Volume 32 Issue 3
Jul.  2015
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Article Navigation >  DRILLING FLUID & COMPLETION FLUID  > 2015  >  32(3): 30-34
LUO Litao, LIU Weidong, JIANG Wei, GUAN Baoshan, HU Xinhai, CONG Su'nan. Evaluation, Operation Program Design and Application of Coal Powder Suspending Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(3): 30-34. doi: 10.3969/j.issn.1001-5620.2015.03.009
Citation: LUO Litao, LIU Weidong, JIANG Wei, GUAN Baoshan, HU Xinhai, CONG Su'nan. Evaluation, Operation Program Design and Application of Coal Powder Suspending Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(3): 30-34. doi: 10.3969/j.issn.1001-5620.2015.03.009
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Evaluation, Operation Program Design and Application of Coal Powder Suspending Agent

doi: 10.3969/j.issn.1001-5620.2015.03.009

  • Langfang Division of CNPC's Research Institute of Petroleum Exploration and Development, Guangyang District, Langfang City, Hebei 065007, China

  • Received Date: 2015-01-09
  • Publish Date: 2015-05-31
    Abstract
  • In coal-bed methane (CBM) drilling and coal bed fracturing operations, coal powder generated, if deposited on the bottom of the hole, imposes severe negative effect on the productivity of the CBM well. A coal powder suspending agent, FYXF-3, was developed aimed at solving this problem. FYXF-3 at concentrations not less than 0.3% can suspend coal powders in good stability, ensuring their flow to the surface along with production fluid. FYXF-3 had the ability to reduce surface tension of liquid, enhancing the production efficiency and minimizing formation damage. Based on these studies and the characteristics of the coal bed in Hancheng area, a reasonable fracturing program was designed and applied successfully in field operations.

     

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