A test device for simulating mechanical properties of riser in deepwater drilling conditions

Abstract

The invention relates to a test apparatus for simulating mechanics characteristics of a water-resisting pipe under deepwater drilling well conditions. The test apparatus comprises a supporting device, an ocean wave simulating device, a drilling well simulating device, a water-resisting pipe tensioning system, a water-resisting pipe deflection system, a hydraulic system, an air compression system and a data acquisition system, wherein the drilling well simulating device is connected with the supporting device through the water-resisting pipe tensioning system and the water-resisting pipe deflection system, the supporting device comprises a pool and a bracing frame body erected above the pool, the water-resisting pipe tensioning system comprises a connecting rack, a tensioning ring and a steel wire rope, the ocean wave simulating device comprises four submersible pumps and a water supply system, the drilling well simulating device comprises a drilling rod, a drill bit, an oil cylinder and an oil motor, the hydraulic system is connected with the oil cylinder and the oil motor of the drilling well simulating device, the air compression system is connected on the drilling well simulating device, and the data acquisition system comprises a foil gauge and a foil gauge data acquisition instrument. The apparatus can simulate different conditions encountered by a water-resisting pipe during deepwater well drilling, and is wide in application scope, and high in universality.

Description

technical field [0001] The invention relates to a test device for simulating the mechanical characteristics of a water riser under deep-water drilling conditions, and belongs to the technical field of offshore oil equipment. Background technique [0002] Offshore oil and gas resources have become an important part of the global energy strategic goals, and offshore oil development has developed from shallow water to deep water and ultra-deep water. However, limited by the harsh conditions of drilling and production in deep water areas, it puts forward higher and more stringent requirements for oil drilling and production equipment. The research and development technology of my country's deep-water oil exploration equipment has become one of the bottlenecks restricting my country's deep-water oil and gas development. [0003] The riser system is the link and bridge connecting the surface platform and the subsea oil well in the offshore drilling equipment, and it is one of the...

AI Technical Summary

Problems solved by technology

At present, the riser test device can only make a simple simulation of its force, especially the exciting force of the drilling equipment on the riser can only be artificially loaded, and the impact of the working conditions of the drill bit on the riser cannot be simulated; and It can only simulate the influence of waves on the riser, but cannot simulate the influence of ocean currents on the riser, let alone the influence of the combination and change of ocean currents

Therefore, there is not yet a test device that can fully simulate the complete force of the riser during the drilling process

Images