辽东湾探区古近系浊积体针对性地震处理与识别技术
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摘要
浊积岩油气藏具有分布广、埋藏深、隐蔽性强等特点,常规勘探技术往往难以有效识别。针对上述问题该文在小波分频成像、构造约束保边滤波、井控提高分辨率等地球物理处理技术的基础上,通过运用有色反演、地层倾角、方位角与相干分析等技术来描述浊积体的空间几何形态,开展对浊积岩油气藏有效勘探方法的研究,并有效指导浊积岩体隐蔽油气藏勘探工作,总结出一套适合辽东湾探区浊积体识别的地球物理技术流程,对指导该区的岩性油气藏勘探具有一定的推广价值。
The turbidite reservoir is characterized by wide distribution,deep burial and strong concealment,so it is difficult to identify the turbidite reservoir by conventional exploration technology.The wavelet frequency-dependent imaging,structure-oriented edge-preserving smoothing and well control for resolution improvement combined with geophysical processing techniques such as color inversion,dip,azimuth and coherent analysis were used to describe the geometrical features of turbidite.In addition,the new geophysical identification technologies for Paleogene turbidite were applied properly for Liaodong Bay area.The field study confirms that the new techniologies lay a good foundation for stratigraphic-lithologic reservoir in this area.
The turbidite reservoir is characterized by wide distribution,deep burial and strong concealment,so it is difficult to identify the turbidite reservoir by conventional exploration technology.The wavelet frequency-dependent imaging,structure-oriented edge-preserving smoothing and well control for resolution improvement combined with geophysical processing techniques such as color inversion,dip,azimuth and coherent analysis were used to describe the geometrical features of turbidite.In addition,the new geophysical identification technologies for Paleogene turbidite were applied properly for Liaodong Bay area.The field study confirms that the new techniologies lay a good foundation for stratigraphic-lithologic reservoir in this area.
引文
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[4]加东辉,周心怀,李建平,等.一种少井地区“岩性圈闭表征”的思路——以辽东湾地区为例[J].岩性油气藏,2009,21(4):124-129.
[5]王军,张中巧,张海义.地震沉积学在少井或无井条件下储层研究中的应用[J].重庆科技学院学报:自然科学版,2011,13(1):1-5.
[6]余鹏,李振春.分频技术在储层预测中的应用[J].勘探地球物理进展,2006,29(6):419-423.
[7]田立新,周东红,刘立辉.辽东湾蠕虫状地震反射的地质意义研究[J].石油物探,2010,49(3):295-298.
[8]杨勤林,王彦春,张菊梅,等.低幅度构造识别技术在Carmen油田三维工区的应用[J].地球物理学进展,2009,24(3):965-969.
[9]肖燕,黄怡,屈伟,等.测井资料预处理对井约束反演影响分析及应用[J].新疆地质,2007,25(4):418-421.
[10]杨立强,宋海斌,郝天珧.基于BP神经网络的波阻抗反演及应用[J].地球物理学进展,2005,20(1):34-37.
[11]周惠文,曹正林,杜斌山.含气特征曲线重构技术在致密含气砂岩储层预测中的应用[J].天然气地球科学,2006,17(5):723-726.
[12]赵虎,崔若飞,陈同俊,等.基于模拟测井资料的波阻抗反演[J].物探化探计算技术,2007,29(3):l97-199.
[13]谢玉洪,陈志宏,陈殿远.含气储层非均质性评价技术研究及其应用[J].石油物探,2007,46(4):353-358.
[14]徐希坤,王庆华.本征值相干技术在青东地区的应用[J].石油天然气学报,2008,30(6):265-267.
[15]马瑾环,陈国俊,吴志高,等.改进的第三代相干算法及应用[J].勘探地球物理进展,2007,30(4):286-291.
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