Stranded GOM Drill Barge Refloated

press release
Wednesday, July 25, 2012
ISI Salvage Operations.

Inland Salvage Inc. Successfully Refloats Stranded Drill Barge from the Caillou Island Oilfield in the Gulf of Mexico.
 

Inland Salvage Inc. (ISI) recently demonstrated its diversified capabilities with the offshore deployment ISI salvage and emergency response equipment and personnel in the successful fuel removal, partial dismantlement and refloat of a stranded 2,500 ton posted drill barge. The drill barge suffered side shell damage and loss of watertight integrity due to contact with a support barge in rough seas. As a result, she was unable to discharge ballast and refloat after completing work-over operations in Caillou Island Field, Timbalier Bay, Louisiana.  The drill barge's location in a corridor between barrier islands exposed the site to periodic heavy seas and swells.

The barge's Owner called upon third-party divers initially but were unable to make the required repairs, and advised the Owners to seek professional salvage assistance.  ISI was immediately contracted and salvage crews and equipment were dispatched to the site within 24 hours.
 

The arrival of tropical storm Debby, with deteriorating sea conditions, required that refloat efforts be put on hold and immediate actions be taken to prevent further damage to the vessel during the storm.  Side shell shoring was achieved by way of vertical toggles along the damaged exterior section of the hull.  The side shell toggles arrested the breathing of shell plating (moving in and out with oncoming seas) and stopped the spread of damage into other compartments.  Then steel plates were installed over longitudinal splits in the side shell and bolted into position. The steel plate and bolting arrangement stiffened damaged side shell sections to resist the working of interior framing. All emergency salvage repairs were in place and ISI was able to evacuate crews before onslaught of the storm.
 

The underwater efforts on the part of ISI salvage divers using underwater burning, underwater welding, and patch installation was heavily backed up and supported by a topside crew of welding and fabrication personnel. These topside personnel insured diver requested prefabbed components would be ready to hit the water as needed.
 

With the passing of the storm, the salvage crews returned and found the emergency response salvage repairs intact and had effectively prevented the spread of hull damage.   ISI conducted thorough pipeline and side scan surveys of the surrounding area of the casualty.  The surveys revealed live pipelines passed under the barge leading to surrounding wellheads.   Extensive surveys of surrounding pipelines strongly reduced the ability of anchoring or spud type mooring systems and restricted the use of ISI's heavy lift salvage barges. ISI opted to mobilize a 175 series lift boat with a 115 ton crane to the site to use as a work platform.
 

ISI's on-site Salvage Master, Mr. Peter Drummond, working closely with ISI Project Management and Argonautics Marine Engineering, developed a modified plan involving the removal of 170 tons of drill equipment and drill floor structure along with the discharge of 375 tons of liquid ballast and cargo. A specialty team of shipbreakers was mobilized to assist divers and crew in removal of topside structure.  Airlifting removal of residual mud build up in hull was restricted to damaged area. The remaining mud would provide ballast without the complications associated with free surface water. All participants were aware of the limited window of opportunity and the consequences if a storm caught the barge partially afloat in the narrow confines of the pipeline and wellhead field. All structure removal work was complete and permission was received to proceed with the modified refloat plan.
 

Within 18 hours of the notice to proceed, the vessel was refloated, moved away from wellhead, stabilized, and was ready to begin its journey to the shipyard for repairs. Towing vessels and crews, familiar with the area, skillfully maneuvered the rig's hull through the very confined and shallow field. The towing company's captains kept in constant radio contact with the salvage master, providing updates to the salvage crew on tow conditions. The cooperation between the towboats and the Salvage Master enabled the underway movement of ballast and pumping to reflect the stability adjustments as the tow progressed.  ISI worked closely with the USCG / MSU Houma during the evolution and provided real-time updates from beginning to end.
 

Maritime Reporter November 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Madsen to Chair Norway’s Research Council Executive Board

Henrik O. Madsen appointed chairman of the executive board of the Research Council of Norway   DNV GL president and CEO Henrik O. Madsen was appointed as chairman

Port of Houston Expecting Record Year

The Port of Houston Authority is expecting 2014 to close as a banner year for the port, with 34 million tons of cargo handled through November, Executive Director

Hapag-Lloyd Completes CSAV Merger Capital Increase

Hapag-Lloyd completed the planned capital increase of EUR 370 million (approximately $452.5 million) as part of the business combination with the Chilean shipping

Energy

Security Threat in Yemen Shuts CNOOC's Nexen Facility

CNOOC Ltd's Nexen unit is shutting operations at an oil field and processing facility in Yemen due to a security threat, a Nexen spokeswoman said on Sunday.   The

Liquefaction Terminals to Dominate LNG Capital Expenditure

Capital expenditure (Capex) on global LNG facilities is expected to total $259 billion (bn) over the period 2015-2019, with investments expected to be 88% larger

Polarcus Awarded 3D Project Off West Africa

Polarcus Limited has signed a letter of intent with Perenco Oil & Gas Gabon S.A. for a 3D marine seismic acquisition project offshore West Africa.   The project,

Salvage

NZ Report: Human Error to Blame for Rena Grounding

New Zealand's Transport Accident Investigation Commission (TAIC) published its final report into the grounding of containership Rena in October 2011. The TAIC’s

Workboats: Communications is Key Operational Tech

As we close out yet another year, I am constantly amazed at how much things change on the waterfront and the boats that ply the adjacent waters. Similarly, I like

Report: Dire Conditions in Indian Shipbreaking Yards

Report by Indian research institute reveals poor enforcement of occupational health and safety provisions   The working and living conditions at the shipbreaking yards of Alang,

Casualties

NZ Report: Human Error to Blame for Rena Grounding

New Zealand's Transport Accident Investigation Commission (TAIC) published its final report into the grounding of containership Rena in October 2011. The TAIC’s

Report: Dire Conditions in Indian Shipbreaking Yards

Report by Indian research institute reveals poor enforcement of occupational health and safety provisions   The working and living conditions at the shipbreaking yards of Alang,

Wrecked Bulker’s Bow Refloated, Scuttled off S.Africa

TITAN Salvage, Crowley Maritime Corp.'s Houston-based marine salvage, emergency response and wreck removal company, has refloated and scuttled the largest section of the wrecked bulk carrier, Smart.

Coast Guard

USCG on Cuba Policy Changes

The U.S. Coast Guard missions and operations in the Southeast remain unchanged. The Coast Guard strongly discourages attempts to illegally enter the country by taking to the sea.

USCG Says Unaffected by Cuba Policy Changes

The U.S. Coast Guard (USCG) issued a statement today stating that the United States’ Cuba policy change will not impact its missions annd operations. “Coast Guard

Italian Shipbuilder Pleads Guilty to Environmental Crimes

An Italian shipping firm based in Genoa, Italy, pleaded guilty to violating the Act to Prevent Pollution from Ships by falsifying required ships’ documents to hide

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Salvage Ship Electronics Ship Repair Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2441 sec (4 req/sec)