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All Industries – Vibration, Acoustic and Thermal Insulation
Offshore
Flexible joint
Presentation
- Use of high resistance steels and hydrogenated nitrile butadiene elastomer (HNBR) with excellent resistance to hydrocarbons
- Diameters from 8’’ to 20’’
- Maximum angle of rotation ±21° for single LEC to ±36° for double LEC placed opposite one another
- Receiving structures: semi-open steel receptacles or with I-tubes and hydraulic jack pre-tension system
Advantages
-Considerable reduction of stresses from relative movements between the offshore float and production and/or export lines
- Resistance to hydrocarbons
- Capable of:
- Accepting high rotation angles
- Withstanding working pressures up to 700 bars
- Withstanding line tensions up to 600 tons
- Long operating lifetime: 25 years of service with a safety coefficient of 10 for the design
Applications
- Use on all rigid cable export support lines transporting gas or petroleum and also on water injection lines.
- Adaptation to all types of offshore production floats (FPSO, Semi-sub, TLP, SPAR) and loading buoys.
More informations on Techlam website
Shock pad
Presentation
Shock pads for offshore applications are laminated parts (rubber/metal) issued from the “Bridge Bearing Technology”. They are big-size elements that can withstand very high loads (more than 2000 tons) with a small deflection.
Applications
These parts are used:
- On drilling platforms, fixed platforms, FPSO, TLP.
-As a DSU operation alternative for the transportation of a platform on to a barge to reduce the barge movements resulting from the swells.
- For earthquake-proofing: installed between the foundations and the building, this type of shock pad, thanks to its high rate of shear allows large radial displacement in heavy vertical load conditions.
- Diameters from 8’’ to 20’’
- Maximum angle of rotation 21° for single LEC to 36° for double LEC placed opposite one another.
-Receiving structures: semi-open steel receptacles or with I-tubes and hydraulic jack pre-tension system
More informations on Paulstra Vibrachoc the website
Shock absorbers for platform installation (LMU - Leg Mating Unit / DSU Deck Support Unit)
To reduce the impact loads, two types of shock-absorbing installation aids are defined:
• Leg Mating Units (LMUs) to reduce the impact loads in vertical and lateral directions between Deck stabbing cones and jacket legs during the installation.
• Deck Support Units (DSUs) are installed in the Deck Support Frame (DSF), to transfer any impact loads between vessel and Deck underside arising after completed load transfer.
Advantages
This type of damper is composed of "high modulus" rubber components accepting loads to ten times higher than those supported by usual rubber.
Each LMU is designed following to customer specification.
Applications
Bayu Undan Project
Sakhalin Project
East Area Project
Nanbao Project
More informations on Paulstra Vibrachoc website
