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Offshore Oil Rig Employment and how an Oil Rig Works

If you have any questions on offshore oil rig employment, you can email us on info@oil-industry-jobs.com

The following is further information on how an offshore oil rig works, and specifically, the parts that much up a rig. While the following information covers offshore installations, they do share common elements with onshore rigs. Land based oil rigs are less expensive to run than offshore oil or gas rigs. Our website also features extensive information about oil rig employment and tips on getting a job in the oil industry.

Before offshore oil rigs can be setup an new oil fields utilized and fully staffed, several appraisal wells need to be drilled to make sure that the field is of viable size. Many other factors help decide whether an oil rig will go ahead on that particular site.

This process usually takes between one and five years and is studied by engineers and geophysicists to determine the viability of the project. All these steps involve considerable levels of offshore oil rig employment, and can provide a great number of jobs. In the past many offshore oil rigs productions well have been drilled vertically, today they can drill horizontally which helps in the process and aids greater production, as it is now known that hydrocarbons are usually deposited in horizontal layers not vertical. When the oil field is ready to go ahead then production wells are drilled. If insufficient amounts of hydrocarbons are found then there is no viability in offshore oil rigs being set up. However if the well is proven to have sufficient oil or gas reserves an oil rig will begin processing the oil which means that oil rig jobs will be created.

In order to reach oil or gas that is buried under shallow water, the offshore oil rig needs to stand on platforms held up by legs that are embedded into the oceans floor.
Drilling in deeper water requires specialized floating platforms. These oil rigs are anchored to the ocean floor using large chains. Oil rigs have been situated, and wells drilled up to 10,000 feet of water in the past using this method.

During your offshore oil rig employment you will likely find the following on each rig:
Accommodation module: This is where you eat and sleep. It also holds the meeting rooms and offices as well as the Temporary safe refuge (TSR) in case of an emergency.
Cranes: During oilfield jobs, these allow for the materials to be transferred from one vessel to another and also to the platform. They may also move heavy objects from one area of the platform to another.
Derricks: These derrick drills the wells and is often mounted on movable platforms also known as skids.
Flame boom: Usually located on the side of an oil or gas drill rig. The boom is aimed away from the platform and is used to flare gas in choppy or harsh weather conditions. A pilot flame is maintains atop the boom for this purpose.
Drilling mud module: This is an area of the platform which you will likely encounter on your offshore oil rig job. It is used to create a compound of chemicals, water and clay. These muds are continuously pumped down the drill pipe through holes in the drill bit. This aids in the cooling of the drill bit as well as washing the drilled cuttings away from the bottom of the hole.
Process module: In this area gas and water are separated from the oil. The water is then treated and discharged back into the ocean.
Life boat system: Aboard many oil rigs there will be more than enough lifeboats for the number of people onboard. Once released these lifeboats can be motored away a safe distance or back to land.
Ice wall teeth: These are found on oil rigs that are found in areas where there is a risk of passing icebergs. The ice wall, which is located below the platform, is designed to distribute the impact of the hitting iceberg over the whole rig.

If you have any questions about offshore oil rig employment, you can email us on info@oil-industry-jobs.com

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