Bend Arch–Fort Worth Basin
| Bend Arch–Fort Worth Basin Province | |
|---|---|
 |
|
| Country | United States |
| Region | North-Central Texas |
| Offshore/onshore | Onshore |
| Operators | Devon Energy, Chesapeake Energy, EOG Resources, XTO Energy, EnCana, Range, ConocoPhillips, Quicksilver, Denbury |
| Field history | |
| Discovery | 1900s |
| Start of production | 1917 |
| Peak of production | 1960s |
| Production | |
| Current production of gas | 200,000×106 cu ft/d (5,700×106 m3/d) (2002) |
| Producing formations | Barnett Shale, Ordovician, Permian |
The Bend Arch–Fort Worth Basin Province is a major petroleum producing geological system which is primarily located in north central Texas and southwestern Oklahoma. It is officially designated by the United States Geological Survey (USGS) as Province 045 and classified as the Barnett-Paleozoic Total Petroleum System (TPS).
Oil and gas in Province 045 are produced from carbonate and clastic rock reservoirs ranging in age from the Ordovician to the Permian. The 1995 USGS Assessment of undiscovered, technically recoverable oil and gas identified six conventional plays in Province 045, which are listed below in Table 1: One continuous unconventional play, hypothetical "Mississippian Barnett Shale" (4503), was also considered. The cumulative mean of undiscovered resource for conventional plays was: 381 million barrels (60.6×106 m3) of oil, 103.6 million barrels (16.47×106 m3) of natural gas liquids, 479 billion cubic feet (13.6×109 m3) associated gas, and 1,029 billion cubic feet (29.1×109 m3) non-associated gas.
Notes:
1. Assessment unit number also indicates time span of stratigraphic units.
The USGS assessment of undiscovered conventional oil and gas and undiscovered continuous (unconventional) gas within Province 045 resulted in estimated means of 26.7 trillion cubic feet (760×109 m3) (Tcf) of undiscovered natural gas, 98.5 million barrels (15.66×106 m3) of undiscovered oil, and a mean of 1.1 billion barrels (170×106 m3) of undiscovered natural gas liquids. Nearly all of the undiscovered gas resource (98%, 2.62 × 1013 cu ft or 7.4 × 1011 m3) is considered to be in continuous accumulations of nonassociated gas trapped in strata of two of the three Mississippian-age Barnett Shale Assessment Units (AUs) - the Greater Newark East Frac-Barrier Continuous Barnett Shale Gas AU and the Extended Continuous Barnett Shale Gas AU (2.62 × 1013 cu ft combined). The remaining 467 billion cubic feet (13.2×109 m3) of undiscovered gas resource in the Province is in conventional nonassociated gas accumulations (3.586 × 1011 cu ft or 1.015 × 1010 m3) and associated/dissolved gas in conventional oil accumulations (1.084 × 1011 cu ft or 3.07 × 109 m3). The Barnett-Paleozoic TPS is estimated to contain a mean of 409.2 billion cubic feet (11.59×109 m3) of conventional gas, or about 88% of all undiscovered conventional gas, and about 64.6 million barrels (10.27×106 m3) of conventional oil, or about 65% of all undiscovered oil in Province 045.
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