«Onshore and offshore oil and gas well construction»

Offshore drilling platforms: specific features, advantages and disadvantages

UDC: 622.276.04
DOI: -

Authors:

¹ Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia

Keywords: offshore oil platforms, stationary drilling rigs, floating drilling rigs, semi-submersible drilling rigs, jack-up drilling rigs, drilling ships

Annotation:

The author of the article overviews the main types of offshore oil platforms – stationary and floating ones. Fixed offshore drilling platforms play a key role in oil and gas production on the ocean and seas shelves. Depending on their design, stationary platforms are divided into gravity-based and pile-based. Floating drilling rigs are mobile platforms capable of moving between drilling sites. They include semi-submersible drilling rigs, self-elevating mobile drilling rigs and drill ships. Semi-submersible drilling rigs are semi-stationary installations (they are mobile in sense of being able to move between sites) with partially submerged pontoons providing stability, with the submerged part of the major structure which reduces the impact of waves and wind. Jack-up drilling rigs are a type of mobile offshore drilling platform widely used for exploration and production drilling in shallow waters. Drilling ships are self-propelled vessels carrying drilling equipment. Each of these type of ships has its own unique characteristics, advantages, and disadvantages.

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