Centralizer electronics housing

Patent metadata

Field	Value
Publication number	US-10794124-B2
Application number	US-201515536549-A
Country	US
Kind code	B2
Filing date	Feb 9, 2015
Priority date	Feb 9, 2015
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

A centralizer for downhole OCTG having a storage space capable of housing downhole electronics and other downhole devices, compositions and elements is disclosed. The storage space is located within an inner cavity formed in one or more of the blades making up the centralizer. A capsule is provided for protecting the contents of the items being stored within the inner cavity. The capsule may be hermetically sealed to protect the contents from the damaging effects of downhole fluids. Ports may be provided within the capsule to allow downhole electronics to be connected to sensors and other devices and components residing outside of the capsule.

First claim

What is claimed is:

1. A centralizer for downhole oil country tubular goods (OCTG), comprising:
a tubular member disposable about a first section of tubing, wherein the tubular member connects the first section of tubing to one or more other sections of tubing;
a plurality of blades disposed around an outer circumference surface of the tubular member, at least one blade of the plurality of blades having an inner cavity, wherein the at least one blade is a centralizer blade; and
a capsule disposed within the inner cavity of the at least one blade, the at least one capsule capable of storing an article for use downhole;
one or more transducers communicatively coupled to the capsule, wherein the one or more transducers are mounted in one or more channels in an outer surface of the tubular member between adjacent blades of the plurality of blades, wherein the one or more transducers are encased, and wherein the one or more transducers receive a signal from within the capsule.

2. The centralizer of claim 1 , wherein each blade of the plurality of blades having an associated inner cavity and a separate capsule disposed in each associated inner cavity.

3. The centralizer of claim 1 , wherein the plurality of blades are equally spaced around the circumferential surface of the tubular member.

4. The centralizer of claim 1 , wherein the article is selected from the group consisting of downhole electronics, downhole chemicals, MEMS devices, batteries, hydraulic control components, valves, oil chambers, downhole sensors, downhole optics, downhole fiber optics and combinations thereof.

5. The centralizer of claim 1 , wherein the article includes downhole electronics connected to the one or more transducers via at least one wire.

6. The centralizer of claim 5 , further comprising a polymer material disposed over the one or more transducers and the at least one wire to protect the one or more transducers and the at least one wire from a downhole environment.

7. A downhole apparatus, comprising:
a tubular member of a section of tubing, wherein the tubular member connects one or more sections of tubing to the section of tubing;
a plurality of blades disposed around an outer circumference surface of the tubular member, at least one blade of the plurality of blades having an inner cavity, wherein the at least one blade is a centralizer blade;
at least one capsule disposed within the inner cavity of the at least one blade;
downhole electronics contained within the at least one capsule; and
one or more transducers communicatively coupled to the capsule, wherein the one or more transducers are mounted in one or more channels in an outer surface of the tubular member between adjacent blades of the plurality of blades, wherein the one or more transducers are encased, and wherein the one or more transducers receive a signal from within the capsule.

8. The downhole apparatus of claim 7 , wherein each of the plurality of blades has an associated capsule an associated inner cavity and a separate capsule disposed in each associated inner cavity.

9. The downhole apparatus of claim 8 , wherein the downhole electronics in at least one of the capsules is capable of transmission of an acoustic signal to the downhole electronics in at least one other capsule.

10. The downhole apparatus of claim 7 , wherein the plurality of blades are equally spaced around the circumferential surface of the tubular member.

11. The downhole apparatus of claim 7 , further comprising at least one wire connecting the one or more transducers to the downhole electronics.

12. The downhole apparatus of claim 11 , further comprising a polymer material disposed over the one or more transducers and the at least one wire to protect the one or more transducers and the at least one wire from a downhole environment.

13. A capsule disposed around a circumferential surface of a tubular member of a section of tubing such that the tubular member connects one or more sections of tubing to the section of tubing, the capsule for delivering an article downhole, the capsule comprising:
a housing contained within a centralizer blade of a plurality of centralizer blades of a centralizer
an inner cavity disposed within the housing, wherein the inner cavity stores the article; and
wherein the capsule is configured to couple to one or more encased transducers mounted in one or more channels in an outer surface of the tubular member between adjacent blades of the plurality of centralizer blades, and wherein the capsule is configured to transmit one or more signals to the one or more transducers.

14. The capsule of claim 13 , further comprising a hermetically sealed chamber contained within the inner cavity.

15. The capsule of claim 14 , further comprising at least one port interfacing with the hermetically sealed chamber.

16. The capsule of claim 15 , further comprising downhole electronics disposed within the inner cavity, at least one wire passing through the at least one port for connecting the downhole electronics to at least one sensor disposed in an environment outside of the capsule which is capable of measuring downhole conditions.

17. The capsule of claim 13 , wherein the article is selected from the group consisting of downhole electronics, downhole chemicals, MEMS devices, batteries, hydraulic control components, valves, oil chambers, and downhole sensors, downhole optics, downhole fiber optics and combination thereof.

Assignees

• Halliburton Energy Services Inc

Inventors

• Roberson Mark
• Goodwin Scott
• Rogers Henry
• Budler Nicholas Frederick
• Ravi Krishna
• Skinner Neal
• Henry Kevin

Classifications

• E21B17/1078 Primary

  Stabilisers or centralisers for casing, tubing or drill pipes (E21B17/1007 - E21B17/1064 take precedence) · CPC title

• E21B17/1085

  Wear protectors; Blast joints; Hard facing · CPC title

• E21B47/017

  Protecting measuring instruments · CPC title