塔里木盆地顺托果勒地区柯坪塔格组下段勘探新发现及其启示

英文篇名：The New Oilfield Discoveries and Exploration Revelations for Lower Member of Kepingtage Formation in Shuntuoguole Regions, Tarim Basin
中文刊名：地质论评
英文刊名：Geological Review
作者：张云龙 ; 蒲仁海 ; 云露 ; 孙乃泉 ; 代振龙 ; 张少华
英文作者：ZHANG Yunlong1) ; PU Renhai1) ; YUN Lu2) ; SUN Naiquan1) ; DAI Zhenlong1) ; ZHANG Shaohua1) 1) State Key Laboratory of Continental Dynamics ; Department of Geology ; Northwest University ; Xi ; an ; 710069 ; 2)Research Institute of Northwest Oilfield Branch ; SINOPEC ; Urumqi ; 830011
中文关键词：塔里木盆地 ; 柯坪塔格组下段 ; 侵蚀谷 ; 不整合 ; 地层划分对比
英文关键词：Tarim Basin ; the Lower Member of the Kepingtage Formation ; incised valley ; unconformity ; stratigraphic division and stratigraphic correlation
出版日期：2013-03-15
机构：西北大学大陆动力学国家重点实验室,地质学系;中石化西北油田分公司研究院;
年：2013
期：02
出版单位：地质论评

摘要

依据钻井及地震资料综合解释,奥陶纪末期由于海平面下降,其顶面遭受侵蚀下切,形成一个大型东西向的侵蚀谷。谷底多处零星分布了一套30m左右的玄武岩、凝灰岩。后期该侵蚀谷被志留系下统柯坪塔格组下段填平补齐。柯坪塔格组下段主要分布在塔中I号断裂带以北和塔北隆起之间,东西向展布,最大厚度约1000m,据其厚度和在古沉积斜坡的超覆特征,可分为北部缓坡带、中央深陷带和南部陡坡带三个古构造单元。柯坪塔格组下段早—中期物源受侵蚀谷充填控制主要来自塔东地区,晚期物源则主要来自塔北地区,I号断裂以南的塔中隆起没有提供物源。柯坪塔格组下段经历了从半深海泥到潮控三角洲的过渡型沉积环境,发育三角洲储层和低幅度构造,形成了良好的油气成藏区域。
Based on the drilling and seismic data comprehensive interpretation, at the end of the Ordovician, a sea-level fall happened and resulted in the erosion and incise the top surface, forming a large east—west incised valley. At the incised valley base, there is around 30m of basalt and tuff branching northwestward. The incised valley is filled up nearly completely after deposition of the Lower Member of the Kepingtage Formation, Silurian. The Lower Member of the Kepingtage Formation, whose maximum thickness is about 800m, mainly distributes between the Tazhong Ⅰ fauls and North—Tarim Uplifted region. In the light of their thickness and the overlapping gradient of valley, three ancient tectonic units can be divided: the northern gentle slope zone, the central depocenter zone and the southern steep zone. The clastic masses of the Lower Member of the Kepingtage Formation mainly came from the eastern margin of the basin, and secondly northern margin. The Tazhong Uplifted region did not supply sediments to the Shun9 well area. The Lower Member of the Kepingtage Formation expired depositional evaluation from semi-deep sea mud to deltaic deposit, having deltaic reservoir and low amplitude structure, forming a better hydrocarbon accumulation area.

引文

鲍祥生,尹成,赵伟,等.2005.储层预测的地震属性优选技术研究.石油物探,45(1):28～37.
    苌衡,龚奇,欧阳睿,黄俊峰,杨学武.2003.塔中地区火成岩特征及其石油地质意义.石油物探,42(1):49～53.
    范春花,蒲仁海,漆立新,等.2007.塔河地区志留系的对比.地质论评,53(1):1～5.
    付彦辉,吕福亮,袁圣强,马玉波,吴时国.2009.琼东南盆地陆坡区深水浊积水道的地震相特征.热带海洋学报,28(4):87～92.
    付彦辉,吴时国.2009.琼东南盆地南部深水水道沉积体系及其油气意义.中国石油大学硕士学位论文.
    郭倩,蒲仁海,杨林,等.2011.塔里木盆地塔河地区志留系上倾尖灭圈闭油气成藏.石油实验地质,33(2):120～123.
    江大勇,郝维城,白顺良,王新平,姚建新.2001.新疆塔里木盆地晚奥陶世—早石炭世地层划分对比研究新突破.北京大学学报(自然科学版),37(4):529～536.
    李传新,贾承造,李本亮,杨庚,杨海军,罗春树,韩剑,王晓峰.2009.塔里木盆地塔中低凸起北斜坡古生代断裂展布与构造演化.地质学报,83(8):1065～1073.
    林畅松,刘景彦,蔡世祥,张艳梅,吕明,李杰.2001.莺—琼盆地大型下切谷和海底重力流体系的沉积构成和发育背景.科学通报,46(1):69～72.
    刘友年,史海英,蔡先华.2005.岩性圈闭识别技术在淞南长岭凹陷腰英台地区的应用.石油物探,44(6):588～592.
    柳广弟,张厚福.2009.石油地质学(第四版).北京:石油工业出版社.
    苗林.2012.塔里木盆地顺托果勒区块志留系成藏条件研究.中国石油和化工标准与质量,6:160.
    王振宇,陈文,李丹.2008.塔里木盆地塔中I号坡折带中上奥陶统台缘礁滩体储层主控地质因素分析.科技创新导报,No.05:64～65.
    杨海军,邬光辉,孙丽霞,黄广建,胡太平.2007.塔中北斜坡志留系岩性油藏形成条件与勘探方向.新疆石油地质,28(3):286～288.
    袁圣强,吴时国,姚根顺.2010.琼东南陆坡深水水道主控因素及勘探应用.海洋地质与第四纪地质,30(2):60～65.
    张鑫,张金亮,覃利娟.2007.塔里木盆地志留系柯坪塔格组砂岩岩石学特征与物源分析.矿物岩石,27(3):106～115.
    赵澄林,朱筱敏.2006.沉积岩石学.北京:石油工业出版社.
    赵风云,吕修祥,杨海军,李宇平,邬光辉.2004.塔里木盆地塔中低凸起志留系油气成藏模式初探.西安石油大学学报(自然科学版),19(4):54～57.
    钟广法,邓常念,周志松.1997.塔中地区火成岩的地震相及圈闭特征.江汉石油学院学报,19(3):34～37.