基于VSP高分辨率处理提高随钻地震反演精度的方法及应用
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摘要
为满足油田开发阶段储层高精度预测的要求,指导现场随钻作业,提出一种了基于VSP高分辨率处理提高随钻反演精度的方法。该方法包括,利用VSP资料提取反褶积算子,对纯波地震资料进行反褶积处理,提高地震资料的分辨率,结合钻井信息,利用处理后的高分辨率地震资料进行动态的随钻测井约束反演,预测水平井地层物性的横向变化情况;在地质导向随钻跟踪过程中,提前预测钻前地层物性,及时给出随钻决策,提高储层钻遇率。经过实例验证,将VSP高分辨处理技术和地质导向随钻反演技术结合起来,能够更加精确地预测储层分布状况。
In order to meet the requirements of reservoir height prediction in the oilfield development stage and guide field drilling operation, a method based on VSP high resolution processing is proposed to improve the inversion accuracy while drilling. The method includes extracting filter using VSP data, inverse filtering of pure wave seismic data, improving the resolution of seismic data, combined with drilling information, while drilling logging constrained inversion dynamic using high resolution seismic data processing, prediction of lateral changes of horizontal well reservoir; in geosteering with drilling in the process of tracking, early prediction before drilling formation property, provide drilling decision, improving reservoir drilling rate. It is proved by examples that the VSP high resolution processing and the seismic inversion while drilling technology can be used to predict reservoir distribution more accurately.
In order to meet the requirements of reservoir height prediction in the oilfield development stage and guide field drilling operation, a method based on VSP high resolution processing is proposed to improve the inversion accuracy while drilling. The method includes extracting filter using VSP data, inverse filtering of pure wave seismic data, improving the resolution of seismic data, combined with drilling information, while drilling logging constrained inversion dynamic using high resolution seismic data processing, prediction of lateral changes of horizontal well reservoir; in geosteering with drilling in the process of tracking, early prediction before drilling formation property, provide drilling decision, improving reservoir drilling rate. It is proved by examples that the VSP high resolution processing and the seismic inversion while drilling technology can be used to predict reservoir distribution more accurately.
引文
[1] 李文杰,魏修成,刘洋.利用VSP提高地震资料处理质量的新途径[J].新疆石油地质,2005,26(1):96-98.
[2] 姚忠瑞,何惺华.利用VSP提高叠后地面地震资料分辨率[J].油气地球物理,2006,25(4):23-27.
[3] 张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-390.
[4] 张静,杨勤林,王天琦.深度域地震反演方法探索[J].石油地球物理勘探,2010,45(增1):137-144.
[5] 路鹏飞,郭爱华,赵岩.地震反演技术在冀东油田A构造储层预测中的应用[J].石油天然气学报,2011,33(5):59-63.
[6] 张国栋,刘萱,田丽花,等.综合应用地震属性与地震反演进行储层描述[J].石油地球物理勘探,2010,45(增1):137-144.
[7] 秦宗超,刘迎贵,邢维奇,等.水平井地质导向技术在复杂河流相油田中的应用[J].石油勘探与开发,2006,33(3):378-382.
[8] 杨少虎,朱卫星,杨玉卿,等.测井地震联合建模方法在地质导向前导模型中的应用[J].海洋石油,2012,32(2):82-86.
[9] 袁春艳,贾家磊,张红.地质统计反演在鄂尔多斯盆地南部彬长区块储层预测中的应用 [J].工程地球物理学报,2016,13(1):77-81.
[10] 左卫华.测井约束2D地震反演预测煤层及上部砂岩厚度[J].工程地球物理学报,2018,15(2):181-188.
[2] 姚忠瑞,何惺华.利用VSP提高叠后地面地震资料分辨率[J].油气地球物理,2006,25(4):23-27.
[3] 张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-390.
[4] 张静,杨勤林,王天琦.深度域地震反演方法探索[J].石油地球物理勘探,2010,45(增1):137-144.
[5] 路鹏飞,郭爱华,赵岩.地震反演技术在冀东油田A构造储层预测中的应用[J].石油天然气学报,2011,33(5):59-63.
[6] 张国栋,刘萱,田丽花,等.综合应用地震属性与地震反演进行储层描述[J].石油地球物理勘探,2010,45(增1):137-144.
[7] 秦宗超,刘迎贵,邢维奇,等.水平井地质导向技术在复杂河流相油田中的应用[J].石油勘探与开发,2006,33(3):378-382.
[8] 杨少虎,朱卫星,杨玉卿,等.测井地震联合建模方法在地质导向前导模型中的应用[J].海洋石油,2012,32(2):82-86.
[9] 袁春艳,贾家磊,张红.地质统计反演在鄂尔多斯盆地南部彬长区块储层预测中的应用 [J].工程地球物理学报,2016,13(1):77-81.
[10] 左卫华.测井约束2D地震反演预测煤层及上部砂岩厚度[J].工程地球物理学报,2018,15(2):181-188.