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What Is Offshore in the Energy Industry & the Procedures

Offshore is a crucial activity in the oil and gas industry, as it involves the extraction of petroleum naphtha, and natural gas. Offshore exploration involves several complex processes, from exploration to evaluation of the hidden gas and oil potential. This article discusses offshore and the differences from onshore. So, read this article until the end.

1. Exploration

In this step, you will identify a geological area underwater with potential for natural gas and oil. A geophysical company will do a scientific survey using a survey vessel that releases sound waves into the sea.

Then, they will gather the sound waves reflected and analyze them. Aside from finding resources, some environmental considerations must also be examined before drilling.

2. Drilling

Once an area has been confirmed to have potential resources, the next step is drilling using a special platform called a Mobile Offshore Drilling Unit (MODU).Drilling is usually carried out at depths of 200 meters or more, up to thousands of meters.

The drilling equipment used is equipped with the latest technology that can handle water pressure, maintain safety during drilling, and ensure stability.

Types of Offshore Vessels

1. Drilling Vessel

The drilling vessel is equipped with drilling technologies capable of drilling to depths of up to 3,000 meters below the sea surface. This type of vessel can be easily moved to areas that need drilling.

2. FPSO Vessel

FPSO, or Floating Production Storage and Offloading, is a vessel designated to extract resources under the sea. More than that, an FPSO vessel is used to save and produce resources before they are distributed to the onshore facility.

3. Survey Vessel

Survey vessels are used to collect geological data from areas to be extracted. As explained earlier, these vessels are equipped with devices that emit sound waves to detect potential resources in the sea.

4. Crane Barge

A crane barge is a ship equipped with special cranes to carry loads and heavy machinery from the sea.

5. Production Vessel

This vessel is used to extract resources from the sea floor. Typically, it is connected to the underwater pipeline, which delivers resources to the onshore facility.

The Steps of Oil and Gas Offshore Exploration

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