Marine riser vibration characteristic simulation test device under deepwater well drilling working condition and test method

Abstract

The invention discloses a marine riser vibration characteristic simulation test device under a deepwater well drilling working condition. The marine riser vibration characteristic simulation test device comprises a pool (1) and a trailer (2), wherein a lifting device A (3) is arranged on a horizontal sliding rail (8) of the trailer (2), a marine riser model (5) is connected with a connector A (9) at the bottom of the lifting device A (3) and a connector B (10) at the bottom of a lifting device B (4), the connector A (9) is communicated with a container (6), the connector B (10) is communicated with a liquid pump (7), and a tension adjusting device (33) is further arranged on the marine riser model (5). The invention further discloses a test method of the device. The marine riser vibration characteristic simulation test device has the advantages of being capable of simulating vibration performance of a marine riser of deepwater well drilling under different working conditions, suitable for marine riser models with different lengths, capable of simulating influence of different types of tensile force, different well drilling fluid density, different drilling fluid viscosity, different well drilling discharge capacity and different well drilling rotating speeds on vibration characteristics of the marine riser models, and capable of accurately obtaining real-time data in the test process.

Description

technical field [0001] The invention relates to the technical field of deepwater drilling, in particular to a simulation test device and a test method for the vibration characteristics of a riser under deepwater drilling conditions. Background technique [0002] Offshore oil and gas resources have now become an important part of the global energy strategy, and deep waters will become the main battlefield for the exploration and development of oil and gas resources in the future. However, the mining environment in deep-water areas is harsh, which puts forward higher requirements for deep-sea drilling equipment. The riser system is a bridge connecting the surface platform and the subsea oil well. It is one of the most critical equipment in deepwater drilling operations. When the natural frequency of the riser vibration is close to the frequency of the vortex shedding generated by the ocean current, the phenomenon of vortex-induced vibration occurs. Vortex-induced vibration no...

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Problems solved by technology

[0006] However, relevant test devices at home and abroad do not consider factors such as drilling displacement, drilling speed, drilling fluid density, and drilling fluid viscosity during deepwater drilling. To s

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