Department of Administration

Alaska Oil and Gas Conservation Commission

Alaska Department of Administration, Alaska Oil and Gas Conservation Commission
Administration >  AOGCC >  Statistical Reports >  Current Oil & Gas Pools Statistics >  Barrow Field, East Barrow Gas Pool
AOGCC Pool Statistics Barrow Field, East Barrow Gas Pool
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  Operator: North Slope Borough Index Map
Discovery Well: North Slope Borough
S Barrow No. 12
Permit No. 100-035
API No. 50-023-20006-00-00
Sec. 23, T22N, R17W, UM
Depth: 2,287 MD / 2,287' TVD
May 4, 1974

Status: Producing
Location: Western Arctic Slope Area Location Map   DNR Unit Map
References: List of Orders Summary - Annotated Reference List  
Summary:

Near Point Barrow, hydrocarbons have accumulated in Jurassic-aged reservoir sandstone that lies along the western and eastern margins of an apparent impact crater located on the northern flank of the west-to-east trending Barrow High. Drilling and testing of the East Barrow Gas Field began in 1974 and continued through 1990. During this time eight wells were drilled in the field: South Barrow 12, 14, 15, 17, 18, 19, 20, and East Barrow 21. Regular gas production from the pool began in December 1981, peaked at about 2.75 million cubic feet of gas per day in early 1983, and then began to decline. During the first quarter of 2011, the East Barrow Gas Pool produced an average of 448,000 cubic feet of gas per day.


Geology:

Within the East Barrow Field, the main gas reservoir is the Barrow Sandstone, an informal member of the Kingak Formation. In well South Barrow No. 12, this sandstone lies between the measured depths of 1,940' and 2,132'. It deposited in a marine environment, and it consists of silty, very fine-to fine grained, moderately sorted sandstone that contains pyrite, siderite, glauconite, and calcite and is commonly interbedded with siltstone and shale. In the East Barrow Gas Field, porosity for the Barrow Sandstone ranges from 2 to 28 percent, averages 18 percent, and has a median value of 18 percent. Permeability for the Barrow Sandstone ranges from 0.01 to 3295 millidarcies, averages 133 millidarcies, and has a median value of 13 millidarcies. Reservoir quality rock also occurs within the Walakpa Sandstone, Pebble Shale, Torok Formation, and the Sag River Sandstone.

 

Struc Map  Strat Column Type Log
Production: Prod Chart    
  Gas (mcf) Water (bbls)
Cumulative 8,659,698 1,694
2005 Total
79,891 0
2006 Total
18,438 0
2007 Total
33,372 0
2008 Total
124779 0
2009 Total
106,449 0
2010 Total
158,836 0
2011 Total
56,1160 0
2012 Total    
2007 Rate (mcf/d)
91 0
2008 Rate (mcf/d)
342 0
2009 Rate (mcf/d)
292 0
2010 Rate (mcf/d)
435 0
2011 Rate (mcf/d)
154 0
2012 Rate (mcf/d)    
2008 Change (%)
276 0
2009 Change (%)
-15 0
2010 Change (%)
49 0
2011 Change (%)
-65 0
2012 Change (%)    
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