UPDATED: Oil well leak in Dunn County

(UPDATE: The below news release came out Wednesday. Beneath it is a link to the Thursday story by Dickinson Press reporter Lisa Call and then Thursday’s update by the Associated Press; at the very bottom is Friday’s Dickinson Press story.)

The North Dakota Department of Health just sent out this news release. The Dickinson Press is chasing this story right now for the Forum Communications papers. 

This morning, Denbury Onshore LLC reported that a wellbore failed in the course of a hydraulic fracturing operation at a drilling rig about 2 ½ miles southwest of Killdeer, N.D. Personnel from the North Dakota Department of Mineral Resources and the North Dakota Department of Health responded onsite. No injuries or offsite impacts have been reported. Mineral Resource officials are investigating the cause of the wellbore failure.

As a result of the incident, a mixture of primarily water and some oil began flowing from the ground in the area immediately around the wellhead. This was fully contained by a protective dike surrounding the site, preventing release into a nearby creek. All leaking fluid within the containment dike is being vacuumed into trucks and removed.

About 500 barrels have leaked thus far and all have been recovered. Coil tubing will be used to seal the wellbore below ground. Crews expect to have it fully cemented by later today or tomorrow.

The nearest city that accesses area ground water is Killdeer. The wellbore failure occurred more than a mile outside the city’s wellhead protection area, meaning that it will not affect Killdeer’s drinking water supplies. Based on preliminary information, the Department of Health has no evidence of adverse impact on private wells; however, the department will continue to assess any potential impact.

Beginning tomorrow, a number of monitoring wells will be drilled under the supervision of the North Dakota Department of Health around the wellhead area to determine if there was any underground seepage. If any seepage is detected, the Department of Health will oversee its removal.


Story by Lisa Call: http://www.thedickinsonpress.com/event/article/id/39260/


AP Thursday update:

BISMARCK, N.D. (AP) — A Texas company worked Thursday to seal the underground piping of a faulty oil well that has leaked more than 1,100 barrels of crude and water at the drill site in western North Dakota.

Officials say the spill happened about 2½ miles southwest of Killdeer and was reported early Wednesday morning. 

Bob Cornelius, a spokesman for Denbury Onshore, says the well continued leaking about two barrels of mostly water each minute on Thursday morning. 

He says 1,007 barrels of water used in so-called fracking operations and 125 barrels of oil had been recovered by Thursday morning.


Friday update: http://www.thedickinsonpress.com/event/article/id/39293/