Integrated sediment and water analysis device and method

Patent metadata

Field	Value
Publication number	US-10067091-B2
Application number	US-201615224136-A
Country	US
Kind code	B2
Filing date	Jul 29, 2016
Priority date	Jul 29, 2016
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

Provided herein are methods and devices for determining water and sediment content in a hydrocarbon fluid sample. The methods and devices for determining water and sediment content in a hydrocarbon fluid sample include a Karl Fischer titration device and a titration vessel configured to implement a Karl Fischer titration and an ultrasonic particle detector configured to identify sediment in the hydrocarbon fluid sample.

First claim

What is claimed is:

1. A method for determining water and sediment content in a hydrocarbon fluid sample, the method comprising:
integrating a weigh scale with a Karl Fischer titration device and a titration vessel configured to implement a Karl Fischer titration method;
integrating an ultrasonic particle detector with the Karl Fischer titration device, the ultrasonic particle detector configured to identify sediment in the hydrocarbon fluid sample;
determining, by the weigh scale, the weight of the hydrocarbon fluid sample;
performing, by the Karl Fischer titration device, the Karl Fischer titration method on the hydrocarbon fluid sample to determine the water content in the hydrocarbon fluid sample; and
identifying, by the ultrasonic particle detector, the sediment content in the hydrocarbon fluid sample.

2. The method of claim 1 , wherein the Karl Fischer titration device comprises (i) a generator electrode for generating I 2 , wherein the generator electrode extends at least partially into the titration vessel and (ii) an indicator electrode for measuring electrical current, wherein the indicator electrode extends at least partially into the titration vessel,
wherein the Karl Fischer titration is performed using the generator electrode and indicator electrode.

3. The method of claim 2 , wherein the titration vessel comprises a lid, wherein the lid comprises a surface that defines a first aperture, a second aperture, and a third aperture, and wherein (i) the generator electrode for generating I 2 extends at least partially into the titration vessel through the first aperture; (ii) the indicator electrode for measuring electrical current extends at least partially into the titration vessel through the second aperture; and (iii) the ultrasonic particle detector for identifying sediment extends at least partially into the titration vessel through the third aperture.

4. The method of claim 3 , wherein the lid further comprises an injection cap comprising a septum and the method further comprises injecting the hydrocarbon sample into the titration vessel through the septum of the injection cap.

5. The method of claim 4 , wherein the surface of the lid further defines a fourth aperture and wherein an insertion mixer extends at least partially into the titration vessel through the fourth aperture, wherein the insertion mixer mixes the hydrocarbon fluid.

6. The method of claim 5 , wherein the surface of the lid further defines a fifth aperture and wherein a solvent fill line and a solvent waste line extend at least partially into the titration vessel through the fifth aperture.

7. The method of claim 6 , wherein the first aperture is surrounded by a first probe seal comprised of a material that is essentially frictionless with regard to the generator electrode, wherein the second aperture is surrounded by a second probe seal that comprised of a material that is essentially frictionless with regard to the indicator electrode, and wherein the third aperture is surrounded by a third probe seal comprised of a material that is essentially frictionless with regard to the ultrasonic particle detector, the first, second, and third probe seals permitting the generator electrode, indicator electrode, and ultrasonic particle detector to move vertically relative to the vessel.

8. The method of claim 7 , wherein the first, second, and third probe seals are ferrofluidic seals.

9. The method of claim 2 , wherein a cathode solution is contained within the generator electrode.

10. The method of claim 1 , further comprising enclosing the weigh scale, the Karl Fischer titration device, the titration vessel, and ultrasonic particle detector within a housing support unit.

11. The method of claim 10 , wherein the titration vessel comprises a lid, wherein the lid comprises a surface that defines a first aperture, a second aperture, and a third aperture, and a top surface of the housing support unit defines a first, second, and third aperture that correspond to the first, second, and third apertures defined in the surface of the lid, respectively, and
wherein a generator electrode, an indicator electrode, and the ultrasonic particle detector extend at least partially through the corresponding first, second, and third apertures of the housing support unit.

12. The method of claim 11 , wherein the surface of the lid further defines a fourth aperture and the top surface of the housing support unit further defines a fourth aperture that corresponds to the fourth aperture defined in the surface of the lid, and wherein an insertion mixer extends at least partially through the fourth aperture of the top surface of the housing support unit.

13. The method of claim 12 , wherein the surface of the lid further defines a fifth aperture and the top surface of the housing support unit further defines a fifth aperture that corresponds to the fifth aperture defined in the surface of the lid, and wherein a solvent fill line and a solvent waste line extend at least partially through the fifth aperture of the top surface of the housing support unit.

14. The method of claim 1 , wherein the weigh scale is an analytical balance.

15. The method of claim 1 , wherein the Karl Fischer titration method is a coulometric titration method.

16. The method of claim 1 , wherein an anode solution is contained in the titration vessel.

17. A method for determining water and sediment content in a hydrocarbon fluid sample using an integrated Karl Fischer-ultrasonic particle detector device (KF-UPD device), wherein the KF-UPD device comprises a weigh scale, a Karl Fischer titration device, a titration vessel, and an ultrasonic particle detector, wherein the titration vessel is in contact with upper surface of the weigh scale, the Karl Fischer titration device is capable of being at least partially inserted into the titration vessel, and the ultrasonic particle detector is capable of being at least partially inserted into the titration vessel,
the method comprising:
introducing the hydrocarbon fluid sample into the titration vessel;
determining the weight of the hydrocarbon fluid sample in the titration vessel;
determining, by the Karl Fischer titration device, the water content of the hydrocarbon fluid sample; and
identifying, by the ultrasonic particle detector, the sediment content within the hydrocarbon fluid sample in the titration vessel.

18. An integrated Karl Fischer-ultrasonic particle detector device (KF-UPD device), the KF-UPD device comprising:
a weigh scale;
a Karl Fischer titration device;
a titration vessel; and
an ultrasonic particle detector,
wherein the titration vessel is in contact with an upper surface of the weigh scale, the Karl Fischer titration device is capable of being at least partially inserted into the titration vessel, and the ultrasonic particle detector is capable of being at least partially inserted into the titration vessel.

19. The KF-UPD device of claim 18 , wherein the Karl-Fischer titration device comprises a generator electrode for generating I 2 and an indicator electrode for measuring electrical current.

20. The KF-UPD device of claim 19 , wherein the titration vessel comprises a lid, wherein the lid comprises a surface that defines a first aperture, a second aperture, and a third aperture, and wherein (i) the generator electrode extends at least partially into the titration vessel through the first aperture; (ii) the indicator electrode extends at least partially into the titration vessel through the second aperture; and (iii) th

Assignees

• Saudi Arabian Oil Co

Inventors

• Hassell Jr James Clyde
• Do Val Luis Gustavo

Classifications

• G01N15/04

  Investigating sedimentation of particle suspensions · CPC title

• G01N2015/0053

  in liquids, e.g. trouble · CPC title

• G01N31/168

  Determining water content by using Karl Fischer reagent · CPC title

• G01N33/2823

  Raw oil, drilling fluid or polyphasic mixtures · CPC title

• G01N2291/02416

  Solids in liquids · CPC title