Emulsion and powder microsphere injection device and method

Abstract

The invention provides an emulsion and powder microsphere injection device and method. A liquid storage tank comprises an inner tank, a heat insulating layer and a shell, a heat tracing band is evenlywound around the outer wall of the inner tank, and the heat insulating layer is arranged between the inner tank and the shell; the inner wall of the inner tank is provided with a spoiler, and the inner tank is internally provided with a dispersing disc connected with a transmission shaft, and the transmission shaft is driven by a motor on the top of the liquid storage tank; a liquid outlet tube at the bottom of the liquid storage tank is provided with a low-pressure gate, the inlet end of a drug feeding pump is connected with the liquid outlet tube at the bottom of the liquid storage tank, and the inlet end of the drug feeding pump is provided with an input check valve; the outlet end of the drug feeding pump is connected with an output pipe which is connected to a water injection and distribution room or a water injection well opening; and an output check valve is arranged on the outlet end of the drug feeding pump, and the output tube is sequentially connected with a safety valve, apressure transmitter and a high-pressure gate; and signal lines of wires of the heat tracing band and the pressure transmitter are connected with a control cabinet which is connected with a switch ofthe drug feeding pump. The device can improve dissolution and dispersion of drugs.

Description

【Technical field】 [0001] The invention relates to an oilfield medicine stirring device, in particular to an emulsion and powder microsphere injection device and method. 【Background technique】 [0002] The polymer microspheres currently used in oilfields are all emulsion type, which is a suspension formed by dispersants, microspheres and additives. Therefore, all polymer microsphere injection devices currently in use are emulsion microsphere injection devices. Due to the presence of dispersants and auxiliary agents in emulsion microspheres, not only the cost of medicines has doubled, but also the volume, weight and packaging of medicines have also increased significantly, making the cost of medicines higher and large-scale applications limited. However, due to the lack of dispersion liquid, solid microspheres are easy to agglomerate and difficult to disperse when in contact with water. Therefore, it is difficult to directly inject powder microspheres on site. 【Content of in...

AI Technical Summary

Problems solved by technology

However, due to the presence of dispersants and additives in emulsion microspheres, not only the cost of medicines has doubled, but also the volume, weight and packaging of medicines have also increased significantly, making the cost of medicines higher and large-scale applications limited.

However, due to the lack of dispersion liquid, solid microspheres are easy to agglomerate and difficult to disperse when in contact with water. Therefore, it is difficult to inject powder microspheres directly on site.

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