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Liftboat

January 29, 2023

A liftboat is a self-propelled, self-elevating vessel used in support of various offshore mineral exploration and production or offshore construction activities. A liftboat has a relatively large open deck to accommodate equipment and supplies, and the capability of raising its hull clear of the water on its own legs so as to provide a stable platform from which maintenance and construction work may be conducted.

LB Myrtle shown partially jacked in the Gulf of Mexico

For liftboats registered to the United States, structures and machinery are covered under Title 46 of the Code of Federal Regulations.[1] Liftboats are usually outfitted with at least one crane; marine cranes are usually designed to API specification 2C or the equivalent classification society guidelines.

Liftboats are commonly used to perform maintenance on oil and gas well platforms. The liftboat usually moves on location on a side of the platform where no obstructions or pipelines are observed, lowers its legs and jacks up out of the water. Because the pads of the liftboat are sitting on a muddy, unstable seafloor, most liftboats practice a safety measure called a preload, where the boat jacks-up the absolute minimum to clear hull from the tips of the significant wave heights,[2] fills its holds with water for weight and allows the boat to settle in the mud for several hours before dumping the water and jacking up to work height.

If the mud of the seafloor gives way under the liftboat, it can fall into the water and put the lives of the crew in danger. A complete site survey prior to moving on location is an important safety measure to ensure that all seafloor features (including canholes, which are the depressions left by the legs of drilling rigs or liftboats, and also pipelines) are known before choosing a final location.

History

The first liftboat was designed in 1955 by brothers Lynn and Orin Dean in Violet, Louisiana. In the 1950s the Dean brothers owned a repair service for automobiles, marine, and farm equipment called Universal Repair Service, which is now known as EBI, Elevating Boats LLC. As of 2018, the company operates 30 liftboats that service the shallow water oil and gas industry in the Gulf of Mexico from their liftboat dock in Houma, Louisiana.[3]

Examples

L/B Robert

Montco Offshore's MiNO Marine, LLC–designed L/B Robert has a working water depth of 270 feet (82 m), 15,400 square feet (1,430 m2) of deck area and a 500-ton crane. The legs are 335 feet long (102 m) and it has a main crane and three auxiliary cranes. The vessel uses electro-hydraulic jacking systems, and the cranes are all driven from the segregated machinery spaces.[4]

ORCA series of self-elevating platforms

The ORCA series of self-propelled, self-elevating platforms was designed by Bennett Offshore working in collaboration with the Offshore Technology Development group of Keppel Offshore & Marine. These SEPs range in size from small platforms designed for the Gulf of Mexico to large units up to 115 m in length, capable of installing offshore wind turbines and foundations exceeding 800 tonnes. ORCA platforms can be configured for construction support, light drilling, well intervention, well plug and abandonment, coiled tubing operations, wind farm installation, gas compression and accommodation.[5] The first ORCA 2500, customized for the Middle East and North Africa, was delivered to a Qatari rig operator in February 2016.[6] An ORCA 3500 is currently under construction by Keppel FELS for delivery in Q4 2017.[7]

SUDA 450-L3T

The naval architecture firm A. K. Suda, Ltd. designed a 450-foot (137.25m) truss-legged liftboat for Teras Offshore. When delivered in 2014, it was the world's largest liftboat. The molded steel hull dimensions are 60m x 54m x 6m, and it is capable of working in water depths up to 367 feet. It has two deck cranes, one leg encircling around the starboard jackcase, and the other a pedestal crane on the port side of the vessel. Its quarters can accommodate 250 people including crew. It was built by Triyards Marine, Saigon Shipyard in Vietnam.[8]

Accidents

Ram XVIII

On November 18, 2018, the Ram XVIII overturned at a location in the Gulf of Mexico about 15 miles (24 km) south-southeast of Grand Isle, Louisiana. Five crew members and 10 offshore workers abandoned ship and were rescued. Three personnel suffered minor injuries, and the accident released an estimated 1000 gallons of hydraulic oil into the Gulf waters. The boat was declared a total loss at an estimated cost of $1.14 million.

The Ram XVIII was a 215-foot liftboat, built in 2015 and owned by Aries Marine Corporation in Lafayette, Louisiana. The National Transportation Safety Board (NTSB) determined that the probable cause of the accident was an industry failure of not providing liftboat operators with enough information about composition of the seafloor. The port leg of the liftboat became unstable, leading to collapse, but it remains unclear whether the sea floor washed away, the leg settled quickly in a "punch-through", or the edge of the nearest canhole collapsed.[9]

Kristin Faye

On September 8, 2019, the Kristin Faye liftboat overturned while servicing an oil platform in the Gulf of Mexico about 18 miles (29 km) east of Venice, Louisiana. The vessel was outfitted with two telescoping boom cranes on its bow. One large-capacity crane was mounted to port and another sat on a pedestal to starboard. The liftboat began listing to port and capsized in about 35 feet of water after workers extended one of the cranes. NTSB report blamed the accident on inadequate preload procedures that failed to account for shifting and loading the crane.

Three crew members were evacuated and one was slightly injured during evacuation. The accident released about 120 gallons of diesel fuel into the Gulf water. The vessel was declared a total loss at a cost of $750,000.[10] Salvage divers reported that the port leg of the liftboat had penetrated about 40 feet (12m) into the sea floor in a punch through.[11]

Seacor Power

Main article: Seacor Power

On April 13, 2021, the US Coast Guard responded to notifications of a distressed 234-foot (71.3m) commercial lift vessel 8 miles (13 km) south of Port Fourchon, Louisiana, and along with good Samaritan vessels, began rescue operations. The owner identified the liftboat as Seacor Power, belonging to the firm Seacor Marine, and under hire at the time of the accident by the oil and gas company Talos Energy to transport equipment to their oil platform.[12]

The ship was about 7 miles (11 km) into a voyage from Port Fourchon to an oil platform on the other side of Louisiana's Mississippi River delta. It was operated by Seacor crew members and had 9 service hands on board. The vessel capsized after an unnamed category 1 hurricane raised 70 to 80 mph (110 to 130 km/h) winds and rough seas. Six crew members were rescued on the same day from the water. Captain David Ledet, age 63, of Thibodaux, had remained in the wheelhouse calling "mayday" even though the vessel was in trouble; he stayed at his post and continued seeking help for his crew, and was later found deceased.[13] On April 16, the body of a second crew member was recovered 33 miles (53 km) from the capsized boat, leaving 11 people still missing.[14]

Nomenclature

Liftboats go by several names in the marine industry, such as:

  • Liftboat – used by United States Coast Guard (USCG) & American Bureau of Shipping (ABS)
  • MOU (Mobile Offshore Unit) – used by Lloyds Register; but also incorporates other types of vessel like Drill Ships and Semi-Submersible drilling rigs that might not necessarily be Self-Propelled
  • SESV (Self-Elevating Support Vessel) – used by owner/operator GMS
  • MPSEP (Multi-Purpose Self-Elevating Platform) – used by owner/operator Seafox & shipyard Keppel
  • SEWOP (Self-Elevating Work-Over Platform) – used by owner/operator Halliburton & oil company Chevron
  • SEP (Self-Elevating Platform) – used by Naval Architect GustoMSC and Bennett Offshore
  • Jack-Up Barge – used in the Gulf-of-Mexico prior to USCG regulation as a marine vessel
  • Jack-Up - used by UK Renewable (ex. BWEA) but are not necessarily self-propelled
  • Wind-Farm Installation Vessel – used generally in the renewables industry but are not necessarily self-propelled
  • SEAPUP (Self Elevating And Propulsion Utility Platform) - used by ARCO, BP and Pertamina, at West Java Sea.

References

  1. ^ 46CFR90.10-20
  2. ^ Hercules Offshore Nigeria Limited; ISM Marine Circular 63 Rev. 2 ; HONL 100.02 Rev 45a - Jacking and Maneuvering
  3. ^ "The Pioneers of Liftboats". www.ebi-inc.com. Elevating Boats LLC. Retrieved October 23, 2018.
  4. ^ . Montco, Inc. Archived from the original on December 31, 2014.
  5. ^ Bennett Offshore self-elevating platforms. April 10, 2016, at the Wayback Machine
  6. ^ "N-KOM delivers first liftboat in Qatar". Keppel Corporation Limited. February 15, 2016. Retrieved October 23, 2018.
  7. ^ "Keppel secures second liftboat order at US$85 million". www.kepcorp.com. Keppel Corporation Limited. July 13, 2015. Retrieved October 23, 2018.
  8. ^ "Suda completes world's largest liftboat, based on SUDA 450-L3T model". Offshore magazine. May 29, 2014. Retrieved April 14, 2021.
  9. ^ "NTSB releases report on 2018 Gulf liftboat accident". Workboat.com. November 12, 2019. Retrieved April 14, 2021.
  10. ^ "NTSB: Offshore Louisiana $750K Liftboat Loss Caused by Faulty Preload Procedure". Insurance Journal. 20 November 2020. Retrieved 15 April 2021.
  11. ^ "Overturning of the Liftboat Kristin Faye" (PDF). NTSB. 4 November 2020. Retrieved 15 April 2021.
  12. ^ "Coast Guard, good Samaritans rescue 6 people from capsized vessel 8 miles south of Port Fourchon, searching for more". US Coast Guard. April 14, 2021. Retrieved April 14, 2021.
  13. ^ Vincent, Mykal (April 15, 2021). "Captain of Seacor Power identified as body recovered by Coast Guard". WAFB 9. Retrieved April 16, 2021.
  14. ^ "Second body recovered 33 miles from Seacor Power site; divers yet to get inside vessel". WVUE. 16 April 2021. Retrieved 16 April 2021.

January 29, 2023
liftboat, liftboat, self, propelled, self, elevating, vessel, used, support, various, offshore, mineral, exploration, production, offshore, construction, activities, liftboat, relatively, large, open, deck, accommodate, equipment, supplies, capability, raising. A liftboat is a self propelled self elevating vessel used in support of various offshore mineral exploration and production or offshore construction activities A liftboat has a relatively large open deck to accommodate equipment and supplies and the capability of raising its hull clear of the water on its own legs so as to provide a stable platform from which maintenance and construction work may be conducted LB Myrtle shown partially jacked in the Gulf of Mexico For liftboats registered to the United States structures and machinery are covered under Title 46 of the Code of Federal Regulations 1 Liftboats are usually outfitted with at least one crane marine cranes are usually designed to API specification 2C or the equivalent classification society guidelines Liftboats are commonly used to perform maintenance on oil and gas well platforms The liftboat usually moves on location on a side of the platform where no obstructions or pipelines are observed lowers its legs and jacks up out of the water Because the pads of the liftboat are sitting on a muddy unstable seafloor most liftboats practice a safety measure called a preload where the boat jacks up the absolute minimum to clear hull from the tips of the significant wave heights 2 fills its holds with water for weight and allows the boat to settle in the mud for several hours before dumping the water and jacking up to work height If the mud of the seafloor gives way under the liftboat it can fall into the water and put the lives of the crew in danger A complete site survey prior to moving on location is an important safety measure to ensure that all seafloor features including canholes which are the depressions left by the legs of drilling rigs or liftboats and also pipelines are known before choosing a final location Contents 1 History 2 Examples 2 1 L B Robert 2 2 ORCA series of self elevating platforms 2 3 SUDA 450 L3T 3 Accidents 3 1 Ram XVIII 3 2 Kristin Faye 3 3 Seacor Power 4 Nomenclature 5 ReferencesHistory EditThe first liftboat was designed in 1955 by brothers Lynn and Orin Dean in Violet Louisiana In the 1950s the Dean brothers owned a repair service for automobiles marine and farm equipment called Universal Repair Service which is now known as EBI Elevating Boats LLC As of 2018 update the company operates 30 liftboats that service the shallow water oil and gas industry in the Gulf of Mexico from their liftboat dock in Houma Louisiana 3 Examples EditL B Robert Edit Montco Offshore s MiNO Marine LLC designed L B Robert has a working water depth of 270 feet 82 m 15 400 square feet 1 430 m2 of deck area and a 500 ton crane The legs are 335 feet long 102 m and it has a main crane and three auxiliary cranes The vessel uses electro hydraulic jacking systems and the cranes are all driven from the segregated machinery spaces 4 ORCA series of self elevating platforms Edit The ORCA series of self propelled self elevating platforms was designed by Bennett Offshore working in collaboration with the Offshore Technology Development group of Keppel Offshore amp Marine These SEPs range in size from small platforms designed for the Gulf of Mexico to large units up to 115 m in length capable of installing offshore wind turbines and foundations exceeding 800 tonnes ORCA platforms can be configured for construction support light drilling well intervention well plug and abandonment coiled tubing operations wind farm installation gas compression and accommodation 5 The first ORCA 2500 customized for the Middle East and North Africa was delivered to a Qatari rig operator in February 2016 6 An ORCA 3500 is currently under construction by Keppel FELS for delivery in Q4 2017 7 SUDA 450 L3T Edit The naval architecture firm A K Suda Ltd designed a 450 foot 137 25m truss legged liftboat for Teras Offshore When delivered in 2014 it was the world s largest liftboat The molded steel hull dimensions are 60m x 54m x 6m and it is capable of working in water depths up to 367 feet It has two deck cranes one leg encircling around the starboard jackcase and the other a pedestal crane on the port side of the vessel Its quarters can accommodate 250 people including crew It was built by Triyards Marine Saigon Shipyard in Vietnam 8 Accidents EditRam XVIII Edit On November 18 2018 the Ram XVIII overturned at a location in the Gulf of Mexico about 15 miles 24 km south southeast of Grand Isle Louisiana Five crew members and 10 offshore workers abandoned ship and were rescued Three personnel suffered minor injuries and the accident released an estimated 1000 gallons of hydraulic oil into the Gulf waters The boat was declared a total loss at an estimated cost of 1 14 million The Ram XVIII was a 215 foot liftboat built in 2015 and owned by Aries Marine Corporation in Lafayette Louisiana The National Transportation Safety Board NTSB determined that the probable cause of the accident was an industry failure of not providing liftboat operators with enough information about composition of the seafloor The port leg of the liftboat became unstable leading to collapse but it remains unclear whether the sea floor washed away the leg settled quickly in a punch through or the edge of the nearest canhole collapsed 9 Kristin Faye Edit On September 8 2019 the Kristin Faye liftboat overturned while servicing an oil platform in the Gulf of Mexico about 18 miles 29 km east of Venice Louisiana The vessel was outfitted with two telescoping boom cranes on its bow One large capacity crane was mounted to port and another sat on a pedestal to starboard The liftboat began listing to port and capsized in about 35 feet of water after workers extended one of the cranes NTSB report blamed the accident on inadequate preload procedures that failed to account for shifting and loading the crane Three crew members were evacuated and one was slightly injured during evacuation The accident released about 120 gallons of diesel fuel into the Gulf water The vessel was declared a total loss at a cost of 750 000 10 Salvage divers reported that the port leg of the liftboat had penetrated about 40 feet 12m into the sea floor in a punch through 11 Seacor Power Edit Main article Seacor Power On April 13 2021 the US Coast Guard responded to notifications of a distressed 234 foot 71 3m commercial lift vessel 8 miles 13 km south of Port Fourchon Louisiana and along with good Samaritan vessels began rescue operations The owner identified the liftboat as Seacor Power belonging to the firm Seacor Marine and under hire at the time of the accident by the oil and gas company Talos Energy to transport equipment to their oil platform 12 The ship was about 7 miles 11 km into a voyage from Port Fourchon to an oil platform on the other side of Louisiana s Mississippi River delta It was operated by Seacor crew members and had 9 service hands on board The vessel capsized after an unnamed category 1 hurricane raised 70 to 80 mph 110 to 130 km h winds and rough seas Six crew members were rescued on the same day from the water Captain David Ledet age 63 of Thibodaux had remained in the wheelhouse calling mayday even though the vessel was in trouble he stayed at his post and continued seeking help for his crew and was later found deceased 13 On April 16 the body of a second crew member was recovered 33 miles 53 km from the capsized boat leaving 11 people still missing 14 Nomenclature EditLiftboats go by several names in the marine industry such as Liftboat used by United States Coast Guard USCG amp American Bureau of Shipping ABS MOU Mobile Offshore Unit used by Lloyds Register but also incorporates other types of vessel like Drill Ships and Semi Submersible drilling rigs that might not necessarily be Self Propelled SESV Self Elevating Support Vessel used by owner operator GMS MPSEP Multi Purpose Self Elevating Platform used by owner operator Seafox amp shipyard Keppel SEWOP Self Elevating Work Over Platform used by owner operator Halliburton amp oil company Chevron SEP Self Elevating Platform used by Naval Architect GustoMSC and Bennett Offshore Jack Up Barge used in the Gulf of Mexico prior to USCG regulation as a marine vessel Jack Up used by UK Renewable ex BWEA but are not necessarily self propelled Wind Farm Installation Vessel used generally in the renewables industry but are not necessarily self propelled SEAPUP Self Elevating And Propulsion Utility Platform used by ARCO BP and Pertamina at West Java Sea References Edit 46CFR90 10 20 Hercules Offshore Nigeria Limited ISM Marine Circular 63 Rev 2 HONL 100 02 Rev 45a Jacking and Maneuvering The Pioneers of Liftboats www ebi inc com Elevating Boats LLC Retrieved October 23 2018 Offshore Liftboats Montco Inc Archived from the original on December 31 2014 Bennett Offshore self elevating platforms Archived April 10 2016 at the Wayback Machine N KOM delivers first liftboat in Qatar Keppel Corporation Limited February 15 2016 Retrieved October 23 2018 Keppel secures second liftboat order at US 85 million www kepcorp com Keppel Corporation Limited July 13 2015 Retrieved October 23 2018 Suda completes world s largest liftboat based on SUDA 450 L3T model Offshore magazine May 29 2014 Retrieved April 14 2021 NTSB releases report on 2018 Gulf liftboat accident Workboat com November 12 2019 Retrieved April 14 2021 NTSB Offshore Louisiana 750K Liftboat Loss Caused by Faulty Preload Procedure Insurance Journal 20 November 2020 Retrieved 15 April 2021 Overturning of the Liftboat Kristin Faye PDF NTSB 4 November 2020 Retrieved 15 April 2021 Coast Guard good Samaritans rescue 6 people from capsized vessel 8 miles south of Port Fourchon searching for more US Coast Guard April 14 2021 Retrieved April 14 2021 Vincent Mykal April 15 2021 Captain of Seacor Power identified as body recovered by Coast Guard WAFB 9 Retrieved April 16 2021 Second body recovered 33 miles from Seacor Power site divers yet to get inside vessel WVUE 16 April 2021 Retrieved 16 April 2021 Retrieved from https en wikipedia org w index php title Liftboat amp oldid 1123178637, wikipedia, wiki, book, books, library,

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