柴西南地区上油砂山组高分辨率层序地层格架建立
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摘要
以高分辨率层序地层学为基础,并结合测井和岩心资料,通过识别旋回界面标志,将研究区的短期基准面旋回层序类型总共划分成3种类型:即向上"变深"的非对称短期旋回,向上"变浅"的非对称短期旋回和对称型短期旋回。文中详细讨论了每种亚型的沉积背景、叠加方式在沉积相中的分布以及测井曲线特征。并在此基础上,分析总结出在上油砂山中短期旋回的分布,指出上油砂山组整体上处于一个湖退的环境,并向河流相过渡。
In this paper, on the basis of the high-resolution sequence stratigraphy and the logging and core data, we have divided the short-term base-level cyclic sequences totally into three types by identifying the cyclic interface signs in the research area: namely, upward "darker" asymmetric short-term cycles, upward "shallower" asymmetric short-term cycles and symmetrical short-term cycles. In this paper, we have completed detailed discussion of the distribution in sedimentary facies and the well logging curve characteristics for the sedimentary background and stacked system of each subtype. On such basis, we further have analyzed and summarized the distribution of the short-term cycles in upper oil-sand mountains and pointed out that the upper oil-sand mountain formation is generally in a lake retreat environment and transition to the fluvial facies.
In this paper, on the basis of the high-resolution sequence stratigraphy and the logging and core data, we have divided the short-term base-level cyclic sequences totally into three types by identifying the cyclic interface signs in the research area: namely, upward "darker" asymmetric short-term cycles, upward "shallower" asymmetric short-term cycles and symmetrical short-term cycles. In this paper, we have completed detailed discussion of the distribution in sedimentary facies and the well logging curve characteristics for the sedimentary background and stacked system of each subtype. On such basis, we further have analyzed and summarized the distribution of the short-term cycles in upper oil-sand mountains and pointed out that the upper oil-sand mountain formation is generally in a lake retreat environment and transition to the fluvial facies.
引文
[1] 邓宏文.美国层序地层研究中的新学派—高分辨率层序地层学[J].石油与天然气地质,1995,(02):89-97.
[2] 邓宏文,王洪亮,李熙喆.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,(03):177-184.
[3] 邓宏文,王红亮,宁宁.沉积物体积分配原理—高分辨率层序地层学的理论基础[J].地学前缘,2000,(04):305-313.
[4] 邓宏文.高分辨率层序地层学应用中的问题探析[J].古地理学报,2009,11(05):471-480.
[5] 郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义[J].沉积学报,2001,(02):249-255.
[6] 郑荣才,尹世民,彭军.基准面旋回结构与叠加样式的沉积动力学分析[J].沉积学报,2000,(03):369-375.
[7] 肖传桃,张小容,张济鹏,等.柴达木盆地西南部第三纪中期层序类型与与砂体发育特征的研究[J].四川地质学报,2010,30(01):4-8.
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[9] 周新锋.柴达木盆地YD地区上、下油砂山组沉积微相和成岩作用研究[D].西北大学,2013
[10] 于航,黄新武,梅华,等.柴达木盆地英东油田油砂山组沉积微相研究[J].内蒙古石油化工,2014,40(22):154-156.
[11] 彭军,郑荣才,陈景山,等.百色盆地那读组短期基准面旋回层序分析[J].沉积学报,2002,(02):203-209.
[12] 杨华,田景春,夏青松,等.短期基准面旋回叠加样式与储层物性变化模式关系研究——以陇东地区三叠系延长组长6-长8油层组为例[J].成都理工大学学报(自然科学版),2004,(05):478-483.
[13] 孙雨,马世忠,闫百泉,等.浅水湖盆河控三角洲短期基准面旋回结构样式与沉积演化:以松辽盆地扶新隆起带南部扶余油层为例[J].中南大学学报(自然科学版),2013,44(08):3405-3414.
[14] 孙雨,邓明,于利民,等.基于中期基准面旋回变化的沉积微相特征与演化分析——以松辽盆地扶新隆起带南部扶余油层Ⅰ砂组为例[J].河南科学,2016,34(12):2038-2043.
[15] 吴光大,葛肖虹,刘永江,等.柴达木盆地中、新生代构造演化及其对油气的控制[J].世界地质,2006,(04):411-417.
[16] 惠博,伊海生,夏国清,等.柴达木盆地西部新生代沉积演化特征[J].中国地质,2011,38(05):1274-1281.
[2] 邓宏文,王洪亮,李熙喆.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,(03):177-184.
[3] 邓宏文,王红亮,宁宁.沉积物体积分配原理—高分辨率层序地层学的理论基础[J].地学前缘,2000,(04):305-313.
[4] 邓宏文.高分辨率层序地层学应用中的问题探析[J].古地理学报,2009,11(05):471-480.
[5] 郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义[J].沉积学报,2001,(02):249-255.
[6] 郑荣才,尹世民,彭军.基准面旋回结构与叠加样式的沉积动力学分析[J].沉积学报,2000,(03):369-375.
[7] 肖传桃,张小容,张济鹏,等.柴达木盆地西南部第三纪中期层序类型与与砂体发育特征的研究[J].四川地质学报,2010,30(01):4-8.
[8] 陈峰,冯乔,徐明璞,等.柴西地区上下油砂山组沉积相及有利储层[J].山东国土资源,2014,30(05):9-13.
[9] 周新锋.柴达木盆地YD地区上、下油砂山组沉积微相和成岩作用研究[D].西北大学,2013
[10] 于航,黄新武,梅华,等.柴达木盆地英东油田油砂山组沉积微相研究[J].内蒙古石油化工,2014,40(22):154-156.
[11] 彭军,郑荣才,陈景山,等.百色盆地那读组短期基准面旋回层序分析[J].沉积学报,2002,(02):203-209.
[12] 杨华,田景春,夏青松,等.短期基准面旋回叠加样式与储层物性变化模式关系研究——以陇东地区三叠系延长组长6-长8油层组为例[J].成都理工大学学报(自然科学版),2004,(05):478-483.
[13] 孙雨,马世忠,闫百泉,等.浅水湖盆河控三角洲短期基准面旋回结构样式与沉积演化:以松辽盆地扶新隆起带南部扶余油层为例[J].中南大学学报(自然科学版),2013,44(08):3405-3414.
[14] 孙雨,邓明,于利民,等.基于中期基准面旋回变化的沉积微相特征与演化分析——以松辽盆地扶新隆起带南部扶余油层Ⅰ砂组为例[J].河南科学,2016,34(12):2038-2043.
[15] 吴光大,葛肖虹,刘永江,等.柴达木盆地中、新生代构造演化及其对油气的控制[J].世界地质,2006,(04):411-417.
[16] 惠博,伊海生,夏国清,等.柴达木盆地西部新生代沉积演化特征[J].中国地质,2011,38(05):1274-1281.