肖晴侠,王生维,陈安东. 准南白杨河矿区煤层气成藏模式及主控因素[J]. 华北地震科学,2020, 38(2):28-33, 51. doi:10.3969/ j.issn.1003−1375.2020.02.005.
引用本文: 肖晴侠,王生维,陈安东. 准南白杨河矿区煤层气成藏模式及主控因素[J]. 华北地震科学,2020, 38(2):28-33, 51. doi:10.3969/ j.issn.1003−1375.2020.02.005.
XIAO Qingxia,WANG Shengwei,CHEN Andong. Coalbed Methane Reservoir Forming Model and Main Controlling Factors of Baiyanghe Mining Area in the Southern Junggar[J]. North China Earthqauke Sciences,2020, 38(2):28-33, 51. doi:10.3969/j.issn.1003−1375. 2020.02.005.
Citation: XIAO Qingxia,WANG Shengwei,CHEN Andong. Coalbed Methane Reservoir Forming Model and Main Controlling Factors of Baiyanghe Mining Area in the Southern Junggar[J]. North China Earthqauke Sciences,2020, 38(2):28-33, 51. doi:10.3969/j.issn.1003−1375. 2020.02.005.

准南白杨河矿区煤层气成藏模式及主控因素

Coalbed Methane Reservoir Forming Model and Main Controlling Factors of Baiyanghe Mining Area in the Southern Junggar

  • 摘要: 为了建立矿区范围内的煤层气成藏模式,查明控气主要因素,对后期井网布置、钻井、压裂、排采等提供重要依据。基于新疆阜康白杨河矿区的地质条件和煤层气特征,进行成藏模式的系统研究,结合灰色关联理论分析,总结出成藏主控因素。研究结果显示:矿区内42#目标煤层厚度大、煤层含气量高,与煤层埋深呈正相关性;煤层直接顶底板的砂岩致密性好,形成较好的封盖条件。综合分析认为矿区南部位于单斜底部,埋深大、煤层厚、含气量高,封盖条件好,是煤层气富集的有利区域,并提出了致密顶底板、单斜构造和水文地质条件的联合封闭成藏模式。

     

    Abstract: The establishment of coalbed methane accumulation model in the mining area and the identification of the main factors of gas control can provide important basis for well pattern arrangement, drilling, fracturing, and drainage in the later stage. In this paper, the geological conditions and coalbed methane characteristics of Baiyanghe mining area in Fukang, Xinjiang are systematically studied. Combined with the grey correlation theory, the combined closed reservoir forming model of tight roof and floor, monoclinic structure and hydrogeological conditions is summarized. The results show that the thickness and gas content of 42 target coal seams in the mining area are large, which are positively related to the depth of the coal seam; The sandstone density of the direct roof and floor of the coal seam is good, forming good sealing conditions. The comprehensive analysis shows that the southern part of the mining area is located at the bottom of the monocline, with large burial depth, thick coal seam, high gas content and good sealing conditions, which is a favorable area for CBM enrichment.

     

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