Depending on water depth and metocean conditions, geotechnical surveys may be conducted from a dedicated geotechnical drillship, a semi-submersible, a jackup rig, a large hovercraft or other means. [24] They are done at a series of specific locations, while the vessel maintains a constant position.
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[pdf] An offshore rig company, also known as an offshore drilling business, is a specialized business that provides offshore oil and gas production services. These companies operate, manage, and maintain offshore drilling rigs, platforms, and associated equipment in oceans or seas.
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