Society
of Petroleum Engineers
Distinguished
Lecturer 2004-05 Lecture Season
Reservoir
Management Strategies: Applications
and Examples of Best Practices by John Nnaemeka Ezekwe
Kindly Sponsored by Waqi Sdn Bhd
Abstract:
Implementation
of sound reservoir management strategies is crucial in maximizing economic
recoveries. Correct identifications of key geologic features, rock properties,
state of reservoir fluids and dominant recovery mechanisms determine applicable
reservoir management strategies. The critical steps in devising technically
sound strategies should consider all available data and incorporate current
technologies. The management strategies selected must be economic, conserve
reservoir energy and adaptable to emerging technologies. Five reservoir
management principles are presented as guides for determination and
implementation of reservoir management strategies. These are: (1) Conservation
of reservoir energy (2) Early implementation of simple strategies (3) Sustained
and systematic collection of data (4) Continuous application of improved
recovery technologies (5) Long term retention of staff in multi-disciplinary
teams.
The
presentation will review case histories of reservoirs to illustrate the
applications of the five reservoir management principles. The first case history
is that of the 26R Reservoir. This is a classical example of a gravity drainage
reservoir that was later developed massively with horizontal wells. The
case histories of MBB/W31S Reservoirs and North Coles Levee Field are compared.
These reservoirs are analogous geologically. The impact of reservoir management
strategies on reservoir performance is reviewed by comparing the performances of
the two reservoirs. Reservoir management strategies should be adopted
early in the development plans for deep-water reservoirs. Emphasis is placed on
the use of geostatistics in reservoir characterization. Reservoir modeling is
discussed as an effective tool for reservoir management.
The presentation will demonstrate through case histories that technically sound reservoir management strategies can be successfully implemented on old and new reservoirs by using the five reservoir management principles in developing reservoir management plans
Biography:
John
Nnaemeka Ezekwe holds BS in
petroleum engineering, MS in chemical engineering, an MBA and a PhD degree in
chemical and petroleum Engineering, all from the University of Kansas.
Currently, he is a Reservoir Engineering Advisor with Devon Energy Corporation
on special reservoir projects. Previously, he worked for Pennzoil E&P Co. as
a Petroleum Engineering Advisor on worldwide projects. From 1982-1998, he worked
for Bechtel Petroleum Operations as Manager of Reservoir Studies, Reservoir
Engineering Supervisor and Staff Reservoir Engineer. And from 1977-1982, he was
a Research Associate at Kurata Thermodynamics Laboratory of the University of
Kansas. He is a registered engineer
in Texas and California and has published 15 technical papers on chemical and
petroleum engineering topics.
Contact
27 Treasure Cove Dr, The Woodlands, TX 77381-3304, Tel: 713.286.5856, Fax: 713.286.5788, john.ezekwe@dvn.com
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