illumination, Poynting vector, Gaussian weighted method, directional decomposition

Xinming PANG, Minghui ZHAO, Min ZHANG, Guoquan YANG. Seismic illumination analysis based on the Poynting vector[J].Journal of Tropical Oceanography, 2017, 36(3): 86-93.

Figures/Tables 10

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

References 25

[1]	陈生昌, 马在田, 吴如山, 2007. 波动方程双程地下方向照明分析[J]. 同济大学学报(自然科学版), 35(5): 681-684, 704.
	CHEN SHENGCHANG, MA ZAITIAN, WU RUSHAN, 2007. Two-way subsurface directional illumination analysis by wave equation[J]. Journal of Tongji University (Natural Science), 35(5): 681-684, 704 (in Chinese).
[2]	董良国, 吴晓丰, 唐海忠, 等, 2006. 逆掩推覆构造的地震波照明与观测系统优化[J]. 石油物探, 45(1): 40-47.
	DONG LIANGGUO, WU XIAOFENG, TANG HAIZHONG, et al, 2006. Seismic wave illumination for overthrust nappe structures and optimal seismic survey design[J]. Geophysical Prospecting for Petroleum, 45(1): 40-47 (in Chinese).
[3]	冯伟, 王华忠, 吴如山, 等, 2004. 面向目标控制照明的合成波源偏移[J]. 石油物探, 43(3): 223-228.
	FENG WEI, WANG HUAZHONG, WU RUSHAN, et al, 2004. The migration of synthetic waves for target-oriented controlled illumination[J]. Geophysical Prospecting for Petroleum, 43(3): 223-228 (in Chinese).
[4]	雷涛, 顾汉明, 李列, 等, 2014. 面向目标靶区的双程波动方程地震定向照明分析[J]. 石油物探, 53(4): 437-443.
	LEI TAO, GU HANMING, LI LIE, et al, 2014. Target-oriented seismic directional illumination analysis based on two-way acoustic wave equation[J]. Geophysical Prospecting for Petroleum, 53(4): 437-443 (in Chinese).
[5]	李万万, 2008. 基于波动方程正演的地震观测系统设计[J]. 石油地球物理勘探, 43(2): 134-141.
	LI WANWAN, 2008. Design of seismic geometry based on wave equation forward simulation[J]. Oil Geophysical Prospecting, 43(2): 134-141 (in Chinese).
[6]	吕公河, 尹成, 周星合, 等, 2006. 基于采集目标的地震照明度的精确模拟[J]. 石油地球物理勘探, 41(3): 258-261.
	LYU GONGHE, YIN CHENG, ZHOU XINGHE, et al, 2006. Precious simulation of seismic illumination based on acquired targets[J]. Oil Geophysical Prospecting, 41(3): 258-261 (in Chinese).
[7]	裴正林, 2008. 波动方程地震定向照明分析[J]. 石油地球物理勘探, 43(6): 645-651.
	PEI ZHENGLIN, 2008. Analysis on wave equation seismic directional illumination[J]. Oil Geophysical Prospecting, 43(6): 645-651 (in Chinese).
[8]	秦广胜, 蔡其新, 汪功怀, 等, 2010. 基于叠前成像的三维地震观测系统设计[J]. 地球物理学进展, 25(1): 238-248.
	QIN GUANGSHENG, CAI QIXIN, WANG GONGHUAI, et al, 2010. 3D seismic geometry design based on pre-stack imaging[J]. Progress in Geophysics, 25(1): 238-248 (in Chinese).
[9]	孙伟家, 符力耘, 碗学检, 2007. 基于相位编码的地震照明度分析[J]. 石油地球物理勘探, 42(5): 539-543.
	SUN JIAWEI, FU LIYUN, WAN XUEJIAN, 2007. Phase encoding-based seismic illumination analysis[J]. Oil Geophysical Prospecting, 42(5): 539-543 (in Chinese).
[10]	孙伟家, 符力耘, 胡善政, 等, 2011. 基于相位编码的Fourier变换波动方程三维地震照明分析[J]. 地球物理学进展, 26(4): 1249-1257.
	SUN WEIJIA, FU LIYUN, HU SHANZHENG, et al, 2011. 3D Fourier transform wave-equation-based seismic illumination analysis with phase encoding[J]. Progress in Geophysics, 26(4): 1249-1257 (in Chinese).
[11]	温书亮, 尹成, 李绪宣, 等, 2011. 地震照明分析技术在深海地震数据采集设计中的应用[J]. 石油地球物理勘探, 46(4): 506-512.
	WEN SHULIANG, YIN CHENG, LI XUXUANG, et al, 2011. Seismic illumination method and its application in seismic geometry design in deep waters[J]. Oil Geophysical Prospecting, 46(4): 506-512 (in Chinese).
[12]	徐峰, 陈立, 苏悦, 等, 2012. 基于目的层反射能量二次导数的炮检距设计[J]. 西南石油大学学报(自然科学版), 34(2): 72-78.
	XU FENG, CHEN LI, SU YUE, et al, 2012. An offset design based on second derivative of target stratum energy[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 34(2): 72-78 (in Chinese).
[13]	杨敬磊, 李振春, 叶月明, 等, 2008. 地震照明叠前深度偏移方法综述[J]. 地球物理学进展, 23(1): 146-152.
	YANG JINGLEI, LI ZHENCHUN, YE YUEMING, et al, 2008. Review of seismic illumination pre-stack depth migration methods[J]. Progress in Geophysics, 23(1): 146-152 (in Chinese).
[14]	朱金平, 董良国, 程玖兵, 2011. 基于地震照明、面向勘探目标的三维观测系统优化设计[J]. 石油地球物理勘探, 46(3): 339-348.
	ZHU JINPING, DONG LIANGGUO, CHENG JIUBING, 2011. Target-oriented 3D seismic optimal geometry design based on seismic illumination[J]. Oil Geophysical Prospecting, 46(3): 339-348 (in Chinese).
[15]	JIN SHENGWEN, WALRAVEN D, 2003. Wave equation GSP prestack depth migration and illumination[J]. The Leading Edge, 22(7): 606-610.
[16]	LECOMTE I, GELIUS L J, 1998. Have a look at the resolution of prestack depth migration for any model, survey and wavefields[C]. New Orleans: SEG Technical Program Expanded Abstracts: 1112-1115.
[17]	LIU FAQI, STOLT R H, HANSON D W, et al, 2002. Plane wave source composition: an accurate phase encoding scheme for prestack migration[C]. Salt Lake City: SEG Technical Program Expanded Abstracts: 1156-1159.
[18]	LIU SHOUWEI, GENG JIANHUA, FENG WEI, 2005. Controlled illumination and seismic acquisition geometry for target-oriented imaging[J]. Applied Geophysics, 2(4): 230-234.
[19]	RICKETT J E, 2003. Illumination-based normalization for wave-equation depth migration[J]. Geophysics, 68(4): 1371-1379.
[20]	WU RUSHAN, CHEN LING, 2002. Mapping directional illumination and acquisition-aperture efficacy by beamlet propagators[C]. Salt Lake City: SEG Technical Program Expanded Abstracts: 1352-1355.
[21]	WU RUSHAN, CHEN LING, 2006. Directional illumination analysis using beamlet decomposition and propagation[J]. Geophysics, 71(4): S147-S159.
[22]	XIE XIAOBI, JIN SHENGWEN, WU RUSHAN, 2006. Wave-equation-based seismic illumination analysis[J]. Geophysics, 71(5): S169-S177.
[23]	XIE XIAOBI, YANG HUI, 2008. A full-wave equation based seismic illumination analysis method[C]. Rome: 70th conference & Exhibition, European Association of Geoscientists & Engineers, Extended Abstracts: 284.
[24]	YOON K, GUO MANHONG, CAI JUN, et al, 2011. 3D RTM angle gathers from source wave propagation direction and dip of reflector[C]. San Antonio: SEG Technical Program Expanded Abstracts: 3136-3140.
[25]	YOON K, MARFURT K J, 2006. Reverse-time migration using the Poynting vector[J]. Exploration Geophysics, 37(1): 102-107.

Seismic illumination analysis based on the Poynting vector

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 25

Related Articles 0

Metrics

Comments

Recommended 0