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Inspection Detail
Inspection: 310035555 - Patterson-Uti Drilling Co Lp Lllp Rig 135
Inspection Information - Office: Corpus Christi Area Office
Site Address:
Patterson-Uti Drilling Co Lp Lllp Rig 135
El Nino Feliz Ranch, Munoz #14, 14 Mi N Of
Zapata, TX 78076
Mailing Address:
Po Box 1416, Snyder, TX 79550
Union Status: NonUnion
SIC:1381
NAICS: 213111/Drilling Oil and Gas Wells
Inspection Type: Accident
Scope: Complete
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 06/16/2006
Emphasis: L:Oilgas
Case Closed: 11/09/2007
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 100212729 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 5 | 2 | 2 | 9 | ||
| Current Violations | 4 | 1 | 2 | 7 | ||
| Initial Penalty | $18,500 | $0 | $15,000 | $2,000 | $0 | $35,500 |
| Current Penalty | $5,750 | $0 | $3,750 | $500 | $0 | $10,000 |
| 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 | Serious | 5A0001 | 11/17/2006 | 11/24/2006 | $0 | $7,000 | $0 | 11/28/2006 | F - Formal Settlement | Citation has been deleted. |
| 2. | 01002 | Serious | 19100242 A | 11/17/2006 | 11/24/2006 | $1,750 | $3,500 | $0 | 11/28/2006 | F - Formal Settlement | |
| 3. | 01003 | Serious | 19100305 B01 | 11/17/2006 | 11/24/2006 | $750 | $1,500 | $0 | 11/28/2006 | F - Formal Settlement | |
| 4. | 01004 | Serious | 19100305 G02 II | 11/17/2006 | 11/24/2006 | $750 | $1,500 | $0 | 11/28/2006 | F - Formal Settlement | |
| 5. | 01005 | Serious | 19100307 B | 11/17/2006 | 11/24/2006 | $2,500 | $5,000 | $0 | 11/28/2006 | F - Formal Settlement | |
| 6. | 02001 | Repeat | 19100151 C | 11/17/2006 | 11/24/2006 | $0 | $7,500 | $0 | 11/28/2006 | F - Formal Settlement | Citation has been deleted. |
| 7. | 02002 | Repeat | 19100305 G02 III | 11/17/2006 | 11/24/2006 | $3,750 | $7,500 | $0 | 11/28/2006 | F - Formal Settlement | |
| 8. | 03001 | Other | 19040032 B02 II | 11/17/2006 | 11/24/2006 | $0 | $1,000 | $0 | 11/28/2006 | F - Formal Settlement | |
| 9. | 03002A | Other | 19100145 C02 I | 11/17/2006 | 11/24/2006 | $500 | $1,000 | $0 | 11/28/2006 | F - Formal Settlement | |
| 10. | 03002B | Other | 19100145 C03 | 11/17/2006 | 11/24/2006 | $0 | $0 | $0 | 11/28/2006 | F - Formal Settlement |
Investigation Summary
On June 8, 2006, Employee #1 was working at an gas well drilling site. For three days prior to the accident, the well had been receiving gas, but it had lost circulation. That is, drilling mud was flowing into the wellbore, but there was no mud returning to the drilling mud circulating tank. The employer needed to determine height of the fluid level. So that he could do that, stands of pipe were to be "tripped out." The first five stands were tripped out uneventfully, but on the sixth stand, the rotating rubber head gasket had to be removed. Suddenly, the well "kicked" during the process. Employee #1 was struck by pressurized mud and gas when he attempted to remove the bolt from the rubber gasket of the rotating head. He sustained injuries to several parts of his body, and he was killed.
Keywords: DRILL OPERATOR, GAS WELL, DRILLING MUD, WELL, DRILL RIG--NON-OIL, STRUCK BY, GAS WELL DRILLING, PRESSURE RELEASE
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 310035555 | Fatality | Other | Drillers, oil well |