The following spills were reported to the Colorado Oil and Gas Conservation Commission in the past two weeks.
Information is based on Form 19, which operators must fill out detailing the leakage/spill events. Any spill release which may impact waters of the state must be reported as soon as practical. Any spill of five barrels or more must be reported within 24 hours, and any spill of one barrel or more which occurs outside secondary containment, such as metal or earthen berms, must also be reported within 24 hours, according to COGCC rules.
Encana Oil & Gas (USA) Inc. reported on June 24 a buried load line at the bottom of water tank broke after high groundwater caused the water tank to float, outside of Erie. It is approximated that less than a 100 barrels of produced water released. About 12 barrels of the spill were contained within the berm. A vacuum truck recovered the free-standing liquids. The contaminated soils were scraped and taken to a disposal site. To determine compliance with COGCC standards, samples of soil and groundwater will be collected.
Noble Energy Inc., reported on June 19 that a flowline for a well developed a leak, outside of Kersey. The leak surfaced in the landowners field. It is approximated that less than five barrels of condensate were released. The remediation options are being evaluated.
Foundation Energy Management LLC reported on June 17 that a leak developed in a flowline, outside of New Raymer. The leak released about four barrels of fluid, both produced water and oil released. The well was shut in, and the flowline was repaired. Soil samples revealed that the soil was clean. The soil was treated on site and returned to the hole. The open hole has been fenced off to prevent injury.
Foundation Energy Management LLC reported on June 17 that during minor contamination clean up, historical contamination was discovered outside of Frederick. It is unknown the amount of oil that was released, but it is estimated to have been less than five barrels. The well was shut in. The full extent of the release is still being examined.
Kerr McGee Oil & Gas Onshore LP reported on June 16 that water based drilling fluid overflowed from a storage tank, after a storage tank valve was left open, during surface casing drilling operations outside of Fort Lupton. It is estimated that less than 100 barrels of drilling fluid were released. About 10 barrels of water-based drilling fluid were recovered via vacuum truck. Soil samples will be collected for confirmation with COGCC standards.
Great Western Operating Company LLC reported on June 15 that an empty hose filled with fluid and kicked itself out of a half round tank, releasing a spill outside of containment, during a fluid transfer, outside of Brighton. It is estimated that nine barrels of fluid released. The derrick hand and mud engineer had overlooked a suction valve being open. The spill area was evaluated.
Kerr Mcgee Gathering LLC on June 12 that during the transfer of liquids from a condensate tank, the produced water sump overflowed, outside of Brighton. The spill released about two barrels of produced water and one barrel of condensate onto the ground surface outside of containment. The release stopped after the valves to the vessel were shut. Approximately two barrels of liquid were recovered with a vacuum truck. At the initiation of an excavation, historical impacts were discovered. Excavation activities are still ongoing.
Kerr McGee Oil & Gas Onshore LP reported on June 10 that petroleum hydrocarbon impacts were discovered beneath the produced water sump, following construction activities outside of Milliken. It appeared that there was no indication of a leak in a dumpline or produced water sump. It is unknown the volume of condensate and produced water that released, but it is approximated to have been less than five barrels. Groundwater samples were submitted for analysis and it was found that benzene concentrations exceeded COGCC standards.
This article was from Greeley Tribune, Colo. and was legally licensed through the NewsCred publisher network.