层序地层学技术对三角洲储层的识别与应用
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摘要
东营三角洲储层具层薄、侧向叠置特点,常规地层对比、储层预测方法,难以有效预测薄砂层分布规律,致使砂层注采连通关系认识不清.本文以唐家河长期注水开发、水淹严重的东三段储层为例,应用层序地层学OpendTect储层识别软件,对东三段6 m以上砂层进行横向追踪预测.该软件做出比地震解释界面更精细的微层序,准确描述出砂体空间展布,刻画出高产层砂体边界.在此基础上,部署了区块调整方案,实施效果显著,该项技术对薄砂层识别与追踪具辅助作用.
Dongying Delta Reservoir has the characteristics of thin reservoir thickness and lateral overriding,it is difficult to predict the distribution rules of thin sandstone using conventional correlation of strata and prediction method and this led to understanding the relationship between injection and production connectivity unclearly.In this paper,taking long-term water flood development,serious flush SectionⅢDongying Formation of tangjiahe oil field as an example,sand body about 6 m thickness can be traced laterally in SectionⅢDongying Formation With the help of the software"OpendTect"which under the guidance of Sequence stratigraphy theory."OpendTect"is able to make the interface more fine than the seismic interpretation interface,describe the space through-going accurately,depict sand body boundary of high productivity reservoir.Based on above research result,development plan has a good result after the implementation.This technique has a good supporting role in identification and trace of thin sand.
Dongying Delta Reservoir has the characteristics of thin reservoir thickness and lateral overriding,it is difficult to predict the distribution rules of thin sandstone using conventional correlation of strata and prediction method and this led to understanding the relationship between injection and production connectivity unclearly.In this paper,taking long-term water flood development,serious flush SectionⅢDongying Formation of tangjiahe oil field as an example,sand body about 6 m thickness can be traced laterally in SectionⅢDongying Formation With the help of the software"OpendTect"which under the guidance of Sequence stratigraphy theory."OpendTect"is able to make the interface more fine than the seismic interpretation interface,describe the space through-going accurately,depict sand body boundary of high productivity reservoir.Based on above research result,development plan has a good result after the implementation.This technique has a good supporting role in identification and trace of thin sand.
引文
[1]赵澄林.沉积岩石学[M].北京:石油工业出版社,2001
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[3]陆克政.含油气盆地分析[M].东营:石油大学出版社,2001.
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[2]朱筱敏.层序地层学[M].东营:石油大学出版社,2000.
[3]陆克政.含油气盆地分析[M].东营:石油大学出版社,2001.
[4]张一伟,张卫海,查明,等.勘探早期盆地分析与油气评价[M].北京:地质出版社,1998.
[5]黄真萍.地震信息的属性参数提取和砂体预测方法[J].石油地球物理勘探,1997,32(5):669-682.
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