Shoal sea area rescue operational ship with pile driving and pulling device and ship body fixing method

Abstract

The invention relates to a shoal sea area rescue operational ship with a pile driving and pulling device. A through hole allowing driving and pulling of a pile is arranged on a deck of an operational ship body, a hollow hoisting truss is fixedly connected on the ship body deck at the upper edge of the through hole, the vertical pile is suspended in the hoisting truss, racks are symmetrically and longitudinally arranged on the lateral side of the outer surface of the pile, and a lifting mechanism which drives the pile to reciprocate longitudinally and enable the pile to be driven in or pulled out of the seabed is meshed with the racks. By means of driving of the pile by the pile driving and pulling device arranged on the ship body, the ship body can be stably fixed to a shoal sea area to set rescue equipment, personnel and corresponding goods and materials down, and after rescue is finished, the ship body can be unfixed to sail freely by means of pulling of the pile by the pile driving and pulling device. The deck of the fixed rescue ship body can serve as a reliable operating platform.

Description

technical field [0001] The invention relates to equipment for emergency operation of submarine oil pipes, in particular to an emergency operation ship in shallow sea area provided with a device for inserting and pulling out piles and a fixing method for the hull. Background technique [0002] Submarine pipelines are an indispensable lifeline project for the development of offshore oil and gas fields. Since the first submarine pipeline was laid in my country in 1973, the construction speed of submarine pipelines has been accelerating year by year. The working environment of submarine pipelines is harsh, and there are dangerous factors such as oil and gas corrosion inside the pipeline, wave erosion outside the pipeline, impact by third-party operations, and trawling. With the increase in the number of kilometers of submarine pipelines and the increase in service life, the risk of rupture and leakage of submarine pipelines increases year by year. In recent years, submarine pipe...

AI Technical Summary

Problems solved by technology

However, at present, the above-mentioned emergency rescue ships and equipment have poor applicability in the emergency rescue of submarine pipeline leakage in shallow seas and extremely shallow seas.

The reason is that in beach areas where the water depth is less than 3 meters, the high tide in these areas is the sea and the ebb tide is a beach. If the submarine pipeline in this area is damaged and leaked, there will be problems where land transport vehicles cannot go down due to the low bearing capacity of the beach soil. However, due to the lack of water depth, large rescue ships cannot approach, resulting in the reality that marine emergency equipment cannot enter. Even if some small ships can reach the scene of the accident, they cannot be fixed, nor can they effectively and safely unload rescue equipment and personnel.

[0004] To sum up, in the current emergency operations in shallow sea areas, emergency equipment, materials and personnel cannot be delivered to the accident site in a timely and effective manner.

At the same time, there is a lack of a stable and safe rescue work platform in the place where the accident occurred. The existing large ships are easy to run aground, while the small ships are obviously affected by environmental factors, and there are hidden dangers of unstable and unsafe hulls, and the carrying capacity is limited.

Images