CN102114902A - Efficient rapid emergency maintenance ship for submarine pipeline - Google Patents

Abstract

The invention discloses a high-efficiency and fast submarine pipeline emergency repair ship used for the maintenance operation of the submarine pipeline. The hull, lifting pile, ventilation pile, lifting driving device, maintenance working cabin, propeller driving system and living building constitute an efficient and fast submarine pipeline emergency repair ship. Its main installation method is that the lifting drive device, the propeller drive system and the living building are all installed on the hull. When carrying out the emergency repair operation of the submarine pipeline, the ventilation pile is first lowered through the driving gear of the lifting drive device, and then the maintenance work cabin is driven into the water until the docking and positioning with the submarine pipeline is completed, and then the pipeline maintenance operation is carried out. Efficient and fast The self-propelled function of the submarine pipeline emergency repair ship and the liftable technology of the maintenance work cabin enable the rapid positioning of the submarine pipeline without using high-cost tools such as tugboats, floating cranes, and auxiliary ships, effectively shortening the maintenance cycle and reducing oil leakage Pollution to the marine environment, ensuring the safe production of offshore oil and gas fields, and avoiding major economic losses.

Description

Efficient and fast submarine pipeline emergency repair ship

technical field

The invention relates to a fast operation ship used for emergency repair of submarine pipelines, belonging to the field of machinery.

Background technique

Submarine pipelines are an important part of offshore oil and gas fields, and are known as the main artery of the offshore economy. More than 60 submarine pipelines have been built in my country's offshore waters, with a total length of more than 3,000 kilometers, all over the Bohai Sea, South China Sea and East China Sea. But what followed is that environmental pollution and explosion accidents caused by the rupture of submarine oil and gas pipelines in Bohai Sea and South China Sea have been increasing in recent years. to the stability of the local society.

A special report in China National Offshore Oil News on March 12, 2008 was enough to make people worry about the current status of submarine pipelines. In the central control room of the Dongfang Terminal of the Zhanjiang Branch of the Co., Ltd.,...the pressure of the submarine pipeline on the shore displayed on the computer screen...after 2 seconds, the pressure dropped sharply to 0.9 MPa...and I saw a flame more than 50 meters high shooting out from the sea directly ahead, and the gas Explosions continued amidst water waves... The gas dragon died, and Qiongdao was shocked... The local media commented: The break of the Dongfang 1-1 landing pipeline not only affects the domestic chemical fertilizer and methanol market and the lives of the people in Hainan, but also It has caused an impact internationally... Li Guoliang, assistant to the governor of Hainan Province...for all parties involved in the war:...do not hesitate to go all out to ensure that the pipeline will be repaired and completed as soon as possible....Repair as soon as possible? The mobilized floating crane....Only to hoist the land-use car to the engineering ship for hoisting operations...At 11 o'clock in the evening on December 30, 2007, CNOOC CNOOC Kingboard's 600,000-ton methanol plant successfully started up..., We have succeeded in emergency repairs every time, but every time we are in a state of embarrassment, a small sea pipeline makes these technical elites of COOEC physically and mentally exhausted.”

From the above situation, it can be seen that my country's offshore oil urgently needs an effective repair device for ruptured submarine pipelines. For this reason, an efficient and fast emergency repair ship for submarine pipelines is proposed.

The present invention is designed to solve the above problems, the purpose is to shorten the maintenance cycle, reduce the pollution of the marine environment caused by crude oil leakage, provide an effective and fast workboat for the emergency repair of submarine pipelines, realize the rapid repair of submarine pipelines, and protect offshore oil and gas fields. Safe production and avoid major economic losses.

Contents of the invention

The technical problem to be solved by the present invention is to provide a fast and efficient operation ship for emergency repair of submarine pipelines. The self-propelled function of the ship and the liftable technology of the maintenance cabin can realize the rapid positioning of submarine pipelines without using tugboats and floating cranes. , Auxiliary ships and other high-cost construction vessels, the purpose of the invention is to provide a safe and reliable fast operation ship for the emergency repair of submarine pipelines.

For solving the problems referred to above, the present invention is achieved in that the present invention mainly comprises hull, lifting pile, ventilation pile, lifting driving device, maintenance working cabin, propeller driving system and living building. One of its features is that the lifting drive, the propeller drive system and the living building are all installed on the hull. The second feature is that there are at least three lifting piles. The third feature is that at least one rack is arranged on the lifting pile, and the rack is meshed with the driving gear of the lifting drive device. The fourth feature is that at least one rack is installed on the ventilation pile, and the rack is meshed with the driving gear of the lifting drive device. The fifth feature is that the upper end of the ventilation pile is equipped with a ventilation cap, and the lower end is connected with the maintenance work cabin.

The working process of the high-efficiency and fast submarine pipeline emergency repair ship is as follows: the first step is self-navigation and positioning, when a submarine pipeline in a certain sea area ruptures, the efficient and fast submarine pipeline emergency repair ship self-navigates to the submarine pipeline through the propeller drive system For the damaged site, use the satellite positioning system to adjust the working position of the hull. The second step is to promote the hull. At first, the lifting pile is lowered by the driving gear of the lifting drive until the lifting pile is inserted into the seabed to a certain depth, and then the hull is lifted to a certain height above the sea surface. The third step is to lower the maintenance work cabin. First, the ventilation pile is lowered through the driving gear of the lifting drive device, and then the maintenance work cabin is driven into the water until the docking and positioning with the submarine pipeline is completed, and then the maintenance operation is performed. The fourth step is to upgrade the maintenance work cabin. After the maintenance of the submarine pipeline is completed, the ventilation pile is lifted through the driving gear of the lifting drive device, and the maintenance work cabin is driven back into the hull. The fifth step is to finish work and return to the voyage. First, the hull is lowered to the sea surface through the driving gear of the lifting drive device, then the lifting pile is pulled out from the seabed and retracted to the lower end of the hull, and finally the propeller drive system is activated to make the efficient and fast submarine pipeline emergency repair ship return to the voyage. .

The present invention can solve the problems of long maintenance time and huge cost of submarine pipelines at present, without using high-cost construction tools such as tugboats, floating cranes, and auxiliary ships, and the entire ship device has the advantages of simple and reliable structure, and convenient and quick operation. The liftable technology of the maintenance work cabin of the present invention can effectively realize the rapid positioning of the submarine pipeline, and has very high promotion and application value.

Description of drawings

Fig. 1 is a schematic diagram of the elevation of the high-efficiency and fast submarine pipeline emergency repair ship of the present invention.

Fig. 2 is a schematic plan view of the high-efficiency and fast submarine pipeline emergency repair ship of the present invention.

1 Hull 2 Lifting pile 3 Ventilation pile 4 Rack 5 Lifting drive device 6 Driving gear

7Maintenance work cabin 8Submarine pipeline 9Propeller drive system 10Living building

11 vent cap

Detailed ways

As shown in Fig. 1 and Fig. 2, the present invention mainly comprises hull 1, lifting pile 2, ventilation pile 3, lifting driving device 5, maintenance working cabin 7, propeller driving system 9 and living building 10. One of its characteristics is that lifting drive unit 5, propeller drive system 9 and living building 10 are all installed on the hull 1. The second feature is that there are at least three lifting piles 2 . The third feature is that at least one rack 4 is installed on the lifting pile 2, and the rack 4 is meshed with the driving gear 6 of the lifting drive device 5. The fourth feature is that at least one rack 4 is installed on the ventilation pile 3, and the rack 4 is meshed with the driving gear 6 of the lifting drive device 5. Five of its feature is that the upper end of ventilation pile 3 is equipped with ventilation cap 11, and the lower end is docked with maintenance work cabin 7.

As shown in Figure 1 and Figure 2, the working process of the high-efficiency and fast submarine pipeline emergency repair ship is: the first step is self-propelled into place, when the submarine pipeline 8 in a certain sea area ruptures, the propeller drive system 9 is used to efficiently The rapid submarine pipeline emergency repair ship self-navigates to the damaged site of the submarine pipeline 8, and uses the satellite positioning system to adjust the working position of the hull 1. The second step is to promote the hull 1. At first, the lifting pile 2 is lowered by the driving gear 6 of the lifting drive device 5 until the lifting pile 2 is inserted into the seabed to a certain depth, and then the hull 1 is lifted to a certain height above the sea surface. The third step is to lower the maintenance work cabin 7. First, the ventilation pile 3 is lowered through the driving gear 6 of the lifting drive device 5, and then the maintenance work cabin 7 is driven into the water until the docking and positioning with the submarine pipeline 8 is completed, and then the maintenance operation is performed. The fourth step is to upgrade the maintenance work cabin 7. After the maintenance of the submarine pipeline 8 is completed, the ventilation pile 3 is lifted by the driving gear 6 of the lifting drive device 5, and the maintenance work cabin 7 is driven to be retracted in the hull 1. The fifth step is to finish work and return to the voyage. First, the hull 1 is lowered to the sea surface through the driving gear 6 of the lifting drive device 5, and then the lifting pile 2 is pulled out from the seabed and retracted to the lower end of the hull 1, and finally the propeller drive system 9 is started to make it efficient and fast. The submarine pipeline emergency repair ship returns.

Claims (5)

1. Efficient and rapid submarine pipeline emergency repair ship, including hull (1), lifting pile (2), ventilation pile (3), lifting drive device (5), maintenance work cabin (7), propeller drive system (9) and living Floor (10). It is characterized in that a lifting drive device (5), a propeller drive system (9) and a living building (10) are all installed on the hull (1). 2. The efficient and fast submarine pipeline emergency repair ship according to claim 1, characterized in that there are at least three lifting piles (2). 3. The high-efficiency and fast submarine pipeline emergency repair ship according to claim 1, characterized in that at least one rack (4) is installed on the lifting pile (2), and the rack (4) and the lifting drive device (5) The drive gear (6) is meshed. 4. The high-efficiency and fast submarine pipeline emergency repair ship according to claim 1, characterized in that at least one rack (4) is installed on the ventilation pile (3), and the rack (4) and the lifting drive device (5) The drive gear (6) is meshed. 5. The high-efficiency and fast submarine pipeline emergency repair ship according to claim 1, characterized in that the upper end of the ventilation pile (3) is equipped with a ventilation cap (11), and the lower end is connected to the maintenance cabin (7).

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