SPE 169644 Increasing the Profits and Production of Mature Fields through Opti- mized Jet Pump Design & Operational Considerations – A Case Study Sheraz Ahmed, Khurram Farouque, Sheikh Yasir Saleem, Sharafat Ali, Manzoor Ahmad, Mehtab Ahmed Weatherford Oil Tools Limited, Oil & Gas Development Company Limited Copyright 2013, Society of Petroleum Engineers This paper was prepared for presentation at the SPE/PAPG Annual Technical Conference held in Islamabad, Pakistan, 26-27 November 2013. This paper was selected for presentation by an SPE program committee following review of information contained in an abstract submitted by the author(s). Contents of the paper have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material does not necessarily reflect any position of the Society of Petroleum Engineers, its officers, or members. Electronic reproduction, distribution, or storage of any part of this paper without the written consent of the Society of Petroleum Engineers is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of SPE copyright. ABSTRACT Economics changed dramatically in the last quarter of 2008 affecting investment decisions on major E&P activities. In this challenging economic climate, operators realize the value of maximizing production and recovery by employing production enhancement technologies developed and matured through the years. This paper signifies one of the most imperative and effi- cient methods of achieving this goal with a nominal amount of Capital investment. Jet pumping technologies have been applied at home for more than 20 years, and also possess a very distinctive advantage comparing with other types of lift. It has no moveable parts and depends only upon the energy transformation between the power fluid and the well fluid to lift it to the surface. Moreover, with the passage of time, many new methods and designs of Jet Pumps have also been developed to enhance the production further from existing wells. The aim of this paper is to illustrate the optimization of a variety of Operational considerations and surface parameters, for maximizing the productivity of a field through Jet Pumping systems. These include vessel pressure, injection parameters & effect of flow restrictions, Horse-Power requirement and the Nozzle-throat combination required for an efficient jet pump op- eration based on the true potential of the reservoir. This paper also includes several optimized Jet Pump designs & surface considerations that can further contribute to produc- tion enhancement of a mature producing oil field. It involves the matching of jet pump performance curves with PI/IPR of the well, evaluation of the pump design using JEMS and the Gains attained in different wells with the least amount of effort, along with all the lessons learnt for further improvements in detail. INTRODUCTION The first user of a water jet pump is said to have been James Thompson [1] in England circa 1852. The man who is said to have first worked on developing the theory of jet pump operation is J. M. Rankin [2] circa 1870. Subsequently, work was done by a number of men including Lorenz [3] in 1910. His modelling of the Pressure (and Velocity) losses during the fluid mixing has been used by many authors afterwards. While the work of Gosline and O’Brien [4] in 1933 is also considered to be the stand-