A Model for Gas Deliverability from Fractured Horizontal Wells in a Tight Gas Reservoir

作者：Xu, M. Y.^*; Liao, X. W.; He, Y. F.; Liao, H. M.

来源：Energy Sources, Part A: Recovery, Utilization, and Environmental Effects , 2014, 36(7): 738-746.

DOI：10.1080/15567036.2011.609870

• binomial deliverability equation
• tight gas reservoir
• formation conductivity
• fractured horizontal well
• fracture conductivity

When masses of gas gather to the horizontal wellbore, the high speed turbulent flow inside the artificial fractures will cause an additional pseudopressure drop. Therefore, the deliverability equation of a fractured horizontal well should be regarded as nonlinear in the tight gas reservoir. Considering the effect of non-Darcy percolation combined with the flowing interference of fractures, this article derives a new binomial deliverability equation for the tight gas reservoir, and gives a new method for predicting the productivity. Field data validate its feasibility and accuracy. In addition, the factors influencing the productivity are presented in this article.

• 出版日期2014-4-3
• 单位中国石油大学（北京）