RP-1: Underwater Strengthening
and Repairing of Tubular Offshore
Structures
• Focus: Underwater repair techniques for
offshore tubular members
• Key Points:
• - Offshore tubular structures suffer corrosion
and fatigue damage in marine environments
• - Underwater strengthening avoids platform
shutdown and hot work
• - Grouted clamp systems are emphasized for
RP-2: FEA of Corroded Tubular TJoint Repaired with Grouting
• Authors: Deng et al.
• Publisher: Advances in Civil Engineering
(Hindawi), 2023
• Key Points:
• - Corrosion significantly increases stress
concentration at tubular joints
• - Finite Element Analysis used to simulate
corroded and repaired joints
RP-3: Hydrodynamic Load Analysis
of Grouting Clamp
• Focus: Effect of waves and ocean currents on
grouted clamps
• Key Points:
• - Combines experimental investigation with
numerical simulations
• - Hydrodynamic loads significantly influence
clamp stresses
• - Clamp geometry affects stability and load
RP-4: Experimental Testing of
Grouted Connections for Offshore
Substructures
• Authors: Dallyn P., El-Hamalawi A., Palmeri A.,
Knight R.
• Publisher: Structures Journal (Elsevier), 2015
• Key Points:
• - Reviews full-scale experimental testing of
grouted offshore connections
• - Performance depends on grout strength,
surface roughness, and confinement
RP-5: Design of Subsea Oil and Gas
Pipeline Repair Clamp
• Author: Prakash Bahadur Thapa
• Publisher: Conference Paper / ResearchGate,
2017
• Key Points:
• - Presents design methodology for permanent
subsea repair clamps
• - Includes axial and circumferential sealing
systems