Process for removing oil recovery polymers from crude oil
A polymer and crude oil technology, applied in the petroleum industry, refining hydrocarbon oil, refining by filtration, etc., can solve the problems of heat exchanger efficiency decline, etc., and achieve the effects of cost reduction, easy implementation, and simple steps
Inactive Publication Date: 2017-06-23
YANGTZE UNIVERSITY
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Problems solved by technology
[0004] The present invention makes improvements to the problems existing in the above-mentioned prior art. The purpose of the present invention is to solve the problem that the efficiency of the heat exchanger is significantly reduced when the crude oil obtained by polymer flooding is demulsified and transported on the ground, and to provide a Method for Removing Oil Recovery Polymers
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[0014] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but it does not constitute a limitation of the present invention, and is only used as an example. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.
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Abstract
The present invention relates to the treatment method of crude oil, specifically a kind of method that removes oil recovery polymer from crude oil, and this method is to add barium sulfate microsphere in the crude oil under the condition of stirring, then put the crude oil mixture in the microwave oven Irradiate and then filter to obtain depolymerized crude oil from which oil recovery polymers have been removed. The object of the present invention is to provide a method for removing oil recovery polymer from crude oil to solve the problem that heat exchanger efficiency is significantly reduced when the crude oil obtained by polymer flooding is demulsified and transported on the ground. The invention not only can remove the oil recovery polymer in the crude oil, but also has simple steps and is easy to realize, and the barium sulfate microspheres used can be used repeatedly, which reduces the cost of the invention.
Description
technical field [0001] The invention relates to a crude oil treatment method, in particular to a method for removing oil recovery polymers from crude oil. Background technique [0002] Because water-soluble polymers form slugs in oil reservoirs, they can drive out crude oil in oil reservoirs under the push of pressure difference, so that oil recovery can be improved. With the increase of high water-cut oil reservoirs, hydrophobically associating water-soluble polymers have been widely used as oil recovery polymers. However, due to the hydrophobic properties of the oil recovery polymer, some residues in the crude oil will lead to the precipitation of crusts on the surface of the heater when the crude oil is demulsified and transported on the ground, resulting in a significant decrease in the efficiency of the heat exchanger. [0003] In the prior art, the traditional demulsification method requires high temperature, complicated steps, and high cost of demulsification. Cont...
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IPC IPC(8): C10G31/00C10G31/09C10G32/04
Inventor 石立红
Owner YANGTZE UNIVERSITY