Question: As a production engineer, you have been tasked to oversight the production performance of wells located in Lease X of the RoadRunner field. You

   As a production engineer, you have been tasked to oversight the production 

As a production engineer, you have been tasked to oversight the production performance of wells located in Lease X of the RoadRunner field. You observed that observed water cut for Well ABC increased from 25% to 75% during a two-year period (2018-2020). Using an appropriate well performance model, demonstrate that impact of increasing water cut on the well performance. The relevant data is given below. Tubing shoe depth Tubing inner diameter Oil gravity 8,000 ft 2.5 in 35 API Oil viscosity 7 cp Gas-specific gravity 0.72 Flowing tubing head pressure 300 psia Flowing tubing head temperature 100 F Flowing temperature at tubing shoe 190 F Gas-liquid ratio (GLR) 850 scf/stb Interfacial tension 28 dynes/cm Specific gravity of water 1.02 H2O=1

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