GB2597019A - Improvements in or relating to well abandonment and slot recovery - Google Patents
Improvements in or relating to well abandonment and slot recovery Download PDFInfo
- Publication number
- GB2597019A GB2597019A GB2115462.0A GB202115462A GB2597019A GB 2597019 A GB2597019 A GB 2597019A GB 202115462 A GB202115462 A GB 202115462A GB 2597019 A GB2597019 A GB 2597019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- removing apparatus
- well according
- recovery assembly
- well
- jacking tool
- 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
Links
- 238000011084 recovery Methods 0.000 title claims abstract 24
- 238000004873 anchoring Methods 0.000 claims abstract 17
- 239000004020 conductor Substances 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims 12
- 230000003213 activating effect Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- 230000001186 cumulative effect Effects 0.000 claims 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/12—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground specially adapted for underwater installations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Traffic Control Systems (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
A recovery assembly which includes an anchoring device (38) and jacking tool (34) which incorporates a resetting mechanism (270). The jacking tool (34) is positioned below a cut point (22) on tubing (24) and grips the remaining tubing while the anchoring device (38) engages the apparatus above the jacking tool (34s). Operation of the jacking tool lifts the cut conductor and wellhead over a stroke length of the jacking tool. The jacking tool is re-cocked in the well so that multiple jacking operations can be carried out until hoisting equipment is capable of lifting the cut conductor and wellhead clear of the ground.
Claims (25)
1. A method for removing apparatus from a well, comprising the steps: (a) suspending a recovery assembly from a work string, the recovery assembly comprising a jacking tool and an anchoring device, the jacking tool being arranged below the anchoring device; (b) running the recovery assembly into a well to locate a gripping mechanism of the jacking tool at tubing in the well; (c) anchoring the anchoring device to the apparatus; (d) activating the jacking tool to grip the tubing; (e) activating the jacking tool to apply an upward force to the anchoring device while stroking the jacking tool so that the anchoring device and the apparatus is lifted upwards away from the jacking tool; (f) disengaging the jacking tool from the tubing; and (g) pulling the apparatus free of the well.
2. A method for removing apparatus from a well according to claim 1 wherein at step (d), the jacking tool grips the tubing below a cut point on the tubing.
A method for removing apparatus from a well according to claim 2 wherein the apparatus is a wellhead and a portion of a well conductor.
4. A method for removing apparatus from a well according to any preceding claim wherein the anchoring device is a group comprising : a casing spear and a wellhead picker.
5. A method for removing apparatus from a well according to any preceding claim wherein steps (d) to (f) are repeated after step (f) until the apparatus is free and can be pulled from the well.
6. A method for removing apparatus from a well according to any preceding claim wherein the method includes the step of resetting the jacking tool at step (f) once the jacking tool has been disengaged from the tubing.
7. A method for removing apparatus from a well according to any preceding claim wherein the method includes hoisting the work string at step (g).
8. A method for removing apparatus from a well according to any preceding claim wherein the method includes the step of cutting the tubing at the cut point.
9. A method for removing apparatus from a well according to claim 8 wherein the step of cutting the tubing is on the same trip into the well.
10. A recovery assembly for removing apparatus from a well, the recovery assembly being configured to be suspended on a work string for running into the well, the recovery assembly including : an anchoring device to attach the assembly to the apparatus for recovery thereof; a jacking tool, the jacking tool comprising : an inner mandrel having a bore and an outer housing; an anchor section including one or more slips for axially fixing the jacking tool to tubing in the well; a power section including an axially stacked plurality of pistons generating a cumulative axial force on the anchoring device, the plurality of pistons arranged between the inner mandrel and the outer housing and axially movable by a stroke length relative to the one or more slips in response to the fluid at a first pressure in the bore; and a resetting mechanism to move the plurality of pistons back across the stroke length.
11. A recovery assembly for removing apparatus from a well according to claim 10 wherein the jacking tool is arranged with the power section between the anchoring device and the anchor section.
12. A recovery assembly for removing apparatus from a well according to claim 11 wherein the anchoring device is a casing spear.
13. A recovery assembly for removing apparatus from a well according to claim 11 wherein the anchoring device is a wellhead picker.
14. A recovery assembly for removing apparatus from a well according to any one of claims 10 to 13 wherein the resetting mechanism is a re-cocking mechanism and comprises a biasing means to bias the pistons in a direction back across the stroke length.
15. A recovery assembly for removing apparatus from a well according to claim 14 wherein the biasing means is a spring is a pre compressed spring which extends when hydraulic pressure of the fluid in the bore is released.
16. A recovery assembly for removing apparatus from a well according to claim 15 wherein the spring is located between a piston and a stop in the jacking tool.
17. A recovery assembly for removing apparatus from a well according to any one of claims 10 to 14 wherein the re-cocking mechanism is located in a separate adaptor to the jacking tool.
18. A recovery assembly for removing apparatus from a well according to any one of claims 10 to 13 wherein the resetting mechanism is a chamber located between the inner mandrel and the outer housing, having access to a reverse side of a piston, and a hydraulic control line.
19. A recovery assembly for removing apparatus from a well according to any one of claims 10 to 18 wherein the plurality of pistons are arranged on the inner mandrel, with the inner mandrel axially moveable relative to the one or more slips and being connected to the anchoring device; the outer housing surrounds the inner mandrel and includes the plurality of stops, spaced apart a distance over which each piston can travel the stroke length, and the outer housing supports the anchor section.
20. A recovery assembly for removing apparatus from a well according to claim 19 wherein the anchor section is located at a lower end of the outer housing.
21. A recovery assembly for removing apparatus from a well according to claim 19 wherein the anchor section is located at an upper end of the outer housing .
22. A recovery assembly for removing apparatus from a well according to any one of claims 10 to 18 wherein the plurality of pistons are arranged on an inner wall of the outer housing, the outer housing being connected to the anchoring device and axially moveable relative to the one or more slips, the housing surrounds an inner mandrel including a plurality of stops mounted thereon, spaced apart a distance over which each piston can travel the stroke length, the inner mandrel extending from a lower end of the housing and supporting the anchor section thereon.
23. A recovery assembly for removing apparatus from a well according to any one of claims 10 to 22 wherein the assembly further includes a cutting tool.
24. A recovery assembly for removing apparatus from a well according to claim 23 wherein the cutting tool is located below the jacking tool on a distal end of the assembly .
25. A recovery assembly for removing apparatus from a well according to claim 23 wherein the cutting tool is located between the anchoring device and the jacking tool.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1906757.8A GB201906757D0 (en) | 2019-05-14 | 2019-05-14 | Improvements in or relating to well abandonment and slot recovery |
| GBGB1907280.0A GB201907280D0 (en) | 2019-05-23 | 2019-05-23 | Improvements in or relating to well abandonment and slot recovery |
| PCT/EP2020/063384 WO2020229564A1 (en) | 2019-05-14 | 2020-05-13 | Improvements in or relating to well abandonment and slot recovery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202115462D0 GB202115462D0 (en) | 2021-12-08 |
| GB2597019A true GB2597019A (en) | 2022-01-12 |
| GB2597019B GB2597019B (en) | 2023-10-25 |
Family
ID=70775345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2115462.0A Active GB2597019B (en) | 2019-05-14 | 2020-05-13 | Improvements in or relating to well abandonment and slot recovery |
Country Status (3)
| Country | Link |
|---|---|
| GB (1) | GB2597019B (en) |
| NO (1) | NO20211324A1 (en) |
| WO (1) | WO2020229564A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266289B (en) * | 2021-07-06 | 2023-09-01 | 中海石油(中国)有限公司 | Marine oil and gas well riser anti-top recovery method |
| CN114427367B (en) * | 2022-01-14 | 2023-06-23 | 中国石油大学(华东) | High-pressure abrasive jet cutting system and method in abandoned shaft of offshore oil production platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2732901A (en) * | 1956-01-31 | Davis | ||
| US2836250A (en) * | 1952-12-24 | 1958-05-27 | Cicero C Brown | Hold-down devices for well packers |
| US2915126A (en) * | 1950-01-18 | 1959-12-01 | Cicero C Brown | Hydraulic pulling tool |
| US5070941A (en) * | 1990-08-30 | 1991-12-10 | Otis Engineering Corporation | Downhole force generator |
| GB2562089A (en) * | 2017-05-04 | 2018-11-07 | Ardyne Tech Limited | Improvements in or relating to well abandonment and slot recovery |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8365826B2 (en) | 2009-08-06 | 2013-02-05 | Tiw Corporation | Hydraulically powered fishing tool and method |
| AU2015224487B2 (en) * | 2014-09-11 | 2017-04-20 | Weatherford Technology Holdings, Llc | Downhole casing pulling tool |
| US9650853B2 (en) | 2015-01-26 | 2017-05-16 | Baker Hughes Incorporated | Downhole cutting and jacking system |
| EP3779118A1 (en) | 2016-11-04 | 2021-02-17 | Ardyne Holdings Limited | Method of removing a downhole casing |
-
2020
- 2020-05-13 NO NO20211324A patent/NO20211324A1/en unknown
- 2020-05-13 GB GB2115462.0A patent/GB2597019B/en active Active
- 2020-05-13 WO PCT/EP2020/063384 patent/WO2020229564A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2732901A (en) * | 1956-01-31 | Davis | ||
| US2915126A (en) * | 1950-01-18 | 1959-12-01 | Cicero C Brown | Hydraulic pulling tool |
| US2836250A (en) * | 1952-12-24 | 1958-05-27 | Cicero C Brown | Hold-down devices for well packers |
| US5070941A (en) * | 1990-08-30 | 1991-12-10 | Otis Engineering Corporation | Downhole force generator |
| GB2562089A (en) * | 2017-05-04 | 2018-11-07 | Ardyne Tech Limited | Improvements in or relating to well abandonment and slot recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020229564A1 (en) | 2020-11-19 |
| GB2597019B (en) | 2023-10-25 |
| NO20211324A1 (en) | 2021-11-03 |
| GB202115462D0 (en) | 2021-12-08 |
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