永进油田西山窑组储层预测方法
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摘要
现已探明准噶尔盆地永进油田具有上亿吨的石油地质储量,其主力层系之一为侏罗系西山窑组,但其储层埋藏深、非均质性强、储集物性较差,表现为砂、泥岩速度混杂、地震反射同相轴与砂、泥岩对应关系不明确等特征。分析研究认为,自然伽马曲线与岩性具有较好对应关系,能够反映储层的地球物理特征,通过采取波阻抗反演技术有效识别了目的层段砂、泥岩的空间分布情况,并利用"空变时窗"地震属性优化分析技术有效地预测、评价了储层。
It was proven that in Yongjing Oilfield of Junggar Basin there were a hundred million tons petroleum geological reserves, Jurassic Xishanyao Formation was one of major strata, but the reservoir was buried deeply with strong heterogeneity and poor reservoir physical property, it had the characters of sandstone mixed with mudstone and the corresponding relation between axis of seismic reflection and sandstone and mudstone was unclear. Analysis shows that the corresponding relation between GR curve and lithology was good, by which the geophysical characters could be reflected in the reservoir. The technique of wave impedance reverse simulation is used to recognize the distributions of sandstone and mudstone in the target zones, the technique of variational time-window for seismic attribute is used for effectively predicting and evaluating the reservoirs.
It was proven that in Yongjing Oilfield of Junggar Basin there were a hundred million tons petroleum geological reserves, Jurassic Xishanyao Formation was one of major strata, but the reservoir was buried deeply with strong heterogeneity and poor reservoir physical property, it had the characters of sandstone mixed with mudstone and the corresponding relation between axis of seismic reflection and sandstone and mudstone was unclear. Analysis shows that the corresponding relation between GR curve and lithology was good, by which the geophysical characters could be reflected in the reservoir. The technique of wave impedance reverse simulation is used to recognize the distributions of sandstone and mudstone in the target zones, the technique of variational time-window for seismic attribute is used for effectively predicting and evaluating the reservoirs.
引文
[1]王西文,石兰亭,雍学善等.地震波阻抗反演方法研究[J].岩性油气藏,2007,19(3):80~88.
[2]陈军,陈岩.地震属性分析在储层预测中的应用[J].石油物探,2001,40(3):94~99.
[3]李积永,张玉敏,石勇.地震反演技术在乌南油田的应用[J].中外能源,2007,12(4):52~55.
[4]韩军,梁全胜,常迈等.反演技术在低勘探程度区域岩性油气藏勘探中的应用[J].西安石油大学学报,2007,22(1):49~53.
[5]李海涛,孟宪军,宋传春等.准噶尔盆地中部区块地震属性适用性研究[J].石油物探,2004,43(2):122~126.
[6]袁秉衡.应用地震技术研究储层[M].北京:石油工业出版社,1992.26~41.
[7]王利天,王志章,秦志军等.应用地震属性分析预测油气藏储集层[J].新疆石油地质,2007,28(3):370~371.
[8]杨谦,李正文.多参数约束反演系统的原理和方法[J].成都理工学院学报,1996,23(2):93~100.
[9]余鹏,彭勇民,宋传春.准噶尔盆地侏罗系隐蔽圈闭的识别效果[J].石油地球物理勘探,2006,41(3):337~340.
[2]陈军,陈岩.地震属性分析在储层预测中的应用[J].石油物探,2001,40(3):94~99.
[3]李积永,张玉敏,石勇.地震反演技术在乌南油田的应用[J].中外能源,2007,12(4):52~55.
[4]韩军,梁全胜,常迈等.反演技术在低勘探程度区域岩性油气藏勘探中的应用[J].西安石油大学学报,2007,22(1):49~53.
[5]李海涛,孟宪军,宋传春等.准噶尔盆地中部区块地震属性适用性研究[J].石油物探,2004,43(2):122~126.
[6]袁秉衡.应用地震技术研究储层[M].北京:石油工业出版社,1992.26~41.
[7]王利天,王志章,秦志军等.应用地震属性分析预测油气藏储集层[J].新疆石油地质,2007,28(3):370~371.
[8]杨谦,李正文.多参数约束反演系统的原理和方法[J].成都理工学院学报,1996,23(2):93~100.
[9]余鹏,彭勇民,宋传春.准噶尔盆地侏罗系隐蔽圈闭的识别效果[J].石油地球物理勘探,2006,41(3):337~340.
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