US20120126482A1 - Tube sealing device and a sealing element for such a device - Google Patents
Tube sealing device and a sealing element for such a device Download PDFInfo
- Publication number
- US20120126482A1 US20120126482A1 US13/377,619 US201013377619A US2012126482A1 US 20120126482 A1 US20120126482 A1 US 20120126482A1 US 201013377619 A US201013377619 A US 201013377619A US 2012126482 A1 US2012126482 A1 US 2012126482A1
- Authority
- US
- United States
- Prior art keywords
- sealing ring
- sealing
- tube
- conical rings
- piston
- 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.)
- Abandoned
Links
Images
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
- 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
- E21B29/10—Reconditioning of well casings, e.g. straightening
Definitions
- the invention relates to a well tube sealing device, particularly for sealing a leakage in a well bore tubing, and a sealing element for sealing such a leakage.
- the main object of the invention is to provide a device and a sealing element which can provide a lasting and secure sealing for any leakage in a well bore tubing and a similar structure with high temperatures and high pressures.
- a further object is to provide a device and sealing element which is easy to install and bring in a lasting position.
- FIGS. 1 and 2 are showing a longitudinal section of a tube with a sealing ring assembly in an insertion position and a sealing position respectively,
- FIGS. 3 and 4 are a longitudinal cross section showing a sealing ring setting assembly carrying the sealing ring assembly of FIGS. 1 and 2 respectively, while
- FIG. 5 is showing a detail from FIG. 2 .
- FIGS. 1 and 2 an example of an embodiment of the invention is shown at an oil well tube 11 , which may have a leakage fissure 12 .
- a sealing ring assembly 13 is shown without a setting assembly, which is shown in FIGS. 3 and 4 .
- “Sealing ring assembly” is comprising a sealing ring and its integrated expanding elements as will be described.
- the sealing ring assembly 13 is shown in its start position in FIG. 1 , lacking the setting assembly, which is provided as a part of the total arrangement before immersion into the oil well tube 11 .
- the setting assembly has been removed after finished setting of the sealing ring assembly. This is the state of operation for the sealing ring assembly.
- the sealing ring assembly 13 consists of a sealing ring 14 with an outer sealing face 15 and inner beveled ends 16 , 17 , shown particularly in FIG. 5 .
- the outer sealing face 15 is cylindrical with a low bead 18 , 19 at each end, centrally to the beveled ends 16 , 17 .
- the beads 18 , 19 have the function of providing an annular area of particular trust against the wall 20 of the oil well tube 11 .
- the outer face 15 of the sealing ring 14 is covered by a layer 21 of a material with a higher ductility than the base material of the sealing ring, which may be steel or another alloy with corresponding strength properties.
- the layer 21 may be of silver, or of a resin material.
- the sealing ring assembly 13 further comprises a pair of expanding dies 22 , 23 which generally consist of a pair of conically beveled press rings 24 , 25 facing the beveled ends 16 , 17 of the sealing ring 14 and being integrated with a pair of tapering bushings 26 , 27 which are overlapping with mutual engagement in a grip zone 28 .
- both bushings 26 , 27 have a knurled surface for interlocking the expanding dies 22 , 23 in the final, compressed position shown in FIG. 2 .
- the expanding die 22 facing the accessible end of the tube 11 has an annular, radially extending rim 29 for engaging the setting assembly shown in FIGS. 3 and 4 .
- the opposite expanding die 23 has a radial groove 30 at the outer end for receiving a shear off ring 31 of a soft metallic material, e.g. copper.
- a locking ring 32 is inserted into a second, inner groove 33 .
- the shear off ring 31 has an axial groove 34 for making a weakened area.
- FIGS. 3 and 4 show a setting assembly 35 provided for engaging the expanding dies 22 , 23 during the setting stage, to expand the sealing ring 14 into sealing engagement with the oil well tube.
- the setting assembly is shown together with the sealing ring assembly in an initial position in FIG. 3 , and in an intermediate position shortly before breaking the shear ring 31 in FIG. 4 .
- the setting assembly 35 comprises as main element a cylinder piston device 36 .
- the cylinder piston device 36 has a tubular element 37 , the cylindrical outside of which is carrying an annular glider or piston 38 .
- the annular piston 38 has a collar 39 sliding on a locking ring 40 acting as a locking nut on the tubular element 37 at the free end thereof,
- the collar 39 of the piston 38 is carrying the shear ring 31 , this being locked with a locking sleeve 41 acting as a locking nut.
- the tubular element 37 centrally in the setting assembly 35 is carried by an end dish 42 on which the rim 29 is engaging an annular step 43 .
- the end dish 42 has a lug 44 with an opening 45 for connecting to an arm for positioning the complete sealing device in the oil well tube 11 .
- the tubular element 37 has a cylindrical insert 46 in the free end, with a pair of sealing rings 47 , 48 in circumferential grooves and threads 40 at the outer end.
- the cylindrical insert 46 is providing a manifold for connecting the cylinder-piston-arrangement to an external hydraulic system.
- a cylindrical recess 52 At the inner end of the cylindrical insert 46 is a cylindrical recess 52 with a threaded bottom bore 50 can take a hose coupling (not shown).
- An opening 51 in the end dish 42 being provided for a hose.
- the cylindrical insert 45 has a connecting channel 53 to provide hydraulic medium to the chamber 54 of the piston 38 .
- the sealing ring assembly 13 with the setting assembly 35 incorporated is lowered into a well bore tube 11 as shown in FIG. 1 .
- the sealing ring assembly is positioned for setting.
- the expanding dies 22 , 23 are contracted and are pressing the sealing ring 14 against the wall 20 of the well bore tube 11 , and deforming the beads or annular ribs 18 and 19 to provide a particular tight fit on both sides of the leakage 12 .
- the copper ring 31 is designed to be torn off at a certain strain.
- the tearing properties of copper are suitable for the present purpose, as the shearing ring will have a certain duration, giving no shock in the system.
- a ring of a different material with predictable rupturing properties can be used.
- the inner part of the setting assembly may be detracted from the oil well tube 11 and recovered, while the sealing ring assembly 13 is left with an opening 54 .
- One part of the ring will remain together with the sealing ring assembly 13 , while the other part will remain on the sealing ring setting assembly 35 .
- the invention may be utilized for providing sealing rings in tubes or tubular openings different from that of an oil well tube.
Abstract
Device for sealing a leakage in a well tube, comprising a sealing ring and elements for forcing the sealing ring into sealing engagement with the wall of the tube. A power device being operatively connected to the elements. The sealing ring having beveled ends which are juxtaposed with a pair of mating conical rings. A cylinder-piston device engages the conical rings to force them into expanding engagement with the sealing ring.
Description
- The invention relates to a well tube sealing device, particularly for sealing a leakage in a well bore tubing, and a sealing element for sealing such a leakage.
- When an opening is formed in the sidewalls of an existing wellbore casing, whether through damage to the casing or because of an intentional perforation of the casing to facilitate production or a fracturing operation, it may be necessary to seal off the opening in the existing wellbore casing. Conventional methods for sealing off such openings are expensive and unreliable.
- In U.S. Pat. No. 7,048,067 (Cook et al 2006) a wellbore casing repair is shown, where an expandable sealing member is radially expanded by two expansion cones forced together in the sealing zone.
- With a sealing member according to this prior art, made of a polymer, there will be no satisfying and lasting sealing.
- The main object of the invention is to provide a device and a sealing element which can provide a lasting and secure sealing for any leakage in a well bore tubing and a similar structure with high temperatures and high pressures.
- A further object is to provide a device and sealing element which is easy to install and bring in a lasting position.
- Further it is an object to provide a sealing element which can be applied universally in metal tubing.
- The basic features of the Invention are stated in claim 1. This device may be used for sealing various tubular structures with corresponding requirements in addition to well tubes. Further details of the invention are listed in the sub claims 2 to 6 to claim 1 and subclaims 8 and 9 to claim 7. Further details regarding the invention will appear from the sub claims to the claims 6 and 7.
- The invention is illustrated in the drawings, in which
-
FIGS. 1 and 2 are showing a longitudinal section of a tube with a sealing ring assembly in an insertion position and a sealing position respectively, -
FIGS. 3 and 4 are a longitudinal cross section showing a sealing ring setting assembly carrying the sealing ring assembly ofFIGS. 1 and 2 respectively, while -
FIG. 5 is showing a detail fromFIG. 2 . - The elements of the Figures are shown with a vertical axis. The invention is however suitable for any position of the tube or bore to be sealed.
- In
FIGS. 1 and 2 an example of an embodiment of the invention is shown at anoil well tube 11, which may have aleakage fissure 12. Asealing ring assembly 13 is shown without a setting assembly, which is shown inFIGS. 3 and 4 . “Sealing ring assembly” is comprising a sealing ring and its integrated expanding elements as will be described. - The
sealing ring assembly 13 is shown in its start position inFIG. 1 , lacking the setting assembly, which is provided as a part of the total arrangement before immersion into theoil well tube 11. InFIG. 2 , the setting assembly has been removed after finished setting of the sealing ring assembly. This is the state of operation for the sealing ring assembly. - The
sealing ring assembly 13 consists of asealing ring 14 with an outer sealingface 15 and innerbeveled ends FIG. 5 . Theouter sealing face 15 is cylindrical with alow bead beveled ends beads wall 20 of theoil well tube 11. Theouter face 15 of thesealing ring 14 is covered by alayer 21 of a material with a higher ductility than the base material of the sealing ring, which may be steel or another alloy with corresponding strength properties. Thelayer 21 may be of silver, or of a resin material. - The
sealing ring assembly 13 further comprises a pair of expandingdies beveled press rings beveled ends sealing ring 14 and being integrated with a pair of taperingbushings grip zone 28. In the grip zone, both bushings 26, 27 have a knurled surface for interlocking the expandingdies FIG. 2 . - The expanding die 22 facing the accessible end of the
tube 11 has an annular, radially extendingrim 29 for engaging the setting assembly shown inFIGS. 3 and 4 . The opposite expanding die 23 has aradial groove 30 at the outer end for receiving a shear offring 31 of a soft metallic material, e.g. copper. To lock theshear ring 31 in thegroove 30, alocking ring 32 is inserted into a second,inner groove 33. The shear offring 31 has anaxial groove 34 for making a weakened area. -
FIGS. 3 and 4 show asetting assembly 35 provided for engaging the expandingdies sealing ring 14 into sealing engagement with the oil well tube. The setting assembly is shown together with the sealing ring assembly in an initial position inFIG. 3 , and in an intermediate position shortly before breaking theshear ring 31 inFIG. 4 . - The
setting assembly 35 comprises as main element acylinder piston device 36. Thecylinder piston device 36 has atubular element 37, the cylindrical outside of which is carrying an annular glider orpiston 38. Theannular piston 38 has acollar 39 sliding on alocking ring 40 acting as a locking nut on thetubular element 37 at the free end thereof, - The
collar 39 of thepiston 38 is carrying theshear ring 31, this being locked with alocking sleeve 41 acting as a locking nut. - The
tubular element 37 centrally in thesetting assembly 35 is carried by anend dish 42 on which therim 29 is engaging anannular step 43. Theend dish 42 has alug 44 with anopening 45 for connecting to an arm for positioning the complete sealing device in theoil well tube 11. - The
tubular element 37 has acylindrical insert 46 in the free end, with a pair ofsealing rings threads 40 at the outer end. Thecylindrical insert 46 is providing a manifold for connecting the cylinder-piston-arrangement to an external hydraulic system. At the inner end of thecylindrical insert 46 is acylindrical recess 52 with a threadedbottom bore 50 can take a hose coupling (not shown). An opening 51 in theend dish 42 being provided for a hose. - The
cylindrical insert 45 has a connectingchannel 53 to provide hydraulic medium to thechamber 54 of thepiston 38. - The
sealing ring assembly 13 with thesetting assembly 35 incorporated is lowered into a wellbore tube 11 as shown inFIG. 1 . At the level of theleakage 12, the sealing ring assembly is positioned for setting. By supplying high pressure hydraulic medium to the setting assembly, the expandingdies ring 14 against thewall 20 of the wellbore tube 11, and deforming the beads orannular ribs leakage 12. - To have a defined upper setting force, the
copper ring 31 is designed to be torn off at a certain strain. The tearing properties of copper are suitable for the present purpose, as the shearing ring will have a certain duration, giving no shock in the system. Alternatively to thecopper ring 31, a ring of a different material with predictable rupturing properties can be used. - After tearing off the
copper ring 31, the inner part of the setting assembly may be detracted from theoil well tube 11 and recovered, while thesealing ring assembly 13 is left with anopening 54. One part of the ring will remain together with thesealing ring assembly 13, while the other part will remain on the sealingring setting assembly 35. - The invention may be utilized for providing sealing rings in tubes or tubular openings different from that of an oil well tube.
Claims (9)
1. Device for sealing a leakage (12) in a well tube (11), comprising a sealing ring (14) and elements (22-25) for forcing the sealing ring into sealing engagement with the wall (20) of the tube (11), a power device (35; 38) being operatively connected to said elements (22-25), wherein the sealing ring (14) has beveled inner ends (18, 19) which are juxtaposed with a pair of mating conical rings (24, 25), and that a cylinder-piston-device (36) is engaging the conical rings (24, 25) for forcing them into substantially non-elastic engagement with the sealing ring (14).
2. Device according to claim 1 , wherein the conical rings (24, 25) engaging the ends (18, 19) of the sealing ring (14) are connected by a mating pair of sleeves ( ) which are engaging in a beveled area for providing a locking mesh.
3. Device according to claim 1 , wherein the conical rings (24, 25) are engaged by a centrally arranged cylinder-piston arrangement (35), to be pressed axially to an expanding engagement with the sealing ring (14),
4. Device according to claim 3 , wherein it comprises an annular piston (38) sliding on a central, tubular core (37), the piston and the core being connected to a pair of cooperating rings (39A, 43) provided to press against the ends of the conical rings (24, 25) for expanding the sealing ring (14).
5. Device according to claim 4 , wherein the engagement against one of the conical rings (24, 25) is provided by a rupturable ring (31) of a material having a defined shear strength, preferably copper.
6. Device according to claim 1 , wherein the cylinder-piston arrangement (36) is included in a sealing ring setting assembly (35) with a central connection (50, 51, 52) to an external hydraulic system.
7. Sealing element (14) for sealing a leakage in a tube (11), with an annular outer face provided to engage the inner wall of a tube to be sealed, wherein the outer face of the sealing ring has two annular beads (18, 19) in the core material of the sealing ring.
8. Sealing element according to claim 7 , wherein the height of the annular beads (18, 19) is ca. 0.8-2 mm.
9. Sealing ring according to claim 7 , wherein at least the outer surface of the beads (18, 19) is covered with a layer of a ductile material, as silver, gold, lead, or plastic, preferably the outer face of the sealing ring, is covered by the sealing layer.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20092239A NO330232B1 (en) | 2009-06-10 | 2009-06-10 | Rudder sealing device |
NO20092239 | 2009-06-10 | ||
PCT/NO2010/000221 WO2010143975A1 (en) | 2009-06-10 | 2010-06-10 | Tube sealing device and a sealing element for such a device. |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120126482A1 true US20120126482A1 (en) | 2012-05-24 |
Family
ID=43309053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/377,619 Abandoned US20120126482A1 (en) | 2009-06-10 | 2010-06-10 | Tube sealing device and a sealing element for such a device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120126482A1 (en) |
BR (1) | BRPI1012889B1 (en) |
NO (1) | NO330232B1 (en) |
WO (1) | WO2010143975A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140027118A1 (en) * | 2012-07-30 | 2014-01-30 | Richard W. DeLange | Expandable liner |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2714932A (en) * | 1951-08-08 | 1955-08-09 | Lane Wells Co | Bridging plug |
US3948321A (en) * | 1974-08-29 | 1976-04-06 | Gearhart-Owen Industries, Inc. | Liner and reinforcing swage for conduit in a wellbore and method and apparatus for setting same |
US4753444A (en) * | 1986-10-30 | 1988-06-28 | Otis Engineering Corporation | Seal and seal assembly for well tools |
US6276690B1 (en) * | 1999-04-30 | 2001-08-21 | Michael J. Gazewood | Ribbed sealing element and method of use |
US20060065391A1 (en) * | 2004-09-20 | 2006-03-30 | Owen Oil Tools Lp | Expandable seal |
US20060283607A1 (en) * | 2001-12-27 | 2006-12-21 | Duggan Andrew M | Bore isolation |
US20070056725A1 (en) * | 2005-09-09 | 2007-03-15 | Chad Lucas | Seal assembly |
US20080110626A1 (en) * | 2006-11-15 | 2008-05-15 | Halliburton Energy Services, Inc. | Well tool including swellable material and integrated fluid for initiating swelling |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7048067B1 (en) * | 1999-11-01 | 2006-05-23 | Shell Oil Company | Wellbore casing repair |
EG22483A (en) * | 1999-11-24 | 2003-02-26 | Shell Int Research | Sealing of openings through the wall of a well tubular |
FR2901837B1 (en) * | 2006-06-06 | 2015-05-15 | Saltel Ind | METHOD AND DEVICE FOR SHAPING A WELL BY HYDROFORMING A METAL TUBULAR SHIRT, AND SHIRT FOR SUCH USAGE |
AU2008243506B2 (en) * | 2007-04-26 | 2013-03-07 | Welltec A/S | A cladding method for sealing a leak in a casing pipeline, borehole or well downhole |
-
2009
- 2009-06-10 NO NO20092239A patent/NO330232B1/en unknown
-
2010
- 2010-06-10 BR BRPI1012889 patent/BRPI1012889B1/en active IP Right Grant
- 2010-06-10 US US13/377,619 patent/US20120126482A1/en not_active Abandoned
- 2010-06-10 WO PCT/NO2010/000221 patent/WO2010143975A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2714932A (en) * | 1951-08-08 | 1955-08-09 | Lane Wells Co | Bridging plug |
US3948321A (en) * | 1974-08-29 | 1976-04-06 | Gearhart-Owen Industries, Inc. | Liner and reinforcing swage for conduit in a wellbore and method and apparatus for setting same |
US4753444A (en) * | 1986-10-30 | 1988-06-28 | Otis Engineering Corporation | Seal and seal assembly for well tools |
US6276690B1 (en) * | 1999-04-30 | 2001-08-21 | Michael J. Gazewood | Ribbed sealing element and method of use |
US20060283607A1 (en) * | 2001-12-27 | 2006-12-21 | Duggan Andrew M | Bore isolation |
US20060065391A1 (en) * | 2004-09-20 | 2006-03-30 | Owen Oil Tools Lp | Expandable seal |
US20070056725A1 (en) * | 2005-09-09 | 2007-03-15 | Chad Lucas | Seal assembly |
US20080110626A1 (en) * | 2006-11-15 | 2008-05-15 | Halliburton Energy Services, Inc. | Well tool including swellable material and integrated fluid for initiating swelling |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140027118A1 (en) * | 2012-07-30 | 2014-01-30 | Richard W. DeLange | Expandable liner |
US10648297B2 (en) * | 2012-07-30 | 2020-05-12 | Weatherford/Lamb, Inc. | Expandable liner |
US11434729B2 (en) | 2012-07-30 | 2022-09-06 | Weatherford Technology Holdings, Llc | Expandable liner |
Also Published As
Publication number | Publication date |
---|---|
WO2010143975A1 (en) | 2010-12-16 |
BRPI1012889A2 (en) | 2016-12-13 |
NO20092239L (en) | 2010-12-13 |
NO330232B1 (en) | 2011-03-07 |
BRPI1012889B1 (en) | 2019-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100395474C (en) | Expandable joint connector | |
US7770429B2 (en) | Method for producing a coupling on a pipe and device for producing said coupling | |
US11136854B2 (en) | Downhole tool with sealing ring | |
CN101012845A (en) | Blind rivet | |
US10400531B2 (en) | Slip assembly | |
EP2893132B1 (en) | A tubular connection | |
CN103998709B (en) | For sealing downhole tubular system and the assembly of opening | |
CN107075932B (en) | Improved isolation barrier | |
EP0929768B1 (en) | Conduit connector and method | |
CN112523721A (en) | Sealing assembly for dissolvable bridge plug, dissolvable bridge plug and method for sealing gap | |
US9803449B2 (en) | Pin-less composite sleeve or coupling to composite mandrel or shaft connections | |
US10605042B2 (en) | Short millable plug for hydraulic fracturing operations | |
US20120126482A1 (en) | Tube sealing device and a sealing element for such a device | |
CA2597909A1 (en) | Radial expansion of a wellbore casing against a formation | |
WO2017034671A1 (en) | Convertible plug seal assembly | |
CN106677738B (en) | Soluble packer | |
GB2094928A (en) | Plug assembly and method of plugging a passage | |
CN210483625U (en) | Oil gas well packing well completion device | |
EP3658309B1 (en) | Expandable connection with metal-to-metal seal | |
US11965391B2 (en) | Downhole tool with sealing ring | |
EP1363060A2 (en) | Conduit connector and method | |
US20210301620A1 (en) | Downhole tool with sealing ring | |
CN111502585B (en) | Internal sealing tool for fireflooding | |
CN112682017B (en) | Underground fracturing tool | |
CN116752932A (en) | Combined sealing ring type metal soluble bridge plug and forming and assembling method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: INTERWELL TECHNOLOGY AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HIORTH, ESPEN;STORMO, TERJE;REEL/FRAME:027812/0206 Effective date: 20120109 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |