Inspection Detail

Inspection: 306755950 - Grey Wolf Drilling Company L.P. Rig 517

Inspection Information - Office: Corpus Christi Area Office

Inspection Nr: 306755950

Report ID: 0626000

Date Opened: 07/14/2003

Site Address:
Grey Wolf Drilling Company L.P. Rig 517
Bloomberg # 22 Starr Co. Xavier Zamora Survey A699
Sullivan City, TX 78595

Mailing Address:
10370 Richmand Ave. Suite 600, Houston, TX 77042

Union Status: NonUnion

SIC:1381

NAICS: 213111/Drilling Oil and Gas Wells

Inspection Type: Accident

Scope: Complete

Advanced Notice: Y

Ownership: Private

Safety/Health: Safety

Close Conference: 07/23/2003

Emphasis: L:Oilgas

Case Closed: 03/15/2005

Related Activity
Type	Activity Nr	Safety	Health
Accident	100211754

Violation Summary
Violations/Penalties	Serious	Willful	Repeat	Other	Unclass	Total
Initial Violations	6	1	2	1		10
Current Violations					9	9
Initial Penalty	$33,000	$70,000	$47,500	$1,000	$0	$151,500
Current Penalty	$0	$0	$0	$0	$105,000	$105,000
FTA Penalty	$0	$0	$0	$0	$0	$0

Violation Items
#	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	01/09/2004	02/05/2004	$0	$7,000	$0	01/29/2004	F - Formal Settlement	Citation has been deleted.
2.	01002	Unclass	19100141 C01 III	01/09/2004	01/15/2004	$11,667	$2,500	$0	01/29/2004	F - Formal Settlement
3.	01003	Unclass	19100242 A	01/09/2004	01/15/2004	$11,667	$2,500	$0	01/29/2004	F - Formal Settlement
4.	01004	Unclass	19100305 B01	01/09/2004	01/15/2004	$11,667	$7,000	$0	01/29/2004	F - Formal Settlement
5.	01005	Unclass	19100305 E01	01/09/2004	01/15/2004	$11,667	$7,000	$0	01/29/2004	F - Formal Settlement
6.	01006A	Unclass	19100307 B	01/09/2004	01/15/2004	$11,667	$7,000	$0	01/29/2004	F - Formal Settlement
7.	01006B	Unclass	19100307 B02 II	01/09/2004	01/15/2004	$0	$0	$0	01/29/2004	F - Formal Settlement
8.	02001A	Unclass	19100023 A08	01/09/2004	01/15/2004	$11,667	$70,000	$0	01/29/2004	F - Formal Settlement
9.	02001B	Unclass	19100132 D01 I	01/09/2004	01/15/2004	$0	$0	$0	01/29/2004	F - Formal Settlement
10.	03001	Unclass	19100151 C	01/09/2004	01/15/2004	$11,667	$35,000	$0	01/29/2004	F - Formal Settlement
11.	03002	Unclass	19100305 G02 III	01/09/2004	01/15/2004	$11,667	$12,500	$0	01/29/2004	F - Formal Settlement
12.	04001	Unclass	19100157 E03	01/09/2004	01/15/2004	$11,664	$1,000	$0	01/29/2004	F - Formal Settlement

Investigation Summary

Investigation Nr: 200211365

Event: 07/13/2003

Pressure release kills two employees and hospitalizes third

At approximately 11:15 a.m. on July 13, 2003, during oil well drilling operations, a nipple in the permanent kill line failed and released pressurized drilling mud at approximately 2670 psi. Three employees were thrown into the 8-foot-deep cellar that contained drilling fluids. Two employees died as a result of multiple injuries caused by the explosive blast and the third employee was hospitalized with leg fractures.

Keywords: FRACTURE, OIL WELL DRILLING, EXPLOSION, STRUCK BY, PRESSURE RELEASE

Investigated Inspection
#	Inspection	Degree of Injury	Nature of Injury	Occupation
1	306755950	Fatality	Other	Drillers, oil well
2	306755950	Hospitalized injury	Other	Drillers, oil well
3	306755950	Fatality	Other	Drillers, oil well

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