(2023021) Gas Flow Management Technology Designed to Decrease Downtime and Improve ESP Efficiency (Case Study – Midland Basin)

This paper explains the configuration, design, and mechanisms of an advanced gas regulator system installed underneath the ESP sensor to decrease downtime and stabilize the operational parameters of the pump. The gas regulation principle is based on the changes in the flow regimes found in unconventional wells where typically, gas slugging and high GLR frequently cause shutdowns and motor overheating. 
The case study presented in this abstract refers to a well-localized in Midland Basin that had a history of multiple shutdowns, erratic current behavior, unstable PIP, and high motor temperature peaks, all caused by a combination of high GLR and low fluid rates (for ESPs). The well produced a GOR of 5,959.6 SCF/STB and a GLR of 1,609 SCF/STB with a liquid rate of 330 BPD. The main objective of the installation of the Gas Flow management technology was to allow the ESP to run longer and deplete the PIP without cycling (less downtime) and maintaining constant motor load. After the installation, the ESP has not had any shutdowns due to gas in 3 months, operation frequency started at 50 Hz and then increased to 55 Hz which allowed it to deplete the PIP from 720 psi down to 465 psi.