多属性微断裂解释技术

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摘要四川盆地九龙山地区侏罗系珍珠冲组砾岩段气藏为构造—岩性气藏,受构造、储层、裂缝等多因素控制,并受地震资料品质和解释思路的影响,应用地震剖面、常规相干体切片不能对微断裂进行精细刻画。文中在构造导向滤波的基础上联合运用谱分解、新-代相干体切片和体曲率技术,精细刻画了微断裂的空间展布规律,说明多属性微断裂识别技术是可靠的断裂识别手段,其中体曲率属性对断层及微断裂的刻画更为清晰。野外地质考察及最新钻、测井资料的验证结果表明,珍珠冲组砾岩段微断裂十分发育,以北东、北西向为主。

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	纪学武
	彭忻
	臧殿光
	张延庆
	聂刚
	徐宝亮
	黄川丽

关键词 ：四川盆地, 珍珠冲组砾岩段, 微断裂, 构造导向滤波, 相干, 谱分解, 体曲率

Abstract：In Jiulongshan area of Sichuan Basin,the gas reservoirs of conglomerate section in Jurassic Zhenzhuchong formation are structural-lithologic,controlled by structure,reservoir,fracture,and other factors.Due to seismic data quality,micro-fault cannot be subtly depicted by traditional ways on seismic sections and conventional coherence slices.With structure-oriented filter,we use spectrum decomposition,new generation coherence slices and volumetric curvature technology to subtly depict spatial distributions of micro-faults.The results indicate that multiple attribute method is reliable for the micro-fault interpretation,and volumetric curvature attribute is more effective for micro-fault delineation.

Key words： Sichuan Basin conglomerate section in Jusassic Zhenzhuchong formation micro-fault structure-oriented filter coherence spectrum decomposition volumetric curvature

收稿日期: 2011-03-07

PACS:	P618.13
	P631.44

通讯作者: 纪学武,E-mail:sczx20099@sina.com E-mail: sczx20099@sina.com

引用本文:

纪学武, 彭忻, 臧殿光, 张延庆, 聂刚, 徐宝亮, 黄川丽. 多属性微断裂解释技术[J]. 石油地球物理勘探, 2011, 46(增刊1): 117-120. Ji Xue-wu, Peng Xin, Zang Dian-guang, Zhang Yan-qing, Nie Gang, Xu Bao-liang, Huang Chuan-li. Micro-fault interpretation by multiple attributes. OGP, 2011, 46(增刊1): 117-120.

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http://www.ogp-cn.com/CN/ 或 http://www.ogp-cn.com/CN/Y2011/V46/I增刊1/117