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Baldpate (oil platform)

From Wikipedia, the free encyclopedia

Baldpate is a 579.7 metres (1,902 ft)[1] offshore compliant tower oil platform near the coast of Louisiana, owned and operated by Hess Corporation. It was the first freestanding compliant tower to be built following the Lena platform which was a guyed compliant tower. It is the second tallest structure built in water after the Petronius (oil platform). The Baldpate Platform was designed and built by Hudson Engineering (now J. Ray McDermott Engineering) in Houston, Texas, and installed by Heerema Marine Contractors.

Compliant towers are designed to be more flexible than traditional fixed truss towers such as the Bullwinkle (oil platform). Baldpate in particular is designed to move up to 10 feet laterally during severe storm conditions.

The complaint tower section jacket section was fabricated by Aker Gulf Marine, weights a total of 28,900[2] tons, far below the original estimate of 50,000 tones. The platform was built in multiple sections which were assembled together later when the structure arrived at its final location. The lower 107 m (351 ft) tall base section weights 8,700 tons, this section has a wider base 140 feet squared that reduces to 90 feet squared at its top. The main legs of the structure have a diameter of 12 feet at their widest with a steel thickness of 3.5 inches. At the corner of each side the structure is supported by steel piles which reach a depth of 430 feet. The upper 402 m (1320 ft) tall tower section weights 20,200 tons.[3] This section has a length and width of 90 feet across which remains constant from the bottom to the top of the frame. The main legs in this section have a diameter of 10.67 feet with a steel thickness of 3.3 inches. The total combined height of the jacket/truss tower section of Baldpate is 1,671 feet, 1,647 feet of which is under water.[4] The topside weights an additional 9,800 tons giving the structure a total weight of 38,700 tons.[5]

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Transcription

See also

References

  1. ^ "Amerada Hess oil and gas field project". Offshore Technology. Archived from the original on 21 September 2020. Retrieved 10 August 2020.
  2. ^ "Compliant Tower - an overview | ScienceDirect Topics". Archived from the original on 2021-04-17. Retrieved 2021-04-17.
  3. ^ "StackPath". July 1999. Archived from the original on 2021-04-17. Retrieved 2021-04-17.
  4. ^ GULF OF MEXICO DEEP WATER DECOMMISSIONING STUDY - REVIEW OF THE STATE OF THE ART FOR REMOVAL OF GOM US OCS OIL & GAS FACILITIES IN GREATER THAN 400' WATER DEPTH M09PC00004 - Final Report Archived 2019-08-29 at the Wayback Machine
  5. ^ "StackPath". July 1999. Archived from the original on 2021-04-17. Retrieved 2021-04-17.

External links


This page was last edited on 25 February 2024, at 06:48
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