CA2638731A1 - Hydraulic running tool assembly and method of its use - Google Patents
Hydraulic running tool assembly and method of its use Download PDFInfo
- Publication number
- CA2638731A1 CA2638731A1 CA 2638731 CA2638731A CA2638731A1 CA 2638731 A1 CA2638731 A1 CA 2638731A1 CA 2638731 CA2638731 CA 2638731 CA 2638731 A CA2638731 A CA 2638731A CA 2638731 A1 CA2638731 A1 CA 2638731A1
- Authority
- CA
- Canada
- Prior art keywords
- assembly
- top sub
- liner hanger
- lock piston
- downhole
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
An assembly for downhole equipment deployment comprising a liner hanger, means for attachment of the liner hanger to deployable equipment, a top sub insertable into the liner hanger and attachable to a tubing string, a lock piston releasably connectable to the top sub, lock pins insertable through the top sub, the liner hanger, and the lock piston, and means for remotely releasing the liner hanger and associated equipment from the top sub and the lock piston. A
method of operating a running tool assembly for deploying downhole equipment from the surface, comprising assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly, attaching the assembly to a tubing string, inserting the assembly into a hole to a desired depth, and either: a) dropping an activation ball internal to the bore of the assembly; pumping hydraulic fluid into the annular bore of the assembly; allowing build up of pressure thereby overcoming the plurality of shear screws;
releasing the liner hanger from the top sub; and retrieving the top sub assembly partition from the liner hanger out of the hole; or b) manipulation of the tubing string by means of left-hand rotation;
release of the liner hanger from the top sub thereby overcoming the plurality of shear screws; and retrieving the top sub assembly partition from the liner hanger out of the hole.
method of operating a running tool assembly for deploying downhole equipment from the surface, comprising assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly, attaching the assembly to a tubing string, inserting the assembly into a hole to a desired depth, and either: a) dropping an activation ball internal to the bore of the assembly; pumping hydraulic fluid into the annular bore of the assembly; allowing build up of pressure thereby overcoming the plurality of shear screws;
releasing the liner hanger from the top sub; and retrieving the top sub assembly partition from the liner hanger out of the hole; or b) manipulation of the tubing string by means of left-hand rotation;
release of the liner hanger from the top sub thereby overcoming the plurality of shear screws; and retrieving the top sub assembly partition from the liner hanger out of the hole.
Claims (20)
1. An assembly for downhole equipment deployment, comprising:
a liner hanger having a wall and a bore, a plurality of pin holes through the wall equidistant from the uphole end of the liner hanger, and means for attachment of the downhole end of the liner hanger to the uphole end of deployable equipment;
a top sub having a wall, a throat section at its downhole end and a plurality of pin holes through the wall in the throat section, the pin holes alignable with the corresponding pin holes of the liner hanger, the downhole end of the top sub insertable into the uphole end of the liner hanger, and the uphole end of the top sub attachable to the downhole end of a string by top sub string attachment means;
a lock piston having at its downhole end a plurality of collet fingers with a slot defined between each pair of adjacent collet fingers, the downhole end of each slot having a pin entrance with a first width greater than the width of the remainder of the slot, each of the pin entrances alignable with corresponding pin holes of the top sub and liner hanger, the lock piston insertable into the throat section of the top sub with the collet fingers oriented downhole, wherein the circumference of the lock piston at the position of the pin entrances is greater than its circumference at the position of the uphole end of the slot;
a plurality of lock pins, insertable through the pin holes of the top sub, the pin holes of the liner hanger, and the pin entrances of the slots of the lock piston;
means for releasably connecting the top sub and the lock piston; and means for remotely releasing the liner hanger from the top sub and the lock piston.
a liner hanger having a wall and a bore, a plurality of pin holes through the wall equidistant from the uphole end of the liner hanger, and means for attachment of the downhole end of the liner hanger to the uphole end of deployable equipment;
a top sub having a wall, a throat section at its downhole end and a plurality of pin holes through the wall in the throat section, the pin holes alignable with the corresponding pin holes of the liner hanger, the downhole end of the top sub insertable into the uphole end of the liner hanger, and the uphole end of the top sub attachable to the downhole end of a string by top sub string attachment means;
a lock piston having at its downhole end a plurality of collet fingers with a slot defined between each pair of adjacent collet fingers, the downhole end of each slot having a pin entrance with a first width greater than the width of the remainder of the slot, each of the pin entrances alignable with corresponding pin holes of the top sub and liner hanger, the lock piston insertable into the throat section of the top sub with the collet fingers oriented downhole, wherein the circumference of the lock piston at the position of the pin entrances is greater than its circumference at the position of the uphole end of the slot;
a plurality of lock pins, insertable through the pin holes of the top sub, the pin holes of the liner hanger, and the pin entrances of the slots of the lock piston;
means for releasably connecting the top sub and the lock piston; and means for remotely releasing the liner hanger from the top sub and the lock piston.
2. The assembly of claim 1 wherein the means for releasably connecting the top sub and the lock piston comprise a plurality of screw holes through the outer wall of the liner hanger, a plurality of corresponding screw holes in the outer surface of the lock piston, and a plurality of shearable screws insertable through the screw holes of the top sub into the screw holes of the lock piston.
3. The assembly of claim 2, wherein the shearable screws are manufactured of brass.
4. The assembly of claim 1 wherein the diameter of the bore is between 4.068 inches and 7.983 inches.
5. The assembly of claim 3 wherein the diameter of the bore is between 4.535 inches and
6.337 inches.
6. The assembly of claim 1 wherein the plurality of pin holes in the liner hanger and the top sub comprises four pin holes.
6. The assembly of claim 1 wherein the plurality of pin holes in the liner hanger and the top sub comprises four pin holes.
7. The assembly of claim 1 wherein the means for attachment of the downhole end of the liner hanger to the uphole end of deployable equipment is any attachment means, including a threaded male (pin) connection means.
8. The assembly of claim 1 wherein the top sub string attachment means comprise any attachment means, including a threaded female (box) connection means.
9. The assembly of claim 1 wherein the plurality of collet fingers comprises four collet fingers.
10. The assembly of claim 1 wherein the downhole ends of the collet fingers of the lock piston join to form an annular downhole lock piston terminus.
11. The assembly of claim 1 wherein the means for remotely releasing the liner hanger from the top sub and the lock piston comprises mechanical means.
12. The assembly of claim 1 wherein the mechanical means for remotely releasing the liner hanger from the top sub and the lock piston comprises a mechanical activation component disposed between the uphole end of the top sub and the downhole end of the string, the mechanical activation component threadably insertable into the top sub to effect release of the lock piston from the top sub.
13. The assembly of claim 11 wherein the means for remotely releasing the liner hanger from the top sub and the lock piston comprises hydraulic means.
14. The assembly of claim 12 wherein the top sub further comprises at least one hydraulic fluid drain disposed in a position which is downhole of the uphole end of the lock piston when the lock piston is in a pre-activation position, and uphole of the uphole end of the lock piston when the lock piston is substantially in an activated position;
the hydraulic activation means comprises an activation ball disposable into the hole to a position in proximity to the uphole end of the lock piston; and a supply of pressurized hydraulic fluid for seating the ball in the mouth of the lock piston.
the hydraulic activation means comprises an activation ball disposable into the hole to a position in proximity to the uphole end of the lock piston; and a supply of pressurized hydraulic fluid for seating the ball in the mouth of the lock piston.
15. A method of operating a running tool assembly for deploying downhole equipment from the surface, comprising the following steps:
assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly;
attaching the assembly to a tubing string;
inserting the assembly into a selected hole to a desired depth;
dropping an activation ball downhole;
pumping hydraulic fluid from the surface to seat the ball, increase annulus string pressure, shear screws holding the lock piston to the top sub, drive the lock piston into the liner hanger, and retract the lock pins holding the liner hanger to the top sub;
retrieving the assembly apart from the liner hanger by pulling the tubing string out of the hole.
assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly;
attaching the assembly to a tubing string;
inserting the assembly into a selected hole to a desired depth;
dropping an activation ball downhole;
pumping hydraulic fluid from the surface to seat the ball, increase annulus string pressure, shear screws holding the lock piston to the top sub, drive the lock piston into the liner hanger, and retract the lock pins holding the liner hanger to the top sub;
retrieving the assembly apart from the liner hanger by pulling the tubing string out of the hole.
16. The method of operating a running tool assembly of claim 14, further comprising he additional final step of refitting the assembly.
17. A method of operating a running tool assembly for deploying downhole equipment from the surface, comprising the following steps:
assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly;
attaching the assembly to a tubing string;
inserting the assembly into a selected hole to a desired depth;
rotating the string to mechanically shear screws holding the lock piston to the top sub, drive the lock piston into the liner hanger, and retract the lock pins holding the liner hanger to the top sub;
retrieving the assembly apart from the liner hanger by pulling the tubing string out of the hole.
assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly;
attaching the assembly to a tubing string;
inserting the assembly into a selected hole to a desired depth;
rotating the string to mechanically shear screws holding the lock piston to the top sub, drive the lock piston into the liner hanger, and retract the lock pins holding the liner hanger to the top sub;
retrieving the assembly apart from the liner hanger by pulling the tubing string out of the hole.
18. The method of claim 15, wherein the hydraulic fluid is in a gas phase.
19. Use of the assembly of claim 1 for downhole deployment of equipment.
20. Use of the assembly of claim 1 for downhole deployment of equipment in any industry, not limited to oil and gas drilling and completion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2132508P | 2008-01-15 | 2008-01-15 | |
| US61021325 | 2008-01-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2638731A1 true CA2638731A1 (en) | 2009-07-15 |
| CA2638731C CA2638731C (en) | 2012-07-17 |
Family
ID=40900659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2638731A Active CA2638731C (en) | 2008-01-15 | 2008-08-13 | Hydraulic running tool assembly and method of its use |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2638731C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790880A (en) * | 2015-04-16 | 2015-07-22 | 河北立森石油机械股份有限公司 | Novel anti-falling device positive displacement motor drill |
| CN106869838A (en) * | 2017-03-23 | 2017-06-20 | 中国石油集团西部钻探工程有限公司 | Hydraulic release device |
| CN112227994A (en) * | 2019-07-15 | 2021-01-15 | 中国石油化工股份有限公司 | Tail pipe hanger preventing lifting forward and hanging |
| CN114427363A (en) * | 2020-09-25 | 2022-05-03 | 中国石油化工股份有限公司 | Running tool, liner hanger and liner hanger assembly comprising same |
| CN117090527A (en) * | 2023-10-18 | 2023-11-21 | 河北上善石油机械有限公司 | Closed hydraulic tail pipe hanger |
-
2008
- 2008-08-13 CA CA2638731A patent/CA2638731C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790880A (en) * | 2015-04-16 | 2015-07-22 | 河北立森石油机械股份有限公司 | Novel anti-falling device positive displacement motor drill |
| CN106869838A (en) * | 2017-03-23 | 2017-06-20 | 中国石油集团西部钻探工程有限公司 | Hydraulic release device |
| CN112227994A (en) * | 2019-07-15 | 2021-01-15 | 中国石油化工股份有限公司 | Tail pipe hanger preventing lifting forward and hanging |
| CN112227994B (en) * | 2019-07-15 | 2022-08-12 | 中国石油化工股份有限公司 | Tail pipe hanger preventing lifting forward and hanging |
| CN114427363A (en) * | 2020-09-25 | 2022-05-03 | 中国石油化工股份有限公司 | Running tool, liner hanger and liner hanger assembly comprising same |
| CN114427363B (en) * | 2020-09-25 | 2024-04-12 | 中国石油化工股份有限公司 | Setting tool, liner hanger and liner hanger assembly comprising same |
| CN117090527A (en) * | 2023-10-18 | 2023-11-21 | 河北上善石油机械有限公司 | Closed hydraulic tail pipe hanger |
| CN117090527B (en) * | 2023-10-18 | 2023-12-15 | 河北上善石油机械有限公司 | Closed hydraulic tail pipe hanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2638731C (en) | 2012-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2013305865B2 (en) | Apparatus for creating bidirectional rotary force or motion in a downhole device and method of using same | |
| US9267338B1 (en) | In-well disconnect tool | |
| US8881824B2 (en) | Mechanically actuated device positioned below mechanically actuated release assembly utilizing J-slot device | |
| US20140158371A1 (en) | Disconnecting tool | |
| CN109477365A (en) | Top-down extrusion system and method | |
| US20100236792A1 (en) | Expanding multiple tubular portions | |
| US20140041881A1 (en) | Single trip liner setting and drilling assembly | |
| US7373988B2 (en) | Liner running system and method | |
| US11674356B2 (en) | Downhole coupling mechanism | |
| US7926580B1 (en) | Coiled tubing multi-zone jet frac system | |
| US7726395B2 (en) | Expanding multiple tubular portions | |
| CA2638731A1 (en) | Hydraulic running tool assembly and method of its use | |
| US9328582B2 (en) | Latch assembly | |
| US11142976B2 (en) | Positioning downhole-type tools | |
| US10378310B2 (en) | Drilling flow control tool | |
| US7958941B2 (en) | Hydraulic running tool assembly and method of its use | |
| US20100155082A1 (en) | Actuator Assembly for Tubular Expansion | |
| AU2016398436B2 (en) | Big bore running tool quick lock adaptor | |
| US11473409B2 (en) | Continuous circulation and rotation for liner deployment to prevent stuck | |
| US11828130B2 (en) | Release mechanism for mechanically locked wiper plug system | |
| WO2012129029A2 (en) | Multiple liner hanger assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |