火山熔岩地震识别与预测方法研究及应用
|
摘要
火山熔岩是火山岩储层中重要的一类含油气储层,广泛分布于松辽盆地南部英台断陷营城组。该类储层厚度大、局部物性好、单井产量高,是重要的勘探领域。由于火山熔岩岩性复杂,地震反射特征多样,纵横向非均质性强,使得对其边界的确定及火山机构的划分十分困难。另外,储层埋藏深、地震资料品质低、道集入射角偏小及储层波阻抗叠置等原因,也给储层预测增加了难度。以英台断陷营城组火山熔岩为例,应用多种技术对其边界及内幕进行了识别,并明确了其空间展布。在此基础上,根据测井响应和气藏特征,采用基于曲线重构的叠前同时反演技术,提高了火山熔岩储层的反演精度及预测的可靠性,为此类复杂储层的识别及预测提供了新的思路和方法。
Volcanic lava is widely distributed in Yingcheng Formation of Yingtai fault depression in southern Songliao Basin.It is one of the most important hydrocarbon reservoirs of volcanic reservoirs.The reservoir is characterized by large thickness,excellent reservoir properties and high productivity,and has favorable prospect.Volcanic lava has complicated lithologies,variable seismic reflection characteristics and strong heterogeneity,so it is difficult to define the volcanic lava boundary and identify volcanic apparatus.Besides,deep reservoir burial,low quality of seismic data,low-angle of gathers and superposed wave impedance enhance the difficulty of the reservoir prediction.This paper applied several techniques to identify the boundary and inner of volcanic lava of Yingcheng Formation,and defined its distribution.According to the log response and gas reservoir characteristics,we used pre-stack simultaneous inversion technology based on log reconstruction,which improves the inversion accuracy and reliability of prediction of volcanic lava reservoir.This method provides newthought and method for the identification and prediction of this kind of complicated reservoirs.
Volcanic lava is widely distributed in Yingcheng Formation of Yingtai fault depression in southern Songliao Basin.It is one of the most important hydrocarbon reservoirs of volcanic reservoirs.The reservoir is characterized by large thickness,excellent reservoir properties and high productivity,and has favorable prospect.Volcanic lava has complicated lithologies,variable seismic reflection characteristics and strong heterogeneity,so it is difficult to define the volcanic lava boundary and identify volcanic apparatus.Besides,deep reservoir burial,low quality of seismic data,low-angle of gathers and superposed wave impedance enhance the difficulty of the reservoir prediction.This paper applied several techniques to identify the boundary and inner of volcanic lava of Yingcheng Formation,and defined its distribution.According to the log response and gas reservoir characteristics,we used pre-stack simultaneous inversion technology based on log reconstruction,which improves the inversion accuracy and reliability of prediction of volcanic lava reservoir.This method provides newthought and method for the identification and prediction of this kind of complicated reservoirs.
引文
[1]侯启军,赵志魁,王立武.火山岩气藏——松辽盆地南部大型火山岩气藏勘探理论与实践[M].北京:科学出版社,2009:15-65.
[2]邹才能,赵文智,贾承造,等.中国沉积盆地火山岩油气藏形成与分布[J].石油勘探与开发,2008,35(3):257-258.
[3]于孝玉,阮宝涛,王志,等.火山岩气藏火山口多信息识别技术及应用[J].物探化探计算技术,2011,33(4):351-352.
[4]石磊,李书斌,黄亮,等.火山岩储层研究现状与存在的问题[J].西南石油大学学报:自然科学版,2009,31(5):68-72.
[5]曹宝军,李相方,姚约东.火山岩气藏开发难点与对策[J].天然气工业,2007,27(8):82-84.
[6]赵文智,邹才能,冯志强,等.松辽盆地深层火山岩气藏地质特征及评价技术[J].石油勘探与开发,2008,35(2):129-130.
[7]闫奎邦,李鸿,邓传伟,等.WLT地区深层火山岩储层地震识别与描述[J].石油物探,2008,47(3):256-261
[8]云美厚.地震分辨率[J].勘探地球物理进展,2005,28(1):12-13.
[9]冯凯,查朝阳,钟德盈.反演技术和频谱成像技术在储层预测中的综合应用[J].石油物探,2006,45(3):262-263.
[10]姜传金,冯肖宇.火山岩储层预测的地震反演方法[J].大庆石油地质与开发,2009,28(6):304-305.
[11]徐小蓉,苟迎春,曹正林,等.利用叠前密度反演预测岩性的应用研究[J].海洋石油,2011,31(2):54-55.
[12]丁日新,舒萍,纪学雁.徐深气田徐深21区块火山岩储层预测与分类[J].天然气工业,2009,29(8):22-25.
[13]郎晓玲,彭仕宓,康洪全,等.叠前同时反演方法在流体识别中的应用[J].石油物探,2010,49(2):164-165.
[14]王华忠,张元巧,任浩然.叠前地震数据射线束道集叠加压制噪声[J].勘探地球物理进展,2007,30(5):356-360.
①邵明礼.松辽盆地南部英台断陷五棵树构造带龙深1、2区块新增天然气预测储量报告.中国石油吉林油田分公司勘探开发研究院,2011.
①邵明礼.松辽盆地南部英台断陷五棵树构造带龙深1、2区块新增天然气预测储量报告.中国石油吉林油田分公司勘探开发研究院,2011.
[2]邹才能,赵文智,贾承造,等.中国沉积盆地火山岩油气藏形成与分布[J].石油勘探与开发,2008,35(3):257-258.
[3]于孝玉,阮宝涛,王志,等.火山岩气藏火山口多信息识别技术及应用[J].物探化探计算技术,2011,33(4):351-352.
[4]石磊,李书斌,黄亮,等.火山岩储层研究现状与存在的问题[J].西南石油大学学报:自然科学版,2009,31(5):68-72.
[5]曹宝军,李相方,姚约东.火山岩气藏开发难点与对策[J].天然气工业,2007,27(8):82-84.
[6]赵文智,邹才能,冯志强,等.松辽盆地深层火山岩气藏地质特征及评价技术[J].石油勘探与开发,2008,35(2):129-130.
[7]闫奎邦,李鸿,邓传伟,等.WLT地区深层火山岩储层地震识别与描述[J].石油物探,2008,47(3):256-261
[8]云美厚.地震分辨率[J].勘探地球物理进展,2005,28(1):12-13.
[9]冯凯,查朝阳,钟德盈.反演技术和频谱成像技术在储层预测中的综合应用[J].石油物探,2006,45(3):262-263.
[10]姜传金,冯肖宇.火山岩储层预测的地震反演方法[J].大庆石油地质与开发,2009,28(6):304-305.
[11]徐小蓉,苟迎春,曹正林,等.利用叠前密度反演预测岩性的应用研究[J].海洋石油,2011,31(2):54-55.
[12]丁日新,舒萍,纪学雁.徐深气田徐深21区块火山岩储层预测与分类[J].天然气工业,2009,29(8):22-25.
[13]郎晓玲,彭仕宓,康洪全,等.叠前同时反演方法在流体识别中的应用[J].石油物探,2010,49(2):164-165.
[14]王华忠,张元巧,任浩然.叠前地震数据射线束道集叠加压制噪声[J].勘探地球物理进展,2007,30(5):356-360.
①邵明礼.松辽盆地南部英台断陷五棵树构造带龙深1、2区块新增天然气预测储量报告.中国石油吉林油田分公司勘探开发研究院,2011.
①邵明礼.松辽盆地南部英台断陷五棵树构造带龙深1、2区块新增天然气预测储量报告.中国石油吉林油田分公司勘探开发研究院,2011.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心