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Inspection Detail
Inspection: 310458716 - Unit Drilling Co
Inspection Information - Office: Utah Division Of Occupational Safety And Health
Site Address:
Unit Drilling Co
Unit Rig 109 Well #Tu3-35-7-21
Vernal, UT 84078
Mailing Address:
7130 S Lewis Ste 1000, Tulsa, OK 74136
Union Status: NonUnion
SIC:1381
NAICS: 213111/Drilling Oil and Gas Wells
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 01/24/2008
Planning Guide: Safety-Manufacturing
Emphasis:
Case Closed: 05/21/2009
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 101565844 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 1 | 1 | ||||
| Current Violations | 1 | 1 | ||||
| Initial Penalty | $3,500 | $0 | $0 | $0 | $0 | $3,500 |
| Current Penalty | $0 | $0 | $0 | $3,500 | $0 | $3,500 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citaton Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001 | Other | 20020 K | 01/29/2008 | 02/01/2008 | $3,500 | $3,500 | $0 | A - Amendment |
Investigation Summary
On December 29, 2007, three employees were holding a mud sleeve to capture and contain foam during an air-drilling operation with air pressure in a line of about 1,180 psi. The employees did not release the air pressure before they broke the line. The resulting release of air pressure, together with the air line's striking Employee #1 in the head, threw Employee #1 onto the cables of the drilling equipment draw works. The employee became entangled in the cables. He sustained a skull fracture from the line's hitting him and a major laceration on the inner side of his right leg caused by caused by the cable entanglement. Employee #1 was pronounced dead at the scene. Two other workers were thrown to the ground by the air explosion, but no injuries were reported to those workers.
Keywords: AIR PRESSURE, FRACTURE, DRILLING MUD, COMPRESSED AIR, EXPLOSION, LACERATION, SKULL, ENTANGLED, PRESSURE RELEASE, LEG
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 310458716 | Fatality | Other | Drilling and boring machine operators |