How to fix an offshore oil rig?

This one is more complicated, so let's put it simply. There are generally two kinds of offshore fixed platforms, one is a jack-up drilling platform for shallow seas, which is fixed by pile legs, and the pile legs are inserted into the seabed to be fixed, and the platform is lifted off the sea surface for operation, and the other is semi-shallow type, which is mainly used in the sea area with a water depth of more than 100 meters.

Offshore oil rigs can be divided into two categories: fixed buildings and moored facilities. Stationary buildings are fixed to the seabed either by their own weight or directly on the seabed; Tethered facilities are tethered to floating structures on the surface of the sea with anchors and cable chains. Some of them are exposed to the water, some are semi-exposed in the water, some are placed on the seabed, and there is a mobile structure or large platform on the surface of the water, which can move freely on the surface of the sea according to the needs of the operation.

If it is shallow, it is fixed with a tripod; If it is deep-sea, it is like a submarine, and it is fixed at sea by sinking into the water!

In 1953, the first jack-up platform was built in the United States, which has strong adaptability to water depth and good working stability, and the current offshore oil drilling platform can be divided into fixed and mobile types. Stationary drilling rigs are mostly built on.

1. Differences in meaning.

An offshore oil production platform is an offshore working platform built using steel or mixed information such as concrete, or a mixture of both, for offshore oil production operations.

Offshore drilling platforms are mainly used for offshore structures that carry out drilling activities at sea. It is equipped with drilling, power, communication, navigation and other equipment, as well as safety and life-saving and personnel living facilities. It is an indispensable means for offshore oil and gas exploration and development.

2. The difference in classification is like slippery.

The classification of offshore oil production platforms is divided into integrated oil production platforms (centralized oil production platforms) and combined oil production platforms (decentralized oil production platforms) according to the layout scheme of the platforms; According to the role of the platform, it is divided into oil and gas exploitation platform, offshore oil and gas gathering and transportation platform, and offshore service platform; According to the manufacturing materials, it is divided into pile-based steel platform, gravity concrete platform, pile-based concrete mixed platform, and slag tanla.

Offshore drilling platforms are classified into fixed drilling platforms and mobile drilling platforms according to migration; According to the drilling method, it can be divided into floating (floating) drilling platform and stable (subsea support) drilling platform.

3. Differences in characteristics.

The main characteristics of the offshore oil production platform are that it is used to extract oil and gas and carry out preliminary treatment of oil and gas, and must become the basis of multiple production wells and oil and gas treatment facilities; This type of platform is fixed at an anchor point for a long time, and generally uses a fixed type; The oil and gas produced by the extraction platform can be partially stored by itself, and a large amount needs to be stored on another oil storage platform, which is transported to the land by fixed pipeline tankers.

The main characteristics of the offshore drilling platform are good stability, high migration, shallow water depth and good economy. The platform is used to place drilling equipment, provide a working place and a living place for staff; The anchoring system positions the platform, and controls the horizontal position of the platform through anchors and anchor chains, which is limited to a certain range to meet the requirements of drilling work.

Offshore drilling platforms can be roughly divided into fixed and mobile, of which mobile types mainly include jack-up and semi-submersible.

1) The fixed drilling platform, which is directly fixed on the seabed, is fixed on the seabed through the pipe frame structure, and the position is fixed during the whole service life and can no longer be moved.

2) The jack-up drilling platform is composed of a platform, a pile leg and a lifting mechanism. The fixation method is fixed by pile legs (pillars), which can increase the distance of the platform from the water surface to improve resistance in the event of unexpectedly high waves.

During work, the pile leg is lowered and inserted into the seabed, and the platform is lifted to a safe working height away from the sea surface, and the pile leg is preloaded; After the well is drilled, the platform is lowered to the sea surface, the pile legs are pulled out and all are lifted, and the entire platform floats on the sea surface, and is dragged to a new drilling position by a tug to continue the operation.

3) Semi-submersible drilling platform, the upper part is the working deck, and the lower part is two lower hulls, connected by support columns. This type of platform fixation is mainly through the anchor chain plus power control system (if there is a drift, the balancing power unit on the platform will be activated to push the platform back to the original correct position).

When working, the hull dives into the water, the deck is at a safe height on the water, the waterline area is small, the wave impact is small, the stability is good, the self-sustaining force is strong, and the working water depth is large.

Arrangement of offshore drilling platforms.

The overall arrangement of the platform is to solve the overall problem of process layout and structural layout. As an offshore drilling site, the offshore drilling platform can not change the position of various mechanical equipment and stacked equipment and materials as the land well site at will, because each platform is designed and built according to a certain distribution of process facilities to determine the structural form and size of each part of the platform.

Changing the process layout of the platform will have different degrees of influence on the strength and stability of the platform, so the equipment is selected according to the process requirements when the platform is designed and constructed, and the structural size of the platform is determined according to the arrangement position of these equipment on the platform.

Often, in order to make the distribution of process equipment and the configuration between the platform structure reasonable, it is necessary to determine after repeated research and comparison.

As a giant tower at sea, how does the drilling platform be as stable as Mount Tai, generally speaking, the drilling platform is mainly divided into three types: fixed, jack-up and semi-submersible.

What is it like to live there when an offshore drilling platform is fixed on the sea all year round? There is a lot of hard work and dedication, so it is impossible for ordinary people to understand, now I will give you a specific explanation, friends can refer to:

First, the work of the offshore drilling platform will be very boring and lonely:

The work of offshore drilling platforms is very important, because offshore resources are very important to the country, and most of the oil and natural gas resources need to be met by marine work. There are many offshore drilling platforms in China, and it is also one of the countries with the best technology, but these achievements are the hard work of the staff to have such a harvest. There are only staff on the offshore drilling platform, and life is very boring, because there is no communication with relatives, so life will definitely be very lonely.

Some people have been interviewed for offshore drilling platform work, because there is no network signal, so it will be very difficult for them to contact their families, so everyone can only encourage each other to forget loneliness in their work, so some people in these jobs are very hard, and their efforts are beyond the imagination of ordinary people, and they deserve our respect.

Second, the food is relatively monotonous, and life is very hard

Life on an offshore rig is not only monotonous and lonely, but also very hard, because the offshore rig needs to be constantly maintained, and there is a lot of work to be done every day, so the work is more tiring. At the same time, due to the difficulty in supplying food for offshore drilling platforms, the food for the staff is relatively simple, so they need to stick to it. The single food will cause the life of the staff to be difficult, which is a test for the staff of the offshore drilling platform.

3. Without any entertainment facilities, people's emotions cannot be vented

Personally, I think it must be a very beautiful thing to live there, to be able to be with the sea every day, to get up in the morning to watch the sunrise, and to be able to see the sunset at night, the scenery must be very beautiful.

The offshore drilling platform is very huge, just like a small city on the sea, and there is not much difference between living on it and on land, that is, you have to eat seafood with the sea breeze all year round.

I think it's a very thrilling experience to live there because it's very unsafe to live on the sea.