韩城区块煤层气井产出煤粉特征及主控因素
煤层气排采过程中的煤粉问题是制约煤层气井产能的主控因素之一，为了揭示煤粉的产出机理和查明煤粉的来源，以韩城区块为实验区，通过现场观测和描述，采用透光显微镜、激光粒度测试仪、X射线衍射和反射偏光显微镜，从浓度、粒度、成分等方面对煤层气排采中产出的煤粉特征进行分析，结合煤层气主力开发煤层特征，指出了煤粉产出的主控因素有井型、完井工艺、排采制度、煤岩特征、煤体结构和煤层结构等，而煤体结构（构造破坏）是煤粉产出的首要控制因素。...
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| Published in | 煤炭学报 Vol. 38; no. 8; pp. 1424 - 1429 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
2013
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| Subjects | |
| Online Access | Get full text |
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| Abstract | 煤层气排采过程中的煤粉问题是制约煤层气井产能的主控因素之一，为了揭示煤粉的产出机理和查明煤粉的来源，以韩城区块为实验区，通过现场观测和描述，采用透光显微镜、激光粒度测试仪、X射线衍射和反射偏光显微镜，从浓度、粒度、成分等方面对煤层气排采中产出的煤粉特征进行分析，结合煤层气主力开发煤层特征，指出了煤粉产出的主控因素有井型、完井工艺、排采制度、煤岩特征、煤体结构和煤层结构等，而煤体结构（构造破坏）是煤粉产出的首要控制因素。 |
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| AbstractList | 煤层气排采过程中的煤粉问题是制约煤层气井产能的主控因素之一，为了揭示煤粉的产出机理和查明煤粉的来源，以韩城区块为实验区，通过现场观测和描述，采用透光显微镜、激光粒度测试仪、X射线衍射和反射偏光显微镜，从浓度、粒度、成分等方面对煤层气排采中产出的煤粉特征进行分析，结合煤层气主力开发煤层特征，指出了煤粉产出的主控因素有井型、完井工艺、排采制度、煤岩特征、煤体结构和煤层结构等，而煤体结构（构造破坏）是煤粉产出的首要控制因素。 |
| Author | 魏迎春 曹代勇 袁远 朱学申 姚征 周济 |
| AuthorAffiliation | 中国矿业大学北京地球科学与测绘工程学院,北京100083 |
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| DocumentTitleAlternate | Characteristics and controlling factors of pulverized coal during coalbed methane drainage in Hancheng area |
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| Notes | Pulverized coal is one of the main controlling factors restraining the production capacity of coal-bed methane wells during CBM extraction. In order to identify the sources of pulverized coal particles and reveal the mechanism of pulverized coal generation, with Hancheng coal field as an experimental area, using light transmission microscopy,laser particle size testing, X-ray diffraction, and reflection polarized optical microscopy, the eharaeteristics of pulverized coal collected during CBM extraction were analyzed for its concentration, particle size, and composition. Combining with the coal seam characteristics, authors finds that the main controlling factors of pulverized coal generation include well type, well completion technology, extraction system, coal petrography characteristics, coal body structure and coal seam structure. In particularly, the coal body structure is the principal control factors of pulverized coal generation. WEI Ying-chun, CAO Dai-yong, YUAN Yuan, ZHU Xue-shen, YAO Zheng, ZHOU Ji （ |
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| PublicationTitle | 煤炭学报 |
| PublicationTitleAlternate | Journal of China Coal Society |
| PublicationYear | 2013 |
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| SubjectTerms | 主控因素 煤层气排采 煤粉特征 韩城区块 |
| Title | 韩城区块煤层气井产出煤粉特征及主控因素 |
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