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Offshore Oil & Ocean Engineering


February 2016 Issue

Statoil Service Agreements
With Aker, OneSubsea

Statoil Petroleum AS has signed master service agreements with Aker Solutions ASA and OneSubsea Processing AS. The agreements form the basis for potential new EPC contracts (engineering, procurement and construction) for subsea equipment in the medium-term future.

An EPC option agreement for subsea production system (SPS) has also been signed with OneSubsea, including framework agreements for subsea operations services and subsea add-ons.

In today’s oil price environment, sustained focus on costs and efficiency will be the key to develop several currently marginal prospects and discoveries. The agreements will simplify collaboration.

Miko Creates Sea Chest
Covers, Cofferdams

Odfjell Drilling recruited Miko Marine to design and manufacture a complete package of sea chest covers and cofferdams that use magnetic holding technology for increased efficiency. The new closures have been designed specifically for use during work on the semisubmersible drilling rig Deepsea Stavanger.

Miko’s naval architects designed a system that employs a primary seal that clamps over each of the four sea chest gratings and creates a watertight closure. There was also a requirement for two cushioned magnetic plates for closing off overboard lines for the echosounder and the speed log.

Four powerful Miko MAM permanent magnets will hold each of the four cofferdams tight against the hull. With each magnet capable of holding up to 450 kg, it is possible to achieve an instant watertight seal for the cofferdams without the need for any other attachments or holding mechanisms being fitted to the hull. Each magnet is connected to the cofferdam via a special rubber link that introduces an element of flexibility that enables it to be fitted flush onto the hull while allowing the cofferdam to be positioned precisely before it is tightened into place. When the job is finished, each magnet is simply freed by having its release lever lifted by a diver or ROV so the cofferdam can be retrieved.

Record 81-M Evac
Chute System

VIKING Life-Saving Equipment A/S has received type approval from Lloyd’s Register for its new offshore evacuation chute system, certified to operate at an unprecedented evacuation height of 81 m to sea level.

The system’s certified evacuation capacity is 146 people in just 10 min., comfortably beating the threshold required by maritime authorities, even from such an extreme height.

With rig sizes increasing and evacuation heights exceeding what is possible with enclosed davits and lifeboats, chute-based evacuation solutions have become increasingly important.

JIP for Helideck
Turbulence Analysis

Computational fluid dynamics (CFD) is widely used in high-level analyses of offshore helideck turbulence levels to assess possible flight restrictions. However, the current international regulations’ imposed criteria lead to results that might not reflect operational experience, thus, they might also conservatively restrict helicopter operations. DNV GL is launching a joint industry project (JIP) to bridge the gap between advised and actual hazardous flight conditions, ensuring cost-effective designs and helicopter operations without compromising safety.

Helicopter services are responsible for transferring the majority of the workforce to and from offshore installations in an open-sea environment that is challenging and hazardous. Unsafe circumstances can be caused by wind-induced turbulence, which has been ranked by pilots as the greatest of 15 factors contributing to workload and safety hazards.

Helideck turbulence impairment provides valuable information during design and operation phases and aids pilots at predicting high-risk flight conditions and engineers at anticipating the amount of time helicopter transportation may be unavailable for use.

KCA Deutag
To Support BP

KCA Deutag was awarded two contracts with BP Exploration (Caspian Sea) Ltd.

The first contract was awarded to the offshore division and is for the operations and maintenance of seven platforms operated by BP in the Caspian Sea. The second contract was awarded to RDS, KCA Deutag’s engineering and design specialist, for engineering support services on all drilling packages for projects in the Caspian Sea that are operated by BP from Azerbaijan, Georgia and Turkey.

BSEE Oil Spill
Response Exercises

Analysts and engineers from the Bureau of Safety and Environmental Enforcement’s (BSEE) Oil Spill Preparedness Division recently conducted oil spill response efforts in the Gulf of Mexico Region. The team evaluated two separate spill response operations training exercises for Freeport McMoran Oil & Gas and Chevron at ports near the Gulf of Mexico and the Mississippi River.

The exercise with Chevron was conducted in Fort Jackson, Louisiana, aboard a responder vessel that is specified in the operator’s oil spill response plan. During the training exercise, the vessel deployed specialized equipment to test boom.

An earlier exercise was conducted in Grand Isle, Louisiana, aboard a responder vessel contracted by Freeport McMoran Oil & Gas. BSEE analysts evaluated a spill response operating team deploying equipment in the correct configuration. The exercise also included the training of the subcontractors that would be assisting National Response Corp. with the deployment of the equipment. Both trainings were successful.

BSEE staff also conducted an unannounced spill exercise of Black Elk Energy Offshore. During the one-day exercise the BSEE team worked from Houma, Louisiana, initiating a simulated scenario while Black Elk Energy representatives coordinated response efforts from its offices in Houston. The U.S. Coast Guard and Louisiana Oil Spill Office observed the exercise at the Houma facility.


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