Petroleum & Petrochemical Engineering Journal (PPEJ)

ISSN: 2578-4846

Research Article

Completion Design in Petroleum Well with Two Different Reservoirs

Authors: Chamgoué AC, Sop BT, Sondi GA, Kibanya NN*, Albert Kadji and Kingni ST

DOI: 10.23880/ppej-16000359

Abstract

This paper proposes an economical and profitable completion method capable of producing in two different reservoirs of a well named "X" (for confidential reasons) in a single descent. The data used are pressure, volume and temperature (PVT), reservoir properties, well architecture, and drilling data. To achieve the desired objective, it is necessary to make the selection of materials, the operating pressures and temperatures, the choice of the appropriate completion design, the installation procedure, the nodal analysis, and finally, the economic balance sheet. Two completions of well X are considered; known as the single string completion, and the dual completion. The oil production flow rate of the well X after the single string completion is 5964.11 STB/D and the cost of equipment used for the single string completion design are 137,500 $. The oil production flow rate of the well X after the dual completion is 5700 STB/D and the cost of equipment used for the double completion design is 147,600 $. The appropriate completion for well X is the single string completion because it is less expensive and performs better in terms of gain and oil flow rate produced. The results obtained are hydrogenated nitrile (HNBR) as a sealing element, 258°F and 5500 PSI as pressure and operating temperature for the design of the single string completion. And the most appropriate type of design is the annular tubing completion. In this field named "Y" (for confidential reasons), the design of single string completion is made with the tubing of 3-1/2", weight of 10.2 ppf, a range of 30 ft and a hydro trip sup of 3-1/2". The financial component shows a return on investment from one year eight months.

Keywords: Well; Single String Completion; Dual Completion; Power Draw Software; Prosper Software; Payback Period

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