Optimization of wellbore multiphase pipe flow calculation model for low permeability sandstone gas reservoir in Ordos Basin

Jianguo Zhang; Yunlong Xue; Tian Min; Fu Yu

doi:10.54097/hset.v40i.6757

Authors

Jianguo Zhang
Yunlong Xue
Tian Min
Fu Yu

DOI:

https://doi.org/10.54097/hset.v40i.6757

Keywords:

low permeability gas reservoir, pit shaft, Multiphase pipe flow, Relative coefficient of performance, Model optimization.

Abstract

The study of wellbore vertical pipe flow is the basis of reasonable production allocation and wellbore size optimization. According to the characteristics of low water gas ratio in sandstone gas reservoir of a gas field in Ordos Basin, the bottom hole pressure of typical gas wells in this area is calculated by using various wellbore pipe flow models such as Hagedorn brown, beggs Brill, Mukherjee Brill, gray and Aziz; Based on the measured bottom hole pressure, the relative performance coefficient evaluation method is used to optimize the wellbore calculation method. The results show that for the sandstone gas reservoir with low water gas ratio in gas field a, the calculation results of Hagedorn Brown model are in good agreement with the test results, so it is appropriate to use the Hagedorn Brown model to calculate the vertical pipe flow characteristics.

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