东营凹陷小营油田沙二段砂体尖灭线地震描述技术
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摘要
小营地区沙二段主要储层类型为三角洲前缘席状砂,单层厚度薄,横向变化大,准确确定砂体边界是决定滚动勘探效果的关键因素之一。针对该区地震资料分辨率低、砂体尖灭线难以落实的问题,在小层对比、钻测井资料统计分析的基础上,通过频谱成像、相位属性分析等技术对主力含油砂体尖灭线进行精细描述,并结合实际钻井展开地质综合评价,取得了良好的开发效果。
The main reservoirs of second members of Shahejie formation in Xiaoying are delta front sheet sand.Because of thin layers and fast horizontal changes of sand,the determination of sand boundaries is the critical factor to succeed on the exploration.Aiming at the exploration difficulties of low resolution of seismic data and the indeterminacy of sand pinchout lines,this paper goes on the fine descriptions for the main oil-bearing sandstone pinchout line through the spectral imaging and phase attribute analysis on the basis of the substratum correlation and statistical analysis of drilling.And the comprehensive geological evaluation is undergone in conjunction with the actual drilling comments.Thus,the good development results are achieved.
The main reservoirs of second members of Shahejie formation in Xiaoying are delta front sheet sand.Because of thin layers and fast horizontal changes of sand,the determination of sand boundaries is the critical factor to succeed on the exploration.Aiming at the exploration difficulties of low resolution of seismic data and the indeterminacy of sand pinchout lines,this paper goes on the fine descriptions for the main oil-bearing sandstone pinchout line through the spectral imaging and phase attribute analysis on the basis of the substratum correlation and statistical analysis of drilling.And the comprehensive geological evaluation is undergone in conjunction with the actual drilling comments.Thus,the good development results are achieved.
引文
[1]吴明荣,李英涛,曲志鹏.梁家楼—小营地区沙二段三角洲沉积再认识.油气地质与采收率,2009,16(5):12～15Wu Mingrong,Li Yingtao,Qu Zhipeng.Recognitionon the delta of the second member of Shahejie Forma-tion in Liangjialou-Xiaoying area.PGRE,2009,16(5):12～15
[2]冯凯,查朝阳,钟德盈.反演技术和频谱成像技术在储层预测中的综合应用.石油物探,2006,45(3):262～266Feng Kai,Zha Zhaoyang and Zhong Deying.Integratedapplication between inversion and spectral image tech-nology in the reservoir prediction.GPP,2006,45(3):262～266
[3]魏志平.谱分解调谐体技术在薄储层定量预测中的应用.石油地球物理勘探,2009,44(3):337～340Wei Zhi-ping.Application of spectrum-decompositiontuning body technique to quantitatively predict thinreservoir.OGP,2009,44(3):337～340
[4]韩文功,王金铎,张建宁.陆相断陷盆地隐蔽油气藏的地震识别与描述.天然气工业,2007,27(增刊A):431～433
[5]管晓燕,穆星,刘军.相位分析技术在地层圈闭描述中的应用.油气地质与采收率,2007,14(6):56～58Guan Xiaoyan,Mu Xing,Liu Jun.Application of thephase analysis technique for stratigraphic trap descrip-tion.PGRE,2007,14(6):56～58
[6]张福利.地震反射层夹角外推法定量确定地层超覆线位置——以陈家庄凸起东段北部缓坡带馆下段为例.石油地球物理勘探,2008,43(5):573～577Zhang Fu-li.Quantitatively determining position ofstratigraphic overlap line by extrapolation method ofangle included between seismic reflectors case of lowEg segment in northern gentle slope zone of easternpart of Chenjiazhuang salient.OGP,2008,43(5):573～577
[7]李丕龙等.陆相断陷盆地油气地质与勘探(卷五).北京:石油工业出版社,2003:31～39
[2]冯凯,查朝阳,钟德盈.反演技术和频谱成像技术在储层预测中的综合应用.石油物探,2006,45(3):262～266Feng Kai,Zha Zhaoyang and Zhong Deying.Integratedapplication between inversion and spectral image tech-nology in the reservoir prediction.GPP,2006,45(3):262～266
[3]魏志平.谱分解调谐体技术在薄储层定量预测中的应用.石油地球物理勘探,2009,44(3):337～340Wei Zhi-ping.Application of spectrum-decompositiontuning body technique to quantitatively predict thinreservoir.OGP,2009,44(3):337～340
[4]韩文功,王金铎,张建宁.陆相断陷盆地隐蔽油气藏的地震识别与描述.天然气工业,2007,27(增刊A):431～433
[5]管晓燕,穆星,刘军.相位分析技术在地层圈闭描述中的应用.油气地质与采收率,2007,14(6):56～58Guan Xiaoyan,Mu Xing,Liu Jun.Application of thephase analysis technique for stratigraphic trap descrip-tion.PGRE,2007,14(6):56～58
[6]张福利.地震反射层夹角外推法定量确定地层超覆线位置——以陈家庄凸起东段北部缓坡带馆下段为例.石油地球物理勘探,2008,43(5):573～577Zhang Fu-li.Quantitatively determining position ofstratigraphic overlap line by extrapolation method ofangle included between seismic reflectors case of lowEg segment in northern gentle slope zone of easternpart of Chenjiazhuang salient.OGP,2008,43(5):573～577
[7]李丕龙等.陆相断陷盆地油气地质与勘探(卷五).北京:石油工业出版社,2003:31～39
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