长岭断陷构造演化与成藏期研究
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摘要
长岭断陷经历了三大演化阶段:断陷期、坳陷期和反转期。在营城、嫩江和明水末期,断陷整体隆升,地层遭受剥蚀。依据地震、钻井和测井资料,选用声波时差法和地层趋势延伸法,对断陷中的4口井进行了剥蚀量计算。结果显示,营城、嫩江和明水末期平均剥蚀量分别为417.5 m、205 m和342.5 m。在地层剥蚀量计算的基础上,进行了构造演化史恢复和研究。结合储层流体包裹体的均一温度测试结果,得出长岭断陷各构造单元油气成藏期次,双坨子构造营城组和登娄库组天然气均具有两期成藏,哈尔金构造营城组和登娄库组具有一期成藏,伏龙泉构造泉头组天然气具有一期成藏。
Changling fault depression went through three stages in evolution,including the faulted period,depression period and inversion period.The fault rised and the formation generated erosion were in the late Yingcheng formation,late Nenjiang formation and late Mingshui formation.Based on seismic and drilling data of the 4 wells located in the studied area by sonic velocity analysis and stratigraphic trend extension method,we get the result that the average erosion volume of the three periods mentioned above were 417.5 m,205 m and 342.5 m respectively.Based on the stratigraphic denudation quantity calculation and the comprehensive study on homogenization temperature fluid inclusion in reservoir,we research on the oil-gas reservoir forming time and the period of each tectonic unit in Changling fault depression.The Yingcheng Formation and Denglouku Formation of Shuangtuozi structure have gas accumulation for two phases.The Yingcheng Formation and Denglouku Formation of Haerjin structure have gas accumulation for one phase.The Quantou Formation of Fulongquan structure has gas accumulation for one phase.
Changling fault depression went through three stages in evolution,including the faulted period,depression period and inversion period.The fault rised and the formation generated erosion were in the late Yingcheng formation,late Nenjiang formation and late Mingshui formation.Based on seismic and drilling data of the 4 wells located in the studied area by sonic velocity analysis and stratigraphic trend extension method,we get the result that the average erosion volume of the three periods mentioned above were 417.5 m,205 m and 342.5 m respectively.Based on the stratigraphic denudation quantity calculation and the comprehensive study on homogenization temperature fluid inclusion in reservoir,we research on the oil-gas reservoir forming time and the period of each tectonic unit in Changling fault depression.The Yingcheng Formation and Denglouku Formation of Shuangtuozi structure have gas accumulation for two phases.The Yingcheng Formation and Denglouku Formation of Haerjin structure have gas accumulation for one phase.The Quantou Formation of Fulongquan structure has gas accumulation for one phase.
引文
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[14]李洪革,林心玉.长岭断陷深层构造特征及天然气勘探潜力分析[J].石油地球物理勘探,2006,41(9):33-39.LI Hong-ge,LIN Xin-yu.Analyzing deep structural fea-ture of Changling fault depression and potential of naturalgas exploration[J].Oil Geophysical Prospecting,2006,41(9):33-39.
[15]杨光,赵占银,王建强.松辽盆地长岭断陷烃类气藏主控因素及分布[J].世界地质,2010,29(4):622-627.YANG Guang,ZHAO Zhan-yin,WANG Jian-qiang.Main controlling factors and distribution of hydrocarbongas reservoir in Changling fault depression of SongliaoBasin[J].Global Geology,2010,29(4):622-627.
[2]杨光.松辽盆地南部油气成藏期研究—以黑帝庙地区为例[J].世界地质,2008,27(3):53-58.YANG Guang.Research on hydrocarbon accumulationperiod on southern Songliao Basin[J].Global Geology,2008,27(3):53-58.
[3]覃建雄.流体包裹体在沉积盆地分析中的应用[J].地质科技情报,1994,2(13):39-44.Qin Jian-xiong.Application of fluid inclusions to the a-nalysis of sedimentary basin[J].Geological Scienceand Technology Information,1994,2(13):39-44.
[4]Pagel R P.Fluid inclusions in oil and gas--bearing sedi-menrary roeks strata[C]//.Thermal Modelling in Sed-imentary Basin,1988:565-583.
[5]马安来,张永昌,张大江,等.油气成藏期研究的新进展[J].石油与天然气地质,2005,26(3):271-276.MA An-lai,ZHANG Yong-chang,ZHANG Da-jiang,etal.New advancement in study of reservoiring period,China[J].Oil&Gas Geology,2005,26(3):271-276.
[6]Barbara.Thermal history of Alberta deep basin:compar-ative study of fluid inclusion and vitrinte refleetance data[J].AAPG,1989,73(10):1206-1222.
[7]杨威,杨栓荣,李新生,等.流体包裹体在塔中40油田成藏期次研究中的应用[J].新疆石油杂志,2002,4(8):338-339.YANG Wei,YANG Shuan-rong,LI Xin-sheng,et al.Application of fluid inclusion enclave to study of hydrocar-bon accumulation stages of Tazhong 40 Oilfield[J].Xinjiang Petroleum Geology,2002,4(8):338-339.
[8]潘长春,周中毅,解启来.油气和含油气包裹体及其在油气地质地球化学研究中的意义[J].沉积学报,1996,14(4):15-23.PAN Chang-chun,ZHOU Zhong-yi,XIE Qi-lai.Hydro-carbon inclusions:implications to petroleum geology andgeochemistry[J].Acta Sedimentologica Sinica,1996,14(4):15-23.
[9]任战利,萧德铭,迟元林.松辽盆地古地温恢复[J].大庆石油地质与开发,2001,20(1):13-14.REN Zhan-li,XIAO De-ming,CHI Yuan-lin.Restora-tion of the palaeogeothermal in Songliao Basin,China[J].Petroleum Geology&Oilfield Development inDaqing,2001,20(1):13-14.
[10]冯子辉,任延广,王成等.松辽盆地深层火山岩储层包裹体及天然气成藏期研究[J].天然气地球科学,2003,6(12):436-442.Feng Zi-hui,Ren Yan-guang,WANG Cheng,et al.Study on inclusion of deep buried igneous reservoir andforming period of gas pool in Songliao Basin[J].Natu-ral Gas Geoscience,2003,6(12):436-442.
[11]王毅,金之钧.沉积盆地中恢复地层剥蚀量的新方法[J].地球科学进展,1999,5(10):482-486.WANG Yi,JIN Zhi-Jun.Progress of the methods onthe recovrey of the thickness of eroded strata in basin[J].Advances in Earth Science,1999,5(10):482-486.
[12]王敏芳,焦养泉,黄传炎.地层剥蚀量恢复方法浅述[J].承德石油高等专科学校学报,2005,4(7):6-11.WANG Min-fang,JIAO Yang-quan,HUANG Chuan-yan.Basic Study on Denuded Strata Recovery Methods[J].Journal of Chengde Petroleum College,2005,4(7):6-11.
[13]王敏芳,黄传炎,徐志诚,等.浅述地层剥蚀量恢复的基本原理与方法[J].海洋石油,2006,3(1):28-33.WANG Min-fang,HUANG Chuan-yan,XUN Zhi-cheng,et al.Basic principles and methods of denudedstrata comeback[J].Offshore Oil,2006,3(1):28-33.
[14]李洪革,林心玉.长岭断陷深层构造特征及天然气勘探潜力分析[J].石油地球物理勘探,2006,41(9):33-39.LI Hong-ge,LIN Xin-yu.Analyzing deep structural fea-ture of Changling fault depression and potential of naturalgas exploration[J].Oil Geophysical Prospecting,2006,41(9):33-39.
[15]杨光,赵占银,王建强.松辽盆地长岭断陷烃类气藏主控因素及分布[J].世界地质,2010,29(4):622-627.YANG Guang,ZHAO Zhan-yin,WANG Jian-qiang.Main controlling factors and distribution of hydrocarbongas reservoir in Changling fault depression of SongliaoBasin[J].Global Geology,2010,29(4):622-627.
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