Mooring
lines and the associated anchors attach floating offshore oil and gas
facilities to the seabed. They could be exposed to strong dynamic forces due
to surface conditions and loop currents. To perform under normal and
hurricane conditions, certain safety factors require specific attention
during the design and construction phases. Ultra-deep water exploration and
production has led to new challenges for operators, and new technology, such
as the use of polyester ropes, to meet these challenges. Mooring failures
during hurricanes Ivan, Katrina, and Rita caused a number of mobile drilling
units to go adrift. Anchors where drug by drifting platforms, in some cases
causing damage to pipelines.
MMS has focused the recent research activities on safety concepts, the
possible wear and tear of synthetic ropes, the damage survivability, rope
fatigue due to repetitive movements, environmental impacts and the stress
joint concepts (anchoring and upper attachments). Please note that some of
the projects are Joint Industrial Projects and the results contain
proprietary information that cannot be published before a set expiration
date.
Moorings
and Anchors Projects |
067 |
Rig Mooring Reliability |
116 |
Impact of Annual Ice with a Cable-Moored
Platform |
133 |
Synthetic-Fiber Mooring Lines for Deepwater
floating Production Facilities |
139 |
Operation RIGMOOR |
194 |
Calibration of Mooring
Design Code for
Floating Drilling and Production Platforms |
200 |
Securing Procedures for Mobile Drilling Units
(MODU's) in the Gulf of Mexico |
238 |
Recommended Procedure for Design of
Drag-Embedment (Fluke) Anchors |
315 |
Engineers Design Guide to Deepwater Fiber
Moorings |
316 |
Reliability Study for Synthetic Moorings |
344 |
Durability of Polyester Rope Moorings |
362 |
Deep Water Anchor Reliability |
366 |
Dynamic Analysis Tool for Moored Tanker-Based
FPSOs, including Large Yaw Motions |
368 |
Response of Tanker Based FPSO to GOM
Hurricanes |
369 |
Polyester Rope
Analysis Tool |
389 |
Characterizing Polyester Rope Installation
Damage |
394 |
Interim Damage Criteria for Replacing Damaged
Polyester Rope |
407 |
Damage Tolerance of Synthetic-Fiber Mooring
Ropes; Phase I: Small-Scale Experiments |
416 |
Damaged Polyester Rope-Large Scale Experiment |
423 |
Foundation/Mooring Risk of FPSOs |
437 |
Reliability
Analysis of Deepwater Anchors |
447 |
Qualifying
Composite Tendons and Risers |
469 |
Post Mortem
Failure Assessment of Drilling Rigs During Hurricane Lili |
557 |
Numerical Modeling of Torpedo Anchors |
575 |
Torpedo Piles for Gulf of Mexico Applications |
584 |
Arctic Offshore Technology Assessment of Exploration and Production Options
for Cold Regions of the US Outer Continental Shelf |
591 |
Evaluate Accuracy of Polyester Subrope Damage Detection
Performed by ROVs Following Hurricanes and Other Events |
592 |
Connector Designs for Top
and Bottom Tendon Connections |
603 |
Stability of Tension Leg Platforms with Damaged
Tendons |
604 |
Evaluation of Fatigue Life Models and Assessment
Practice for Tension Leg Platforms (Phase 1: Tendon System Fatigue) |
605 |
Cooperative Research on Extreme Seas and
their Impact to Floating Structures |
628 |
Assess the Design/Inspection Criteria/Standards for Wave
and/or Current Energy Generating Devices |
629 |
Assess the Design and Inspection Criteria and Standards for Wave and Current
Energy Generating Devices |
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Last Updated:
09/08/2008,
01:17 PM
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