声波曲线重构反演技术在霍多莫尔地区储层预测中的应用
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摘要
霍多莫尔地区的储层与非储层(围岩)波阻抗差异不明显,利用常规波组抗反演识别岩性比较困难,不能有效预测有利储层的分布情况,无法满足精细储层预测的要求。在对测井曲线进行常规的归一化与标准化之后,通过综合分析岩性、测井、测井解释成果等资料,利用交汇图进行测井曲线敏感性分析,用优选出来的伽马曲线构建拟声波曲线。用拟声波曲线进行地震反演,很好地区分了本地区的砂岩和泥岩,预测了砂体的厚度与横向展布规律,在勘探生产过程中取得了较好的应用效果。
Wave impedance differences between reservoir and nonreservoir(surrounding rock) are not obvious in Huoduomoer area.It is difficult to identify lithology by using conventional impedance inversion.Distribution of reservoir can not be predicted effec tively.And it can not meet the requirement of fine reservoir prediction.After conventional normalization and standardization of log presentation and through synthetic information analysis of lithology,logging,log interpretation results,etc,this paper analyzed sen sitivity of log presentation on the base of crossplot and used optimal gamma curve to construct pseudo-acoustic curve.By using pseudo-acoustic curves to conduct seismic inversion,this paper distinguished sandstone and mudstone of this region clearly,pre dicted the landscape orientation distribution and lengthways thickness of sandbody.This technology applied well in the process of exploration and production.
Wave impedance differences between reservoir and nonreservoir(surrounding rock) are not obvious in Huoduomoer area.It is difficult to identify lithology by using conventional impedance inversion.Distribution of reservoir can not be predicted effec tively.And it can not meet the requirement of fine reservoir prediction.After conventional normalization and standardization of log presentation and through synthetic information analysis of lithology,logging,log interpretation results,etc,this paper analyzed sen sitivity of log presentation on the base of crossplot and used optimal gamma curve to construct pseudo-acoustic curve.By using pseudo-acoustic curves to conduct seismic inversion,this paper distinguished sandstone and mudstone of this region clearly,pre dicted the landscape orientation distribution and lengthways thickness of sandbody.This technology applied well in the process of exploration and production.
引文
[1]贾承造,赵文智,邹才能,等.岩性地层油气藏勘探研究的两项核心技术[J].石油勘探与开发,2004,31(3):3-9.
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[3]张学芳,董月昌,慎国强,等.曲线重构技术在测井约束反演中的应用[J].石油勘探与开发,2005,32(3):70-72.
[4]刘淑华,张宗和,刘建武,等.声波曲线重构反演技术在储层预测中的应用[J].天然气工业,2007,27(增刊A):394-396.
[5]姜传金,马学辉,周恩红.拟声波曲线构建的意义及应用[J].大庆石油地质与开发,2004,23(1):12-14.
[6]张玉刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):285-390.
[7]姚逢昌,甘利灯.地震反演的应用与限制[J].石油勘探与开发,2000,27(2):53-56.
[8]魏立花,井约束岩性反演关键技术分析[J].天然气地球科学,2006,17(5):731-735.
[2]付志方,张君,邢卫新,等.拟声波构造技术在砂泥岩薄互层储层预测中的应用[J].石油物探,2006,45(4):415-417.
[3]张学芳,董月昌,慎国强,等.曲线重构技术在测井约束反演中的应用[J].石油勘探与开发,2005,32(3):70-72.
[4]刘淑华,张宗和,刘建武,等.声波曲线重构反演技术在储层预测中的应用[J].天然气工业,2007,27(增刊A):394-396.
[5]姜传金,马学辉,周恩红.拟声波曲线构建的意义及应用[J].大庆石油地质与开发,2004,23(1):12-14.
[6]张玉刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):285-390.
[7]姚逢昌,甘利灯.地震反演的应用与限制[J].石油勘探与开发,2000,27(2):53-56.
[8]魏立花,井约束岩性反演关键技术分析[J].天然气地球科学,2006,17(5):731-735.
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