Normally in tight gas sands, water production is not a problem but in such low
permeability reservoirs it is difficult to produce gas at commercial flow rates. Since
water is more viscous than gas, very little water is normally produced in low
permeability reservoirs. The production of large volumes of water from tight gas sands,
say 50-100 bbls of water per MMcf of gas constitutes a cause for concern. High water
production (>200 bbls of water per MMcf of gas) has been observed in the low
permeability Cotton Valley sands in the Caspiana, Elm Grove and Frierson fields of
North Louisiana.
This research evaluates water production in the above tight gas sands using field
data provided by Matador Resource, a member of the Crisman Institute in Texas A&M
university. The research is aimed at providing realistic reservoir scenarios of excess
water production in tight gas sands. Log analysis, property trends and well production
profiles have been used in establishing the different scenarios. The reservoir simulation
results and the production trends show a possible water source from faults and fractures
connecting the Travis Peak/Smackover sands to the Cotton Valley sands. An improved
understanding of the reservoir would help in further field development.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/4983 |
| Date | 25 April 2007 |
| Creators | Ozobeme, Charles Chinedu |
| Contributors | Holditch, Stephen A. |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | 32315713 bytes, electronic, application/pdf, born digital |
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