车排子地区火成岩油气成藏条件及勘探关键技术
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摘要
准噶尔盆地西缘车排子地区石炭系火成岩勘探存在较多难题。其石炭系火成岩储层地震反射杂乱,预测火成岩有利储层分布及裂缝有利发育区的难度较大。根据钻井和地震资料,利用重磁电预测技术和地震预测技术等对车排子地区石炭系火成岩的烃源岩条件、油气成藏条件及勘探关键技术等进行研究,结果表明,研究区自海西期形成以来长期继承性隆起,是油气的有利运移指向区;昌吉凹陷和四棵树凹陷的油气通过断层和裂缝运移至石炭系火成岩裂缝—孔隙型储层中聚集成藏;研究区石炭系火成岩具有生烃条件,可以提供油源形成自生自储型油气藏。车排子地区石炭系发育巨厚火成岩,并已获得工业油气流;其火成岩储层的含油气性主要与裂缝发育程度成正相关。根据研究区石炭系火成岩储层、断裂破碎带及裂缝分布的预测结果,已成功钻探32口井,其中11口井获得工业油气流,已上报控制石油地质储量6 101×104t。
The difficulty of Carboniferous igneous exploration in the Chepaizi area which is located in the west edge of Junggar Basin was studied. The seismic reflection of reservoir rock is clutter,so it is difficult to predict the favorable reservoir and crack areas. According to the drilling and seismic data,the gravity,magnetic,electric data and the seismic prediction technology were used to study hydrocarbon source rock conditions,hydrocarbon accumulation conditions and the key exploration technologies of the igneous rocks. The results showed that the study area was uplifted successively in a long term since it was formed during the Hercynian,and it is favorable for hydrocarbon migration. The oil and gas from Changji sag and Sikeshu sag migrated into fractured-porous reservoirs of igneous rock through faults and fractures and then accumulated there. The igneous rocks should have hydrocarbon generating conditions,which maybe provide oil source and was able to form a self-sourced and self-reservoired oil and gas pool. The industrial oil and gas obtained from the thick igneous rock developed in Carboniferous in the Chepaizi area. The oil-bearing property of the igneous rock reservoir is mainly correlated with the degree of fractures development. According to the predicted results of igneous rock reservoir,fracture zone and crack distribution,32 wells were drilled successfully,among which 11 wells were drilled at industrial oil and gas. The controlled geological oil reserves were reported to be 6 101×104t.
The difficulty of Carboniferous igneous exploration in the Chepaizi area which is located in the west edge of Junggar Basin was studied. The seismic reflection of reservoir rock is clutter,so it is difficult to predict the favorable reservoir and crack areas. According to the drilling and seismic data,the gravity,magnetic,electric data and the seismic prediction technology were used to study hydrocarbon source rock conditions,hydrocarbon accumulation conditions and the key exploration technologies of the igneous rocks. The results showed that the study area was uplifted successively in a long term since it was formed during the Hercynian,and it is favorable for hydrocarbon migration. The oil and gas from Changji sag and Sikeshu sag migrated into fractured-porous reservoirs of igneous rock through faults and fractures and then accumulated there. The igneous rocks should have hydrocarbon generating conditions,which maybe provide oil source and was able to form a self-sourced and self-reservoired oil and gas pool. The industrial oil and gas obtained from the thick igneous rock developed in Carboniferous in the Chepaizi area. The oil-bearing property of the igneous rock reservoir is mainly correlated with the degree of fractures development. According to the predicted results of igneous rock reservoir,fracture zone and crack distribution,32 wells were drilled successfully,among which 11 wells were drilled at industrial oil and gas. The controlled geological oil reserves were reported to be 6 101×104t.
引文
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[14]郗爱华,刘豇瑜,熊益学,等.火山熔岩储层次生孔隙类型的岩相学研究——以克拉美丽气田石炭系滴西17井区为例[J].特种油气藏,2012,19(5):26-29.Xi Aihua,Liu Jiangyu,Xiong Yixue,et al.Petrography study on the secondary pore types of volcanic lava reservoirs-a case study from Carboniferous well block Dixi17 of Kelameili gasfield[J].Special Oil&Gas Reservoirs,2012,19(5):26-29.
[15]胡振华.辽河坳陷东部凹陷沙三段火成岩成因及储集特征[J].油气地质与采收率,2014,21(4):46-49.Hu Zhenhua.Genetic analysis and reservoir characteristics of Sha3 igneous in eastern sag of Liaohe depression[J].Petroleum Geology and Recovery Efficiency,2014,21(4):46-49.
[16]刘爱永,李令喜,杨国臣,等.查干凹陷苏红图组火山岩储层及其油气成藏特征[J].油气地质与采收率,2014,21(4):54-57.Liu Aiyong,Li Lingxi,Yang Guochen,et al.Study of volcano rock reservoir and oil and gas accumulation characteristics of Suhongtu member in Chagan depression[J].Petroleum Geology and Recovery Efficiency,2014,21(4):54-57.
[17]周动力,汪勇,张秀波.火成岩有利储层与油气成藏分析[J].油气地质与采收率,2010,17(5):6-10.Zhou Dongli,Wang Yong,Zhang Xiubo.Analysis on favorable reservoir and accumulation model of igneous reservoir[J].Petroleum Geology and Recovery Efficiency,2010,17(5):6-10.
[18]葛岩,刘成林,谢英刚,等.柴达木盆地石炭系油气勘探前景[J].油气地质与采收率,2014,21(2):57-61.Ge Yan,Liu Chenglin,Xie Yinggang,et al.Exploration prospect of Carboniferous oil and gas exploration in Qaidam basin[J].Petroleum Geology and Recovery Efficiency,2014,21(2):57-61.
[19]田守嶒,李根生,黄中伟,等.水力喷射压裂机理与技术研究进展[J].石油钻采工艺,2008,30(1):58-62.Tian Shouceng,Li Gensheng,Huang Zhongwei,et al.Research on hydrajet fracturing mechanisms and technologies[J].Oil Drilling&Production Technology,2008,30(1):58-62.
[20]崔传智,王秀坤,杨勇,等.低渗透油藏高含水期层间径向钻孔油藏工程优化研究[J].油气地质与采收率,2014,21(5):61-64.Cui Chuanzhi,Wang Xiukun,Yang Yong,et al.Optimization of radial drilling branch number and length in low permeability reservoirs during high water cut period[J].Petroleum Geology and Recovery Efficiency,2014,21(5):61-64.
[21]于士泉,李伟,钟琳,等.徐深气田火山岩气藏水平井开发优化设计技术[J].大庆石油地质与开发,2013,32(1):71-75.Yu Shiquan,Li Wei,Zhong Lin,et al.Optimized design technique for the horizontal well development in Xushen volcanic gas reservoirs[J].Petroleum Geology&Oilfield Development in Daqing,2013,32(1):71-75.
[2]董臣强,尚新民,刘立平.地震资料的保真性分析与检验[J].石油物探,2013,52(3):253-258.Dong Chenqiang,Shang Xinmin,Liu Liping.Seismic data processing fidelity analysis and verification[J].Geophysical Prospecting for Petroleum,2013,52(3):253-258.
[3]万丛礼,金强,李钜源,等.裂谷盆地岩浆活动控制油气概论[J].油气地质与采收率,2014,21(5):1-5.Wan Congli,Jin Qiang,Li Juyuan,et al.Outline on magmatic activities controlling oil-gas theory in rift basins[J].Petroleum Geology and Recovery Efficiency,2014,21(5):1-5.
[4]侯连华,邹才能,刘磊,等.新疆北部石炭系火山岩风化壳油气地质条件[J].石油学报,2012,33(4):533-540.Hou Lianhua,Zou Caineng,Liu Lei,et al.Geologic essential elements for hydrocarbon accumulation within Carboniferous volcanic weathered crusts in northern Xinjiang,China[J].Acta Petrolei Sinica,2012,33(4):533-540.
[5]李江海,王洪浩,李维波,等.显生宙全球古板块再造及构造演化[J].石油学报,2014,35(2):207-218.Li Jianghai,Wang Honghao,Li Weibo,et al.Discussion on global tectonics evolution from plate reconstruction in Phanerozoic[J].Acta Petrolei Sinica,2014,35(2):207-218.
[6]王书荣,宋到福,何登发.三塘湖盆地火山灰对沉积有机质的富集效应及凝灰质烃源岩发育模式[J].石油学报,2013,34(6):1 077-1 087.Wang Shurong,Song Daofu,He Dengfa.The enrichment effect of organic materials by volcanic ash in sediments of the Santanghu Basin and the evolutionary pattern of tuffaceous source rocks[J].Acta Petrolei Sinica,2013,34(6):1 077-1 087.
[7]颜世翠.准噶尔盆地东北缘石炭纪古盐度与古环境[J].油气地质与采收率,2013,20(5):60-63.Yan Shicui.Paleo-salinity and paleo-environmental analysis of Carboniferous in northeast Junggar basin[J].Petroleum Geology and Recovery Efficiency,2013,20(5):60-63.
[8]国建英,李志明.准噶尔盆地石炭系烃源岩特征及气源分析[J].石油实验地质,2009,31(3):275-281.Guo Jianying,Li Zhiming.Study of gas source and characteristics of Carboniferous hydrocarbon source rock in the Jungar Basin[J].Petroleum Geology&Experiment,2009,31(3):275-281.
[9]李政,张林晔,沈忠民,等.准噶尔盆地车排子凸起轻质油母源及充注方向[J].石油实验地质,2011,33(4):419-423.Li Zheng,Zhang Linye,Shen Zhongmin,et al.Source and migrating direction of light oil in Chepaizi Uplift,Junggar Basin[J].Petroleum Geology&Experiment,2011,33(4):419-423.
[10]赵磊,孙樯,季建清,等.新疆西准噶尔地区晚古生代残余洋盆生烃潜力[J].油气地质与采收率,2013,20(6):35-37,41.Zhao Lei,Sun Qiang,Ji Jianqing,et al.Hydrocarbon-generating potentials analysis on late Paleozoic residual ocean basin in West Junggar[J].Petroleum Geology and Recovery Efficiency,2013,20(6):35-37,41.
[11]刘传虎.准噶尔盆地隐蔽油气藏类型及有利勘探区带[J].石油实验地质,2014,36(1):25-32.Liu Chuanhu.Subtle reservoir type and favorable exploration belts in Junggar Basin[J].Petroleum Geology&Experiment,2014,36(1):25-32.
[12]张波,吴智平,刘华.火成岩在阳信洼陷油气成藏中的地质意义[J].特种油气藏,2014,21(4):80-84.Zhang Bo,Wu Zhiping,Liu Hua.Geological significance of igneous rock to oil/gas reservoir-forming in Yangxin Sag[J].Special Oil&Gas Reservoirs,2014,21(4):80-84.
[13]王伟锋,高斌,卫平生,等.火山岩油气藏地球物理预测技术及准噶尔勘探实例[J].中国石油大学学报:自然科学版,2012,36(6):33-39.Wang Weifeng,Gao Bin,Wei Pingsheng,et al.Geophysical prediction technologies for volcanic reservoirs and exploration case in Junggar Basin[J].Journal of China University of Petroleum:Edition of Natural Science,2012,36(6):33-39.
[14]郗爱华,刘豇瑜,熊益学,等.火山熔岩储层次生孔隙类型的岩相学研究——以克拉美丽气田石炭系滴西17井区为例[J].特种油气藏,2012,19(5):26-29.Xi Aihua,Liu Jiangyu,Xiong Yixue,et al.Petrography study on the secondary pore types of volcanic lava reservoirs-a case study from Carboniferous well block Dixi17 of Kelameili gasfield[J].Special Oil&Gas Reservoirs,2012,19(5):26-29.
[15]胡振华.辽河坳陷东部凹陷沙三段火成岩成因及储集特征[J].油气地质与采收率,2014,21(4):46-49.Hu Zhenhua.Genetic analysis and reservoir characteristics of Sha3 igneous in eastern sag of Liaohe depression[J].Petroleum Geology and Recovery Efficiency,2014,21(4):46-49.
[16]刘爱永,李令喜,杨国臣,等.查干凹陷苏红图组火山岩储层及其油气成藏特征[J].油气地质与采收率,2014,21(4):54-57.Liu Aiyong,Li Lingxi,Yang Guochen,et al.Study of volcano rock reservoir and oil and gas accumulation characteristics of Suhongtu member in Chagan depression[J].Petroleum Geology and Recovery Efficiency,2014,21(4):54-57.
[17]周动力,汪勇,张秀波.火成岩有利储层与油气成藏分析[J].油气地质与采收率,2010,17(5):6-10.Zhou Dongli,Wang Yong,Zhang Xiubo.Analysis on favorable reservoir and accumulation model of igneous reservoir[J].Petroleum Geology and Recovery Efficiency,2010,17(5):6-10.
[18]葛岩,刘成林,谢英刚,等.柴达木盆地石炭系油气勘探前景[J].油气地质与采收率,2014,21(2):57-61.Ge Yan,Liu Chenglin,Xie Yinggang,et al.Exploration prospect of Carboniferous oil and gas exploration in Qaidam basin[J].Petroleum Geology and Recovery Efficiency,2014,21(2):57-61.
[19]田守嶒,李根生,黄中伟,等.水力喷射压裂机理与技术研究进展[J].石油钻采工艺,2008,30(1):58-62.Tian Shouceng,Li Gensheng,Huang Zhongwei,et al.Research on hydrajet fracturing mechanisms and technologies[J].Oil Drilling&Production Technology,2008,30(1):58-62.
[20]崔传智,王秀坤,杨勇,等.低渗透油藏高含水期层间径向钻孔油藏工程优化研究[J].油气地质与采收率,2014,21(5):61-64.Cui Chuanzhi,Wang Xiukun,Yang Yong,et al.Optimization of radial drilling branch number and length in low permeability reservoirs during high water cut period[J].Petroleum Geology and Recovery Efficiency,2014,21(5):61-64.
[21]于士泉,李伟,钟琳,等.徐深气田火山岩气藏水平井开发优化设计技术[J].大庆石油地质与开发,2013,32(1):71-75.Yu Shiquan,Li Wei,Zhong Lin,et al.Optimized design technique for the horizontal well development in Xushen volcanic gas reservoirs[J].Petroleum Geology&Oilfield Development in Daqing,2013,32(1):71-75.
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