Hydraulic and earth engineering – Earth treatment or control – Impermeabilization
Patent
1984-04-24
1985-11-19
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Impermeabilization
405157, 405217, E02D 2100, F16L 104, F16L 5700
Patent
active
045538794
ABSTRACT:
The present invention provides a method and apparatus for constructing pipelines in Arctic offshore waters by a directional drilling technique, thereby minimizing exposure to ice gouging and eliminating the hazards associated with unstable permafrost. A special drilling-pipeline construction vessel is also provided which has a conical shape with reinforced outer walls to resist ice forces, which vessel includes means to install deep underground pipeline segments and means to connect and protect the pipe ends.
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OFFSHORE Magazine, pp. 17 and 22, Dec. 1983, Pictorial Views of Self-Contained Mobil Drilling Platform, Concrete Island Drilling System.
Shell Oil Company
Stodola Nancy J.
Taylor Dennis L.
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