油气藏烃类垂向微渗漏及近地表化探异常的油气地质意义油气藏烃类垂向微渗漏及近地表化探异常的油气地质意义
收稿日期: 2011-01-04
修回日期: 2011-03-21
网络出版日期: 2011-10-10
基金资助
中国石化科研项目“已知区近地表地球化学勘探应用研究”资助.
Vertical Micro-migration of Hydrocarbons from Subsurface Reservoirs and Geological Significance in Near-surface Geochemical Exploration for Oil and Gas
Received date: 2011-01-04
Revised date: 2011-03-21
Online published: 2011-10-10
结合渤海湾盆地临南断块油气藏、塔里木盆地雅克拉凝析气藏等研究区石油地质资料，从油气藏成藏特征、化探异常空间分布规律入手，探讨烃类垂向微渗漏的方式及受控因素，研究化探异常与油气藏烃类垂向微渗漏的“成因”联系，分析和认识化探异常的油气地质意义。夏口断层在临南断块油气藏成藏系统中具备油气侧向运移“封堵”特征，而研究区化探异常则揭示了夏口断层(裂隙）具有油气纵向“渗漏通道”作用，由此表明夏口断层具备油气侧向运移相对“封堵”和油气纵向绝对“渗漏”的双重属性特征。雅克拉气藏区化探异常围绕着气藏构造高部位(化探指标低值区)呈环状形式分布于气藏边缘，表明气藏盖层明显控制了气藏烃类垂向微渗漏和化探异常的空间分布特征；重烃指标异常空间分布规律与气藏盖层封闭性的横向变化规律具有较为一致的对应关系，表明气藏盖层封闭性对油气重烃微渗漏的影响较甲烷微渗漏影响更为明显。2个研究区近地表化探异常特征与其对应的油气藏成藏特征、油气垂向微渗漏等存在极为密切的联系。
蒋涛, 赵克斌, 荣发准, 张恒启 . 油气藏烃类垂向微渗漏及近地表化探异常的油气地质意义油气藏烃类垂向微渗漏及近地表化探异常的油气地质意义[J]. 天然气地球科学, 2011 , 22(5) : 901 -908 . DOI: 10.11764/j.issn.1672-1926.2011.05.901
In this paper,we discuss the genetic correlation between geochemical anomaly and vertical micro\|migration of hydrocarbons from the subsurface oil and gas reservoirs and its geological significance in petroleum geology by means of vertical migration modes and controlling factors,as well as oil and gas accumulation and geochemical anomaly distribution in the Linnan block oil and gas field in the Bohai Bay basin and the Yakela condensate gas field in the Tarim basin.According to geochemical anomaly distribution,Xiakou fault in the Linnan oil and gas accumulation system act as a barrier for lateral migration of oil and gas but a vertical pathway in the study area,indicating that Xiakou fault plays a role of both relative barrier to lateral migration and absolute pathway to vertical migration.Geochemical anomaly has been distributed as a halo shape around the structural high point of Yakela gas field,suggesting that the gas seal would control vertical migration and space distribution of geochemical anomaly.Distribution of the heavier anomaly is consistent with lateral variation of sealing of caprock,indicating that the sealing of caprock to heavier hydrocarbons is more than that to methane.In two cases,we find out that the near-surface geochemical anomaly is related with oil and gas accumulation and vertical oil and gas micro-migration.
［1］Jiang Tao,Xia Xianghua,Chen Zhechun.Hydrocarbon geochemical field effects and their applications［J］.Petroleum Geology & Experiment,2003,25(3):290-294.［蒋涛,夏响华,陈浙春．地球化学烃场效应的探讨及应用［J］.石油实验地质,2003,25(3):290-294.］
［2］Abrams M A.Significance of hydrocarbon seepage relative to petroleum generation and entrapment［J］.Marine and Petroleum Geology,2005,22(4):457-477.
［3］Price L C.A critical overview and proposed working model of surface geochemical exploration［C］//Davidson M J.Unconventional Methods Exploration for Petroleum and Natural Gas-IV.Dallas TX Southern Methodist University Press,1986:245-304.
［4］Jones V T,Drozd R J.Predictions of oil and gas potential by near surface geochemistry［J］.AAPG Bulletin,1983,67(6）:932.
［5］Klusman R,Saeed M.Comparison of light hydrocarbon mechanisms［C］// Schumacher D,Abrams M A.Hydrocarbon Migration and Its Near-surface Expression:AAPG Memoir 66.Tulsa,Oklahoma:AAPG,1996:157-168．
［6］Saunders D F,Burson K R,Thompson C K.Model for hydrocarbon microseepage and related near-surface alterations［J］.AAPG Bulletin.1999,83:170-185.
［7］Klusman R W,Voorhees K J,Hikey J C,et al.Application of the K-V figerprint technique for petroleum exploration［C］//Davidson M J.Unconventional Methods in Exploration for Petroleum and Natural gas(Ⅳ).Dallals:Southern Methodist University Press,1986:219-244.
［8］Cheng Tongjin,Zhu Huaiping,Chen Zhechu.Geochemical characteristics of Kongque 1 well profile and vertical migration of hydrocarbon［J］.Natural Gas Geoscience,2006,17(1）:148-152.［程同锦,朱怀平,陈浙春.孔雀1井剖面地球化学特征与烃类的垂向运移［J］.天然气地球科学,2006,17(1）:148-152.］
［9］Jiang Tao,Wu Ruijing,Cheng Tongjin,et al.On geochemical prospecting techniques applications in western China［J］.Natural Gas Geoscience,2007,16(1）:117-120.［蒋涛,吴瑞金,程同锦,等.化探技术在我国西部油气勘探中的应用探讨［J］.天然气地球科学,2007,16(1):117-120.］
［10］Jiang Tao,Wu Yongqiang,Tang Yuping,et al.Hydrocarbon geochemical field effects and influencing factor in oil and gas geochemical exploration［J］.Natural Gas Geoscience,2008,19(2):280-285.［蒋涛,仵永强,汤玉平,等.地球化学烃场效应及影响化探异常的因素［J］.天然气地球科学,2008,19(2):280-285.］
［11］Liu Zhaolu,Xia Bin.Prelimnary restore of the Mesozoic original basin and its main control factors in Jiyang sag［J］.Natural Gas Geoscience,2006,17(1):60-63.［刘朝露,夏斌.济阳坳陷中生代原型盆地的初步恢复及其主控因素［J］.天然气地球科学,2006,17(1):60-63.］
［12］Han Tianyou,Qi Jiafu,Lin Huixi.Study of Cenozoic tectonic evolution and hydrocarbon accumulation in southwest gentle slope belt,Huimin sag［J］.Oil & Gas Geology,2003,24(3):245-248.［韩天佑,漆家福,林会喜.惠民凹陷西南缓坡带新生代构造演化与油气成藏特征［J］.石油与天然气地质,2003,24(3):245-248.］
［13］Zeng Jianhui,Zhang Shanwen,Qiu Nansheng,et al.Trap fill of lithologic pools and its main controlling factors in Dongying sag［J］.Oil & Gas Geology,2003,24(3):219-222.［曾溅辉,张善文,邱楠生,等.东营凹陷岩性圈闭油气充满度及其主控因素［J］.石油与天然气地质,2003,24(3):219-222.］
［14］Hindle A D.Petroleum migration pathways and charge concentration:A three-dimensional model［J］.AAPG Bulletin,1997,81:1451-1481.
［15］Zhao Yang,Liu Zheng,Dai Lichang.Characteristics of carrying bed system and hydrocarbon migration in Linnan district［J］.Journal of Xi′an Petroleum Institute,2003,18(3):1-3.［赵阳,刘震,戴立昌.惠民凹陷临南地区油气输导系统及油气运移特征［J］.西安石油学院学报:自然科学版,2003,18(3):1-3.］
［16］Gao Xianzhi,Du Yumin,Zhang Baoshou.The sealing of Xiakou fault and its model of controlling on the petroleum accum ulation［J］.Petroleum Exploration and Development,2003,30(3):76-78.［高先志,杜玉民,张宝收.夏口断层封闭性及对油气成藏的控制作用模式［J］.石油勘探与开发,2003,30(3):76-78.］
［17］Fu Jinhua.Pool-forming mechanism of the Xiakou faulted zone in the Huimin depression［J］.Petroleum Geology & Experiment,2002,24(2):136-140.［付金华.惠民凹陷夏口断裂带油气成藏机制研究［J］.石油实验地质,2002,24(2):136-140.］
［18］Xiong Min,Zhang Ziyu,Zeng Qinghui,et al.A study on the flow behavior and some consideration on the development of Linnan oilfield［J］.Fault-Block Oil ＆ Gas Field,1996,3(2):31-35.［熊敏,张子玉,曾庆辉,等.临南油田渗流特性研究及开发中应注意的几个问题［J］.断块油气田,1996,3(2):31-35.］
［19］Cheng Xinjun,Shi Wanzhong,Cheng Pingli.Relationship between distribution characteristics of oilfeild water geochemistry and petroleum accumulation in Huimin depression
[J].Natural Gas Geoscience,2000,11(6),7-10.［陈新军,石万忠,陈萍丽.惠民凹陷油田水化学场分布特征与油气聚集关系［J］.天然气地球科学,2000,11(6):7-10.］
［20］Tan Ke,Zhao Mifu.Hydrocarbon accumulation models in linnan slope zone,Huimin depression［J］.Journal of The University of Petroleum,2002,26(6):21-32.［覃克,赵密福.惠民凹陷临南斜坡带油气成藏模式［J］.石油大学学报,2002,26(6):21-32.］
［21］Wang Bin,Yuan Yueqin,Zhou Jiangyu,et al.Fault sealing in Yakela-Luntai area,the Tarim basin［J］.Petroleum Geology & Experment,2006,28(5):434-439.［王斌,袁月琴,周江羽,等.塔里木盆地雅一轮地区断层封堵性研究［J］.石油实验地质,2006,28(5):434-439.］
［22］Ye Desheng,Gao Guoqiang.The diffusive flux of the Yakela condensate field in the northern Tarim basin and its geological signficance［J］.Petroleum Exploration and Development.1992,10(3):1-4.［叶德胜,高国强.塔里木盆地北部雅克拉凝析气田的扩散量及其地质意义［J］.石油勘探与开发,1992,10(3):1-4.］
［23］He Heiquan,Zhang Zhongxian,Tang Yidan.On the formation conditions of the Yakala oil/gas field in the Tarim basin［J］.Petroleum Geology & Experment,1989,11(1):1-6.［何海泉,张忠先,唐一丹.对塔里木盆地雅克拉油气田成藏条件的认识［J］.石油实验地质,1989,11(1):1-6.］
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