A deepwater drilling platform suspension riser avoid platform evacuation test system and method

A drilling platform and test system technology, applied in the field of deepwater drilling, can solve the problems of inability to effectively simulate various sea conditions, evacuation methods and suspension methods, and achieve fast and convenient switching, improve test efficiency, and simulate accurate effects.
CN110987364BActive Publication Date: 2021-08-27CHINA NAT OFFSHORE OIL CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2021-08-27

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Abstract

The present invention relates to a suspension evacuation test system and method for a deepwater drilling platform suspension riser, including a marine environment simulation subsystem, a drilling platform movement simulation subsystem, a drilling platform suspension riser simulation subsystem and a data acquisition device, the drilling platform The motion simulation subsystem is installed above the pool, and the circular slide rail is connected to the cross bracket through a steel cable. The three-degree-of-freedom motion slide table can realize linear motion in different directions, and the whole can slide along the slide rail and be fixed by a limit pin. The suspension riser simulation subsystem of the drilling platform can switch between soft and hard suspensions through springs and locking blocks. The data acquisition device includes fiber grating sensors, fiber grating demodulators, three-component force meters and encoders. The invention can truly simulate the mechanical behavior of the riser under different suspension riser modes of the drilling platform, different sea conditions and different platform movement states, and provides guidance for the deepwater drilling platform suspension riser evacuation decision-making.
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Description

Technical field

[0001] The present invention relates to a suspended platform deepwater drilling riser system and method for avoiding the withdrawal table test, deepwater drilling technical field belongs. Background technique

[0002] South my country Sea known as the "second Persian Gulf," said the huge reserves of oil and gas resources, the amount of oil equivalent resources within the traditional boundaries of about 23% of the total resources of our country, and about 70% of the resources inherent in the vast area of ​​deep water Area. But the harsh marine environment of the South my country Sea, offshore oil and gas operations process may suffer from extreme natural disasters such as typhoons, especially in the most widespread impact of the typhoon. The past 30 years, each year about 25 typhoons in the northwest Pacific Ocean generation, which affect more than half of the my country Sea, has become the biggest environmental challenges of deepwater oil and gas development in th...

Claims

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