An inclined water-sealed oil cavern for efficient treatment of deposited oil sludge

Abstract

The invention relates to the technical field of steam crude oil storage, and discloses an inclined water-sealed petroleum cavern capable of efficiently treating deposited oil sludge. The inclined water-sealed petroleum cavern comprises a cavern body with an inner space similar to a cuboid; a bottom of the cavern body inclines to one side at an alpha angle; jet pipelines are buried at the bottom; the jet pipelines comprise a jet pipeline group which is positioned at the lower part of the bottom, an inlet pipeline group which is positioned at the higher part of the bottom, and a jet pump which communicates the jet pipeline group and the inlet pipeline group; an auxiliary stirrer is fixedly connected with the side wall near the bottom of the cavern body; the auxiliary stirrer comprises a motor which is embedded into the side wall of the cavern body and a stirring impeller which is fixedly connected with an output shaft of the motor; and the stirring impeller rotates in the vertical direction. The inclined water-sealed petroleum cavern capable of efficiently treating the deposited sludge has the beneficial effects that integral stirring of the inclined water-sealed petroleum cavern canbe realized by a local stirring method, energy consumption is reduced, stirring in the transverse direction and the longitudinal direction can be realized at the same time, and the stirring effect isgood.

Description

technical field [0001] The invention relates to the technical field of gasoline and crude oil storage, in particular to an inclined water-sealed oil cavern for efficiently treating deposited oil sludge. Background technique [0002] When extracting crude oil from crude oil wells, in the natural environment of crude oil wells, it is inevitable that some ore mud will seep into and be produced together with crude oil. When crude oil is stored in oil tanks, the condensable substances in it settle at the bottom of the tank to form high-viscosity sludge. If the sludge accumulates, it will cause the loss of crude oil, the reduction of the storage capacity of the oil tank, the water and salt in the sludge will continue to corrode the bottom of the tank, and many other problems. Due to the difficulty in manufacturing underground water-sealed caverns, it is difficult to make them circular like ground oil tanks. The structure is generally rectangular, so it is impossible to install a ...

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Problems solved by technology

[0003] In order to solve the problem in the prior art that the overall stirring of the cavern cannot be realized through the method of local stirring, the energy consumption is relatively large, the stirring in the vertical direction can only be realized, and the stirring in the horizontal direction cannot be realized, and the stirring effect is not good. In order to meet the shortcomings of the above-mentioned problems, it provides an inclined water-sealed oil tank that can realize the overall stirring of the cavern by partial stirring, save energy, realize stirring in the horizontal and vertical directions at the same time, and have a good stirring effect and efficiently process the deposited oil sludge. Cave library

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