Deepwater underwater oil-storage petroleum production device with a dynamic positioning buoy

Abstract

The invention relates to a deepwater underwater oil-storage petroleum production device with a dynamic positioning buoy. A complete system comprises an underwater wellhead module, an underwater processing module, an oil-water replacement underwater oil-storage module, a deepwater upright tube, a dynamic positioning buoy and a shuttle tanker, wherein the underwater wellhead module, the underwater processing module and the oil-water replacement underwater oil-storage module are all arranged at the seabed and are connected in series; the dynamic positioning buoy floats on the water surface; one end of the deepwater upright tube is connected with the underwater storage module, and the other end is connected with the dynamic positioning buoy; and the shuttle tanker is tied and parked on the dynamic positioning buoy when the oil is filled. The device can replace a floating production system to develop the offshore oil in the deep sea, basically avoid the ice force, the wind wave force and the like suffered by the floating production system and greatly avoid the production halts in order to take shelter from the wind, and has better benefit in particular in the water of which depth is more than 500 meters.

Description

Technical field:

[0001] The invention belongs to the field of marine engineering and develops an underwater oil storage oil production device for deep water. Background technique:

[0002] Traditional oil storage and production systems in deep sea oil development mainly include floating production systems and semi-submersible production platforms, both of which belong to floating oil storage and production models. The floating production mode can be regarded as a mature technology in the world and has many advantages. However, due to the huge force of sea waves, both the offshore structure and its tethering system are expensive, and with the increase of water depth, technical difficulties Higher and higher, the cost of facilities has risen sharply. On the seabed of deep sea oilfields, the effect of wind and waves is almost negligible. Under the premise of solving the problem of primary treatment of oil and gas under underwater high pressure conditions, the underwater gather...

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