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Occupational Safety and Health Administration OSHA

Inspection Detail

Inspection: 305656720 - Patterson-Uti Drilling Company Llc

Inspection Information - Office: Wyoming

Nr: 305656720Report ID: 0855610Open Date: 01/05/2004

Patterson-Uti Drilling Company Llc
Sec 35 T22n R115w
Kemmerer, WY 83101
Union Status: NonUnion
SIC: 1381/Drilling Oil and Gas Wells
NAICS: 213111/Drilling Oil and Gas Wells
Mailing: 1250 East Hwy 40, Vernal, UT 84078

Inspection Type:Accident
Scope:Partial Advanced Notice:Y
Ownership:Private
Safety/Health:Safety Close Conference:01/07/2004
Planning Guide: Safety-Construction Close Case:01/14/2005
Emphasis: L:Oildrill

Related Activity:TypeIDSafetyHealth
 Accident100980671    

Violation Summary
Serious Willful Repeat Other Unclass Total
Initial Violations 3 3
Current Violations 3 3
Initial Penalty $4,875 $0 $0 $0 $0 $4,875
Current Penalty $0 $0 $0 $2,437 $0 $2,437
FTA Amount $0 $0 $0 $0 $0 $0

Violation Items
# ID Type Standard Issuance Abate Curr$ Init$ Fta$ Contest LastEvent
  1. 01001 Other OD060001 AVI 04/05/2004 01/06/2004 $812 $1,625 $0 I - Informal Settlement
  2. 01002 Other OD030001 C 04/05/2004 01/06/2004 $812 $1,625 $0 I - Informal Settlement
  3. 01003 Other OD080005 AIV 04/05/2004 01/06/2004 $813 $1,625 $0 I - Informal Settlement

Accident Investigation Summary
Summary Nr: 200980381Event: 12/23/2003Employee Dies When Struck By Rogue Cement Hose
On December 23, 2003, Employee #1, a rig hand, and coworkers were conducting a top/surface cementing job. The cement line from the pump truck was positioned across the rig floor to the well casing and was not secured to prevent movement. While pumping the cement, within seconds, there was a sudden and drastic rise in pressure, increasing from 50 psi to 800 psi. In turn, the rate at which the cement was being pumped doubled, going from 4 barrels per minute (bpm) to 8 bpm. The cement line and 6-foot stinger, positioned between the well casing and conductor pipe, began to whip around. Employee #1 was struck in the head and knocked through an open and unguarded V-door and off the rig floor approximately 30 feet to the ground. Employee #1 died.
Keywords: air pressure, head, cementing, hose, struck by, concussion, mech malfunction
Inspection Degree Nature Occupation
1 305656720 Fatality Concussion Helpers, extractive occupations

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