西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (2): 90-92.DOI: 10.3863/j.issn.1674-5086.2009.02.023

• 石油与天然气工程 • Previous Articles     Next Articles

INFLOW PERFORMANCE AND AFFECTING FACTOR OF HORIZONTAL WELLS IN LOW PERMEABILITY RESERVOIR

ZHAO Jing1，2   

  1. 1.Exploration and Development Institute of Jilin Oilfield，CNPC，Songyuan Jilin 138000，China； 2.College of Earth Sciences，Daqing Petroleum Institute，Daqing Heilongjiang 163318，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

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Abstract: Based on non-Darcy flow and existing threshold pressure in low permeability，a theoretical model of horizontal well oil-gas flow through porous media is developed，which supports application of horizontal well IPR analytical technique in low permeability reservoirs.The affecting factors of horizontal well IPR，such as threshold pressure gradient，boundary pressure，boundary radius，straight slope of，straight intercept of are analyzed.The results show that when the smaller the threshold pressure gradient is，the higher the horizontal well production is，and when the bigger boundary pressure is，the higher the horizontal well production is，and when the smaller boundary radius is，the higher the horizontal well production is，and when the bigger straight slope of is，the higher the horizontal well production is，and when the bigger straight intercept of is，the higher the horizontal well production is in the same bottom hole flowing pressure in low permeability reservoirs.

Key words: low permeability, horizontal well, threshold pressure, inflow performance, affecting factor

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