ConocoPhillips Alaska Inc. Produced Water Spill at DS1J Well 137 Sitrep 1
ALASKA DEPARTMENT OF ENVIRONMENTAL CONSERVATION
Division of Spill Prevention and Response
Prevention and Emergency Response Program
CPAI Drill site 1J-Well 137 Produced Water Spill
SITREP # 1
SPILL NUMBER: 12399911201
TIME/DATE OF SPILL: Approximately 1:00 p.m. on April 21, 2012
TIME/DATE OF SITUATION REPORT: 3:00 p.m. on April 23, 2012
TYPE/AMOUNT OF PRODUCT SPILLED: ConocoPhillips Alaska, Inc. (CPAI) estimated a spill volume of 710 gallons of produced water, released from a line supplying artificial lift fluid to a production well. CPAI reported that the crude oil concentration of the produced water is estimated to be 1,000 ppm, equaling 0.71 gallons of crude oil spilled.
INCIDENT LOCATION: Prudhoe Bay, Kuparuk Oil Field, Drill Site (DS) 1J, Well house 137.
CAUSE OF SPILL: A flow meter failed as produced water injection came back on-line following pigging operations. The exact cause of the failure is under investigation.
POTENTIAL RESPONSIBLE PARTY: ConocoPhillips Alaska, Inc.
RESPONSE ACTION: The CPAI Operator shut in the safety valve system and manual block valves to establish source control. Response workers used a vacuum truck to recover 25 barrels of fluid within the first 24 hours. Response workers used mechanical means to remove saturated snow and ice from the affected area.
SOURCE CONTROL: A CPAI employee witnessed the meter failure and was able to shut in the safety valve system and manual block valves to obtain source control within 5 minutes. CPAI has replaced the failed meter and the well has been brought back on-line.
RESOURCES AFFECTED: CPAI estimates that a 1600 square feet section of gravel pad was affected by this spill. There was no damage to tundra or water resources.
FUTURE PLANS AND RECOMMENDATIONS: ADEC will continue to monitor the response actions and review future plans for cleanup of contaminated soils. The well house will be removed temporarily to aid in cleanup of the infrastructure as well as the gravel pad. The well house will be steamed before it is returned.
UNIFIED COMMAND AND PERSONNEL:
Incident Commander: Barron Rutherford (Alaska Clean Seas)
SOSC: Tom DeRuyter (ADEC)
Field SOSC: Ashley Anderson (ADEC)
WEATHER: Cloudy. Patchy fog. Isolated snow showers in the afternoon. Highs 9 to 16 above. East winds around 10 mph.
TIME/DATE OF THE NEXT REPORT: As the situation warrants.
FOR ADDITIONAL INFORMATION CONTACT: Tom DeRuyter 907-451-2145
AGENCY/STAKEHOLDER NOTIFICATION LIST: This situation report was distributed to the agencies listed on the standard distribution list and includes: governor’s office, Senator Begich’s office, SEOC, DOI, NMFS, and USFWS.
Photographs and other spill information will be available for viewing at: http://www.state.ak.us/dec/spar/perp/index.htm
PHOTO: ADEC - A. Anderson
DS1-J spill cleanup. Snow removal. (Photo Date 4/22/2012)