American Oil and Gas Reporter - February 2016 - 33
Geophysical Techniques
Redefining Reserves Potential
Of 'Mature' South Texas Field
By Joe Sonnier,
Scott Scholz and Bruce Moriarty
HOUSTON-Introducing advanced geophysical, horizontal drilling and multistage
fracturing technologies in old geology is giving new life to Swift Energy Company's
AWP Field in South Texas, considerably extending the limits of the field and
enhancing economics through improved well performance and recovery.
Located in McMullen County, AWP is Swift Energy's oldest producing property.
But it also is where Swift has implemented an active horizontal program targeting
the Olmos tight sandstone as well as the underlying Eagle Ford.
The Upper Cretaceous Olmos is found at depths of 9,000-11,000 feet. The
permeability of the soft, fine-grained sandstone is 0.1 millidarcies or less, requiring
hydraulic fracturing to yield economic quantities of liquids-rich gas. Production from
the depletion-drive Olmos reservoir averages 61 percent dry gas, 32 percent natural
gas liquids, and 7 percent oil on a barrel of oil equivalent basis.
FEBRUARY 2016 33
American Oil and Gas Reporter - February 2016
Table of Contents for the Digital Edition of American Oil and Gas Reporter - February 2016
Contents
American Oil and Gas Reporter - February 2016 - Cover1
American Oil and Gas Reporter - February 2016 - Cover2
American Oil and Gas Reporter - February 2016 - Contents
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American Oil and Gas Reporter - February 2016 - Cover3
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