Integrated Diagnostic Analyses and Application of Hydraulic Pumping Systems on Non-Flowing Oil Wells

Bright Eyindah Odike¹ , Kingdom Kponanyie Dune² , Bright Bariakpoa Kinate³

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.1 , pp.47-52, Jan-2021

Online published on Jan 31, 2021

Copyright © Bright Eyindah Odike, Kingdom Kponanyie Dune, Bright Bariakpoa Kinate . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The discovery of non-flowing oil wells poses a significant challenge to the Oil and Gas industry’s quest for a cost-effective, profitable, and safe business of maximizing production from producing wells. Production from such wells requires the application of an artificial lift system to supplement or maintain reservoir pressure, which is generally seen as the major factor for a non-flowing well condition. It is, however, necessary to troubleshoot a non-flowing well by conducting diagnostic analyses on both the reservoir and well parameters, in order to determine the actual parameter(s) accountable to the state of a non-flowing well condition. This work considers water-cut, reservoir pressure, and reservoir temperature as the major parameters in conducting integrated diagnostic analyses on a non-flowing well. Two case scenarios were studied on the well – conducting diagnostic analyses on the non-flowing well, and application of a Hydraulic Driven Downhole Pump on the same well. Results of the first case scenario shows that reservoir pressure was the dominant factor for a non-flowing condition in the well as a reservoir pressure of 3611.11psig enabled the well to flow even at an operating envelope of a water-cut value of 73.333% and a near reservoir temperature of 266.667°F, with respect to the given reservoir temperature of 250°F. At such operating envelope, the well produced at an oil rate of 1039.2 STB/day, gas rate of 0.41567 MMscf/day, water rate of 2857.8 STB/day, and a liquid rate of 3896.9 STB/day. In the second case scenario, the well flows even at a low reservoir pressure of 888.889 psig, producing at an oil rate of 962.8 STB/day, a gas rate of 0.38511 MMscf/day, a water rate of 3851.1 STB/day, and a liquid rate of 4813.9 STB/day. At reservoir pressures higher than 888.889 psig, the well yields higher oil production rates.

Key-Words / Index Term :
Diagnostic Analysis, Hydraulic Pumping, Non-flowing Oil Well, Reservoir Pressure, Water-cut, Liquid Rate

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