Kulluk
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''Kulluk'' was an ice-strengthened drill barge that was used for oil exploration in the Arctic waters. She was constructed by
Mitsui Engineering & Shipbuilding () is a Japanese company. It is listed on the Nikkei 225. Mitsui E&S is one of the companies of the Mitsui Group. Established in 1917 as the Shipbuilding Division of Mitsui & Co. with the first shipyard at Tamano. In 1937 the shipyards became ...
in
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
in 1983 and operated in the Canadian Arctic until 1993 when she was mothballed for over a decade. In 2005, she was purchased and extensively refurbished by
Royal Dutch Shell Shell plc is a British multinational oil and gas company headquartered in London, England. Shell is a public limited company with a primary listing on the London Stock Exchange (LSE) and secondary listings on Euronext Amsterdam and the New Yo ...
for drilling off the
Alaska North Slope The Alaska North Slope ( Iñupiaq: ''Siḷaliñiq'') is the region of the U.S. state of Alaska located on the northern slope of the Brooks Range along the coast of two marginal seas of the Arctic Ocean, the Chukchi Sea being on the western sid ...
. On 31 December 2012, ''Kulluk'' drifted aground after the towing line to the icebreaking
anchor handling tug supply vessel Anchor Handling Tug Supply (AHTS) vessels are mainly built to handle anchors for oil rigs, tow them to location, and use them to secure the rigs in place. AHTS vessels sometimes also serve as Emergency Response and Rescue Vessels (ERRVs) and a ...
''
Aiviq ''Aiviq'' is an American icebreaker, icebreaking anchor handling tug supply vessel (AHTS) owned by Edison Chouest Offshore (ECO). The $200 million vessel was built in 2012 by North American Shipbuilding in Larose, Louisiana and LaShip in Houma, L ...
'' parted in heavy weather. While the rig was recovered, it was irreparable and was scrapped in March 2014.


Career

From 1983 to 1993, the rig was operated by
Gulf Canada Resources Gulf Canada was a Canadian integrated petroleum company that existed between 1944 and 2001. Gulf Oil, Gulf Oil Corporation began operating in Canada in 1942, and two years later formed a Canadian subsidiary called the Canadian Gulf Oil Company. In ...
in
Northern Canada Northern Canada, colloquially the North or the Territories, is the vast northernmost region of Canada variously defined by geography and politics. Politically, the term refers to the three Provinces_and_territories_of_Canada#Territories, territor ...
. She was mothballed in 1993, and in 2005 she was acquired by Royal Dutch Shell and underwent intensive refurbishment. In January 2006, Shell awarded a contract to manage and operate ''Kulluk'' to Frontier Drilling (now part of
Noble Corporation Noble Corporation plc is an offshore drilling contractor organized in London, United Kingdom. Its affiliate, Noble Corporation, is organized in the Cayman Islands. It is the corporate successor of Noble Drilling Corporation. The company operate ...
).


2012 grounding

On 31 December 2012, ''Kulluk'' drifted aground off
Sitkalidak Island Sitkalidak Island (russian: Ситкалидак) is an island in the western Gulf of Alaska in the Kodiak Island Borough of the state of Alaska, United States. It lies just off the southeast shore of Kodiak Island, across the Sitkalidak Strait fro ...
in the
Gulf of Alaska The Gulf of Alaska (Tlingit: ''Yéil T'ooch’'') is an arm of the Pacific Ocean defined by the curve of the southern coast of Alaska, stretching from the Alaska Peninsula and Kodiak Island in the west to the Alexander Archipelago in the east, ...
. Up until October the rig had been working in the
Beaufort Sea The Beaufort Sea (; french: Mer de Beaufort, Iñupiaq: ''Taġiuq'') is a marginal sea of the Arctic Ocean, located north of the Northwest Territories, the Yukon, and Alaska, and west of Canada's Arctic islands. The sea is named after Sir Fr ...
, off the
Alaska North Slope The Alaska North Slope ( Iñupiaq: ''Siḷaliñiq'') is the region of the U.S. state of Alaska located on the northern slope of the Brooks Range along the coast of two marginal seas of the Arctic Ocean, the Chukchi Sea being on the western sid ...
. She was being towed to her winter home in
Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...
when she encountered a storm, and the incident occurred. The
United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, mult ...
evacuated her 18-man crew on 29 December. On
New Year's Eve In the Gregorian calendar, New Year's Eve, also known as Old Year's Day or Saint Sylvester's Day in many countries, is the evening or the entire day of the last day of the year, on 31 December. The last day of the year is commonly referred to ...
, tug crews were ordered by the
United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, mult ...
to cut the rig loose, leading to her grounding. ''Kulluks movement south for the winter was at least in part motivated by an effort to avoid State of Alaska property taxes on oil and gas extraction equipment. The tax in question is a state property tax of 20
mills Mills is the plural form of mill, but may also refer to: As a name *Mills (surname), a common family name of English or Gaelic origin * Mills (given name) *Mills, a fictional British secret agent in a trilogy by writer Manning O'Brine Places Unit ...
(or 2%) "on property used or committed by contract or other agreement for use for the pipeline transportation of gas or unrefined oil or for the production of gas or unrefined oil at its full and true value as of January 1 of the assessment year." The tax liability for the rig was estimated at $6–7 million, based on the value of the rig. ''Kulluk'' was carrying of
ultra-low-sulfur diesel Ultra-low-sulfur diesel (ULSD) is diesel fuel with substantially lowered sulfur content. Since 2006, almost all of the petroleum-based diesel fuel available in Europe and North America has been of a ULSD type. The move to lower sulfur content allo ...
fuel, of
aviation fuel Aviation fuels are petroleum-based fuels, or petroleum and synthetic fuel blends, used to power aircraft. They have more stringent requirements than fuels used for ground use, such as heating and road transport, and contain additives to enhanc ...
and of lubricants. On January 6, 2013, ''Kulluk'' was floated from the rocks. Satisfied the vessel was seaworthy, she was towed to shelter in nearby
Kodiak Island Kodiak Island (Alutiiq: ''Qikertaq''), is a large island on the south coast of the U.S. state of Alaska, separated from the Alaska mainland by the Shelikof Strait. The largest island in the Kodiak Archipelago, Kodiak Island is the second larges ...
's Kiliuda Bay. After further assessment of damage, ''Kulluk'' was towed to Captains Bay,
Unalaska, Alaska Unalaska ( ale, Iluulux̂; russian: Уналашка) is the chief center of population in the Aleutian Islands. The city is in the Aleutians West Census Area, a regional component of the Unorganized Borough in the U.S. state of Alaska. Unalaska ...
, where she was loaded on the
heavy lift ship A heavy-lift ship is a vessel designed to move very large loads that cannot be handled by normal ships. They are of two types: *''Semi-submersible'' ships that take on water ballast to allow the load—usually another vessel—to be floated o ...
''Xiang Rui Kou''. She departed for
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...
for repair and updates in late March 2013. In October 2013, Shell said that the Kulluk would be scrapped. Until February 2014, she remained at Keppel FELS Pioneer Yard shipyard in Singapore. In March 2014, ''Xiang Rui Kou'' towed Kulluk to a Chinese scrap yard. In April 2014, the
United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, mult ...
report said that the incident was due to Shell's "inadequate assessment and management of risks" in icy, storm-tossed waters. In December 2014,
Noble Corporation Noble Corporation plc is an offshore drilling contractor organized in London, United Kingdom. Its affiliate, Noble Corporation, is organized in the Cayman Islands. It is the corporate successor of Noble Drilling Corporation. The company operate ...
agreed to pay $12.2 million in fines for knowingly making false entries and failing to record its collection, transfer, storage, and disposal of oil in the Noble Discoverer's and the Kulluk's oil record books in 2012. In May 2015, a report by the
National Transportation Safety Board The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incid ...
blamed "Shell’s inadequate assessment of the risk for its planned tow" for the accident.


Design

''Kulluk'' was strengthened against ice with thick, reinforced steel, and a funnel-shaped
double hull A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some dis ...
with flared sides enabling her to operate in Arctic waters as moving ice was deflected downwards and was broken into pieces. The vessel was moored with a twelve-point anchor system. Her rated water depth for operations was . Her drilling depth was . Originally, ''Kulluk'' had no propulsion and had to be towed to location. In 2006, Shell contracted
Aker Arctic Aker Arctic Technology Oy (often shortened to Aker Arctic) is a Finnish engineering company that operates an ice model test basin in Helsinki. In addition to ship model testing, the company offers various design, engineering and consulting serv ...
to evaluate the feasibility of adding a thruster-aided propulsion to the drilling barge. In 2007, ''Kulluk'' was fitted with two 62-tonne, ThrustMaster hydraulic overboard
azimuth thrusters An azimuth thruster is a configuration of marine propellers placed in pods that can be rotated to any horizontal angle (azimuth), making a rudder unnecessary. These give ships better maneuverability than a fixed propeller and rudder system. T ...
, the largest ever supplied by the company, to provide the platform an ability to move between drill sites and improve her operability in ice. However, before the system was completely installed, the project was delayed and subsequently halted due to regulatory and operational changes. In 2011, the thrusters were removed and sold while ''Kulluk'' was on the shipyard, turning ''Kulluk'' into an unpropelled drilling barge again.


References


External links


Grounding of the Shell Kulluk oil rig off Kodiak Island, Alaska
on the CIMSS Satellite Blog *McKenzie Funk

''New York Times'' Magazine, December 30, 2014 {{2012 shipwrecks 1983 ships Drillships Shell plc buildings and structures Oil platform disasters Maritime incidents in 2012 Ships built by Mitsui Engineering and Shipbuilding