|
|||||
|
|
| 鄂尔多斯盆地东北缘保德地区煤层气成因 | |
| 引用本文： | 田文广,汤达祯,王志丽,孙斌.鄂尔多斯盆地东北缘保德地区煤层气成因[J].高校地质学报,2012,18(3):479-484. |
| 作者姓名： | 田文广 汤达祯 王志丽 孙斌 |
| 作者单位： | 1. 中国地质大学北京 能源学院,北京 100083 2. 中国石油勘探开发研究院 廊坊分院,河北 廊坊 065007 3. 渤海钻探工程有限公司 第二录井分公司,河北 廊坊 065007 |
| 基金项目： | 国家科技重大专项(2011ZX05033-02)资助 |
| 摘 要： | 鄂尔多斯盆地东北缘保德地区煤层气井组试采取得较好效果，但煤层气成因尚未形成统一认识，影响到对区域煤层 |
| 关 键 词： | 煤层气 成因 稳定同位素 生物气 鄂尔多斯盆地 |
Origin of Coalbed Methane in Baode, Northeastern Ordos Basin |
|
| TIAN Wenguang,TANG Dazhen,WANG Zhili,SUN Bin.Origin of Coalbed Methane in Baode, Northeastern Ordos Basin[J].Geological Journal of China Universities,2012,18(3):479-484. | |
| Authors: | TIAN Wenguang TANG Dazhen WANG Zhili SUN Bin |
| Institution: | 1. School of Energy Resources China University of Geosciences, Beijing 100083, China;2. Langfang Branch of PetroChina Petroleum Exploration and Development Research Institute, Langfang 065007, China;3. BoHai Drilling Engineering Company Limeted, 2th Mud Logging Company, Hebei 065007, China |
| Abstract: | Trial coalbed methane (CBM) production of the well group in Baode has achieved a relatively satisfactory result but the CBM genesis is still unconfirmed. Based on the data of the components and stable isotope composition of the CBM sampled from the producing wells, the genesis was discussed. Results showed that the CBM is mainly composed of the methane with little heavy hydrocarbons. Carbon isotopic composition of the methane is obviously light, and partial data of the carbon and hydrogen isotopes of the methane plot within the transitional range between the thermogenic and biogenic gases. Carbon isotopic composition of the carbon dioxide of the samples is relatively heavy and is negatively correlated to the carbon isotopic composition of the methane. It was suggested that the coalbed methane in the area has a mixed thermogenic and biogenic origin, but thermogenic gas is the main with composition minor of biogenic gas. Biogenic methane was formed through the reduction of carbon dioxide. The chemistry and hydrodynamics of the coalbed water and the porosity and permeability of the strata in the area were favorable of the active population of the methanogenic bacteria. |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《高校地质学报》浏览原始摘要信息 | |
| 点击此处可从《高校地质学报》下载免费的PDF全文 | |