U.S. Chemical Safety Board continues their investigation into fatal gas well explosion in Quinton

Posted at 2:18 PM, Jan 31, 2018
and last updated 2018-01-31 15:18:57-05

QUINTON--The U.S. Chemical Safety Board continues their investigation into the Fatal Gas Well Explosion in Oklahoma.

The U.S. Chemical Safety Board is in the early stages of its investigation into the fatal gas well explosion near Quinton, Oklahoma. Since arriving on scene on January 24, the following facts have been gathered:
• Red Mountain Operating (RMO) is the lease holder and operator of the well involved in the incident – referred to as the Pryor Trust 0718 1H-9 well.
• In drilling, the operator is responsible for the well’s design and the drilling program, which should account for well-specific conditions that could increase the risk or complexity of the drilling contractor’s various drilling and well control operations.
• The drilling contractor, in this case Patterson-UTI Drilling Company, LLC (Patterson-UTI), brings the infrastructure (drilling rig) and supplies the workforce (rig crew) which operates the drilling rig. Consequently, the drilling contractor also has more direct control over the primary operations (drilling) and emergency response (well control).
• Another well had recently been drilled by Patterson-UTI on this pad without incident. Drilling of 1H-9 began on January 11, 2018, and currently the CSB is unaware of any deviations from the original well plan. At the time of the incident, the rig crew had recently pulled the drillpipe and associated drilling tools out of the well in preparation to change out the drill bit.
• Both RMO and Patterson-UTI have cooperated with the CSB’s investigation and promptly provided the well plan, daily drilling reports, and electronic rig data.
• The CSB is currently reviewing that information and plans to interview eye witnesses and others present at the wellsite beginning as early as next week.
• Investigators will return to the site to continue their field work as key pieces of equipment are ready to be collected.

The CSB is an independent, non-regulatory federal agency whose mission is to drive chemical safety change through independent investigations to protect people and the environment. The agency’s board members are appointed by the President and confirmed by the Senate.


The 911 calls from the explosion were released this week. 

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