QT地区层间多次波识别与压制方法

doi:10.13809/j.cnki.cn32-1825/te.2020.06.019

油气藏评价与开发 ›› 2020, Vol. 10 ›› Issue (6): 121-125.doi: 10.13809/j.cnki.cn32-1825/te.2020.06.019

QT地区层间多次波识别与压制方法

刘田田(),薛野,唐新媛,王海峰

中国石化华东油气分公司勘探开发研究院,江苏南京 210000

收稿日期:2019-06-24 出版日期:2020-12-26 发布日期:2021-01-07
作者简介:刘田田（1987—）,女,硕士,工程师,从事地震资料处理工作。地址：江苏省南京市建邺区江东中路375号金融城9号楼,邮政编码：210000。E-mail: liutiantian.18@163.com
基金资助:
国家科技重大专项任务“溱潼-海安凹陷区页岩油资源潜力与地质评价研究”(2017ZX05049001-004);中国石化科技重大专项“东部探区油气聚集规律与精细评价关键技术”(P17013)

The identification and suppression methods of internal multiples in QT area

LIU Tiantian(),XUE Ye,TANG Xinyuan,WANG Haifeng

Research Institute of Exploration and Development, Sinopec East China Oil and Gas Company, Nanjing, Jiangsu 210000, China

Received:2019-06-24 Online:2020-12-26 Published:2021-01-07

摘要/Abstract

摘要：

QT地区层间多次波发育,干扰有效信号,导致地震资料信噪比降低,影响成像精度。该区层间多次波与一次地震波的波组特征相似,且剩余时差较小,导致其压制困难,因此,成为制约精细勘探的难点之一。基于层间多次波与一次波的差异,首先从CMP（共中心点）道集、速度谱、叠加剖面等方面综合分析多次波的特点,确定其来源、速度及存在范围,然后采用高精度Radon变换法对多次波进行压制。实际应用表明,高精度Radon变换法对QT地区地震资料中的层间多次波具有较好的压制效果,对提高该区地震资料成像精度具有重要意义。

关键词: 层间多次波, 识别, 压制, 高精度Radon变换, QT地区, CMP道集

Abstract:

The internal multiples are very developed in seismic data of QT area, which interfere with the effctive signal, reduce the signal-to-noise ratio and affect the imaging accuracy. In this area, the internal multiples and the primary wave are similar in the characteristics of the wave group, and the remaining time difference is small. This similarity makes it difficult for suppression. Therefore, the internal multiple has become one of the difficulties that constrain the fine exploration in this area. Based on the difference between internal multiple and primary waves, firstly, the characteristics of the internal multiple are analyzed from various aspects such as CMP gathers, velocity spectrum and stack section to determine the origin, speed and range. Then, the high-precision Radon transform method is adopted to suppress the multiples. The practical application shows that the high-precision Radon transform method gives a good suppression effect on the internal multiples in the seismic data of QT area, which has great significance to improve the imaging accuracy of seismic data in this area.

Key words: internal multiple, identification, suppression, high-precision Radon transform, QT area, CMP gathers

中图分类号:

P631.4

刘田田,薛野,唐新媛,王海峰. QT地区层间多次波识别与压制方法[J]. 油气藏评价与开发, 2020, 10(6): 121-125.

LIU Tiantian,XUE Ye,TANG Xinyuan,WANG Haifeng. The identification and suppression methods of internal multiples in QT area[J]. Reservoir Evaluation and Development, 2020, 10(6): 121-125.

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参考文献 13

[1]	苑益军, 张锐锋. 陆上地震数据多次波压制策略[J]. 现代地质, 2012,26(6):1237-1243.
	YUAN Y J, ZHANG R F. Multiple suppression strategies on land seismic data[J]. Geoscience, 2012,26(6):1237-1243.
[2]	王维红, 刘洪. 抛物Radon变换法近偏移距波场外推[J]. 地球物理学进展, 2005,20(2):289-293.
	WANG W H, LIU H. Near offset wavefield extrapolation based on parabolic Radon transform[J]. Progress in Geophysics, 2005,20(2):289-293.
[3]	鲁娥, 李振春. 混合Radon变换地震噪声压制的应用[J]. 物探与化探, 2013,37(4):706-710. doi: 10.11720/j.issn.1000-8918.2013.4.24
	LU E, LI Z C. The application of seismic noise at tenuation based on hybrid Radon transform[J]. Geophysical and Geochemical Exploration, 2013,37(4):706-710. doi: 10.11720/j.issn.1000-8918.2013.4.24
[4]	张军华, 吕宁, 雷凌, 等. 抛物线拉冬变换消除多次波的应用要素分析[J]. 石油地球物理勘探, 2004,39(4):398-405.
	ZHANG J H, LYU N, LEI L, et al. Analysis of applied factors for using parabolic radon transform to remove multiple[J]. Oil Geophysical Prospecting, 2004,39(4):398-405.
[5]	王彦江. 多次波压制方法及应用研究[D]. 北京:中国地质科学院, 2009.
	WANG Y J. Multiple wave suppression method and its application[D]. Beijng: Chinese Academy of Geological Sciences, 2009.
[6]	吕进英, 郭磊. 地震勘探中多次波的识别和压制[J]. 中州煤炭, 2011,33(4):29-31.
	LYU J Y, GUO L. Identification and suppression of multiple waves in seismic exploration[J]. Zhongzhou Coal, 2011,33(4):29-31.
[7]	张宇飞, 苑昊. 陆上多次波识别与压制[J]. 岩性油气藏, 2015,27(6):104-110.
	ZHANG Y F, YUAN H. Recognition and attenuation of multiples in land seismic data[J]. Lithologic Reservoirs, 2015,27(6):104-110.
[8]	王汝珍. 多次波识别与衰减[J]. 勘探地球物理进展, 2003,26(5):423-432.
	WANG R Z. Recognition and suppression of multiple waves[J]. Progress in Exploration Geophysics, 2003,26(5):423-432.
[9]	徐照营. 车排子地区近地表多次波特征及压制方法[J]. 石油物探, 2014,53(4):412-420.
	XU Z Y. Study on the characteristics of near-surface multiple and its suppression method in Chepaizi area[J]. Geophysical Prospecting for Petroleum, 2014,53(4):412-420.
[10]	侯伟丽, 刘洪林, 刘云鑫, 等. 多次波压制方法及优化组合压制技术研究[J]. 内陆地震, 2015,29(2):122-128.
	HOU W L, LIU H L, LIU Y X, et al. Study on multiple suppression methods and optimum combination suppression technique[J]. Inland Earthquake, 2015,29(2):122-128.
[11]	武克奋. 双向预测法压制线性干扰波和多次波[J]. 石油物探, 2005,44(5):458-460.
	WU K F. Strong linear interferences and multiples suppression based on dual prediction model[J]. Geophysical Prospecting for Petroleum, 2005,44(5):458-460.
[12]	邱新明, 汪超, 苑益军, 等. Radon变换及其在地震矢量数据处理中的应用研究现状[J]. 石油物探, 2017,56(6):905-914.
	QIU X M, WANG C, YUAN Y J, et al. Research status of the application of Radon transform in seismic vector field processing[J]. Geophysical Prospecting for Petroleum, 2017,56(6):905-914.
[13]	刘学通. 基于高分辨率Radon变换的多次波压制方法研究[D]. 青岛:中国石油大学(华东), 2014.
	LIU X T. Study on multi-wave suppression method based on high resolution Radon transform[D]. Qingdao: China University of Petroleum (East China), 2014.

QT地区层间多次波识别与压制方法

The identification and suppression methods of internal multiples in QT area

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