CA2473073A1 - Vessel for well intervention - Google Patents

Vessel for well intervention Download PDF

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Publication number
CA2473073A1
CA2473073A1 CA 2473073 CA2473073A CA2473073A1 CA 2473073 A1 CA2473073 A1 CA 2473073A1 CA 2473073 CA2473073 CA 2473073 CA 2473073 A CA2473073 A CA 2473073A CA 2473073 A1 CA2473073 A1 CA 2473073A1
Authority
CA
Canada
Prior art keywords
pipeline
vessel
wellbore
drilling
continuous casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2473073
Other languages
French (fr)
Other versions
CA2473073C (en
Inventor
John Boyle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherford Lamb Inc
Original Assignee
Weatherford/Lamb, Inc.
John Boyle
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weatherford/Lamb, Inc., John Boyle filed Critical Weatherford/Lamb, Inc.
Publication of CA2473073A1 publication Critical patent/CA2473073A1/en
Application granted granted Critical
Publication of CA2473073C publication Critical patent/CA2473073C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
    • E21B7/203—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means using down-hole drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0402—Cleaning, repairing, or assembling
    • Y10T137/0441—Repairing, securing, replacing, or servicing pipe joint, valve, or tank
    • Y10T137/0458—Tapping pipe, keg, or tank

Abstract

In one aspect, a method and apparatus for intervening in an offshore pipeline while diverting fluid flow to a storage site is provided, so that production through the offshore pipeline may continue while conducting a pipeline intervention operation. An offshore vessel may be used to divert and store fluid flow while intervening in the pipeline. In another aspect, a method and apparatus for drilling a subsea wellbore with an offshore vessel is provided.
The method and apparatus involve drilling the wellbore and casing the wellbore with continuous casing lowered from the offshore vessel.

Claims (44)

1. A method of intervening in a pipeline, comprising:
providing a pipeline for transporting fluid flow from an offshore well to a location;
diverting the fluid flow to a storage site; and intervening in the pipeline.
2. The method of claim 1, wherein the well is underbalanced.
3. The method of claim 1, wherein diverting the fluid flow to the storage site comprises diverting the fluid flow to an offshore tanker.
4. The method of claim 1, wherein diverting the fluid flow to the storage site comprises inserting a tap into the pipeline and flowing the fluid flow through the tap to the storage site.
5. The method of claim 4, wherein the tap is inserted into the pipeline between the well and the storage site.
6. The method of claim 1, wherein intervening in the pipeline comprises inserting a tap into the pipeline downstream from the diversion of fluid flow to the storage site.
7. The method of claim 6, wherein coiled tubing is lowered from the storage site and inserted into the tap for intervening in the pipeline.
8. The method of claim 7, wherein the coiled tubing is lowered through a moon pool disposed in the vessel.
9. The method of claim 7, wherein the coiled tubing is lowered through a skid deck displaced to an outboard position.
10. The method of claim 1, wherein intervening in the pipeline occurs downstream with respect to initial fluid flow through the pipeline to the location from the diverting of the fluid flow to the storage site.
11. The method of claim 1, wherein intervening in the pipeline comprises removing blockage of the fluid flow within the pipeline.
12. The method of claim 11, wherein removing blockage comprises injecting acid through coiled tubing inserted in the pipeline.
13. The method of claim 11, wherein removing blockage comprises drilling into the pipeline and physically removing the blockage.
14. The method of claim 1, wherein intervening comprises removing a pig stuck in the pipeline.
15. The method of claim 1, wherein intervening comprises descaling the pipeline.
16. The method of claim 1, wherein intervening comprises removing paraffin from within the pipeline.
17. The method of claim 1, wherein intervening comprises repairing damage to the pipeline.
18. The method of claim 1, wherein the diverting and the intervening are accomplished from the same location.
19. The method of claim 18, wherein the location is an offshore tanker.
20. An apparatus for remediating an offshore pipeline and producing well fluids, comprising:
a vessel capable of storing well fluids flowing through the pipeline from a well;
a first tubular body disposed on the vessel for diverting well fluid flow from the pipeline to the vessel for storing; and a second tubular body disposed on the vessel for remediating the pipeline.
21. The apparatus of claim 20, wherein the first tubular body and the second tubular body are mounted on a superstructure above a main deck of the vessel.
22. The apparatus of claim 20, wherein the vessel is capable of diverting well fluid flow through the first tubular body while remediating the pipeline through the second tubular body.
23. The apparatus of claim 22, wherein the vessel is capable of remediating the pipeline without interruption of production of well fluids.
24. The apparatus of claim 20, wherein the first tubular body is a riser.
25. The apparatus of claim 20, wherein the second tubular body is coiled tubing.
26. The apparatus of claim 20, wherein the first tubular body is connected to a first tap inserted into the pipeline.
27. The apparatus of claim 26, wherein the second tubular body is connected to a second tap inserted into the pipeline.
28. The apparatus of claim 27, wherein the second tap is inserted into the pipeline downstream from the first tap inserted into the pipeline.
29 29. The apparatus of claim 20, wherein the vessel is capable of processing well fluids flowing through the pipeline from the well.
30. A method of drilling a subsea wellbore from a vessel, comprising:
locating the vessel, the vessel having continuous casing;
drilling the wellbore; and casing the wellbore with the continuous casing.
31. The method of claim 30, wherein drilling the wellbore comprises drilling the wellbore with the continuous casing.
32. The method of claim 31, wherein drilling the wellbore with continuous casing comprises lowering the continuous casing through a moon pool disposed within the vessel and drilling the continuous casing into a formation.
33. The method of claim 31, wherein drilling the wellbore with continuous casing comprises lowering the continuous casing through a skid deck displaced to an outboard position and drilling the continuous casing into a formation.
34. The method of claim 31, wherein the wellbore is underbalanced while drilling with the continuous casing.
35. The method of claim 31, wherein drilling the wellbore with the continuous casing comprises drilling the wellbore using an earth removal member operatively attached to a lower end of the casing.
36. The method of claim 30, further comprising receiving production fluid from the wellbore with the vessel.
37. The method of claim 30, further comprising storing production fluid from the wellbore on the vessel.
38. The method of claim 30, further comprising processing production fluid from the wellbore using processing equipment located on the vessel.
39. The method of claim 38, wherein the processing equipment and the continuous casing are within a closed loop.
40. A vessel for drilling an offshore wellbore, comprising:
a vessel;
continuous casing having an earth removal member operatively attached thereto disposed on the vessel for drilling the wellbore; and storage equipment disposed on the vessel for storing hydrocarbon fluid produced from the wellbore.
41. The vessel of claim 40, wherein the continuous casing is mounted on a superstructure above a main deck of the vessel.
42. The vessel of claim 40, wherein the continuous casing is mounted adjacent a skid deck which may be displaced to an outboard position through which the continuous casing is lowered for drilling.
43. The vessel of claim 40, wherein the continuous casing is mounted adjacent a moon pool through which the continuous casing is lowered for drilling.
44. The vessel of claim 40, further comprising fluid processing equipment coupled to the storage equipment for processing the hydrocarbon fluid.
CA2473073A 2003-07-11 2004-07-07 Vessel for well intervention Expired - Fee Related CA2473073C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/618,093 US7650944B1 (en) 2003-07-11 2003-07-11 Vessel for well intervention
US10/618,093 2003-07-11

Publications (2)

Publication Number Publication Date
CA2473073A1 true CA2473073A1 (en) 2005-01-11
CA2473073C CA2473073C (en) 2010-11-09

Family

ID=33452702

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2473073A Expired - Fee Related CA2473073C (en) 2003-07-11 2004-07-07 Vessel for well intervention

Country Status (6)

Country Link
US (1) US7650944B1 (en)
EP (1) EP1496297B1 (en)
AU (1) AU2004203054B2 (en)
BR (1) BRPI0402753B1 (en)
CA (1) CA2473073C (en)
NO (1) NO335948B1 (en)

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