Thin-layer spectroelectrochemical cell for use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-9678244-B2
Application number	US-201514894724-A
Country	US
Kind code	B2
Filing date	Feb 20, 2015
Priority date	Feb 20, 2015
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

Apparatus, methods, and systems related to a spectroelectrochemical cell apparatus including a cell body that has a first volume, a transparent sample window defined in the cell body, the transparent sample window defining an optical path through the cell body and having a second volume, a working electrode extending through the cell body and into the transparent sample window in the optical path, a counter electrode extending through the cell body, a reference electrode extending through the cell body, a sample inlet extending through the cell body, a solvent inlet extending through the cell body, an electrolyte inlet extending through the cell body, an ionic fluid inlet extending through the cell body, a detection species inlet extending through the cell body, a fluid outlet extending through the cell body, and a fluid mixer located within the cell body.

First claim

The invention claimed is:

1. A spectroelectrochemical cell comprising:
a cell body that has a first volume;
a transparent sample window defined in the cell body and in fluid communication therewith, the transparent sample window defining an optical path through the cell body and having a second volume;
a working electrode extending through the cell body and into the transparent sample window in the optical path, the working electrode electrically coupled to a working electrical wire lead at a first end thereof;
a counter electrode extending through the cell body, the counter electrode electrically coupled to a counter electrical wire lead at a first end thereof;
a reference electrode extending through the cell body, the reference electrode electrically coupled to a reference electrical wire lead at a first end thereof;
a sample inlet extending through the cell body;
a solvent inlet extending through the cell body;
an electrolyte inlet extending through the cell body;
an ionic fluid inlet extending through the cell body;
a detection species inlet extending through the cell body;
a fluid outlet extending through the cell body; and
a fluid mixer located within the cell body, the fluid mixer selected from the group consisting of a magnetic mixer, a sonic mixer, a mechanical mixer, and any combination thereof.

2. The spectroelectrochemical cell of claim 1 , wherein a second end of the working electrical wire lead, a second end of the counter electrical wire lead, and a second end of the reference electrical wire lead are each electrically coupled to a potentiostat.

3. The spectroelectrochemical cell of claim 1 , wherein the cell body is composed of a material selected from the group consisting of poly(ether ketone), poly(ether ether ketone), poly(ether ketone ketone), poly(ether ether ketone ketone), poly(ether ketone ether ketone ketone), poly(methyl methacrylate), polyethylene, polypropylene, polystyrene, polyvinyl chloride, polytetrafluoroethylene, polycarbonate, polybenzimidazole, a corrosion resistant metal, a metal alloy, a superalloy, and any combination thereof.

4. The spectroelectrochemical cell of claim 1 , wherein the transparent sample window is composed of a material selected from the group consisting of glass, quartz, sapphire, fused quartz, aluminum oxide, and any combination thereof.

5. The spectroelectrochemical cell of claim 1 , wherein the first volume of the cell body is in the range of about 0.02 ml to about 5000 ml.

6. The spectroelectrochemical cell of claim 1 , wherein the second volume of the transparent sample window is in the range of about 0.01 ml to about 1.0 ml.

7. The spectroelectrochemical cell of claim 1 , wherein the working electrode and the counter electrode are each composed of an identical or different electrochemically inert material.

8. The spectroelectrochemical cell of claim 7 , wherein the electrochemically inert material is selected from the group consisting of an inert metal, an inert carbon, a transparent conducting film, and any combination thereof.

9. The spectroelectrochemical cell of claim 1 , wherein the working electrode is at least partially coated with a detection species.

10. The spectroelectrochemical cell of claim 1 , wherein the reference electrode is an aqueous reference electrode, a non-aqueous reference electrode, a pseudo-reference electrode, or a platinum wire electrode.

11. The spectroelectrochemical cell of claim 1 , wherein an electrode selected from the group consisting of the working electrode, the counter electrode, the reference electrode, and any combination thereof is at least partially coated with a functional coating of nano-gold particles.

12. An apparatus comprising:
a spectroelectrochemical cell including:
a cell body that has a first volume,
a transparent sample window defined in the cell body and in fluid communication therewith, the transparent sample window defining an optical path through the cell body and having a second volume,
a working electrode extending through the cell body and into the transparent sample window in the optical path, the working electrode electrically coupled to a working electrical wire lead at a first end thereof,
a counter electrode extending through the cell body, the counter electrode electrically coupled to a counter electrical wire lead at a first end thereof,
a reference electrode extending through the cell body, the reference electrode electrically coupled to a reference electrical wire lead at a first end thereof,
a sample inlet extending through the cell body,
a solvent inlet extending through the cell body,
an electrolyte inlet extending through the cell body,
an ionic fluid inlet extending through the cell body,
a detection species inlet extending through the cell body,
a fluid outlet extending through the cell body, and
a fluid mixer located within the cell body, the fluid mixer selected from the group consisting of a magnetic mixer, a sonic mixer, a mechanical mixer, and any combination thereof;

an electromagnetic radiation source that emits electromagnetic radiation into the optical path through the transparent window, wherein the electromagnetic radiation optically interacts with a transparent window sample to generate modified electromagnetic radiation; and
a detector that receives the modified electromagnetic radiation to generate an output signal, the output signal corresponding to a characteristic of the sample.

13. The apparatus of claim 12 , wherein the electromagnetic radiation source is a single-wavelength source, a multi-wavelength source, a full spectrum wavelength source, and any combination thereof.

14. The apparatus of claim 12 , wherein the electromagnetic radiation source is selected from the group consisting of a light bulb, a light emitting device, a laser, a blackbody, a photonic crystal, and any combination thereof.

15. The apparatus of claim 12 , wherein the electromagnetic radiation is selected from the group consisting of infrared radiation, near-infrared radiation, visible light, ultraviolet light, and any combination thereof.

16. The apparatus of claim 12 , wherein the optical path between the electromagnetic radiation source and the detector is a length in the range of about 1 mm to about 10 mm.

17. The apparatus of claim 12 , wherein the detector is a photodetector.

18. The apparatus of claim 12 , wherein the output signal is selected from the group consisting of a voltammetry signal, an electromagnetic radiation absorption spectroscopy signal, and any combination thereof.

19. The apparatus of claim 12 , wherein the output signal is graphically displayed.

20. A spectroelectrochemical cell comprising:
a cell body that has a first volume;
a transparent sample window defined in the cell body and in fluid communication therewith, the transparent sample window defining an optical path through the cell body and having a second volume;
a working electrode extending through the cell body and into the transparent sample window in the optical path, the working electrode electrically coupled to a working electrical wire lead at a first end thereof;
a counter electrode extending through the cell body, the counter electrode electrically coupled to a counter electrical wire lead at a first end thereof;
a reference electrode extending through the cell body, the reference electrode electrically coupled to a reference electrical wire lead at a first end thereof;
a sample inlet extending through the cell body;
a solvent inlet extending through the cell b

Assignees

• Halliburton Energy Services Inc

Inventors

• Shen Jing
• Zhang Wei

Classifications

• G01N27/26

  by investigating electrochemical variables; by using electrolysis or electrophoresis · CPC title

• G01V11/002 Primary

  Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant (means for transmitting well survey signals E21B47/12; signal transmission systems in general G08C; transmission in general H04B) · CPC title

• G01N27/30

  Electrodes, e.g. test electrodes; Half-cells (G01N27/414 takes precedence) · CPC title

• G01N2021/1721

  Electromodulation · CPC title

• G01N21/17 Primary

  Systems in which incident light is modified in accordance with the properties of the material investigated (where the material investigated is optically excited causing a change in wavelength of the incident light G01N21/63) · CPC title