地球物理技术在珠江口盆地番禺低隆起天然气勘探中的应用
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摘要
番禺低隆起~白云凹陷北坡地区是珠江口盆地最有利的油气勘探区域之一,目前已经发现了PY30-1、PY34-1、PY35-2、PY35-1和LH19-5等五个气田,天然气地质储量达1 200×108m3。如何在现有的勘探成果基础上进一步拓展勘探领域,对珠江口盆地东部天然气勘探的持续发展有着重要的意义。这里在依托番禺低隆起三维地震资料的前提下,以钻井、测井、地震等原始资料为基础,对本区的岩性电性特征进行分析,进而确定储层含气后在地震属性、AVO、瞬时子波吸收、波阻抗等资料上的响应特征,从而综合运用属性、子波吸收、AVO、反演、圈闭保存条件等多种手段,对目标圈闭的含油气性及储层进行预测。
The north slope of Panyu low uplift is one of most favorable oil and gas accumulation zones of Pear River mouth basin. Five gas fields have been discovered by far in this area which are PY30-1、 PY34- 1、 PY35-2、PY35-1 and LH19-5 gas fields. The OGIP is about 120 billion cubic meters. How to extend new oil and gas exploration areas on the basis of current exploratory results is significant for the sustainable development of the natural gas exploration in Pearl River mouth basin. In this paper, we analyze the lithology and its electric property combination characteristics on the basis of 3D seismic data and drilling, well log data, then we determine hydrocarbon potential of sandstone reservoir through seismic attributes, AVO inversion, impedance inversion, and instantaneous wavelet absorption. According to these results, we can summarize a set of geophysical methods to predict
gasbearing properties of reservoir and to evaluate potential prospects.
The north slope of Panyu low uplift is one of most favorable oil and gas accumulation zones of Pear River mouth basin. Five gas fields have been discovered by far in this area which are PY30-1、 PY34- 1、 PY35-2、PY35-1 and LH19-5 gas fields. The OGIP is about 120 billion cubic meters. How to extend new oil and gas exploration areas on the basis of current exploratory results is significant for the sustainable development of the natural gas exploration in Pearl River mouth basin. In this paper, we analyze the lithology and its electric property combination characteristics on the basis of 3D seismic data and drilling, well log data, then we determine hydrocarbon potential of sandstone reservoir through seismic attributes, AVO inversion, impedance inversion, and instantaneous wavelet absorption. According to these results, we can summarize a set of geophysical methods to predict
gasbearing properties of reservoir and to evaluate potential prospects.
引文
[1]车卓吾.测井资料分析手册[M].北京:石油工业出版社,1995.
[2]孙家振.多信息储层预测和油气判别[M].武汉:中国地质大学出版社,1997.
[3]武文来,印兴耀.岩石物理参数与地球物理特征关系研究[J].石油物探,2008,47(3):235.
[4]刘震.储层地震地层学[M].北京:地质出版社,1997.
[5]朱广生.地震资料储层预测方法[M],北京:石油工业出版社,1995.
[6]陆基孟.地震勘探原理[M].东营:石油大学出版社,1993.
[7]殷八斤,曾灏,杨在岩.AVO技术的理论和实践[M].北京:石油工业出版,1995.
[8]CASTAGNA J P,HERBERT W S,DOUGLAS J F.Framework for AVO gradient and intercept interpretation[J].Geophysics,1998,63:948.
[9]黄凯,杨晓海,徐群洲,等.岩石弹性参数实验室模拟测试与AVO碳烃检测[J].新疆石油地质,1997,6(2):119.
[10]黄凯,徐群洲,杨晓海,等.地震波能量的衰减及其影响因素[J].新疆石油地质,1997,9(3):212.
[2]孙家振.多信息储层预测和油气判别[M].武汉:中国地质大学出版社,1997.
[3]武文来,印兴耀.岩石物理参数与地球物理特征关系研究[J].石油物探,2008,47(3):235.
[4]刘震.储层地震地层学[M].北京:地质出版社,1997.
[5]朱广生.地震资料储层预测方法[M],北京:石油工业出版社,1995.
[6]陆基孟.地震勘探原理[M].东营:石油大学出版社,1993.
[7]殷八斤,曾灏,杨在岩.AVO技术的理论和实践[M].北京:石油工业出版,1995.
[8]CASTAGNA J P,HERBERT W S,DOUGLAS J F.Framework for AVO gradient and intercept interpretation[J].Geophysics,1998,63:948.
[9]黄凯,杨晓海,徐群洲,等.岩石弹性参数实验室模拟测试与AVO碳烃检测[J].新疆石油地质,1997,6(2):119.
[10]黄凯,徐群洲,杨晓海,等.地震波能量的衰减及其影响因素[J].新疆石油地质,1997,9(3):212.
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