黄骅坳陷孔南地区三角洲前缘储集层地震属性预测方法
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摘要
三角洲前缘亚相储集层横向变化较快,纵向非均质性强,如何提取三角洲前缘亚相储集层地震属性来描述其空间展布特征是三角洲前缘储集层预测的基础。以黄骅坳陷孔南地区地层发育特征为出发点,以已钻井资料为约束,优选出与已钻井资料匹配最好的地震均方根振幅及频率属性进行储集层预测,分析认为该地区有利储集层分布在G 984井—G 994井—G 40-62井一带以及G 36-80井以东区域。同时,通过对目的层段地层切片的提取与解释,对储集层展布规律及沉积演化特征进行分析,确定了油气有利评价地区。后经钻探证实,取得了较好的结果。
Horizontal changes are great for the reservoirs in delta front sub-facies,vertical heterogeneity is strong.How to extract the seismic attributes of the reservoirs in delta front sub-facies to describe their features of space distribution is a foundation to predict delta front reservoirs.Taking the developing features of strata in Kongnan area of Huanghua depression as a starting point,and the drilled data as con-straints,reservoir prediction was carried out by optimizing seismic RMS amplitude and frequency attributes,they best matched with drilling data.The analysis showed the favorable reservoirs distributed in the belt of wells G 984-G 994-G 40-62 and the east area of well G 36-80.At the same time,through the extraction and interpretation for strata slicing of the target intervals,the reservoir distribution and sedimentary evolution features were analyzed to determine the regions that were favorable to oil and gas evaluation.The drilling showed good results.
Horizontal changes are great for the reservoirs in delta front sub-facies,vertical heterogeneity is strong.How to extract the seismic attributes of the reservoirs in delta front sub-facies to describe their features of space distribution is a foundation to predict delta front reservoirs.Taking the developing features of strata in Kongnan area of Huanghua depression as a starting point,and the drilled data as con-straints,reservoir prediction was carried out by optimizing seismic RMS amplitude and frequency attributes,they best matched with drilling data.The analysis showed the favorable reservoirs distributed in the belt of wells G 984-G 994-G 40-62 and the east area of well G 36-80.At the same time,through the extraction and interpretation for strata slicing of the target intervals,the reservoir distribution and sedimentary evolution features were analyzed to determine the regions that were favorable to oil and gas evaluation.The drilling showed good results.
引文
[1]王开燕,徐清彦,张桂芳,等.地震属性分析技术综述[J].地球物理学进展,2013,28(2):815-823.
[2]陈恭洋,陈玲,朱洁琼,等.地震属性分析在河流相储层预测中的应用[J].西南石油大学学报(自然科学版),2012,34(3):1-8.
[3]黄云峰,杨占龙,郭精义,等.地震属性分析及其在岩性油气藏勘探中的应用[J].天然气地球科学,2006,17(5):739-742.
[4]Zeng Hongliu,Backus Milo M,Barraw Kenneth T,等.Stratal slicing,PartΙ:Realistic 3Dseismic model[J].Geophysics,1998,63(2):502-513.
[5]薛林福,孙晶,陈长伟,等.黄骅坳陷孔南地区孔一、孔二段构造沉积演化[J].沉积与特提斯地质,2008,28(2):62-68.
[6]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):30-33.
[7]严又生.地震属性及其分类[J].国外油气勘探,1997,9(4):529-530.
[8]高磊,明君,闫涛,等.地震属性综合分析技术在泥岩隔夹层识别中的应用[J].岩性油气藏,2013,25(4):101-105.
[2]陈恭洋,陈玲,朱洁琼,等.地震属性分析在河流相储层预测中的应用[J].西南石油大学学报(自然科学版),2012,34(3):1-8.
[3]黄云峰,杨占龙,郭精义,等.地震属性分析及其在岩性油气藏勘探中的应用[J].天然气地球科学,2006,17(5):739-742.
[4]Zeng Hongliu,Backus Milo M,Barraw Kenneth T,等.Stratal slicing,PartΙ:Realistic 3Dseismic model[J].Geophysics,1998,63(2):502-513.
[5]薛林福,孙晶,陈长伟,等.黄骅坳陷孔南地区孔一、孔二段构造沉积演化[J].沉积与特提斯地质,2008,28(2):62-68.
[6]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):30-33.
[7]严又生.地震属性及其分类[J].国外油气勘探,1997,9(4):529-530.
[8]高磊,明君,闫涛,等.地震属性综合分析技术在泥岩隔夹层识别中的应用[J].岩性油气藏,2013,25(4):101-105.
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