Event date and time of occurrence:
- Stuck 1/12/06 @1:35
- Multiple recovery attempts from 1/12/06 to 1/26/06
- Request to Abandon Source made by telephonic contact 1/25/06 @ 12:30 CST to Texas DSHS.
- Written notification to DSHS dated 1/26/06.
Date notified of event by licensee: Incident Investigation received the written notification dated 02/06/06.
Radionuclide, activity:
(1) - Cs-137 @ 1.7 Ci
(1) - Am241Be @ 16 Ci
Sealed source, device, etc, (make, model #, serial #): Well logging tool - sealed neutron generator tube
Leak test information, when applicable:
(1) Cs -137 - 1/12/06 - 9.48E-06 microcuries
(2) Am241BE - 1/12/06 - 1.52E-01 microcuries
Equipment (make, model #, serial #), and clear description of any equipment problems:
(1) Cs- 137 - Amersham Corp., M# CDC.CY3, S# A5006
(2) Am241BE - Gammatron, Inc., M# NSR-F (AN-HP) S# G5044
Cause, and contributing factors
While logging down at a location 14 miles West South-West of Sonora, Texas (Sawyer Canyon Field), the logging unit had multiple failures, causing a free spool of tools & 18,000 feet of cable to enter into the hole. The hole was drilled on AIR & was never loaded with fluid. Fishing tool company attempted ~11 runs to recover tools. Hole cemented on 1/27/06 @ 18:00
Licensee corrective actions:
(1) Cs- 137 Density Source abandoned @ 8,607 feet.
(2) Am241BE Neutron Source abandoned @ 8,590 feet.
Abandonment plaque constructed with the relevant abandonment depth location information. Well depth: 8, 625 feet. Special instructions to not enter the well before contacting Radiation Control - DSHS.
Provide status through resolution (update record when found):
Well sealed with cement & abandoned 1/27/06. Dominion E&P, Inc., Sutton County, Texas
Texas Incident No.: Texas, I-8306
Abandoned in accordance with
10CFR39.77[c].