Characteristics and Origin of Coal Powder in Coalbed Methane Well

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  • 1.China University of Geosciences,Wuhan 430074,China;
    2.Oil Production Technology Institute of Huabei Oilfield Company,PetroChina,Renqiu 062552,China

Received date: 2013-01-26

  Revised date: 2013-05-10

  Online published: 2013-12-10

Abstract

Based on the observation of coal reservoir in coal mines,it was found out that the structural coal aggregates are the main occurrence of primary coal powder.According to the occurrence characteristics,the primary coal powder can be divided into fault coal powder and coal powder along seam.The comparative research on the compositions and microscopic characteristics of coal powder showed that the characteristics of coal powder produced from CBM wells were similar to coal powder along seam.Therefore,the coal powder produced from CBM wells are coal powder along seam.This research establishes the basis for the controlling of coal powder.
 

Cite this article

ZHAO Jun-fang,WANG Sheng-wei,QIN Yi,ZHAO Wen-xiu,CHEN Wen-wen,YANG Jian,LI Rui .
Characteristics and Origin of Coal Powder in Coalbed Methane Well[J]. Natural Gas Geoscience, 2013
, 24(6) : 1316 -1320 . DOI: 10.11764/j.issn.1672-1926.2013.06.1316

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