ISSN: 2578-4994
Authors: Njeudjang K*, Youmbi JGT, Zanga AA, Teikeu WA and Nouck PN
In the field named “X” (for confidential reasons), there are electrical submersible pumps (ESPs) used in wells to produce at very high flow rates. The goal of this paper is to propose a completion design that enables the mechanical isolation of fluids produced from the reservoir while performing the ESP workover. The data are the reservoir properties and well architecture. To achieve this objective, it is necessary to select the materials, to choose the working pressures and temperatures, to choose the appropriate completion method, to draw the completion schematic with PowerDraw software and to write the running procedures. The obtained results are hydrogenated nitrile as suitable elastomers for the sealing elements, carbon steel as metallurgy, working pressure of 1100 psi and temperature of 110°C. The intermediate completion is found to be appropriate completion design. The intermediate completion design is used in the field X for the existing wells having at least casing size 7 inches, and for those having 9-5/8 inches, the Y-tool design is used.
Keywords: Well Completion; Intermediate Completion; Electrical Submersible Pump; Y-Tool Design; Power Draw; Economic Evaluation
