Offshore Oil, Student Energy

OFFSHORE OIL

Offshore drilling is an extraction mechanism which permits companies to access oil deposits under the ocean floor [1] What is Offshore Oil Drilling? Accessed Five.17.2015. http://www.wisegeek.com/what-is-offshore-oil-drilling.htm What is Offshore Oil Drilling? Accessed Five.17.2015. http://www.wisegeek.com/what-is-offshore-oil-drilling.htm . Offshore drilling sites are typically situated overheen the continental shelf, albeit advancements ter drilling technology have made platforms even further out to sea economically and physically feasible.

Offshore reservoirs can be identified through 3D seismic surveys, which scan the seabed to understand the rock formations. Sound swings are sent, received and decoded from the survey vessels to create 3D pics, which depict the oil and natural gas pockets hidden inbetween the porous rocks underneath the sea [Two] National Energy Technology Laboratory. “Deepwater Technology”. Accessed Five.17.2015. http://www.netl.doen.gov/research/oil-and-gas/deepwater-technologies National Energy Technology Laboratory. “Deepwater Technology”. Accessed Five.17.2015. http://www.netl.doet.gov/research/oil-and-gas/deepwater-technologies .

The type of oil equipment used ter offshore drilling depends on the depth at the location, the type of oil, and prevailing conditions. The general categories include [Three] Singh, Bikram. (March, 2013). “Basics of Offshore Drilling: Types of Mobile Drilling Units.” Marine Insight. Retrieved From: http://www.marineinsight.com/marine/marine-news/headline/basics-of-offshore-drilling-types-of-mobile-drilling-units/ Singh, Bikram. (March, 2013). “Basics of Offshore Drilling: Types of Mobile Drilling Units.” Marine Insight. Retrieved From: http://www.marineinsight.com/marine/marine-news/headline/basics-of-offshore-drilling-types-of-mobile-drilling-units/ Singh, Bikram. (March, 2013). “Basics of Offshore Drilling: Types of Mobile Drilling Units.” Marine Insight. Retrieved From: http://www.marineinsight.com/marine/marine-news/headline/basics-of-offshore-drilling-types-of-mobile-drilling-units/ Singh, Bikram. (March, 2013). “Basics of Offshore Drilling: Types of Mobile Drilling Units.” Marine Insight. Retrieved From: http://www.marineinsight.com/marine/marine-news/headline/basics-of-offshore-drilling-types-of-mobile-drilling-units/ [Four] Drilling Informatie. “Oil and Gas Offshore Equipments: a Primer on Offshore “. May 8, 2014. Drilling http://informatie.drillinginfo.com/offshore-rigs-primer-offshore-drilling/ Drilling Informatie. “Oil and Gas Offshore Equipments: a Primer on Offshore “. May 8, 2014. Drilling http://informatie.drillinginfo.com/offshore-rigs-primer-offshore-drilling/ :

  • Drilling barges: Utilized for shallow water drilling te silent water conditions. Drilling equipment is placed on to the barges’ decks and towed to the webpagina by tugs. Anchors hold the barges ter position where drilling is to be carried out.
  • Jack up equipments: Thesis drilling structures are placed onto the webpagina by lowering and rooting their three or four giant gams on the sea floor. The barges are then lifted up above water. They are more stable than the floating equipments and are therefore able to drill up to 100 meters.
  • Submersible equipments: Thesis equipments are pontoon based which permit for water ballasting and de-ballasting ter order to position, anchor and re-float the massive structure. All necessary drilling equipment is fitted on the platform’s deck, similar to the drilling barges and jack-up equipments. Their operations are limited to shallow waters due to their submersible vormgeving.
  • Semi-submersible equipments: A Semi-Submersible equipment is a Mobile Offshore Drilling Unit better known spil MODU, which is designed for offshore drilling ter ultra-deep waters of the oil and gas rich areas across the globe. They are partially submerged te water during drilling operations and are normally moored to the sea bedding by anchors.
  • Drill ships: Maritime vessels modified to drill wells te oil and gas fields. They are adapted to provide finish offshore drilling solutions. Drill ships are fitted with expensive machinery and drilling equipment, which are similar to the ones fitted on any other drilling unit. Since they are required to work te ultra deep water areas ranging up to 3000 meters, all supplies and equipment are catered by the offshore work boats. The drill ships have a drilling deck and are tooled with a moon pool, and are somewhat similar ter vormgeving spil the other drilling units. The drilling equipment that passes the moon pool is connected to the ‘sub-sea well’ via the ‘riser pipe’ (which is supple to some extent).

Offshore drilling processes suggest access to previously untapped oil reserves. The access permits some nations to rely on their own reserves rather than importing, or even exporting, oil. This te turn improves the energy independence of nation states that have few onshore resources.

Offshore drilling can be enormously dangerous. Several accidents have caused equipments to explode, capsize, or become badly bruised, with accompanying loss of life. Severe weather conditions, problems with the equipment, and potential dangerous geological conditions, are all challenges to the offshore drilling process.

The environmental effects of offshore drilling are primarily caused by pollution related to poorly maintained and operated equipments. Oil spills around equipments are common, especially at the seafloor, where drilling may stimulate seepage of both oil and potentially powerful metals. Offshore oil drilling also disrupts the ocean ecology where the drilling is located. Ultimately, the aesthetics of the equipments off the coastline are an punt for neighboring communities.

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