Shaker imaging and analysis

• US 10,643,322 B2
• Filed: 10/12/2016
• Issued: 05/05/2020
• Est. Priority Date: 10/12/2015
• Status: Active Grant

• Current Assignee: M-I LLC (Schlumberger NV)
• Original Assignee: M-I LLC (Schlumberger NV)
• Inventors: Holton, Benjamin Lanning, Stewart, Colin, Ligertwood, Brian Neil
• Primary Examiner(s): Jo, Taeho
• Application Number:
  US15/767,342
• Publication Number:
  US 20190266717A1
• Time in Patent Office: 1,301 Days
• Field of Search: 2503381
• CPC Class Codes: B01D 33/015 with flat filtering elements
• CPC Class Codes: B01D 33/804 integrally combined with devices for controlling the filtration
• CPC Class Codes: E21B 21/065 Separating solids from drilling fluids
• CPC Class Codes: G01B 11/022 by means of tv-camera scanning
• CPC Class Codes: G01F 23/292 Light , e.g. infrared or ultraviolet
• CPC Class Codes: G01N 21/95 characterised by the material or shape of the object to be examined G01N21/89 - G01N21/91, G01N21/94 take precedence
• CPC Class Codes: G06T 2207/10048 Infrared image
• CPC Class Codes: G06T 2207/30108 Industrial image inspection
• CPC Class Codes: G06T 2207/30204 Marker
• CPC Class Codes: G06T 7/0004 Industrial image inspection
• CPC Class Codes: G06T 7/246 using feature-based methods, e.g. the tracking of corners or segments
• CPC Class Codes: G06T 7/73 using feature-based methods

Abstract

This disclosure is generally drawn to systems, devices, apparatuses, and/or methods, related to monitoring a shaker used for separating solids from fluid. Specifically, the disclosed systems, devices, apparatuses, and/or methods relate to capturing infrared images of a shaker or components thereof (e.g., shaker baskets, decks, screens) and performing actions on the shaker, its components, and/or the its operation based at least in part on the captured infrared images.

Claims

1. A device for monitoring a shaker having a screen, comprising:

an infrared imaging device providing an image output corresponding to infrared emissions of an area being imaged, the infrared imaging device being operatively coupled to the shaker; and

a computing device including a display that displays the image output, the computing device being communicatively coupled to the imaging device;

wherein the area being imaged is a portion of the screen, the screen having an accumulation of one or more of solids and liquids disposed thereon;

wherein the computing device measures a drip length of a solid as the solid exits the screen; and

wherein the computing device determines the moisture content of the solids based on the measured drip length.

2. The device of claim 1, wherein the image output is displayed in a plurality of colors in the visible light spectrum, wherein the colors correspond to the infrared emissions of the area being imaged.

3. The device of claim 1, wherein the image output is displayed in a greyscale, wherein a variation of grey colors corresponds to the infrared emissions of the area being imaged.

4. The device of claim 1, further comprising a displacement tag coupled to the screen, wherein the displacement tag is uniquely visible to the infrared imaging device.

5. The device of claim 4, wherein:

the area being imaged includes the displacement tag;

when the shaker is in operation, the computing device plots a motion pattern of the screen by plotting the location of the displacement tag within the area being imaged over a time period; and

if the computing device plots an abnormal motion pattern, the computing device at least one of generates an alarm and adjusts the operation of the shaker to adjust the motion of the screen.

6. The device of claim 1,

wherein the solids and liquids have variations in temperatures;

and

wherein the infrared emissions of the area being imaged are measured in wavelengths and correspond to relative temperatures of a portion of the area being imaged.

7. The device of claim 1, wherein the area being imaged includes a beach point of solids and liquids on the screen, and wherein the beach point is identified by a difference of colors on the image output.

8. The device of claim 7, wherein the computing device monitors a length of the beach point and generates an alert when the beach point reaches a predetermined length.

9. The device of claim 1, wherein the fluid level of a fluid disposed on the screen is measured by positioning the infrared imaging device to provide the image output through a sidewall of a screen deck of the shaker.

10. The device of claim 9, wherein a blinding level of the screen is calculated by measuring the fluid level.

11. The device of claim 1, further comprising:

an air blower positioned below the screen and configured to blow air against the underside of the screen, the air having a temperature differing from a temperature of the screen;

wherein a defect in the screen is visible on the image output.

12. The device of claim 11,

wherein the defect is one of a hole and a tear;

wherein the image output indicates the temperature of the air from the air blower as a first color and the temperature of the screen as a second color; and

wherein the defect appears in the first color and the screen appears in the second color.

13. The device of claim 1,

wherein the imaged area is a portion of the shaker known to be susceptible to mechanical stress;

wherein a stress point, when the portion of the shaker is under abnormal mechanical stress, emits infrared light of a different wavelength than the surrounding area, and wherein the computing device triggers an alert when the image output indicates the stress point under abnormal mechanical stress.

14. A method of monitoring a shaker having a screen, the method comprising:

positioning an infrared imaging device adjacent the shaker, the infrared imaging device generating an infrared image of at least a portion of the shaker;

monitoring, by the infrared imaging device, a screen in the shaker, the screen having an accumulation of one or more of solids and liquids disposed thereon;

measuring, by a computing device communicatively coupled to the infrared imaging device, a drip length of a solid as the solid exits the screen; and

determining, by the computing device, the moisture content of the solids based on the measured drip length.

15. The method of claim 14,

wherein the solids and liquids have variations in temperatures;

and

wherein infrared emissions of the solids and liquids are measured in wavelengths that correspond to relative temperatures of the solids and liquids disposed on the screen.

16. The method of claim 14, further comprising:

outputting the infrared image as a plurality of colors in the visible light spectrum, wherein the colors correspond to infrared emissions of the at least the portion of the shaker being imaged.

17. The method of claim 14, further comprising:

identifying an abnormal condition of the screen or the shaker based on a difference of colors on the infrared image.

18. The method of claim 17, further comprising at least one of:

generating an alarm in the presence of an abnormal condition of the screen or the shaker; and

adjusting the operation of the shaker in the presence of the abnormal condition of the screen or the shaker.

19. The method of claim 14, wherein monitoring, by the infrared imaging device, the screen in the shaker further comprises:

identifying a property of one or more of the shaker, the screen, solids disposed on the screen, and liquids disposed on the screen, the property being one of a temperature, a structural abnormality, and an operational condition.