地震属性方法在油田开发阶段薄砂体识别中的应用——以印尼苏门答腊盆地Gemah油田M油层为例
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摘要
印度尼西亚南苏门答腊盆地Jabung地区西北部油区的Gemah油田Lower Tanglang Aka油层组储层砂体厚度较薄,一般为5~10 m,部分小于5 m,且横向变化快。找准这些储集砂体是油田开发取得油气产量的关键因素;应用地震属性确定砂体分布既是油气开发的关键之一,也是难题之一。将地震波形分类、本征值相干体属性分析等新技术,应用于薄层砂体的识别,据此部署钻井5口,实钻与预测吻合良好,实践证实,结合测井资料,进行地震属性综合分析,是油田开发中识别薄层砂体的有效方法。
In the LTA Formation of Gemah oilfield,northwest Jabung area of Sumatrina basin of Indonesia,reservoir sand layers are relatively thin,with the thickness of about 5-10 meters in generally,less than 5 meters in some parts and quickly lateral variation.To find out the reservoir sand is the major work to achieve a good oil and gas product;the seismic technology is the key method to identify the distribution of sand layer and also is a big challenge.In this paper,seismic waveform classification and eigenvalue coherency cube have been applied to identify the thin sand layer.Five wells were drilled based on this method,and the outcomes of two wells are consistent with the prediction,which confirms that the integration of multi seismic attributes is a good method for identifying thin sand layer.
In the LTA Formation of Gemah oilfield,northwest Jabung area of Sumatrina basin of Indonesia,reservoir sand layers are relatively thin,with the thickness of about 5-10 meters in generally,less than 5 meters in some parts and quickly lateral variation.To find out the reservoir sand is the major work to achieve a good oil and gas product;the seismic technology is the key method to identify the distribution of sand layer and also is a big challenge.In this paper,seismic waveform classification and eigenvalue coherency cube have been applied to identify the thin sand layer.Five wells were drilled based on this method,and the outcomes of two wells are consistent with the prediction,which confirms that the integration of multi seismic attributes is a good method for identifying thin sand layer.
引文
①杨福忠,张铭,田鑫,等.中油印尼区块成藏条件分析与部署研究.中油海外研究中心,2004.
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[9]Cai Gang,Sun Dong,Pei Mingli,et al.Coherence cube tech-nique and it′s application hydrocarbon exploration field[J].Natural Gas Geoscience,2006,17(4):510-516.[蔡刚,孙东,裴明利,等.相干体技术在油气勘探中的应用[J].天然气地球科学,2006,17(4):510-516.]
[10]Liu Xianbin,Lin Jincheng,Han Chunming,et al.Present con-ditions and prospects of the researches on seismic reservoir[J].Acta Geosicientia Sinica,2003,13(3):152-158.[刘宪斌,林金逞,韩春明,等.地震储层研究的现状及展望[J].地球学报,2003,13(3):152-158.]
[11]Chen Xinfa,Qu Guosheng,Ma Zongjin,et al.Tectonic frame-works and potential oil-gas traps in Junggar basin[J].Xin-jiang Petroleum Geology,2008,29(4):425-430.[陈新发,曲国胜,马宗晋,等.准噶尔盆地构造格局与油气区带预测[J].新疆石油地质,2008,29(4):425-430.]
[12]Liu Weifang,Yu Xinghe,He Qiongying,et al.Application ofseismic attributes in SU gas field development[J].NaturalGas Geoscience,2006,17(6):862-867.[刘伟方,于兴河,何琼英,等,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.]
[13]Yu Xiaowei,Zheng Xiaodong,Li Yandong.Using opti mizedseismic attributes to predict reef reservoir[J].Xinjiang Petro-leum Geology,2009,30(2):221-224.[尉晓玮,郑晓东,李艳东.优选地震属性预测生物礁储集层[J].新疆石油地质,2009,30(2):221-224.]
[1]Xue Liangqing,Ma Haizhen,Yang Fuzhong,et al.Petroleumplay analysis of the PetroChina contract blocks in the southSumatra basin[J].Petroleum Exploration and Development,2005,10(3):178-184.[薛良清,马海珍,杨福忠,等.南苏门答腊盆地中国石油合同区块成藏组合分析[J].石油勘探与开发,2005,10(3):178-184.]
[2]Zou Caineng,Zhang Yin.New Techniques of Petroleum Ex-ploration and Development[M].Beijing:Petroleum IndustryPress,2002:178-220.[邹才能,张颖.油气勘探开发实用新技术[M].北京:石油工业出版社,2002:178-220.]
[3]Liu Zhen.Reservoir Seismic Stratigraphy[M].Beijing:Geo-logical Publishing House,1997:97-135.[刘震,储层地震地层学[M].北京:地质出版社,1997:97-135.]
[4]Ling Yun.Study on application of basie seismic attributes tointerpretation of depositional environment[J].Oil GeophysicalProspecting,2003,38(6):642-653.[凌云.基本地震属性在沉积环境解释中的应用研究[J].石油地球物理勘探,2003,38(6):642-653.]
[5]Huang Yunfeng,Yang Zhanlong,Guo Jingyi,et al.Seismicattribute analysis and application in subtle traps exploration[J].Natural Gas Geoscience,2006,17(5):739-745.[黄云峰,杨占龙,郭精义,等.地震属性分析及其在岩性油气藏勘探中的应用[J].天然气地球科学,2006,17(5):739-745.]
[6]Dong Wenjie,Ali Tura,Gene Sparkman.An introduction car-bonate geophysics[J].The Leading Edge,2003,(7):637-638,725-728.
[7]Galloway WE.Genetic stratigraphic sequencesin basin analy-sis I:Architecture and genesis of flooding-surface boundeddeposional units[J].AAPG Bulletin,1989,73(2):125-142.
[8]Li Qingzhong.Discussion on seismic exploration of lithologicreservoirs[J].Lithologic Reservoirs,2008,20(2):45-54.[李庆忠.岩性油气藏地震勘探若干问题讨论[J].岩性油气藏,2008,20(2):45-54.]
[9]Cai Gang,Sun Dong,Pei Mingli,et al.Coherence cube tech-nique and it′s application hydrocarbon exploration field[J].Natural Gas Geoscience,2006,17(4):510-516.[蔡刚,孙东,裴明利,等.相干体技术在油气勘探中的应用[J].天然气地球科学,2006,17(4):510-516.]
[10]Liu Xianbin,Lin Jincheng,Han Chunming,et al.Present con-ditions and prospects of the researches on seismic reservoir[J].Acta Geosicientia Sinica,2003,13(3):152-158.[刘宪斌,林金逞,韩春明,等.地震储层研究的现状及展望[J].地球学报,2003,13(3):152-158.]
[11]Chen Xinfa,Qu Guosheng,Ma Zongjin,et al.Tectonic frame-works and potential oil-gas traps in Junggar basin[J].Xin-jiang Petroleum Geology,2008,29(4):425-430.[陈新发,曲国胜,马宗晋,等.准噶尔盆地构造格局与油气区带预测[J].新疆石油地质,2008,29(4):425-430.]
[12]Liu Weifang,Yu Xinghe,He Qiongying,et al.Application ofseismic attributes in SU gas field development[J].NaturalGas Geoscience,2006,17(6):862-867.[刘伟方,于兴河,何琼英,等,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.]
[13]Yu Xiaowei,Zheng Xiaodong,Li Yandong.Using opti mizedseismic attributes to predict reef reservoir[J].Xinjiang Petro-leum Geology,2009,30(2):221-224.[尉晓玮,郑晓东,李艳东.优选地震属性预测生物礁储集层[J].新疆石油地质,2009,30(2):221-224.]
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