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ARPN Journal of Science and Technology >> Volume 7, Issue 1, January 2017

ARPN Journal of Science and Technology


Theoretical Design Consideration of Artificial Lift and Tubing String for Solution Gas Drive

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Author B. O. Bimpong, E. Broni-Bediako
ISSN 2225-7217
On Pages 463-473
Volume No. 2
Issue No. 5
Issue Date June 01, 2012
Publishing Date June 01, 2012
Keywords Flow rate, recovery, reservoir, tubing string



Abstract

Solution gas drive reservoirs are characterized by rapid and continuous decline of reservoir pressure. This rapid and continuous decline of reservoir pressure causes direct decline of reservoir performance at early stages of the life of the reservoir. The principal source of energy which is gas liberation from the crude oil and the subsequent expansion of the solution gas as the reservoir pressure is reduced are mostly inadequate to produce such reservoirs to their full capacities. Ultimate oil recovery from natural flow of a solution-gas drive reservoir makes it one of the least efficient primary recovery mechanisms. This leaves a substantial amount of remaining oil residing in the reservoir which must be produced. Artificial lift technologies such as continuous gas lift, gas lift with velocity strings and positive displacement pumping are therefore employed at later phases of the reservoir’s life to increase the ultimate recovery which is what this research sorts to do. Data based on material balance for a solution–gas drive reservoir is analyzed to predict its primary oil recovery based on which gas lifting, velocity strings technology and positive displacement pumping are suggested to be employed with respect to time at different stages of reservoir’s life.


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