Journal of Canadian Petroleum Technology
Volume 49,
Number 8,
August 2010,
pp. 53-58
Summary
A method, based on factual observations of naturally fractured reservoirs in
several countries, is presented for estimating distribution of hydrocarbon
cumulative production in wells drilled in fractured reservoirs of Types A, B or
C. These observations indicate that in reservoirs of Type C, most of the
cumulative production is provided by just a few wells, while the majority of
the wells contribute a small part of the reservoir cumulative production. In
reservoirs of Type B, the number of wells contributing significantly to
cumulative production becomes larger relative to the case of Type C reservoirs.
Finally, in reservoirs of Type A, a large number of wells contribute to field
production, as compared with Type B reservoirs.
The method is shown to be useful for tackling problems of practical
importance in naturally fractured reservoirs, including performing or not
performing infill drilling, estimating the variation in cumulative hydrocarbon
production per well in a given reservoir and estimating the number of wells
that might be required for a given field hydrocarbon recovery. The method is
illustrated using data from various fractured reservoirs, including the Barnett
shale and sandstone reservoirs in the United States, carbonate reservoirs in
Mexico and Venezuela and coalbed methane reservoirs and tight gas sands in
Canada.
© 2010. Society of Petroleum Engineers
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History
- Original manuscript received:
28 March 2009
- Meeting paper published:
17 June 2009
- Revised manuscript received:
7 June 2010
- Manuscript approved:
9 June 2010
- Published online:
5 August 2010
- Version of record:
3 August 2010
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