More collapse tests add to coiled tubing applications
- BP Exploration Inc., Anchorage, AK (US)
- Canadian Fracmaster Ltd., Anchorage, AK (US)
The collapse limits of thicker-walled coiled tubing have been determined to ensure safe and successful workover operations. Prudhoe Bay has been using 1.75-in OD coiled tubing for 2 years. When BP Exploration (Alaska) Inc. initially started using this larger size coil, collapse tests were run on 0.109-in. wall thickness coil. These tests provide a base curve by which much work has been performed in the western operating area of the Prudhoe Bay Unit. However, use of 1.75-in. coiled tubing has been expanded to include wall thickness of 0.125, 0.134, and 0.156-in. Except for theoretical calculations, no data were available to ensure that we would know the collapsed limitations for these sizes. To fill in this gap, further collapse testing has been done.
- OSTI ID:
- 5874067
- Journal Information:
- Oil and Gas Journal; (United States), Vol. 89:24; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
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03 NATURAL GAS
NATURAL GAS WELLS
FIELD PRODUCTION EQUIPMENT
OIL WELLS
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MECHANICAL TESTS
MECHANICAL PROPERTIES
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PRUDHOE BAY
ARCTIC OCEAN
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EQUIPMENT
MATERIALS TESTING
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020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
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