断层识别技术及其在肇州油田的应用
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摘要
肇州油田州371区块位于肇州鼻状构造东翼,是油气运移的指向区。由于断层切割而发育有小断块和小断鼻,小断层对构造形态及油水关系影响大。针对该区块断层多、断距小、延伸短、多期发育、切割关系和组合关系复杂、小断层解释和识别难的地质特点,综合应用了相干体分析技术、沿层倾角方位角分析技术、频谱分解技术以及三维可视化技术等多种物探技术手段,结合地震剖面等多种信息,识别出常规地震数据体难以识别的小断层,并厘清了该区块断层的分布规律及接触关系,发现和落实了一批与小断层有关的低幅度构造,表现了精细构造解释的目的。
Zhou371 Block of Zhaozhou Oilfield is located in the eastern flank of nose structure,which belongs to the favorable directional zone of hydrocarbon migration.Because of the cross cutting of fault,small fault blocks and small fault-noses are developed,and the small faults has significant influence on structural feature and the oil-water relationship.The block is characterized by many faults, small fault throw,short extended distance,multi-stage development, complex cutting relationship and combination relationship, difficult in interpretation and identification of small faults.Aiming at the characteristics,we integrated coherent cube analysis technique, along-layer dip & azimuth analysis technique,frequency spectrum decomposition technique and 3D visualization technique, combining with all kinds of information such as seismic sections,identified some small faults which cannot be recognized from conventional seismic data volume,and verified the distribution and contacting relationship of the faults in the area.Meanwhile,some low-relief structures related with small faults were discovered and defined, and fine structure interpretation was realized.
Zhou371 Block of Zhaozhou Oilfield is located in the eastern flank of nose structure,which belongs to the favorable directional zone of hydrocarbon migration.Because of the cross cutting of fault,small fault blocks and small fault-noses are developed,and the small faults has significant influence on structural feature and the oil-water relationship.The block is characterized by many faults, small fault throw,short extended distance,multi-stage development, complex cutting relationship and combination relationship, difficult in interpretation and identification of small faults.Aiming at the characteristics,we integrated coherent cube analysis technique, along-layer dip & azimuth analysis technique,frequency spectrum decomposition technique and 3D visualization technique, combining with all kinds of information such as seismic sections,identified some small faults which cannot be recognized from conventional seismic data volume,and verified the distribution and contacting relationship of the faults in the area.Meanwhile,some low-relief structures related with small faults were discovered and defined, and fine structure interpretation was realized.
引文
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[2]王彦君,雍学善,刘应如,等.小断层识别技术研究及其应用[J].勘探地球物理进展,2007,30(2): 135-139
[3]吴清龙,张延庆,崔全章.小断层综合解释技术在英台地区的应用[J].石油地球物理勘探,2003,38(5): 527-530
[4]张江华,林承焰,张江利,等.突变理论在断层检测中的应用[J].石油天然气学报,2008,30(1):254-256
[5]孙夕平,杨国权.三维地震相干体技术在目标区沉积相研究中的应用[J].石油物探,2004,43(6): 591-594
[6]赵牧华,杨文强,崔辉霞.用方差体技术识别小断层及裂隙发育带[J].物探化探计算技术,2006,28(3): 216-218
[7]杨午阳,邓央,徐云涛,等.基于小波变换的曲率属性提取和重构方法[J].天然气工业,2007,27(5): 55-57
[8]张延庆,魏小东,王亚楠,等.谱分解技术在QL油田小断层识别与解释中的应用[J].石油地球物理勘探,2006,41(5):584-591
[9]杨林.地震频谱分解技术应用中有关问题的讨论[J].石油物探,2008,47(4):405-409
[10]熊晓军,尹成,张白林,等.基于四阶互累积量的小断层自动识别方法[J].石油地球物理勘探,2004,39 (增刊):158-164
[11]孙夕平,杜世通.边缘检测技术在河道和储层小断裂成像中的应用[J].石油物探,2003,42(4):469-472
[12]张永升.波形分析方法在碳酸盐岩储层预测中的应用[J].石油物探,2004,43(2):135-138
[13]师永民,祁军,张成学,等.应用地震波形分析技术预测裂缝的方法探讨[J].石油物探,2005,44(2): 128-130
[14]王兴建,曹俊兴,李学民.基于分形理论的地震裂缝检测方法[J].石油物探,2003,42(2):191-195
[15]崔若飞,许东.利用分形技术和人工神经网络技术检测小断层[J].中国矿业大学学报,1999,28(3): 258-261
[16]毕俊凤.优势频带分频相位分析技术的应用[J].工程地球物理学报,2008,5(2):192-195
[17]秦伟军,张永华,全书进.精细构造解释与储层预测技术在泌阳凹陷中南部地区二次勘探中的应用[J].石油物探,2004,43(1):62-66
[18]吴东胜,陈华军,刘少华,等.三维可视化技术在隐蔽油气藏勘探中的应用[J].石油物探,2005,44(1): 44-46
[19]李剑峰,董宁,关达.虚拟现实技术在鄂尔多斯东北部低渗透气藏勘探开发中的应用[J].石油物探, 2005,44(5):471-473
[20]武卫锋.三肇凹陷扶杨油层断裂系统及控藏机理研究[D].大庆:大庆石油学院,2008
[21]付广,张石峰,杜春国.松辽盆地北部岩性油藏形成机制及主控因素[J].石油勘探与开发,2002,29(5): 22-24
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