| Incident
Description |
 |
Location |
The release
occurred at Drill Site 2H, which is in the Kuparuk oil production
field. Kuparuk is approximately 40 miles west of the Prudhoe Bay
oil field on the North Slope of Alaska. |
| Product/Quantity |
The initial
report from CPAI was that approximately 111,300 gallons (2,650
barrels) of a mixture of 30% seawater and 70% produced water was
released to both gravel pad and tundra. Subsequently, additional
calculations based on hole size, flow rate, and pressure data analysis
has re-evaluated that estimate at a reduced spill volume of 51,198
gallons (1219 barrels). Produced water is a mixture of water and
crude oil. |
| Cause |
The source
of the spill is a 6-inch produced water/seawater injection line
that transports water from the Central Processing Facility #2 (CPF-2)
to Drill Site 2H for injection. CPAI reported to ADEC that the
cause of the Kuparuk 2H produced water spill was attributed to
internal corrosion of the injection water pipeline. |
| Time/Date
of Spill |
The release
was discovered on Saturday March 26, 2005 at approximately 10:30
AM by ConocoPhillips Alaska, Inc. (CPAI) personnel, and reported
to ADEC at 11:05 am by CPAI. |
| Joint
Statement Regarding the Drill Site 2H Produced Water
Release |
| ConocoPhillips Alaska reported to ADEC that the cause of
the Kuparuk 2H produced water spill was attributed to internal
corrosion of the injection water pipeline. The company has
begun a comprehensive investigation, including a technical
review of its Kuparuk corrosion and monitoring mitigation program.
ConocoPhillips has worked closely with the ADEC on the response
and a remediation program for the 2-acre impacted area of
the tundra. In past injection water spills the flushing technique
has been successful in mitigating any lasting effects. The
response will continue until the ADEC concludes that it is
complete and the impacted areas clean. A plan was developed
which identifies specific tasks that must be accomplished
to achieve closure. It is estimated that cleanup will be
completed by the end of April 2005. |
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