Method and apparatus for mitigating environmental impact due to fluid leaks

• US 8,079,412 B2
• Filed: 03/03/2009
• Issued: 12/20/2011
• Est. Priority Date: 03/03/2008
• Status: Expired due to Fees

• Current Assignee: UR Technologies, LLC
• Original Assignee: Satellite Systems & Solutions, Inc.
• Inventors: Short, Robert
• Primary Examiner(s): Stephenson, Daniel P
• Assistant Examiner(s): WALLACE, KIPP CHARLES
• Application Number:
  US12/397,235
• Publication Number:
  US 20100059217A1
• Time in Patent Office: 1,022 Days
• Field of Search: 166/81.1, 166/75.13, 175/209, 405/52, 220/484, 220/4.02, 220/4.03, 220/212
• US Class Current: 166/81.1
• CPC Class Codes: E21B 43/0122 Collecting oil or the like from a submerged leakage cleaning or keeping clear the surface of open water from oil or the like E02B15/04
• CPC Class Codes: E21B 47/117 Detecting leaks, e.g. from tubing, by pressure testing

Abstract

Embodiments of the inventive technology may provide a leaked fluid detection and response system in one aspect, and in another aspect, an environmental enclosure for at least a component of such leaked fluid detection system. Various embodiments of the leaked fluid detection and response system may provide wireless communication of detected leaks and a PLC that automates response and provides information regarding the presence of a leak. Enclosures may, in various embodiments, comprehensively surround enclosed components, thermally insulate enclosed components, include a leaked fluid capture basin, be aerodynamically streamlined, and/or be vermin-tight.

Claims

1. An environmental enclosure for a wellhead fluid conduit comprising:

a structural enclosure adapted to surround said wellhead fluid conduit;

at least one opening through said at least one structural enclosure, said at least one opening sized to accommodate a wellhead fluid entrance conduit portion of said wellhead fluid conduit and a wellhead fluid exit conduit portion of said wellhead fluid conduit;

a leaked fluid capture basin established as a lower part of said at least one structural enclosure,

at least one sealer that seals all spatial gaps around said wellhead fluid entrance conduit portion and said wellhead fluid exit conduit portion at said at least one opening;

a visual inspection opening allowing visual inspection of enclosed components, wherein said visual inspection opening is filled by an opening filler that is removable to enable said visual inspection; and

a wellhead fluid leak detector established within said environmental enclosure;

wherein, but for said environmental enclosure, said wellhead would be exposed to an atmospheric environment,

wherein well fluid enters said environmental enclosure through said wellhead fluid entrance conduit portion and exits said environmental enclosure through said wellhead fluid exit conduit portion,

wherein a portion of said environmental enclosure abuts a ground surface underlying said environmental enclosure,

wherein said environmental enclosure is affirmatively thermally insulative so as to have a R factor of at least five,

wherein said wellhead fluid conduit comprises conduit selected from the group consisting of barren lixiviant conduit and lixiviant conduit, and

wherein said environmental enclosure is vermin tight.

2. An environmental enclosure for a wellhead fluid conduit as described in claim 1 wherein said at least one sealer comprises cured expanded polystyrene foam.

3. An environmental enclosure for a wellhead fluid conduit as described in claim 1 wherein said at least one sealer comprises an elastic shroud.

4. An environmental enclosure for a wellhead fluid conduit as described in claim 1 further comprising a wellhead fluid leak notification system that automatically generates information in the event of detection of a well head fluid leak by said wellhead fluid leak detector.

5. An environmental enclosure for a wellhead fluid conduit as described in claim 4 wherein said notification system effects a sensible indication in the event of detection of a wellhead fluid leak by said wellhead fluid leak detector.

6. An environmental enclosure for a wellhead fluid conduit as described in claim 4 wherein said information facilitates an identification of the wellhead location of said wellhead fluid leak.

7. An environmental enclosure for a wellhead fluid conduit as described in claim 1 further comprising a coating that lines said environmental enclosure.

8. An environmental enclosure for a wellhead fluid conduit comprising:

a structural enclosure adapted to surround said wellhead fluid conduit and at least one wellhead fluid leak detector; and

a vermin impenetrable floor of said structural enclosure,

at least one opening through said vermin impenetrable floor, said at least one opening sized to accommodate said wellhead fluid entrance conduit portion and said wellhead fluid exit conduit portion;

at least one sealer that seals all spatial gaps at said at least one opening;

a wellhead fluid leak notification system that effects a sensible indication in the event of detection of a wellhead fluid leak by said wellhead fluid leak detector and that automatically generates information in the event of said detection, wherein said information facilitates an identification of the wellhead location of said wellhead fluid leak;

a visual inspection opening that allows visual inspection of enclosed components, wherein said visual inspection opening is filled by a opening filler that is removable to enable said visual inspection; and

a leaked fluid capture basin established towards a lower portion of said structural enclosure,

wherein, but for said environmental enclosure, said wellhead would be exposed to an atmospheric environment,

wherein wellhead fluid enters said environmental enclosure through said wellhead fluid entrance conduit portion and exits said environmental enclosure through said wellhead fluid exit conduit portion.

wherein said environmental enclosure is affirmatively thermally insulative and has an R factor of at least five,

wherein a lower portion of said environmental enclosure is established substantially at a ground atmosphere interface and said structural enclosure does not penetrate into ground below, and

wherein said wellhead fluid conduit comprises conduit selected from the group consisting of barren lixiviant conduit and lixiviant conduit.

9. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said at least one sealer comprises cured expanded polystyrene foam.

10. (canceled;

currently amended) An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said at least one sealer comprises an elastic shroud.

11. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said structural enclosure is streamlined relative to an anticipated horizontal wind.

12. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said at least one structural enclosure is pyramidal in shape.

13. An environmental enclosure for a wellhead fluid conduit as described in claim 8 further comprising a solar panel established externally of said environmental enclosure and configured to provide power to said at least one wellhead fluid leak detector.

14. An environmental enclosure for a wellhead fluid conduit as described in claim 8 further comprising at least one water sealing jacket established around said at least one leak detector.

15. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein either said wellhead fluid entrance conduit portion of said wellhead fluid conduit or said wellhead fluid exit conduit portion of said wellhead fluid conduit comprises a well casing portion.

16. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said removable opening filler comprises a cork.

17. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said environmental enclosure is vermin tight.

18. An environmental enclosure for a wellhead fluid conduit as described in claim 8 further comprising a coating that lines said environmental enclosure.

19. An environmental enclosure for a wellhead fluid conduit as described in claim 8 wherein said vermin impenetrable floor forms at least a part of said leaked fluid capture basin.