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Multifunctional micro-fluidic chip and manufacturing method thereof

A microfluidic chip, multi-functional technology, applied in chemical instruments and methods, testing moving fluids/granular solids, containers for laboratory use, etc. And other issues

Active Publication Date: 2022-02-08
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many microfluidic chips for simulating the distribution of pore throats in porous media at home and abroad, but most of the existing chips are made of easy-to-process organic polymers, and a few chips made of glass have large etched channels. , which has a certain gap with the similarity of the physical properties of the formation porous media or the size of the pore throat; the existing chip design does not consider the permeability distribution of the porous media and how to integrate the injection, migration and oil displacement of the oil displacement system in the porous media chemical experiment

Method used

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  • Multifunctional micro-fluidic chip and manufacturing method thereof
  • Multifunctional micro-fluidic chip and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A multifunctional microfluidic chip, the chip including a substrate, the chip substrate, the injection module 11 and the analog simulation heterogeneous porous media module 12, the analog implanted chip module 11 and the analog heterogeneous porous media modules 12 arranged symmetrically and the lower surface of the substrate of the chip substrate, the chip substrate and the lower substrate form a multi-functional chip microfluidic chip after docking;

[0026] Injecting a first analog module 11 includes an analog fluid inlet, a second fluid inlet 2 analog, T-shaped flow path 3 analog and analog curved flow channel 4, the inlet end of the T-type analog flow path 3 is formed respectively a first analog a fluid inlet and a second fluid inlet 2 analog, analog T-3 channel inlet end an outlet end in communication with the analog-curved flow channel 4, the outlet end of simulated curved flow channel 4 via a line with a non-simulated Heterogeneous porous media communicating module ...

Embodiment 2

[0029] On the basis of the first embodiment, the analog low permeability and low permeability zone 7 comprises longitudinal lateral microchannels and hypotonic microchannel disposed vertically between low permeability and low permeability microchannel longitudinal lateral microchannels, low permeability and low lateral microchannels retentate longitudinal microchannel is formed at the intersection of a circular chamfer low permeability, low permeability chamfered circle radius 80μm.

Embodiment 3

[0031] On the basis of the second embodiment, the analog permeability region 8 comprises a microchannel and hypertonic hypertonic lateral longitudinal microchannel, the vertical permeability is provided between the microchannel and hypertonic lateral longitudinal microchannels, and a high permeability in the transverse microchannels forming a hypertonic circular chamfer at the intersection of the microchannel longitudinal retentate, hypertonic chamfered circle radius 150μm.

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Abstract

The invention provides a multifunctional micro-fluidic chip and a manufacturing method thereof. The multifunctional micro-fluidic chip comprises an upper chip substrate, a lower chip substrate, a simulation injection module and a simulation heterogeneous porous medium module, the simulation injection module and the simulation heterogeneous porous medium module are symmetrically arranged on the upper surface of the upper chip substrate and the upper surface of the lower chip substrate, and the upper chip substrate and the lower chip substrate are butted to form the multifunctional micro-fluidic chip. The chip can simulate integrated experiments of injection, migration, oil displacement and the like of a heterogeneous porous medium with double permeability level difference and a micro-scale oil displacement system.

Description

Technical field [0001] Technical Field The present invention relates to the development of oil and gas, and more particularly relates to a multifunctional micro-fluidic chip and manufacturing method thereof. Background technique [0002] Physical simulation displacement test is a direct test method for effective evaluation Flooding EOR effect, laboratory studies usually natural and artificial core experiment, since the distribution of pore throat inner core is unknown, the process is not flooding view, difficult to characterize the mechanism of flooding systems. The microfluidic chip can easily build complex fluid channels at micron scale, object transitions from analog to finer porous medium pore throat structure, mechanism of action studies from flooding systems microscale perspective, the conventional physical modeling compensate to some extent deficiencies. [0003] At present, many domestic and microfluidic chips for the pore throats of porous media distribution simulation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/00G01N21/85
CPCB01L3/5027B01L3/502707G01N21/85B01L2300/0861B01L2200/027B01L2200/10
Inventor 王成胜吴彬彬田津杰陈斌吴雅丽陈士佳阚亮张强吴晓燕刘观军李奇张军辉
Owner CHINA NAT OFFSHORE OIL CORP