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Oil drilling rigs

Oil drilling rigs

Oil drilling rigs

DIFFERENT TYPES OF OIL DRILLING RIGS AND THE BIGGEST DRILLING RIGS IN THE WORLD

Oil drilling rigs are mechanical structures that are used to make holes in the ground to reach a hydrocarbon reservoir. They have different types and structures. They are classified based on the location they drill at, the maximum load they can manage, and the final depth they can reach.

As mentioned earlier, the drilling rigs are classified based on the location in which they drill. Therefore, based on this, the drilling rigs are classified to onshore and offshore drilling rigs.

Onshore drilling rigs

Drilling of these rigs was the first development in the drilling operations. Land rigs have different sizes and strengths. They are usually in light, medium, or heavy configuration. Land rigs are categorized based on two main criteria, maximum drilled depth and mobility.

  1. Classification based on the drilled depth

Generally, Land rigs look the same. They are in different sizes based on the maximum depth they are drilled. So, different types of onshore rigs are classified based on the final depth they drill. There are four different depth categories for land drilling rigs, as shown in table below.

Rig type Final drilling depth
Light weight 2km
Medium weigh 4km
Heavy weight 6km
Ultra-heavy weight Higher depth

 

  1. Classification based on mobility

There are two different types of land rigs: conventional and mobile drilling rigs. Conventional land rigs are mostly used in the petroleum industry. They cannot be moved to the drill location as whole parts. In contrast, mobile (movable) rigs are mounted on heavy trucks and cranes. There are two different types of mobile rigs: jackknife and portable mast.

Offshore drilling rigs

Offshore drilling rigs are used in the marine environments. Similar to land rigs, marine rigs are categorized based on their movability and how deep the sea bed is. Also, the water state plays an important role in marine rig, their selection and design. So, based on these, there are two different types of offshore drilling rigs, Bottom-Supported Units and Floating Units.

  1. Bottom-supported units

Bottom-supported units refer to the rigs that are in contact with the seafloor. These types of rigs have two different categories: submersible and jack-ups. The submersible rigs refer to the rigs that are in contact with the seafloor. They have four different types. The first type, which is not used anymore because of the new designs, is the post barges. The second, which has been substituted by jack-ups, is the bottle types. The other two types are the arctic and inland rigs.

On the other hand, jack-ups are those that are supported by three or five structured columns. Most oil companies use jack-ups for different purposes. They use jack-up rigs for lower marine depths and the exploration of wells. Jack-up rigs can operate at different sea depths and can drill different well depths. They are used at marine depths of 120 meters and can drill at about 9.1 kilometers.

  1. Floating units

This type of marine rig is not directly in contact with the seafloor. There are two types of floating offshore rigs: semi-submersible rigs and drilling ships. Semi-submersible rigs are partially put under the water surface and are linked to the seafloor. This type of rigs can drill at different water depths and can drill for different well depths. Some semi-submersible rigs can drill at water depths ranging from 300 meter to 1,000 meter (1 km), and some others can drill at depths of about 3.7 km. They can also drill wells of depths about10.7 km.

Also, drilling ships have different shapes and structures. They can also drill at different water depths and can drill wells of different depths. Some drilling ships can drill at water depths about 1,000 meters and others can drill at depths of about 3,000 meters. They can also drill wells of depths of about 9.1 kilometers.

THE BIGGEST OIL DRILLING RIGS IN THE WORLD

In this article, we have been familiar with different kinds of oil drilling rigs. Now, it may be interesting for you to know the biggest oil drilling rigs in the world. The biggest oil drilling rigs in the world are as follows:

  1. Berkut Oil Rig

The Berkut oil rig is located off the Russian Pacific coast near the island of Sakhalin. It is the largest oil rig in the world. Its weight is approximately 200,000 tons and is placed 35 meters deep from the seabed. Its maximum oil extraction capacity is 4.5 million tons annually.

  1. Perdido Oil Platform

Perdido oil platform is located in the Gulf of Mexico, almost 200 miles south of Galveston, Texas. The Perdido oil platform is the deepest spar-type platform in the world. It is sited in 2,450 meters (8,000 feet) of water and produces oil and gas from depths of between 2,300 and 2,800 meters (7,500 to 9,500 feet).

  1. Olympus Oil Platform (Mars B)

The Olympus oil platform, also known as Mars B, is located in the Gulf of Mexico. This platform was built to extend the life of the Mars field to at least 2050 and increase production capacity.

  1. Hibernia Platform

The Hibernia platform is placed about 196 miles east of Newfoundland, Canada. It is the largest offshore platform and its total weight is 496,040 tons.

  1. Petronius Platform

The Petronius platform is located in the Gulf of Mexico close to New Orleans. It is one of the tallest structures in the world. It was built between 1997 and 2000. Its weight is 47,399 tons and drills at a depth of 1,754 feet.

  1. Baldpate Platform

Baldpate platform is located on the coast of Louisiana. It is the first-ever free-standing offshore tower, and drills at 1,650 feet of water.

  1. Troll A Platform

The Troll A platform is located on the west coast of Norway. It is one of the tallest structures in the world, with a depth of 1,210 feet of structure below the water’s surface.

 

1 Response

  • Wow, superb blog layout! How lengthy have you
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  • Wow, superb blog layout! How lengthy have you ever been running a blog for? you made blogging glance easy. The total look of your website is excellent, as well as the content! You can see similar here ecommerce