This paper aims to share insights from a case history of jet lift applications in the Permian Yeso play. Apache Corporation has been actively drilling horizontally and multistage fracturing the Yeso formation in Eddy County, N.M., targeting dolostone/limestone/sandstone reservoirs interbedded with shale and anhydrite. The Yeso yields oil and liquids-rich gas at depths of 5,000-6,000 feet.

Apache's initial strategy was to commence post-flowback production from fractured wells with electrical submersible pumps and then transition to rod lift as rates declined over time. However, as the wells approached the transition window between ESPs and rod pumps, high sand content, wellbore deviation and gas-to-liquids ratios caused frequent downtime for both types of lift, negatively impacting well performance.

These conditions caused Apache to experiment with other forms of lift to seek a solution in horizontal wells in the transitionary window. This paper focuses on the trial and success of using concentric jet pumps in place of ESP and rod lift systems. Not all horizontal wells will be ideal candidates for this form of lift. This is especially true when ESP or rod lift can lift the well without issue or with limited downtime due to efficiency differences. However, jet lift is an underutilized form of lift that can produce wells from early life, through the steep horizontal decline, and into the late life steady state decline. This paper aims to show the versatility, under the right circumstances, inherent to downhole jet pumps with an example of a successful installation.

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