SU1745873A1 - Hydraulic and mechanical mandrel for expanding corrugated patch in casing - Google Patents
Hydraulic and mechanical mandrel for expanding corrugated patch in casing Download PDFInfo
- Publication number
- SU1745873A1 SU1745873A1 SU864003368A SU4003368A SU1745873A1 SU 1745873 A1 SU1745873 A1 SU 1745873A1 SU 864003368 A SU864003368 A SU 864003368A SU 4003368 A SU4003368 A SU 4003368A SU 1745873 A1 SU1745873 A1 SU 1745873A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sectors
- casing
- diaphragm
- head
- expanding
- Prior art date
Links
- 210000000188 Diaphragm Anatomy 0.000 claims 2
- 238000007789 sealing Methods 0.000 abstract description 3
- YTCZZXIRLARSET-VJRSQJMHSA-M sodium;4-[(1R,2R,3aS,8bS)-2-hydroxy-1-[(E,3S)-3-hydroxy-4-methyloct-1-en-6-ynyl]-2,3,3a,8b-tetrahydro-1H-cyclopenta[b][1]benzofuran-5-yl]butanoate Chemical compound data:image/svg+xml;base64,<?xml version='1.0' encoding='iso-8859-1'?>
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- 239000011505 plaster Substances 0.000 description 6
- 241000731961 Juncaceae Species 0.000 description 1
- 210000002832 Shoulder Anatomy 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001070 adhesive Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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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
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
- E21B43/105—Expanding tools specially adapted therefor
Abstract
Hydromechanical dornier head for expanding a corrugated patch in a casing string. The dorner head contains a cone-punch with longitudinal shaped grooves, a housing with a self-sealing tubular diaphragm, windows that are stepped in cross-section, and retractable sectors that are staggered in cross-section are located in them. 4 il.
Description
The invention relates to devices for repairing casing strings of oil, gas and other wells with the aim of restoring tightness and strengthening the wall of the column by installing a steel patch and creating a stressed casing-patch system.
The purpose of the invention is to increase the efficiency of the head by increasing the radial force per sector and increasing the service life.
FIG. 1 shows the dorniru head, a longitudinal section, in the transport position; in fig. 2 - Dorniru head, general view. in working position; in fig. 3 - the same. cross-section when expanding sectors in a pipe with a minimum wall thickness; in fig. 4 - the same, cross section at pressing a plaster in a pipe with the maximum wall thickness.
The hydromechanical dorning head consists of a body 1 with windows, made in the form of stop flanges 2 and a cylinder-cell 3 fixed between the flanges. The hull windows are made stepped in cross section. The nut 4 is tightened on the hollow barrel part of the body: cone-punch 5. thrust flanges 2 and cylinder-cell 3. Cylinder-cell 3 is fixed so that the symmetry planes of the body windows and sectors 6 that are stepped in the transverse direction are aligned with the plane By the symmetry of the longitudinal profile cana of the cone-punch 5. On the barrel part of the body under the cylinder-cell 3 and sectors 6 a self-sealing center tube diaphragm 7 is located, which interacts with large steps of sectors 6.
The device works as follows (Fig. 2).
During the descent into the casing 8, the lower end of the corrugated plaster 9 is placed on the cone-punch 5, and
WITH
WITH
x | Ate
00
Xf W
the concave beams of the plaster are inserted and abut against the longitudinal grooves of the cone-punch. The patch is worn on the rod 10 and its upper end is fixed by the end of the power cylinders of the mandrel or hydromechanical box.
When creating the working pressure, the locking head enters the patch, expanding it to tight contact with the casing. Under pressure, the self-sealing ends of the cylindrical diaphragm 7 are pressed tightly against the walls of the hollow recess A, creating tightness in the working chamber with virtually no radial expansion.
The central part of the diaphragm 7, expanding, acts on the retractable sectors 6, pressing them against the adhesive patch (Fig. 2).
In this case, the rest of the expanding diaphragm abuts against the stationary inner surface of the cylinder-cell.
Work functions are transferred to a stronger and more durable cylindrical part of the diaphragm.
The cylindrical diaphragm, expanding, abuts part of its outer surface into the cylinder-cell. As a result, rectangular protrusions or depressions (depending on the degree of extension of the sectors) appear on the diaphragm, corresponding to the supporting surface of the base of each sector. The magnitude of the advancement of the sector varies depending on the wall thickness of the casing, the presence or absence of a plaster.
FIG. Figures 3 and 4 show the limiting cases of the extension of sectors under load: during expansion in a pipe with a minimum wall thickness (Fig. 3) and in a pipe with a maximum wall thickness with a plaster (Fig. 4). The shoulders, which at the same time encircle the diaphragm around the perimeter of the supporting surface of the base of the sector, do not exceed 3-3.5 mm. With smoothed edges and minimal gaps in the window between the sector and the body, the reason for the rapid destruction is excluded.
rubber diaphragm: leaking and subsequent pinching. Even in the event of a diaphragm rush on the ledge (after prolonged use), it is possible to easily restore the necessary pressure in the head and complete the installation of the patch without any accidents or complications. When a diaphragm rushes, fluid may leak only through the gaps in the window between the sector and the housing. When running sector landing in the window, the total area of the gaps does not exceed 20-40 mm2. Taking into account the high coefficient of resistance of a narrow slit-shaped gap and overlapping the main part of it with rubber
diaphragm, the required pressure can be easily restored by a slight increase in the performance of the pump unit.
The total radial force developed by the head is transmitted not to 12, but to the withdrawable sectors. Consequently, under the same working pressure, the force of the radial effect of the sector on doubled corrugations doubles, which guarantees
full adhesion plaster.
Claims (1)
- Invention FormulaHydromechanical dorniruyuscha head for expanding the corrugated patch, the casing comprising a cone-punch with longitudinal profiled grooves with a body placed therein the self-tubular decoupling diaphragm and pull sectors tymi steplike in cross-section, mounted with the possibility of reacting more stages with the diaphragm, wherein so as to increase efficiencythe head works by increasing the radial force per sector and extending the service life, retractable sectors are stepped in cross section, and the housing has stepped windows in cross section for retractable sectors, and the plane of symmetry of the body windows and the longitudinal profile grooves of the cone-punch are aligned.ge r co1G"TI/ / tf- "O" SIVFi.ZFIG. four
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864003368A SU1745873A1 (en) | 1986-01-06 | 1986-01-06 | Hydraulic and mechanical mandrel for expanding corrugated patch in casing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864003368A SU1745873A1 (en) | 1986-01-06 | 1986-01-06 | Hydraulic and mechanical mandrel for expanding corrugated patch in casing |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1745873A1 true SU1745873A1 (en) | 1992-07-07 |
Family
ID=21214813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU864003368A SU1745873A1 (en) | 1986-01-06 | 1986-01-06 | Hydraulic and mechanical mandrel for expanding corrugated patch in casing |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1745873A1 (en) |
Cited By (40)
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US6328113B1 (en) | 1998-11-16 | 2001-12-11 | Shell Oil Company | Isolation of subterranean zones |
US6470966B2 (en) | 1998-12-07 | 2002-10-29 | Robert Lance Cook | Apparatus for forming wellbore casing |
US6557640B1 (en) | 1998-12-07 | 2003-05-06 | Shell Oil Company | Lubrication and self-cleaning system for expansion mandrel |
US6568471B1 (en) | 1999-02-26 | 2003-05-27 | Shell Oil Company | Liner hanger |
US6575240B1 (en) | 1998-12-07 | 2003-06-10 | Shell Oil Company | System and method for driving pipe |
US6604763B1 (en) | 1998-12-07 | 2003-08-12 | Shell Oil Company | Expandable connector |
US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
US6640903B1 (en) | 1998-12-07 | 2003-11-04 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
GB2391882A (en) * | 2002-08-01 | 2004-02-18 | Schlumberger Holdings | Downhole tubing expander having an expandable portion |
US6712154B2 (en) | 1998-11-16 | 2004-03-30 | Enventure Global Technology | Isolation of subterranean zones |
US6725919B2 (en) | 1998-12-07 | 2004-04-27 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
US6745845B2 (en) | 1998-11-16 | 2004-06-08 | Shell Oil Company | Isolation of subterranean zones |
GB2396371A (en) * | 2002-12-12 | 2004-06-23 | Weatherford Lamb | Tube expander tool with radially extendable reinforced pads |
US6823937B1 (en) | 1998-12-07 | 2004-11-30 | Shell Oil Company | Wellhead |
EP1549824A2 (en) * | 2002-09-20 | 2005-07-06 | Enventure Global Technology | Mono diameter wellbore casing |
GB2415981A (en) * | 2002-03-13 | 2006-01-11 | Enventure Global Technology | Hydraulic and mechanical tubular expansion |
US7007760B2 (en) * | 2001-07-13 | 2006-03-07 | Shell Oil Company | Method of expanding a tubular element in a wellbore |
US7086480B2 (en) | 2002-05-03 | 2006-08-08 | Weatherford/Lamb, Inc. | Tubing anchor |
US7090025B2 (en) | 2000-10-25 | 2006-08-15 | Weatherford/Lamb, Inc. | Methods and apparatus for reforming and expanding tubulars in a wellbore |
US7121351B2 (en) | 2000-10-25 | 2006-10-17 | Weatherford/Lamb, Inc. | Apparatus and method for completing a wellbore |
US7124826B2 (en) | 1998-12-22 | 2006-10-24 | Weatherford/Lamb, Inc. | Procedures and equipment for profiling and jointing of pipes |
US7174764B2 (en) | 2001-08-16 | 2007-02-13 | E2 Tech Limited | Apparatus for and a method of expanding tubulars |
EP1510651A3 (en) * | 1998-12-22 | 2007-05-09 | Weatherford/Lamb, Inc. | Method and apparatus for expanding a liner patch |
GB2402953B (en) * | 2003-06-16 | 2007-08-29 | Weatherford Lamb | Tubing expansion |
US7299881B2 (en) * | 1998-11-16 | 2007-11-27 | Shell Oil Company | Radial expansion of tubular members |
US7360604B2 (en) * | 2003-04-25 | 2008-04-22 | Shell Oil Company | Expander system for stepwise expansion of a tubular element |
US7389822B2 (en) * | 2003-04-25 | 2008-06-24 | Shell Oil Company | Expander system for incremental expansion of a tubular element |
US7503396B2 (en) | 2006-02-15 | 2009-03-17 | Weatherford/Lamb | Method and apparatus for expanding tubulars in a wellbore |
US7665532B2 (en) | 1998-12-07 | 2010-02-23 | Shell Oil Company | Pipeline |
US7712522B2 (en) | 2003-09-05 | 2010-05-11 | Enventure Global Technology, Llc | Expansion cone and system |
US7740076B2 (en) | 2002-04-12 | 2010-06-22 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
US7739917B2 (en) | 2002-09-20 | 2010-06-22 | Enventure Global Technology, Llc | Pipe formability evaluation for expandable tubulars |
US7757774B2 (en) | 2004-10-12 | 2010-07-20 | Weatherford/Lamb, Inc. | Method of completing a well |
US7775290B2 (en) | 2003-04-17 | 2010-08-17 | Enventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
US7793721B2 (en) | 2003-03-11 | 2010-09-14 | Eventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
US7798225B2 (en) | 2005-08-05 | 2010-09-21 | Weatherford/Lamb, Inc. | Apparatus and methods for creation of down hole annular barrier |
US7819185B2 (en) | 2004-08-13 | 2010-10-26 | Enventure Global Technology, Llc | Expandable tubular |
US7886831B2 (en) | 2003-01-22 | 2011-02-15 | Enventure Global Technology, L.L.C. | Apparatus for radially expanding and plastically deforming a tubular member |
US7918284B2 (en) | 2002-04-15 | 2011-04-05 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
CN103835674A (en) * | 2014-03-04 | 2014-06-04 | 岳维建 | Fast safe solid expandable tube reinforcement device for oilfields |
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US6328113B1 (en) | 1998-11-16 | 2001-12-11 | Shell Oil Company | Isolation of subterranean zones |
US6712154B2 (en) | 1998-11-16 | 2004-03-30 | Enventure Global Technology | Isolation of subterranean zones |
US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
US7299881B2 (en) * | 1998-11-16 | 2007-11-27 | Shell Oil Company | Radial expansion of tubular members |
US6745845B2 (en) | 1998-11-16 | 2004-06-08 | Shell Oil Company | Isolation of subterranean zones |
US7357190B2 (en) * | 1998-11-16 | 2008-04-15 | Shell Oil Company | Radial expansion of tubular members |
US6631760B2 (en) | 1998-12-07 | 2003-10-14 | Shell Oil Company | Tie back liner for a well system |
US6575240B1 (en) | 1998-12-07 | 2003-06-10 | Shell Oil Company | System and method for driving pipe |
US7665532B2 (en) | 1998-12-07 | 2010-02-23 | Shell Oil Company | Pipeline |
US6561227B2 (en) | 1998-12-07 | 2003-05-13 | Shell Oil Company | Wellbore casing |
US6557640B1 (en) | 1998-12-07 | 2003-05-06 | Shell Oil Company | Lubrication and self-cleaning system for expansion mandrel |
US6640903B1 (en) | 1998-12-07 | 2003-11-04 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
US6604763B1 (en) | 1998-12-07 | 2003-08-12 | Shell Oil Company | Expandable connector |
US6823937B1 (en) | 1998-12-07 | 2004-11-30 | Shell Oil Company | Wellhead |
US6497289B1 (en) | 1998-12-07 | 2002-12-24 | Robert Lance Cook | Method of creating a casing in a borehole |
US6470966B2 (en) | 1998-12-07 | 2002-10-29 | Robert Lance Cook | Apparatus for forming wellbore casing |
US6725919B2 (en) | 1998-12-07 | 2004-04-27 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
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US7124826B2 (en) | 1998-12-22 | 2006-10-24 | Weatherford/Lamb, Inc. | Procedures and equipment for profiling and jointing of pipes |
US7124821B2 (en) * | 1998-12-22 | 2006-10-24 | Weatherford/Lamb, Inc. | Apparatus and method for expanding a tubular |
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US6705395B2 (en) | 1999-02-26 | 2004-03-16 | Shell Oil Company | Wellbore casing |
US6631769B2 (en) | 1999-02-26 | 2003-10-14 | Shell Oil Company | Method of operating an apparatus for radially expanding a tubular member |
US6568471B1 (en) | 1999-02-26 | 2003-05-27 | Shell Oil Company | Liner hanger |
US6684947B2 (en) | 1999-02-26 | 2004-02-03 | Shell Oil Company | Apparatus for radially expanding a tubular member |
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