基于时频电磁法的富有机质页岩层系勘探进一步研究
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摘要
为了发挥非地震勘探技术成本低、效率高的优势,检验电法勘探技术在页岩气勘探中的有效性,分别于2011、2012年对分布于四川盆地南部的志留系龙马溪组-奥陶系五峰组、寒武系牛蹄塘组两套典型富有机质页岩层系进行了时频电磁法(Time-Frequency Electromagnetic Method,TFEM)页岩气勘探试验。岩石样本研究表明,这两套页岩层系具有较为明显的低密度、低磁化率、高极化率、高TOC、相对高电阻率,即"两低、两高、一相对高"的物性特征。2012年进行的面积时频电磁法勘探试验结果与2011年完成的二维时频电磁法勘探试验结果均表明,试验区分布的志留系龙马溪组-奥陶系五峰组层系具有高极化率与相对高电阻率异常分布特征。以时频电磁法勘探获取的高极化率异常为主,通过多参数评价,预测了试验区两套目标层系的TOC高值分布区。
In order to verify the availability of electric exploration technique as well as to exert the advantages of high-efficiency and low-cost of integrated exploration techniques,typical organic-rich shale in Longmaxi Formation of Silurian System,Wufeng Formation of Ordovician System and Niutitang Formation of Cambrian System in Southern Sichuan Basin are selected as the shale gas exploration test area in 2011 and 2012respectively.We firstly analyze and summarize the petrophysical features of gas shale,then conduct the lithology investigation and TFEM test work.This paper releases a step forward test results in 2012.The physical property data of the test area illustrates that the organic-rich shale in Longmaxi Formation,Wufeng Formation and Niutitang Formation shows low density,low magnetic susceptibility,high polarization ratio,high TOC and relative high resistivity(two-lows,two-highs and one relative high).Both the linear TFEM test in 2011 and the area TFEM test in 2012 show high polarization ratio and relative high resistivity in Longmaxi Formation and Wufeng Formation at the area.Based on the TFEM test data in 2012,the high TOC area is preliminarily evaluated and predicted to the target Longmaxi-Wufeng Formation and Niutitang Formation.
In order to verify the availability of electric exploration technique as well as to exert the advantages of high-efficiency and low-cost of integrated exploration techniques,typical organic-rich shale in Longmaxi Formation of Silurian System,Wufeng Formation of Ordovician System and Niutitang Formation of Cambrian System in Southern Sichuan Basin are selected as the shale gas exploration test area in 2011 and 2012respectively.We firstly analyze and summarize the petrophysical features of gas shale,then conduct the lithology investigation and TFEM test work.This paper releases a step forward test results in 2012.The physical property data of the test area illustrates that the organic-rich shale in Longmaxi Formation,Wufeng Formation and Niutitang Formation shows low density,low magnetic susceptibility,high polarization ratio,high TOC and relative high resistivity(two-lows,two-highs and one relative high).Both the linear TFEM test in 2011 and the area TFEM test in 2012 show high polarization ratio and relative high resistivity in Longmaxi Formation and Wufeng Formation at the area.Based on the TFEM test data in 2012,the high TOC area is preliminarily evaluated and predicted to the target Longmaxi-Wufeng Formation and Niutitang Formation.
引文
[1]Brown M P,Higginbotham J H,Macesanu C M,et al.PSDM for unconventional reservoirs?A Niobrara Shale case study[J].Expanded Abstracts of 82nd Annual Internat SEG Mtg,2012,1-5
[2]杨贵祥.碳酸盐岩裸露区地震勘探采集方法[J].地球物理学进展,2005,20(4):1108-1128Yang G X.The method of seismic exploration in the bare carbonate rock area[J].Progress in Geophysics,2005,20(4):1108-1128
[3]李林新.南方海相碳酸盐岩油气区地震采集面临的问题和对策[J].石油物探,2005,44(5):529-537Li L X.The problem and countermeasure in seismic survey in southern marine carbonate area of China[J].Geophysical Prospecting for Petroleum,2005,44(5):529-537
[4]刘光鼎,张丽莉,祝靓谊.试论复杂地质体的油气地震勘探[J].地球物理学进展,2006,21(3):683-686Liu G D,Zhang L L,Zhu L Y.Seismic prospecting for oil and gas on the complex geological bodies[J].Progress in Geophysics,2006,21(3):683-686
[5]冉隆辉,谢姚祥,王兰生.从四川盆地解读中国南方海相碳酸盐岩油气勘探[J].石油与天然气地质,2006,27(3):289-294Ran L H,Xie Y X,Wang L S.Understanding exploration of marine carbonate reservoirs in South China through Sichuan Basin[J].Oil&Gas Geology,2006,27(3):289-294
[6]朱铉.中国南方海相油气区地震勘探中的问题与对策[J].勘探地球物理进展,2008,31(5):317-329Zhu X.Problems of seismic exploration for marine hydrocarbon reservoirs in southern China and some countermeasures[J].Progress in Exploration Geophysics,2008,31(5):317-329
[7]李志荣,邓小江,杨晓,等.四川盆地南部页岩气地震勘探新进展[J].天然气工业,2011,31(4):40-43Li Z R,Deng X J,Ynag X,et al.New progress in seismic exploration of shale gas reservoirs in the southern Sichuan Basin[J].Natural Gas Industry,2011,31(4):40-43
[8]胡起,陈小宏,李景叶,等.基于各向异性岩石物理模型的页岩气储层横波速度预测[J].石油物探,2014,53(3):254-261Hu Q,Chen X H,Li J Y,et al.Shear wave velocity prediction for shale gas reservoirs based on anisotropic rock physics model[J].Geophysical Prospecting for Petroleum,2014,53(3):254-261
[9]袁书坤,陈开远,Hardage B A,等.北美Marcellus页岩气藏多波勘探天然微裂缝检测[J].石油物探,2014,53(5):587-594Yuan S K,Chen K Y,Hardage B A,et al.Application of multi-wave exploration technology to detect the natural micro-fracture in Marcellus shale-gas reservoirs[J].Geophysical Prospecting for Petroleum,2014,53(5):587-594
[10]张春贺,刘雪军,何兰芳,等.基于时频电磁法的富有机质页岩层系勘探研究[J].地球物理学报,2013,56(9):3173-3183Zhang C H,Liu X J,He L F,et a1.A study of exploration organic rich shales using time-frequency electromagnetic method(TFEM)[J].Chinese Journal of Geophysics,2013,56(9):3173-3183
[11]张静平,唐书恒,郭东鑫.四川盆地下古生界筇竹寺组与龙马溪组页岩气勘探优选区预测[J].地质通报,2011,31(2):357-363Zhang J P,Tang S H,Guo D X.Shale gas favorable area prediction of the Qiongzhusi Formation and Longmaxi Formation of Lower Palaeozoic in Sichuan Basin,China[J].Geological Bulletin of China,2011,31(2):357-363
[12]郭彤楼,张汉荣.四川盆地焦石坝页岩气田形成与富集高产模式[J].石油勘探与开发,2014,41(1):28-36Guo T L,Zhang H R.Formation and enrichment mode of Jiaoshiba shale gas field,Sichuan Basin[J].Petroleum Exploration and Development,2014,41(1):28-36
[13]郭旭升,胡东风,文治东,等.四川盆地及周缘下古生界海相页岩气富集高产主控因素——以焦石坝地区五峰组-龙马溪组为例[J].中国地质,2014,41(3):893-901Guo X S,Hu D F,Wen Z D,et al.Major factors controlling the accumulation and high productivity in marine shale gas in the Lower Palaeozoic of Sichuan Basin and its periphery:a case study of the WufengLongmaxi Formation of Jiaoshiba area[J].Chinese Geology,2014,41(3):893-901
[14]董大忠,高世葵,黄金亮,等.论四川盆地页岩气资源勘探开发前景[J].天然气工业,2014,34(12):1-15Dong D Z,Gao S K,Huang J L,et a1.A discussion on the shale gas exploration&development prospect in the Sichuan Basin[J].Natural Gas Industry,2014,34(12):1-15
[15]翟光明.中国石油地质志(卷十):四川油气区[M].北京:石油工业出版社,1989:28-109,224-480Zhai G M.Petroleum geology of China(Vol 10):Sichuan oil and gas area[M].Beijing:Petroleum Industry Press,1989:28-109,224-480
[16]张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156Zhang J C,Nie H K,Xu B,et a1.Geological condition of shale gas accumulation in Sichuan Basin[J].Natural Gas Industry,2008,28(2):151-156
[17]邹才能,董大忠,王社教,等.中国页岩气形成机理、地质特征及资源潜力[J].石油勘探与开发,2010,37(6):641-653Zou C N,Dong D Z,Wang S J,et a1.Geological characteristics,formation mechanism and resource potential of shale gas in China[J].Petroleum Exploration and Development,2010,37(6):641-653
[18]邹才能,董大忠,杨桦,等.中国页岩气形成条件及勘探实践[J].天然气工业,2011,31(12):26-39Zou C N,Dong D Z,Yang H,et a1.Conditions of shale gas accumulation and exploration practices in China[J].Natural Gas Industry,2011,31(12):26-39
[2]杨贵祥.碳酸盐岩裸露区地震勘探采集方法[J].地球物理学进展,2005,20(4):1108-1128Yang G X.The method of seismic exploration in the bare carbonate rock area[J].Progress in Geophysics,2005,20(4):1108-1128
[3]李林新.南方海相碳酸盐岩油气区地震采集面临的问题和对策[J].石油物探,2005,44(5):529-537Li L X.The problem and countermeasure in seismic survey in southern marine carbonate area of China[J].Geophysical Prospecting for Petroleum,2005,44(5):529-537
[4]刘光鼎,张丽莉,祝靓谊.试论复杂地质体的油气地震勘探[J].地球物理学进展,2006,21(3):683-686Liu G D,Zhang L L,Zhu L Y.Seismic prospecting for oil and gas on the complex geological bodies[J].Progress in Geophysics,2006,21(3):683-686
[5]冉隆辉,谢姚祥,王兰生.从四川盆地解读中国南方海相碳酸盐岩油气勘探[J].石油与天然气地质,2006,27(3):289-294Ran L H,Xie Y X,Wang L S.Understanding exploration of marine carbonate reservoirs in South China through Sichuan Basin[J].Oil&Gas Geology,2006,27(3):289-294
[6]朱铉.中国南方海相油气区地震勘探中的问题与对策[J].勘探地球物理进展,2008,31(5):317-329Zhu X.Problems of seismic exploration for marine hydrocarbon reservoirs in southern China and some countermeasures[J].Progress in Exploration Geophysics,2008,31(5):317-329
[7]李志荣,邓小江,杨晓,等.四川盆地南部页岩气地震勘探新进展[J].天然气工业,2011,31(4):40-43Li Z R,Deng X J,Ynag X,et al.New progress in seismic exploration of shale gas reservoirs in the southern Sichuan Basin[J].Natural Gas Industry,2011,31(4):40-43
[8]胡起,陈小宏,李景叶,等.基于各向异性岩石物理模型的页岩气储层横波速度预测[J].石油物探,2014,53(3):254-261Hu Q,Chen X H,Li J Y,et al.Shear wave velocity prediction for shale gas reservoirs based on anisotropic rock physics model[J].Geophysical Prospecting for Petroleum,2014,53(3):254-261
[9]袁书坤,陈开远,Hardage B A,等.北美Marcellus页岩气藏多波勘探天然微裂缝检测[J].石油物探,2014,53(5):587-594Yuan S K,Chen K Y,Hardage B A,et al.Application of multi-wave exploration technology to detect the natural micro-fracture in Marcellus shale-gas reservoirs[J].Geophysical Prospecting for Petroleum,2014,53(5):587-594
[10]张春贺,刘雪军,何兰芳,等.基于时频电磁法的富有机质页岩层系勘探研究[J].地球物理学报,2013,56(9):3173-3183Zhang C H,Liu X J,He L F,et a1.A study of exploration organic rich shales using time-frequency electromagnetic method(TFEM)[J].Chinese Journal of Geophysics,2013,56(9):3173-3183
[11]张静平,唐书恒,郭东鑫.四川盆地下古生界筇竹寺组与龙马溪组页岩气勘探优选区预测[J].地质通报,2011,31(2):357-363Zhang J P,Tang S H,Guo D X.Shale gas favorable area prediction of the Qiongzhusi Formation and Longmaxi Formation of Lower Palaeozoic in Sichuan Basin,China[J].Geological Bulletin of China,2011,31(2):357-363
[12]郭彤楼,张汉荣.四川盆地焦石坝页岩气田形成与富集高产模式[J].石油勘探与开发,2014,41(1):28-36Guo T L,Zhang H R.Formation and enrichment mode of Jiaoshiba shale gas field,Sichuan Basin[J].Petroleum Exploration and Development,2014,41(1):28-36
[13]郭旭升,胡东风,文治东,等.四川盆地及周缘下古生界海相页岩气富集高产主控因素——以焦石坝地区五峰组-龙马溪组为例[J].中国地质,2014,41(3):893-901Guo X S,Hu D F,Wen Z D,et al.Major factors controlling the accumulation and high productivity in marine shale gas in the Lower Palaeozoic of Sichuan Basin and its periphery:a case study of the WufengLongmaxi Formation of Jiaoshiba area[J].Chinese Geology,2014,41(3):893-901
[14]董大忠,高世葵,黄金亮,等.论四川盆地页岩气资源勘探开发前景[J].天然气工业,2014,34(12):1-15Dong D Z,Gao S K,Huang J L,et a1.A discussion on the shale gas exploration&development prospect in the Sichuan Basin[J].Natural Gas Industry,2014,34(12):1-15
[15]翟光明.中国石油地质志(卷十):四川油气区[M].北京:石油工业出版社,1989:28-109,224-480Zhai G M.Petroleum geology of China(Vol 10):Sichuan oil and gas area[M].Beijing:Petroleum Industry Press,1989:28-109,224-480
[16]张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156Zhang J C,Nie H K,Xu B,et a1.Geological condition of shale gas accumulation in Sichuan Basin[J].Natural Gas Industry,2008,28(2):151-156
[17]邹才能,董大忠,王社教,等.中国页岩气形成机理、地质特征及资源潜力[J].石油勘探与开发,2010,37(6):641-653Zou C N,Dong D Z,Wang S J,et a1.Geological characteristics,formation mechanism and resource potential of shale gas in China[J].Petroleum Exploration and Development,2010,37(6):641-653
[18]邹才能,董大忠,杨桦,等.中国页岩气形成条件及勘探实践[J].天然气工业,2011,31(12):26-39Zou C N,Dong D Z,Yang H,et a1.Conditions of shale gas accumulation and exploration practices in China[J].Natural Gas Industry,2011,31(12):26-39