The Controlling Law of Hydrodynamic Conditions and Coalbed Methane of Main Aquifers in Hedong Coalfield
详细信息
- 责任者：Lian Huiqing (North China Institute of Science and Technology ; Yanjiao 065201 ; China) ; Yin Shangxian
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(2)
- 关键词：煤层气 ; coalbed gas ; 山西 ; Shanxi Province
- 页码：p.252-258
- 图表：illus., 1 table, 14 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
In this paper,take the direct aquifer of the main mining coal seams in the Hedong coalfield as a research target,select ground water level,salinity,water inflow as three index to characterize the hydrodynamic conditions,runoff intensity of groundwater circulation and water richness of aquifer,detailed discussion on the role of hydrodynamic conditions of main aquifer on the coalbed methane reservoir in this area have been carried out.The law of controlling factors of hydrodynamic field on gas shows: the central and southern regions are favorable area for the enrichment and accumulation of coalbed methane(CBM).Based on this,the correlation between this law and the measured gas-bearing property of coalbed has been analyzed.The measured gas-bearing property of coalbed can be used to verify the conclusions by the law.Using drilling data,the CBM advantage mining regions of Shanxi and Taiyuan arquifers are predicted.They are divided into three and five districts,respectively.The most favorable area of Shanxi Formation is near 356# and 343# drilling wells,and the favorable area of Taiyuan Formation near 311# and 359# drilling wells.