地震属性综合分析技术在泥岩隔夹层识别中的应用
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摘要
渤中26油田4-1992砂体中泥岩隔夹层的发育影响了对该砂体的高效开发。为了预测研究区泥岩隔夹层的横向分布范围,在精细分析该区隔夹层地球物理响应特征的基础上,采用地层切片技术与地震属性分析相结合的方法,对该区隔夹层的成因进行了细致分析;在用不同的属性计算方法进行多种实验分析后,优选了均方根振幅、负振幅之和以及能量半衰时3种地震属性,并采用地震属性聚类分析的综合研究思路,对研究区隔夹层的横向分布范围进行了识别与刻画。通过分析认为,研究区泥岩隔夹层主要发育在砂体的中部,并呈现出不稳定的横向分布特点。该研究思路对其他复杂断块油田隔夹层的识别与刻画具有一定的借鉴意义,也为类似油田的高效开发提供了技术保证。
The development of mudstone interbeds affected the high-efficiency development of sand 4-1992 in Bozhong 26 oilfield of Bohai. In order to predict the lateral distribution of mudstone interbeds, we used the method of integrative analysis of strata slice and seismic attributes to study the interbeds genesis based on the fine analysis of interbeds geophysical response. Based on the different seismic attributes calculation methods for several experimental analyses, we optimized three kinds of seismic attributes: RMS amplitude, sum negative amplitude and energy half time. We used the method of seismic attributes cluster analysis to identify and depict the lateral distribution of interbeds. It is considered that mudstone interbeds in the study area are mainly developed in the central part of sand body and presents unstable transverse distribution characteristics. This research idea has certain referential significance for identifying and characterizing the interbeds in complex fault block oilfield, and can provide technical assurance for the efficient development of similar oilfields.
The development of mudstone interbeds affected the high-efficiency development of sand 4-1992 in Bozhong 26 oilfield of Bohai. In order to predict the lateral distribution of mudstone interbeds, we used the method of integrative analysis of strata slice and seismic attributes to study the interbeds genesis based on the fine analysis of interbeds geophysical response. Based on the different seismic attributes calculation methods for several experimental analyses, we optimized three kinds of seismic attributes: RMS amplitude, sum negative amplitude and energy half time. We used the method of seismic attributes cluster analysis to identify and depict the lateral distribution of interbeds. It is considered that mudstone interbeds in the study area are mainly developed in the central part of sand body and presents unstable transverse distribution characteristics. This research idea has certain referential significance for identifying and characterizing the interbeds in complex fault block oilfield, and can provide technical assurance for the efficient development of similar oilfields.
引文
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[15]王长江,刘书会,穆星.提高地震属性分析精度的方法及其应用[J].石油物探,2004,43(增刊):112-114.
[16]侯伯刚,杨池银,武站国,等.地震属性及其在储层预测中的影响因素[J].石油地球物理勘探,2004,39(5):553-558.
[2]王健,徐守余,仲维苹.河流相储层隔夹层成因及其分布特征[J].地质科技情报,2010,29(4):84-88.
[3]赵鹤森,陈义才,唐波,等.鄂尔多斯盆地定边地区长2储层非均质性研究[J].岩性油气藏,2011,23(4):70-74.
[4]夏同星,李英,黄江波.渤南地区河流相油田开发地震研究[J].石油钻采工艺,2009,31(增刊1):39-43.
[5]李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,1994:83-90.
[6]印兴耀,周静毅.地震属性优化方法综述[J].石油地球物理勘探,2005,40(4):482-489.
[7]王永刚,谢东,乐友喜,等.地震属性分析技术在储层预测中的应用[J].石油大学学报:自然科学版,2003,27(3):30-32.
[8]吕复苏,黄小平,任涛.地震属性信息在砂砾岩油藏开发中的应用——以克拉玛依油田上二叠统上乌尔禾组油藏为例[J].新疆石油地质,2003,24(4):310-312.
[9]周宗良,肖建玲,张枫.地震属性的优化处理及储层厚度的定量解释[J].新疆地质,2002,20(3):262-266.
[10]Chen Q,Sidney S.Seismic attribute technology for reservoir forecas-ting and monitoring[J].The Leading Edge,1997,16(5):445-456.
[11]洪余刚,赵华,梁波,等.利用地震属性聚类分析技术预测辽河油田有利油气聚集带[J].西安石油大学学报:自然科学版,2007,22(4):35-39.
[12]王利田,苏小军,管仁顺,等.地震属性分析在彩16井区储层预测中的应用[J].地球物理学进展,2006,21(3):922-925.
[13]胡玉双,孙丽梅,杨志会,等.地层切片技术在深水湖底扇识别中的应用——以松辽盆地北部英台大安地区青山口组一段为例[J].科学技术与工程,2010,10(21):5230-5232.
[14]林承焰,张宪国,董春梅.地震沉积学及其初步应用[J].石油学报,2007,28(2):69-72.
[15]王长江,刘书会,穆星.提高地震属性分析精度的方法及其应用[J].石油物探,2004,43(增刊):112-114.
[16]侯伯刚,杨池银,武站国,等.地震属性及其在储层预测中的影响因素[J].石油地球物理勘探,2004,39(5):553-558.
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