Cleaning device and method for simulated rock core used in laboratory experiment of microbial flooding physical simulation

A technology of microbial flooding and simulating cores, which is applied in the direction of using liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc. Cleaning efficiency and cleaning effect, avoiding environmental pollution, and the effect of convenient operation

Active Publication Date: 2017-01-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this cleaning method are: (1) the soaking time required by the static soaking method is long; (2) the cleaning agent generally contains organic solvents, and during the scrubbing process of the experimenters, the volatilization of the organic solvents threatens the health of the experimenters; (3) The cleaning agent and the waste water after washing are directly discharged, causing environmental pollution; (4) The time required for cleaning is long and the efficiency is low

Method used

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  • Cleaning device and method for simulated rock core used in laboratory experiment of microbial flooding physical simulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Utilize the present invention to carry out one-time automatic cleaning to three groups of simulated rock cores in the physical simulation experiment of microbial oil displacement, and the specific steps are as follows:

[0050] (1) Preliminary preparation stage

[0051] First remove the plugs at both ends of the 3 sets of experimental simulated cores, use the simulated core removal device to remove the quartz sand and crude oil in the simulated cores, fix the simulated cores on the simulated core holder, and the distance between the jet nozzle and the right opening of the simulated core 0.5cm, close the top cover of the immersion cleaning tank.

[0052] (2) Static soaking stage

[0053] Turn on the circulation pump and pump the petroleum ether in the cleaning agent storage tank into the immersion cleaning pool at a constant speed. The liquid level of petroleum ether in the immersion cleaning pool is 15cm. The time is 10 minutes.

[0054] (3) Shock soaking stage

[0...

Embodiment 2

[0063] Using the present invention to carry out one-time automatic cleaning of 6 groups of simulated rock cores in the physical simulation experiment of microbial oil displacement, the specific steps are as follows:

[0064] (1) Preliminary preparation stage

[0065] First remove the plugs at both ends of the 6 groups of experimental simulated cores, use the simulated core removal device to remove the quartz sand and crude oil in the simulated cores, fix the simulated cores on the simulated core holding device, and the distance between the jet nozzle and the right opening of the simulated core 1.0cm, close the top cover of the immersion cleaning tank.

[0066] (2) Static soaking stage

[0067] Turn on the circulation pump and pump the petroleum ether in the cleaning agent storage tank into the immersion cleaning pool at a constant speed. The liquid level of petroleum ether in the immersion cleaning pool is 20cm. The time is 15 minutes.

[0068] (3) Shock soaking stage

[0...

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Abstract

The invention discloses a device for cleaning a simulation rock core for an indoor experiment. The device comprises a control unit, a soaking cleaning unit, a cleaning agent cyclic utilization unit and a flushing water cyclic utilization unit, wherein the control unit is connected with each of the soaking cleaning unit, the cleaning agent cyclic utilization unit and the flushing water cyclic utilization unit; the cleaning agent cyclic utilization unit and the flushing water cyclic utilization unit are respectively connected with the soaking cleaning unit. The method for cleaning the simulation rock core for the indoor experiment comprises the steps: fixing the simulation rock core; stopping soaking and performing oscillation soaking; performing ultrasonic cleaning and oscillation cleaning; treating with a cleaning agent; performing high-pressure flushing; processing flushing solution; drying the simulation rock core; taking out the simulation rock core. The device and the method have the characteristics of reasonable design, simple structure, stable operation, time and labor conservation, high automation degree, good cleaning effect and environment protection; therefore, the device and the method can be widely applied to the cleaning of experimental simulation rock core.

Description

[0001] 1. Technical field [0002] The invention relates to a cleaning device, in particular to a cleaning device and method for simulated rock cores used in laboratory experiments of microbial oil displacement physical simulation. [0003] 2. Background technology [0004] During the physical simulation experiments of tertiary oil recovery and microbial flooding, simulated rock cores of various specifications and types are used. After the experiment, the residual crude oil and quartz sand on the inner wall of the simulated cores need to be cleaned. At present, the manual cleaning method is mainly used. Firstly, the simulated rock core is filled with cleaning agent and soaked statically, then manually scrubbed, and finally rinsed with clean water. The disadvantages of this cleaning method are: (1) the soaking time required by the static soaking method is long; (2) the cleaning agent generally contains organic solvents, and during the scrubbing process of the experimenters, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B3/02B08B3/08B08B3/10B08B3/12B08B13/00
CPCB08B3/02B08B3/08B08B3/10B08B3/12B08B13/00
Inventor 曹嫣镔李彩风徐鹏冯云郭辽原徐登霆王刚杜春安潘永强徐闯
Owner CHINA PETROLEUM & CHEM CORP
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