地震属性在水平井地质导向中的应用
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摘要
由于四川盆地地层构造复杂、储层横向变化大、非均质性较强,用常规测井资料进行水平井地质导向难度较大。研究了地震属性在四川盆地复杂地层地质导向中的应用。地震属性指的是由叠前或叠后地震数据,经过数学变换而导出的有关地震波的几何形态和运动学特征,能比较真实地反映岩石的物理特征,可用于描述储集体的几何形态、构造特征和储集轮廓。地震属性包含了丰富的地质信息,特别是近年来兴起的曲率体、蚂蚁体等属性提取技术,能很好地识别测井资料难以辨别的小断层和裂缝(孔洞),在预测储层发育带的同时为钻井风险的预判提供了依据。实际应用证实地震属性提取技术能够为现场地质导向决策提供技术支撑,在提高储层钻遇率和降低钻井工程风险方面发挥了积极作用。
Horizontal well logging while drilling is a multi-disciplinary integrated technology.In the Sichuan Basin,due to its complex stratigraphic structure,large lateral variation of reservoirs and strong heterogeneity,conventional logging data cannot provide support for the geo-steering.This paper studies the application of seismic properties in geo-steering in the complex stratigraphic of the Sichuan Basin.Seismic attributes refer to the geometrical and kinematic characteristics of seismic waves derived from pre-stack or post-stack seismic data and derived from mathematical transformations. Which can reflect the physical characteristics of rock more realistically,and can also be used to describe the geometry,structural features and reservoir outline of the reservoir.Seismic attributes contain a wealth of geological information,especially in recent years,popular attribute extraction techniques such as curvature bodies,ant bodies,etc.,can well identify small faults and fractures(holes)that are difficult to distinguish from logging data.These techniques not only predict the reservoir development zone,but also provide a basis for predicting drilling risks.The practical application proves that seismic attribute extraction technology can provide technical support for on-site geo-steering decision-making,meanwhile it plays an active role in improving drilling rate and reducing drilling risk,which is worthy of promotion.
Horizontal well logging while drilling is a multi-disciplinary integrated technology.In the Sichuan Basin,due to its complex stratigraphic structure,large lateral variation of reservoirs and strong heterogeneity,conventional logging data cannot provide support for the geo-steering.This paper studies the application of seismic properties in geo-steering in the complex stratigraphic of the Sichuan Basin.Seismic attributes refer to the geometrical and kinematic characteristics of seismic waves derived from pre-stack or post-stack seismic data and derived from mathematical transformations. Which can reflect the physical characteristics of rock more realistically,and can also be used to describe the geometry,structural features and reservoir outline of the reservoir.Seismic attributes contain a wealth of geological information,especially in recent years,popular attribute extraction techniques such as curvature bodies,ant bodies,etc.,can well identify small faults and fractures(holes)that are difficult to distinguish from logging data.These techniques not only predict the reservoir development zone,but also provide a basis for predicting drilling risks.The practical application proves that seismic attribute extraction technology can provide technical support for on-site geo-steering decision-making,meanwhile it plays an active role in improving drilling rate and reducing drilling risk,which is worthy of promotion.
引文
[1]刘红歧,夏宏泉.复杂油气藏随钻测井与地质导向[M].北京:科学出版社,2017.
[2]夏宏泉,王瀚玮,赵昊.页岩气水平井前导地质物理模型的测井研究[J].西南石油大学学报(自然科学版),2017,39(6):1-9.
[3]夏宏泉,陈宇,王瀚玮.环境因素对页岩气水平井随钻测井曲线的影响[J].国外测井技术,2018,39(1):9-14.
[4]王谦,苏波,李震,等.随钻地质导向在S7-59H井中的应用[J].断块油气田,2016,23(2):252-257.
[5]么景臣,郭彦民.大民屯凹陷中段潜山裂缝预测研究与应用[J].特种油气藏,2002,9(2):23-25.
[6]朱卫星,杨玉卿,赵永生,等.测井地震联合反演在地质导向风险控制中的应用[J].石油地球物理勘探,2013(增刊):81-185.
[7]刘丽薇.多属性分析技术在薄互层条件下识别古河道应用[J].大庆石油学院学报,2006,30(4):4-6.
[8]李爽,李玉城,段宪余,等.水平井技术在苏1区块的应用[J].特种油气藏,2011,18(3):84-86.
[9]张军,华王伟.曲率属性及其在构造解释中的应用[J].油气地球物理,2009,7(2):17.
[10]王金伟.地震资料在水平井导向中的应用研究[J].国外测井技术,2016,37(5):39-41.
[11]王彦祺.地质导向钻井技术在腰英台油田的应用[J].石油钻探技术,2009,37(1):39-41.
[12]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.
[13]陆嫣,鲁全贵,李彬,等.蚂蚁追踪技术在随钻跟踪及井位优化中的应用[J].物探化探计算技术,2011,33(4):394-400.
[14]秦月霜,常中元,唐文峰.对超薄席状砂水平井设计的几点认识[J].大庆石油地质与开发,2009,28(6):91-95.
[15]李建雄,崔全章,魏小东.地震属性在微断层解释中的应用[J].石油地球物理勘探,2011,46(6):925-930.
[16]魏小东,张延庆,曹丽丽.地震资料振幅谱梯度属性在WC地区储层评价中的应用[J].石油地球物理勘探,2011,46(2):281-284.
[17]隆雨辰,李俊,王志章,等.综合蚂蚁体及曲率属性的断裂识别方法及应用[J].油气藏评价与开发,2017,7(4):6-10.
[18]MARFURT K.Curvature attribute application to 3D surface seismic data[J].The Leading Edge,2007,26(4):404-414.
[19]HELMORE S,PLUMLEY A A.3Dseismic volume curvature attribute aids structure and stratigraphic interpretation[C]∥PETEX Conference, London,2004.
[20]DORIGO M,MANIEZZO V,COLORNI A.Ant system:optimization by a colony of cooperating agents[J].IEEE Transactions on Systems Man&Cybernetics,1996,26(1):29-41.
[2]夏宏泉,王瀚玮,赵昊.页岩气水平井前导地质物理模型的测井研究[J].西南石油大学学报(自然科学版),2017,39(6):1-9.
[3]夏宏泉,陈宇,王瀚玮.环境因素对页岩气水平井随钻测井曲线的影响[J].国外测井技术,2018,39(1):9-14.
[4]王谦,苏波,李震,等.随钻地质导向在S7-59H井中的应用[J].断块油气田,2016,23(2):252-257.
[5]么景臣,郭彦民.大民屯凹陷中段潜山裂缝预测研究与应用[J].特种油气藏,2002,9(2):23-25.
[6]朱卫星,杨玉卿,赵永生,等.测井地震联合反演在地质导向风险控制中的应用[J].石油地球物理勘探,2013(增刊):81-185.
[7]刘丽薇.多属性分析技术在薄互层条件下识别古河道应用[J].大庆石油学院学报,2006,30(4):4-6.
[8]李爽,李玉城,段宪余,等.水平井技术在苏1区块的应用[J].特种油气藏,2011,18(3):84-86.
[9]张军,华王伟.曲率属性及其在构造解释中的应用[J].油气地球物理,2009,7(2):17.
[10]王金伟.地震资料在水平井导向中的应用研究[J].国外测井技术,2016,37(5):39-41.
[11]王彦祺.地质导向钻井技术在腰英台油田的应用[J].石油钻探技术,2009,37(1):39-41.
[12]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.
[13]陆嫣,鲁全贵,李彬,等.蚂蚁追踪技术在随钻跟踪及井位优化中的应用[J].物探化探计算技术,2011,33(4):394-400.
[14]秦月霜,常中元,唐文峰.对超薄席状砂水平井设计的几点认识[J].大庆石油地质与开发,2009,28(6):91-95.
[15]李建雄,崔全章,魏小东.地震属性在微断层解释中的应用[J].石油地球物理勘探,2011,46(6):925-930.
[16]魏小东,张延庆,曹丽丽.地震资料振幅谱梯度属性在WC地区储层评价中的应用[J].石油地球物理勘探,2011,46(2):281-284.
[17]隆雨辰,李俊,王志章,等.综合蚂蚁体及曲率属性的断裂识别方法及应用[J].油气藏评价与开发,2017,7(4):6-10.
[18]MARFURT K.Curvature attribute application to 3D surface seismic data[J].The Leading Edge,2007,26(4):404-414.
[19]HELMORE S,PLUMLEY A A.3Dseismic volume curvature attribute aids structure and stratigraphic interpretation[C]∥PETEX Conference, London,2004.
[20]DORIGO M,MANIEZZO V,COLORNI A.Ant system:optimization by a colony of cooperating agents[J].IEEE Transactions on Systems Man&Cybernetics,1996,26(1):29-41.