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Technology
Assessment & Research (TA&R) Program
| Project Number |
191 |
| Date of
Summary |
March 31, 1995 |
| Subject |
Pressure Ridge Ice
Scour Experiment (PRISE) |
| Performing
Activity |
Centre for Cold Oceans Resources
Engineering (C-CORE) |
| Principal
Investigator |
Dr. Chris
Woodworth-Lynas |
| Contracting
Agency |
Minerals Management
Service |
| Estimated
Completion |
Completed |
| Description |
This is a Joint Industry Project
(JIP). The most likely transportation mode, for oil and gas, in the Arctic and sub-Arctic
offshore regions is a product pipeline laid on or under the seabed. Marine pipelines in
areas frequented by ice are threatened by grounded or scouring ice masses which occur
periodically through the ice season. Pipelines must be protected by trenching or burial to
a safe, yet manageable and economical, depth below the seabed. The major problem facing
industry planners, regulators, and design engineers concerns the depth of burial required
or trenching and trench backfill requirements. |
| Progress |
Completed. This project is being
continued as part of Project Number 271. Centrifuge
test PRISE 03 investigated the influence of cut depth on seabed scour. Model preparation
began on August 1, 1994. Centrifuge testing was conducted on August 25, 1994. Post test
investigations and model excavations were carried out during the week of August 29.
Centrifuge test PRISE 04 investigated the influence of attack angle on seabed scour. Model
preparation began on August 29, 1994, with centrifuge testing being conducted on September
20, 1994. Centrifuge test PRISE 05 investigated the influence of cut depth on seabed
scour. Model preparation began on September 13, 1994, with centrifuge testing conducted on
October 5, 1994. Post test investigations were conducted during the week of October 10,
1994. |
Reports |
BJ (4188
KB; 47 pages)
 |
Pressure Ridge Ice
Scour Experiment (PRISE), Phase 3C: Extreme Ice Scour Event Modeling and Interpretation,
Milestone 2: Centrifuge Test PRSA02 Data Report submitted by the Centre for Cold Ocean
Resources Engineering of the University of Newfoundland, St. Johns, Newfoundland, Canada,
April 1997. |
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BK (3734
KB; 45 pages)
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Pressure Ridge Ice
Scour Experiment (PRISE), Phase 3C: Extreme Ice Scour Event Modeling and Interpretation,
Milestone 2: Centrifuge Test PRSA03 Data Report submitted by the Centre for Cold Ocean
Resources Engineering of the University of Newfoundland, St. Johns, Newfoundland, Canada,
April 1997. |
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