新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (2): 176-177.

• 油气勘探 • 上一篇    下一篇

低煤阶煤层气藏水动力条件的物理模拟实验

王勃1, 姜波1, 王红岩2, 刘洪林2, 陈振宏2, 李贵中2   

  1. 1.中国矿业大学资源与地球科学学院, 江苏徐州 221008;
    2.中国石油 石油勘探开发科学研究院廊坊分院煤层气项目经理部, 河北廊坊 065007
  • 收稿日期:2005-07-29 修回日期:2005-07-29 出版日期:2006-04-01 发布日期:2020-10-30
  • 作者简介:王勃(1979-) , 男, 西安人, 在读硕士研究生, 构造地质与煤层气,(Tel) 010-69213277(E-mail) laowangtomstudent@sina.com.
  • 基金资助:
    “973”项目国家重点基础研究规划, 煤层气成藏机制及经济开采基础研究(2002CB211705) 资助

Experimental Study on Physical Modeling of Hydrodynamic Condition in Low-Rank Coalbed Methane Reservoir

WANG Bo1, JIANG Bo1, WANG Hong-yan2, LIU Hong-lin2, CHEN Zhen-hong2, LI Gui-zhong2   

  1. 1. Institute of Resource and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China;
    2. Department of Coalbed Project Management, Langfang Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Langfang, Hebei 065007, China
  • Received:2005-07-29 Revised:2005-07-29 Online:2006-04-01 Published:2020-10-30

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摘要： 水动力条件是影响低煤阶煤层气成藏的重要因素之一。利用煤层气成藏模拟装置模拟了低煤阶煤层气藏水动力条件。研究表明, 强烈的水动力交替作用使煤层气藏中的H2S 含量降低、甲烷碳同位素变轻、甲烷含量降低、氮气和二氧化碳含量增大。这些变化对煤层气成藏造成不利影响。同时, 对鄂尔多斯盆地东缘水动力条件进行了分析, 对比了煤层气藏保存条件的差异。

关键词: 低煤阶, 煤层气藏, 水动力条件, 模拟, 鄂尔多斯盆地

Abstract: Hydrodynamic condition is one of the critical factors that affect low-rank coalbed methane (CBM) accumulation. The CBM accumulation model is used to simulate the hydrodynamic condition of low-rank coalbed methane reservoir. Study shows that H2S and methane concentration will be reduced, δ13C1 be lightened, N2 and CO2 contents be increased under the strong hydrodynamic alternation, which have unfavorable impact on CBM accumulation. Also, this paper analyzes the hydrodynamic condition in eastern margin of Ordos basin and discusses the difference among conservation conditions in CBMreservoirs.

Key words: low coal rank, coalbed methane reservoir, hydrodynamic condition, simulation, modeling, Ordos basin

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