Combined anti-collision device for external wellhead riser of offshore fixed oil production platform

Abstract

The invention discloses a combined anti-collision device for an external wellhead riser of an offshore fixed oil production platform. The device comprises a left semi-circular rubber block and a right semi-circular rubber block, wherein the inner wall of the left semi-circular rubber block is the left arc-shaped surface; the inner wall of the right semicircular rubber block is the right arc-shaped surface; the left semi-circular rubber block and the right semi-circular rubber block are buckled together; and the outer wall of the riser is tightly wrapped by the left arc-shaped surface and the right arc-shaped surface. According to the invention, direct damage of accidental collision of a ship to the riser of an oil-water well of the offshore fixed oil production platform can be reduced; and the device has the characteristics of being easy to install, convenient to replace and maintain, low in cost, long in service life and the like.

Description

technical field [0001] The invention relates to the protection technical field of an external wellhead riser of an offshore oil production platform, in particular to a combined anti-collision device for an external wellhead water riser of an offshore fixed oil production platform. Background technique [0002] Offshore oil production platforms are mainly used to exploit oil and natural gas and conduct preliminary treatment of oil and gas (such as oil and gas, oil-water separation). Generally, they are the structural foundation of multiple production wells and oil and gas processing facilities, and can be divided into fixed and mobile oil production platforms. , the platform structure design forms are various, and the wellhead of the oil and gas well can be built in or outside the main frame (jacket) of the platform. There is a layer of riser on the outside of the oil and water well casing of the external wellhead as protection, but it is exposed to the outside of the platfor...

AI Technical Summary

Problems solved by technology

There is a layer of riser on the outside of the oil and water well casing of the external wellhead as protection, but it is exposed to the outside of the platform, and there is a risk of direct collision and leakage of the ship in bad weather at sea or improper operation of the ship (especially in sea areas with many fishing boats), or Can cause oil and water wells to leak oil and gas into the sea, causing environmental pollution accidents

With the continuous improvement of my country's safety and environmental protection laws and regulations, the management of offshore environmental protection has been continuously strengthened, and various oil companies have also proposed the environmental protection goal of "zero pollution". Therefore, it is necessary to strengthen the risk protection of oil and water well leakage. Steel piles are driven and connected on the outside for protection. The construction is difficult, the cycle is long, and the cost is high.

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