| 塔里木盆地玉北5井下奥陶统蓬莱坝组沉积期的暴露标志及其意义 |
| |
| 引用本文： | 蔡习尧,李慧莉,尤东华,高晓鹏,马宇驰.塔里木盆地玉北5井下奥陶统蓬莱坝组沉积期的暴露标志及其意义[J].岩石学报,2016,32(3):915-921. |
| |
| 作者姓名： | 蔡习尧 李慧莉 尤东华 高晓鹏 马宇驰 |
| |
| 作者单位： | 中国石油化工股份有限公司, 石油勘探开发研究院, 北京 100083,中国石油化工股份有限公司, 石油勘探开发研究院, 北京 100083,中国石油化工股份有限公司, 石油勘探开发研究院, 北京 100083,中国石油化工股份有限公司, 石油勘探开发研究院, 北京 100083,中国石油化工股份有限公司, 石油勘探开发研究院, 北京 100083;中国石油大学地球科学学院, 北京 102249 |
| |
| 基金项目： | 本文受国家"十二五"国家科技支撑计划项目(2011ZX05005-004-003)和"973"计划项目(2012CB214806)联合资助. |
| |
| 摘 要： | 塔里木盆地玉北地区玉北5井下奥陶统蓬莱坝组,属于局限台地潮坪沉积,主要为一套灰、浅灰色泥晶白云岩、灰色藻纹层(藻席)、灰质云岩与细粉晶云岩。首次在岩芯中发现多个层位发育暴露标志,包括钙结壳、渗流豆石、碴状层、溶洞。溶洞主要发育在第10回次下部,碴状层、钙结壳、渗流豆石发育在第10回次中上部至第5回次。蓬莱坝组这些暴露标志的确认,说明玉北地区早奥陶世特马豆克期有一定规模的海平面下降事件,可能是储层形成的重要控制因素。
|
| 关 键 词： | 钙结壳 渗流豆石 碴状层 暴露标志 玉北5井 蓬莱坝组 玉北地区 塔里木盆地 |
| 收稿时间： | 5/3/2015 12:00:00 AM |
| 修稿时间： | 2015/11/18 0:00:00 |
Exposure indicators and significance formed during the deposition of the Penglaiba Formation of Lower Ordovician of Well Yb5, Tarim Basin. |
| |
| CAI XiYao,LI HuiLi,YOU DongHu,GAO XiaoPeng and MA YuChi.Exposure indicators and significance formed during the deposition of the Penglaiba Formation of Lower Ordovician of Well Yb5, Tarim Basin.[J].Acta Petrologica Sinica,2016,32(3):915-921. |
| |
| Authors: | CAI XiYao LI HuiLi YOU DongHu GAO XiaoPeng and MA YuChi |
| |
| Institution: | Research Institute of Exploration & Production, SINOPEC, Beijing 100083, China,Research Institute of Exploration & Production, SINOPEC, Beijing 100083, China,Research Institute of Exploration & Production, SINOPEC, Beijing 100083, China,Research Institute of Exploration & Production, SINOPEC, Beijing 100083, China and Research Institute of Exploration & Production, SINOPEC, Beijing 100083, China;College of Geoscience, China University of Petroleum, Beijing 102249, China |
| |
| Abstract: | The Penglaiba Formation of Lower Ordovician of Well Yb5 in Yubei area of Tarim Basin, belonging restricted platform tidal sediments, was mainly consisted of gray, light gray micritic dolomite, gray algal laminae(algae seats), calcareous dolomite and fine-powder dolomite. It was first found in the cores that large amount of multi cycles exposure indicators, caliche, vadose pisolite, ruiniform horizon and tepee structure. The exposure indicators made up two superimposition relationships in vertical:Micritic dolomite-algal laminae-tepee structure; micritic dolomite-ruiniform horizon-caliche and vadose pisolite. The former grown in the lower of 10 times coring; the latter developed from the middle-upper of tenth core to the fifth core, with a characteristic of weak growth-intensive development-not development. It reflected a complete regression-transgression cycles. They, which a lot of exposure indicators were recognized in the Penglaiba Formation, were of much important significance about the objective and effective analyses of sedimentary facies on the tremadocian of Early Ordovician, the discussion on the existence of "Hetian paleo uplift" and its formation and evolution, the researches on the characteristics of dolomite reservoir and distribution of Penglaiba Formation. |
| |
| Keywords: | Caliche Vadose pisolite Ruiniform horizon Tepee structure Well Yb5 Penglaiba Formation Yubei area Tarim Basin |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩石学报》浏览原始摘要信息 |
| 点击此处可从《岩石学报》下载免费的PDF全文 |
|
