|
|||||
|
|
| 普光气藏长兴—飞仙关组微量元素及海平面变化分析 | |
| 引用本文： | 徐立恒,陈践发,赵健.普光气藏长兴—飞仙关组微量元素及海平面变化分析[J].天然气勘探与开发,2011,34(4):17-21. |
| 作者姓名： | 徐立恒 陈践发 赵健 |
| 作者单位： | 1. 中国石油大庆油田有限责任公司勘探开发研究院 2. 中国石油大学资源信息学院 3. 中国石油渤海钻探第二录并分公司 |
| 基金项目： | 中国石油化工股份有限公司 |
| 摘 要： | 沉积环境及沉积相的识别对于古地理的恢复及油气勘探有着非常重要的意义.通过对川东北普光地区长兴组—飞仙关组进行密集取样,利用对沉积环境变化较敏感的地化指标和环境参数Mn/Ti、Mn/Fe、Rb/Sr,研究其在纵向的分布特征和变化规律,来指示它们与海平面变化及其与沉积相的演化的对应关系.认为从长兴组到飞仙关组,微量元素呈有规律的变化,其Mn/Ti、Mn/Fe值逐渐降低,反映了长兴组末期到飞仙关组沉积期海平面降低,代表此期总体上处于海退期.飞仙关组一段、二段,沉积鲕粒白云岩为特征,Rb/Sr值最大,反映海平面较低,其气候湿润,地层出露遭到淋滤,属于台地边缘礁滩相沉积;在飞仙关组三段沉积期,以泥微晶白云岩为特征,Rb/Sr值较小,海平面较低,气候干旱,处于局限台地潮坪相沉积. |
| 关 键 词： | 川东北 普光地区 长兴组—飞仙关组 微量元素 海平面 |
TRACE ELEMENT AND SEA-LEVEL CHANGE OF CHANGXING-FEIXIANGUAN FORMATIONS IN PUGUANG GAS RESERVOIR |
|
| XU Liheng,CHEN Jianfa , ZHAO Jian..TRACE ELEMENT AND SEA-LEVEL CHANGE OF CHANGXING-FEIXIANGUAN FORMATIONS IN PUGUANG GAS RESERVOIR[J].Natural Gas Exploration and Development,2011,34(4):17-21. | |
| Authors: | XU Liheng CHEN Jianfa ZHAO Jian |
| Affiliation: | XU Liheng1,CHEN Jianfa2 and ZHAO Jian3(1. Research Institute of Exploration and Development,PetroChina Daqing Oilfield Company,2. College of Geo-Resources and Information,China University of Petroleum,3. No.2 Mud-logging Company,CNOOC Bohai Oilfield Company). |
| Abstract: | To recognize both sedimentary environment and facies is very significant for palaeogeographic reconstruction and hydrocarbon exploration. In this study, some samples are obtained from Changxing-Feixianguan formations of Puguang area, northeastern Sichuan Basin at first; and then, not only longitudinal distribution but also change laws of formations are studied by means of many geochemical indexes and environment parameters such as Mn/Ti, Mn/Fe, Rb/Sr, which are more sensitive to sedimentary environment chan... |
| Keywords: | northeastern Sichuan Basin Puguang area Changxing Formation Feixianguan Formation trace element sea level |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
