Weighting and cooling underwater oil storage method

Abstract

The invention provides an underwater oil storage method. Iron ore powder serves as a weighting material, the density of an oil mixture is increased so that the oil mixture cannot float up, and thus relative movement and kinetic energy are eliminated; the temperature of a mixture of oil and the iron ore powder is lowered as much as possible, the viscosity of the mixture is increased to achieve the purpose of solidification, the flowing speed of the mixture and the travelling speed of sulfide are slowed down, the leakage speed and the aggregation velocity of the sulfide are reduced, and in an ideal situation, the mixture, just like pitch, can not be prone to flow; and the iron ore powder is also a significant industrial raw material, and the oil is stored while the weighting material is also stored properly. The method is simple and feasible, safe and reliable, and the method makes contribution to achievement of the purposes that the transport distance is shortened, less land is occupied, influences on the land and the water area environment are reduced, safety is improved, energy consumption is reduced, and the storage cost is lowered.

Description

technical field [0001] The invention relates to a method for storing oil under water, and the technology belongs to the field of petrochemical storage and transportation. Oil refers to crude oil, diesel, gasoline, lubricating oil and other liquid petroleum. technical background [0002] The idea of ​​underwater oil storage was proposed as early as 1935, but it was not practically applied until 1967. Its purpose is to shorten the transportation (delivery) distance, reduce the wind and sun, extreme heat and cold, expansion and contraction, and the destruction of its own gravity. function, improve safety, reduce environmental impact, save land, etc. After more than half a century of development, storage tanks with annular chassis, inverted disk-shaped storage tanks, double-cylindrical concrete underwater oil tanks, vertical reinforced concrete underwater storage tanks with anti-wave walls, and ellipsoid-paraboloid-shaped storage tanks have been developed. Underwater concrete ...

AI Technical Summary

Problems solved by technology

However, in the process of oil-water replacement, there will always be a small amount of oil discharged into the surrounding waters with the water, and the environmental pollution caused by accumulation cannot be ignored

[0004] Also, most oil products contain a small amount of sulfur, for example: the world-famous sulfur-free Daqing crude oil still contains 0.1% sulfur in mass fraction, and all the sulfur compounds are gathered together in a container of hundreds of square meters , the corrosion damage to the equipment is also great, and sometimes endangers personal health and life safety

[0005] The most important thing is that the soft container has a large buoyancy, it always tends to break free from the shackles of fixed objects, is in a turbulent state, and there is always the danger of moving, wearing, breaking free and leaking