南堡凹陷砂岩体识别与勘探成效
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摘要
南堡凹陷具有多凸、多凹、多物源、多旋回、多断裂的特点,具备了良好的地层-岩性圈闭发育条件。针对地震、地质问题和岩性油气藏的特点,确定了处理解释一体化的研究思路。通过砂岩体的攻关处理,砂体外形及内部反射结构更加清晰,在层序地层学研究的基础上,明确了研究层系;通过构造背景、沉积体系及古地貌等方面的综合研究,确定了岩性体发育区带及类型;根据地震反射特征及地震反演结果、地震属性分析等,精细刻画岩性体形态和平面分布特征;最后通过储层及物性预测、地质综合评价,优选出有利钻探目标,钻探后取得了良好的地质效果和经济效益。
Nanpu Sag was a hydrocarbon-enriched depression with characteristics of multi-saliencies,multi-sags,multi-provenances,multi-cycles and multi-faults.It had good conditions for the development of stratigraphic-lithologic traps.The idea of integration of seismic dates processing and interpretation was determined in view of the characteristics of seismic,geological and lithologic hydrocarbon reservoirs.Based on the researching and processing of sandbody,the external shape of sandbody and internal reflection texture are more clear.Based on the study of sequence stratigraphy,series of strata for exploration is determined.The favorable zones and types of sand body are defined by comprehensive geological analysis.According to the seismic reflection features and seismic method,the fine characterization of sandbody shape and its plain distribution are determined.Finally,by reservoir prediction and comprehensive geological evaluation,the favorable target is optimized for well drilling.The remarkable exploration effect and the economic benefit are obtained after well drilling.
Nanpu Sag was a hydrocarbon-enriched depression with characteristics of multi-saliencies,multi-sags,multi-provenances,multi-cycles and multi-faults.It had good conditions for the development of stratigraphic-lithologic traps.The idea of integration of seismic dates processing and interpretation was determined in view of the characteristics of seismic,geological and lithologic hydrocarbon reservoirs.Based on the researching and processing of sandbody,the external shape of sandbody and internal reflection texture are more clear.Based on the study of sequence stratigraphy,series of strata for exploration is determined.The favorable zones and types of sand body are defined by comprehensive geological analysis.According to the seismic reflection features and seismic method,the fine characterization of sandbody shape and its plain distribution are determined.Finally,by reservoir prediction and comprehensive geological evaluation,the favorable target is optimized for well drilling.The remarkable exploration effect and the economic benefit are obtained after well drilling.
引文
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[2]尚雅珍,张放东,李伟,等.锡林好来地区岩性油藏勘探潜力[J].断块油气田,2009,16(2):25～28.
[3]郑有恒.江汉盆地潜江凹陷潜江组岩性油藏勘探方向及对策[J].石油实验地质,2010,32(4):330～333.
[4]宗贻平,付锁堂,张道伟,等.柴西南地区岩性油藏勘探思路及方法[J].新疆石油地质,2010,31(5):460～462.
[5]敬魏,杨文斌.吐哈盆地岩性勘探地震资料叠前处理技术[J].吐哈油气,2007,12(1):40～42.
[6]慕万军,王建民,刘杰烈,等.海拉尔盆地岩性地震勘探方法及攻关方向[J].大庆石油地质与开发,2009,28(5):274～280.
[7]娄占伟,潘良云,张宏伟,等.甘肃酒泉盆地营尔凹陷层序地层特征与岩性勘探目标[J].现代地质,2005,19(5):563～569.
[8]邸秀莲.茨榆坨斜坡带中南段岩性油气藏勘探研究[J].断块油气田,2008,15(2):20～22.
[9]于长华,董晓伟,刘爱平.层序地层三维体解释技术在岐口凹陷中的应用[J].石油天然气学报(江汉石油学院学报),2009,31(3):72～75.
[10]陈庆春,迟小燕.临南洼陷沙三段层序发育对岩性油藏的控制[J].石油天然气学报(江汉石油学院学报),2010,32(3):26～31.
[11]康海亮,于兴河,李胜利.准格尔盆地腹部达巴松地区层序地层与沉积体系研究[J].石油天然气学报(江汉石油学院学报),2008,30(2):417～420.
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