地震属性分析技术在断层地层圈闭识别中的应用——以车排子地区清水河组为例
摘要
白垩系清水河组在车排子凸起东斜坡区由沙湾凹陷向隆起高部位层层超覆尖灭,北西—南东向断裂成排成带分布,易形成断层与地层超覆型复合圈闭。地震相干分析技术对识别小断距断层有较大的帮助,分频和振幅类地震属性的结合可有效识别薄砂层组超覆尖灭线,沿层振幅类属性特征可识别研究区各期砂层发育期三角洲前缘沉积体的分布,进一步预测砂体的发育区。构造解释与地震属性的结合可评价圈闭储层发育特征,指出研究区第二期砂层组发育5个断层地层圈闭,圈闭内砂体发育,具有重要勘探价值,其中A圈闭、C圈闭是下一步首选勘探目标。
The Cretaceous Qingshuihe Formation in the eastern slope of Chepaizi area overlap from Shawan sag to high position of the uplift,and the distribution of the northwest-southeast striking faults as a row and belt shape are profitable to the fault-stratigraphic composite trap in this area.The seismic coherence technology is a tool to identify the small faults.The combination of frequency and amplitude attributes has ability to effectively identify the thin sand pinch-out line.the delta front sand body distribution at different stages of sand formation can be identified by the amplitude characteristics of along layer attribute to predict the detailed development of sand area.The combination of structure interpretation and seismic attributes can evaluate the development of the trap reservoir.By the means of seismic attributes analysis above,we point out that five fault-stratigraphic traps existed at the second stage of sand formation,sand body as an important exploration aim is developed within each traps,and the A and C traps are the preferred target for the future exploration.
The Cretaceous Qingshuihe Formation in the eastern slope of Chepaizi area overlap from Shawan sag to high position of the uplift,and the distribution of the northwest-southeast striking faults as a row and belt shape are profitable to the fault-stratigraphic composite trap in this area.The seismic coherence technology is a tool to identify the small faults.The combination of frequency and amplitude attributes has ability to effectively identify the thin sand pinch-out line.the delta front sand body distribution at different stages of sand formation can be identified by the amplitude characteristics of along layer attribute to predict the detailed development of sand area.The combination of structure interpretation and seismic attributes can evaluate the development of the trap reservoir.By the means of seismic attributes analysis above,we point out that five fault-stratigraphic traps existed at the second stage of sand formation,sand body as an important exploration aim is developed within each traps,and the A and C traps are the preferred target for the future exploration.
引文
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[2]He Dengfa,Chen Xinfa,Kuang Jun,et al.Development andgenetic mechanism of Chepaizi-Mosuowan uplift in Junggarbasin[J].Earth Science Frontiers,2008,15(4):42-55.[何登发,陈新发,况军,等.准噶尔盆地车排子—莫索湾古隆起的形成演化与成因机制[J].地学前缘,2008,15(4):42-55.]
[4]Song Chuanchun,He Lunjun,Ma Liqun,et al.Characteristicof hydrocarbon accumulation of Chepaizi swell in Junggar ba-sin[J].Xinjiang Petroleum Geology,2007,28(2):136-138.[宋传春,贺伦俊,马立群,等.准噶尔盆地车排子凸起成藏特征[J].新疆石油地质,2007,28(2):136-138.]
[5]Yang Qinyong,Xu Liping.New advances on seismic explora-tion technology[J].Progress in Exploration Geophysics,2002,25(1):5-10.[杨勤勇,徐丽萍.地震勘探技术新进展[J].勘探地球物理进展,2002,25(1):5-10.]
[6]Yin Xingyao,Han Wengong,Li Zhenchun,et al.New Ad-vances on Seismic Technology[M].Beijing:Petroleum Uni-versity Press,2003:58-60.[印兴耀,韩文功,李振春,等.地震技术新进展[M].北京:石油大学出版社,2003:58-60.]
[7]Wu Yongping,Wang Chao.Application of 3D coherence cubetechnique in 3D seismic fine structural interpretation[J].Fault-Block Oil&Gas Field,2008,15(2):27-29.[吴永平,王超.三维相干体技术在三维精细构造解释中的应用[J].断块油气田,2008,15(2):27-29.]
[8]Wang Zhenqing,Wang Hongbin,Gong Hongling.Improve-ment of the coherency technique and its application in carbon-ate fracture reservoirs[J].Natural Gas Geoscience,2009,20(6):977-981.[王振卿,王宏斌,龚洪林.地震相干技术的发展及在碳酸盐岩裂缝型储层预测中的应用[J].天然气地球科学,2009,20(6):977-981.]
[9]Yang Guoquan,Gao Rongtao,Lei Ling,et al.Fine interpreta-tion and description of river facies reservoir[J].Oil Geophysi-cal Prospecting,2005,40(3):314-317.[杨国权,高荣涛,雷凌,等.河流相储集体的精细解释与描述[J].石油地球物理勘探,2005,40(3):314-317.]
[10]Zhang Yanling,Yang Changchun,Jia Shuguang.The application ofthe seismic attributes[J].Progress in Geophysics,2005,20(4):1129-1133.[张延玲,杨长春,贾曙光.地震属性技术的研究和应用[J].地球物理学进展,2005,20(4):1129-1133.]
[11]Liu Weifang,Yu Xinghe,He Qiongying.Application of seis-mic attributes in SU gas fifld development[J].Natural GasGeoscience,2006,17(6):862-867.[刘伟方,于兴河,何琼英.地震属性在SU气田开发中的应用[J].天然气地球科学,2006,17(6):862-867.]
[12]Chen Q,Sidney S.Seismic attribute technology for reservoirforecasting and monitoring[J].The Leading Edge,1997,16(5):445-456.
[13]Brown A R.Seismic attributes and their classification[J].TheLeading Edge,1996,15(10):1090.
[14]Chen Jianguang,Tang Zhihong,Liu Huaishan,et al.Applica-tion of coherence technique in seismic structural interpretation[J].Southern China Oil&Gas,2005,18(4):37-39.[陈剑光,唐之宏,刘怀山,等.相干技术在地震构造解释中的应用[J].南方油气,2005,18(4):37-39.]
[15]Han Fumin,Liu Zhongliang,Wang Daoyi,et al.Applicationand research of coherent volume interpretation technique incomplex fault block area[J].Journal of Jianghan PetroleumInstitute,2003,25(2):54-55.[韩福民,刘忠亮,王道义,等.复杂断块地区相干体解释技术的应用研究[J].江汉石油学院报,2003,25(2):54-55.]
[16]Hong Taiyuan,Wang Lichi.Study on the stratigraphic anddepositional features in Chepaizi uplift of western Junggar ba-sin[J].West China Petroleum Geosciences,2006,2(2):164-174.[洪太元,王离迟.准噶尔盆地西缘车排子地区地层沉积特征[J].中国西部油气地质,2006,2(2):164-174.]
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