Device and method for measuring wax melting rate and recovery ratio of wax remover under pressure

A wax remover and wax melting technology, which is applied in the field of devices for measuring the wax melting rate and recovery ratio of the wax remover under pressure, and can solve the problems of the experimental device that cannot measure the phase state and easily changes the wax removal rate and recovery rate of the reagent.

Active Publication Date: 2020-04-21
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0006] In order to solve the problem in the prior art that the wax removal rate and recovery rate of reagents that can easily change the phase state cannot be measured, the present invention provides a device for measuring the wax dissolution rate and recovery rate of the wax remover under pressure and its measurement method. Determination of the wax removal rate and recovery rate of the reagent whose phase state is easy to change can be determined by controlling the phase state of the reagent

Method used

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  • Device and method for measuring wax melting rate and recovery ratio of wax remover under pressure
  • Device and method for measuring wax melting rate and recovery ratio of wax remover under pressure
  • Device and method for measuring wax melting rate and recovery ratio of wax remover under pressure

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Embodiment Construction

[0050] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0051] Such as figure 1As shown, the device for measuring the wax melting rate and recovery ratio of the wax remover under pressure includes a wax melting reactor 12, a piston container A10, a piston container B24, and a recovery tank 15;

[0052] The upper part of the wax melting reactor 12 is connected with the tee A30, and the tee A30 is connected with the lower part of the piston container A10 through the needle valve O11. Connected with the lower part of the piston container B24;

[0053] The lower part of the wax melting reactor 12 is connected to the recovery tank 15 through the needle valve C14 and the tee B31 in turn;

[0054] The top of the piston container A10, the top of the piston container B24, the wax melting reactor 12, the recovery tank 15, and the top of the metering tank 27 are respectively connected to the nitrogen cylinder 1;

[005...

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Abstract

The invention relates to the field of well paraffin control and removal experimental equipment and in particular to a pressure device for determining a wax dissolution rate and a recovery rate of a wax cleaning agent and a determination method thereof. The device is mainly composed of a piston container A, a pressure-bearing wax dissolution reaction kettle, a thermostat, a piston container B, a pressure-bearing metering tank, a recovery tank and a plurality of matched valve instrument pipelines. The device is capable of realizing a wax dissolution rate test of any reagent and a recovery rate test of the reagent. The problem that the wax dissolution rate of many phase-changeable reagents that are gaseous under normal temperature and normal pressure and are liquid in an actual operating state of an oil well cannot be determined in a laboratory environment is solved.

Description

technical field [0001] The invention relates to the field of wax removal and prevention experimental equipment for oil wells, in particular to a device for measuring the wax melting rate and recovery ratio of a wax remover under pressure and a measurement method thereof. Background technique [0002] There are three major problems in the oil extraction process: sanding, scaling, and wax formation, which bring a lot of trouble to the extraction and construction of crude oil. During the production process, the waxy crude oil rises along the tubing. With the change of environmental conditions such as temperature, pressure, flow rate and water content, the paraffin molecules in the waxy crude oil will crystallize out due to the destruction of the dissolution balance, and deposit concentratedly in the tubing. on the inner wall. The deposition of paraffin on the inner wall of the oil pipe will inevitably reduce the oil flow channel, increase the flow resistance, reduce the produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 杨志刘弘博康露许富强江文博龙海庆
Owner SOUTHWEST PETROLEUM UNIV
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