鄂尔多斯盆地富县地区马五段古岩溶储层地震预测
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摘要
鄂尔多斯盆地富县地区马五段古岩溶储层具有低孔、低渗和非均质性强的特点,针对该区储层复杂的特点,利用实钻资料,通过精细的井震标定,总结碳酸盐岩储层的地震反射特征,提取对储层敏感的均方根振幅和瞬时频率属性,综合应用多参数地震属性回归方法对马五段古岩溶储层分布特征进行预测,以提高预测结果的可靠性.
Paleokarst reservoirs in the fifth member of the Ordovician Majiagou Formation of Fu County area in Ordos Basin are characterized by lower porosity,lower permeability and strong heterogeneity.Based on actual drilling data,the seismic reflection characteristics of paleokarst reservoir are obtained by means of fine seismic horizon calibration,from which and RMS amplitude and instantaneous frequency sensitive to the physical nature of and gas-bearing property reservoir are extracted.The distribution of the paleokarst reservoir in the fifth member of the Ordovician Majiagou Formation are predicted using multi-parameter seismic attribute repression,and the predicted results are proved by gas testing data,which shows that this reservoir prediciton method is reliable.
Paleokarst reservoirs in the fifth member of the Ordovician Majiagou Formation of Fu County area in Ordos Basin are characterized by lower porosity,lower permeability and strong heterogeneity.Based on actual drilling data,the seismic reflection characteristics of paleokarst reservoir are obtained by means of fine seismic horizon calibration,from which and RMS amplitude and instantaneous frequency sensitive to the physical nature of and gas-bearing property reservoir are extracted.The distribution of the paleokarst reservoir in the fifth member of the Ordovician Majiagou Formation are predicted using multi-parameter seismic attribute repression,and the predicted results are proved by gas testing data,which shows that this reservoir prediciton method is reliable.
引文
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[2]熊波,李贤庆,胡国艺,等.鄂尔多斯盆地中部气田奥陶系风化壳天然气成藏分析[J].西安石油大学学报:自然科学版,2008,23(4):10-14.XIONG Bo,LI Xian-qing,HU Guo-yi,et al.Analysis ofthe natural gas accumulation in the Ordovician weatheredcrust of the central gasfield in Ordos Basin[J].Journal ofXi'an Shiyou University:Natural Science Edition,2008,23(4):10-14.
[3]王敏,张丽艳,孙建孟,等.碳酸盐岩储层孔隙模型及孔隙结构指数研究进展[J].西安石油大学学报:自然科学版,2010,25(3):1-7.WANG Min,ZHANG Li-yan,SUN Jian-meng,et al.Re-search progress of Pore models and Pore structure expo-nent of carbonate reservoirs[J].Journal of Xi'an ShiyouUniversity:Natural Science Edition,2010,25(3):1-7.
[4]李晓燕,蒋有录,陈涛.古风化壳孔隙与裂缝发育特征及其油气地质意义[J].地球科学与环境学报,2010,32(1):60-64,88.LI Xiao-yan,JIANG You-lu,CHEN Tao.Characteristicsand petroleum geological significance of pores and fissuresdeveloped in the paleo weathered crust[J].Journal ofEarth Sciences and Environment,2010,32(1):60-64,88.
[5]武丽,于文芹,杨立强,等.地震属性分析技术在波斯湾盆地中部S区块储层预测中的应用[J].石油地球物理勘探,2008,43(5):557-560.WU Li,YU Wen-qin,YANG Li-qiang,et al.Applicationof seismic attributes analytic technique to reservoir predic-tion in some block of central part of Persian Gulf Basin[J].Oil Geophysical Prospecting,2008,43(5):557-560.
[6]王宏斌,张虎权,孙东,等.风化壳岩溶储层地质-地震综合预测技术与应用[J].天然气地球科学,2009,20(1):131-136.WANG Hong-bin,ZHANG Hu-quan,SUN Dong,et al.Application of integrated Seismic-geology prediction tech-niques to weathering crust karst reservoir-An examplefrom lower Ordovician,northern slope of Tazhong area[J].Natural Gas Geoscience,2009,20(1):131-136.
[7]蒋东,高培丞,曹刚,等.黄龙场地区长兴生物礁储层预测[J].西南石油大学学报:自然科学版,2009,31(2):5-7.JIANG Dong,GAO Pei-cheng,CAO Gang,et al.REEFreservoir prediction in Changxing formation of Huan-glongchang region[J].Journal of Southwest Petroleum U-niversity,2009,31(2):5-7.
[8]贺电波,李才,史浩.渤中21-2潜山储层地震预测技术应用研究[J].石油地质与工程,2010,24(2):54-57.HE Dian-bo,LI Cai,SHI Hao.Applied research on seis-mic reservoir prediction technique in buried-hill reservoirof BZ21-2 area[J].Petroleum Geology and Engineering,2010,24(2):54-57.
[9]张旭,杨辉廷,颜其彬.川北HBC构造飞三段地震属性分析[J].西南石油大学学报,2009,31(1):45-46.ZHANG Xu,YANG Hui-ting,YAN Qi-bin.Analysis ofseism IC attribute of t1f3 HBC structure in the north Si-chuan[J].Journal of Southwest Petroleum University,2009,31(1):45-46.
[10]马伯林,陆明华,舒福明,等.地震属性分析在块碳酸盐岩储层研究中的应用[J].安徽地质,2007,62(1):40-45.MA Bo-lin,LU Ming-hua,SHU Fu-ming,et al.Applicationof seismic attribute analyses in the study of the carbonaterock reservoir in yemenⅰblock[J].Geology of Anhui,2007,62(1):40-45.
[11]刘伟方,段永华,高建虎,等.利用地震属性预测碳酸盐岩储层[J].岩性油气藏,2007,19(1):101-104.LIU Wei-fang,DUAN Yong-hua,GAO Jian-hu,et al.Amethod study of carbonate reservoir identification by usingpost-stack seismic data[J].Lithologic Reservoirs,2007,19(1):101-104.
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