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400625112 19 2014-06-12T08:07:16.063-06:00 96850 WPX ENERGY ROCKY MOUNTAIN LLC

1001 17TH STREET - SUITE #1200

DENVER CO 80202 Karolina Blaney 970 6832295 970 2859573 Karolina Blaney Environmental Specialist 2014-06-12T08:07:16.063-06:00 2014-06-12T08:07:16.03-06:00 437481 in process blaneyk 2014-06-11T15:55:44.187-06:00 blaneyk karolina.blaney@wpxenergy.com 0.00000 karolina.blaney@wpxenergy.com blaneyk blaneyk 2014-06-12T08:07:14.673-06:00 400621889 400625112 FISCHER, ALEX 2014-06-05T00:00:00-06:00 WELL 05 045 22139 GARFIELD NESW 2 7S 95W 6 Y CROP LAND hot, dry, sunny 0 0 The completions department was drilling the first plug on the PA 514-2 well (API # 05-045-22139) after hydraulic fracturing operations were completed when a casing valve washed out resulting in loss of well control. The gas pressure was releasing through the washed out valve. 82 bbls of drilling mud was pumped downhole in order to kill the well so that the compromised valve could be replaced. The well’s high pressure caused drilling mud to mist out of the casing valve for approximately 1.5 hrs during this operation before the well was killed and brought under control. The total volume of mud released is unknown at this time but is estimated to be less than 50 bbls. The vast majority of the released mud was contained within the pad perimeter, though a small portion misted on adjacent vegetation. 400621889 true 2014-06-05T00:00:00-06:00 39.464981 -107.969270 FEE WPX is the surface owner 0 0 0 false <_x0032_7_approved>false S false 0 0 0 >=20 and <50 0 true false true false false 0 2014-06-05T15:31:46.36-06:00 400625112 400625112 FORM 19 SUBMITTED 400625112.pdf 400625112 400625121 SITE MAP GV 86-2 Spill Map.pdf 584610 400625112 1 SPILL 2014-06-05T00:00:00-06:00 COGCC Dave Andrews

Phone call

970 6252497 400625112 2 SPILL 2014-06-05T00:00:00-06:00 COGCC Alex Fischer

Phone call

303 8942100 400625112 3 SPILL 2014-06-05T00:00:00-06:00 COGCC Stan Spencer

initial Form 19

970 6252497 400625112 4 SPILL 2014-06-05T00:00:00-06:00 County Kirby Wynn

Email

970 625-5905 400625112 5 SPILL 2014-06-05T00:00:00-06:00 Town/City Officials Steve Rippy

Email

970 285-9050 400625112 6 SPILL 2014-06-05T00:00:00-06:00 Town/City Officials Roger Bulla

Email

970 285-7000 400625112 7 SPILL 2014-06-05T00:00:00-06:00 Town/City Officials Stuart McArthur

Email

970 285-7630 400625112 8 SPILL 2014-06-05T00:00:00-06:00 County Morgan Hill

Email

970 625-5200 400625112 9 SPILL 2014-06-05T00:00:00-06:00 Fire Department David Blair

Email

970 285-9119 400625112 10 SPILL 2014-06-05T00:00:00-06:00 Water Intake Mark King

Email

970 285-7630 400625112 1 2014-06-12T00:00:00-06:00 0 0 true false false false false false false By field measurements and mapping with a Trimble GPS unit. Potts loam - Loam to clay loam 100 9 717 2960 976 On June 5th, 2014 at approximately 9:00 AM a snubbing unit crew was drilling out a kill plug on the PA 514-2 well. While drilling out the plug, the crew experienced an unexpected release of pressure due to a damaged/malfunctioning casing valve. Both the flow testers and the snubbing unit operator had checked the valve to ensure it was closed before drilling the kill plug. Both parties involved seemed to be under the impression the valve was properly closed and continued operations assuming the valve was in fact closed. Upon drilling the kill plug, it was determined that the valve was not completely closed resulting in a loss of well control. Attempts were made to regain control of the well and shut in the well. However with the casing valve not working properly, they were unable to regain control of the well. At this point the rig crew assisted the snubbing unit crew in attaching a mud line from the rig to the well in order to pump mud down hole in an attempt to kill the well. After the mud line was connected, WPX personnel took over the operation and pumped approximately 82 barrels of mud down hole to kill the well. During the process, some of the mud sprayed back out of the well onto the well pad. A majority of the drilling mud was contained to the pad surface and only a smaller amount misted the adjacent field. 25 bbls of mud mixed with rigwash was recovered. Three samples from the adjacent field were collected and has been submitted to an accredited laboratory and is being analyzed for the entire Table 910-1 analytical suite. The pad surface will be re-sampled once the pad dries out or when the drilling actives are completed. Further remedial actions, if warranted, will be based on these results. The mud that misted the cuttings management area will be sampled at the same time as the cuttings. 0 0 0 0 0 0 30 25 0 0 false false 0 0 false false false false false false false false true true false true 290 117 0 400625112 1 2014-06-12T00:00:00-06:00 false true false false On June 5th, 2014 at approximately 9:00 AM a snubbing unit crew was drilling out a kill plug on the PA 514-2 well. While drilling out the plug, the crew experienced an unexpected release of pressure due to a damaged/malfunctioning casing valve. Both the flow testers and the snubbing unit operator had checked the valve to ensure it was closed before drilling the kill plug. Both parties involved seemed to be under the impression the valve was properly closed and continued operations assuming the valve was in fact closed. Upon drilling the kill plug, it was determined that the valve was not completely closed resulting in a loss of well control. Attempts were made to regain control of the well and shut in the well. However with the casing valve not working properly, they were unable to regain control of the well. Prior to preforming any procedures on a live well, all active valves will be inspected and verified to be in good working order and functioning properly to ensure they will perform as designed. If a valve is found to be defective in any way, it will be brought to the attention of the WPX company representative on location immediately. No work will be performed if there is any question as to the integrity/functionality of a valve. false false false Thread was being aborted.