WO2008002739A1 - Epoxy-secured web collar - Google Patents
Epoxy-secured web collar Download PDFInfo
- Publication number
- WO2008002739A1 WO2008002739A1 PCT/US2007/069975 US2007069975W WO2008002739A1 WO 2008002739 A1 WO2008002739 A1 WO 2008002739A1 US 2007069975 W US2007069975 W US 2007069975W WO 2008002739 A1 WO2008002739 A1 WO 2008002739A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- apertures
- web
- collar
- tubular member
- epoxy
- Prior art date
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
Definitions
- the invention relates to a stop collar for use with a centralizer on a tubular member. More particularly, the invention relates to an improved method to secure a stop collar on a tubular member.
- FIG. 1 is an elevation view of a tubular assembly 2 having a centralizer 5 positioned on a casing segment 7 between two conventional stop collars 6.
- the centralizer 5 includes a plurality of ribs 4 secured to a sleeve 3.
- the sleeve 3 of the centralizer 5 is slidably received on the casing segment 7 to provide stand-off between the casing and the borehole (not shown).
- a kit for centering a tubular member within a borehole.
- the kit includes a web collar having a plurality of circumferentially disposed apertures, wherein the web collar is configured for receiving the tubular member.
- a quantity of curable resin may be supplied, along with an optional implement for applying the curable resin to the plurality of apertures.
- At least one threaded member may be supplied as well, configured for passing through a wall of the web collar to frictionally engage the tubular member.
- FIG. 3 is a perspective view of a second embodiment of the web collar according to the present invention having generally circular apertures.
- FIG. 4 is a perspective view of a web collar being installed on a casing segment for limiting axial movement of a centralizer.
- FIG. 5 is a flowchart illustrating a method of installing a web collar on a casing segment according to one embodiment of the present invention.
- an apparatus for effectively and reliably limiting axial movement of a centralizer on a tubular member.
- a web collar is a sleeve having a plurality of strategically sized and positioned apertures.
- the apertures are positioned on the sleeve to form a web.
- the apertures of the web are adapted for receiving and retaining a viscous epoxy until it cures. Once the epoxy has cured, a strong bond is formed between the epoxy and the tubular member on which it is received.
- One or more set screws may be provided to secure the web collar on the tubular member until the epoxy has cured.
- resin or other adhesive materials may be selected for securing the web collar on the tubular member.
- the term "resin” includes any of a variety of viscous, flowable adhesive materials that may be cured or otherwise hardened, usually upon addition of a hardener or agent. Epoxy is a common type of resin-based adhesive discussed in connection with the embodiments shown in the figures. Other resins or flowable adhesives may alternatively be used in one or more other embodiments.
- FIG. 3 is a perspective view of another embodiment of a web collar generally indicated at 30.
- the web collar 30 has a plurality of generally circular apertures 32 formed therein.
- the apertures 32 are positioned and spaced to define a web 34.
- the web 34 includes a plurality of intermediate portions 36 interconnected by outer portions 38.
- the apertures 32 occupy a substantial percentage of an outer surface of the web collar 30.
- An interior surface 31 of the apertures 32 provides additional bonding area and helps retain epoxy subsequently disposed in the apertures 32.
- Threaded holes 42 are optionally provided for receiving set screws to secure the web collar in place on the tubular member during application and curing of the epoxy.
- the apertures 74 of the web collar 62 desirably expose a large surface area on the casing segment 64 for the epoxy 78 to bond with.
- the interior surface 84 of the apertures 74 provides an optional, additional surface area for the epoxy adherence to increase the bonding strength between the web collar 62 and the casing segment 64.
- the interior surface 84 increases with increasing aperture size.
- the size of the apertures 74 may be selected to occupy a desired percentage of the surface area of the web collar 62 and to control the surface area exposed at interior surface 84.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0712950-5A BRPI0712950A2 (en) | 2006-06-28 | 2007-05-30 | disc necklace attached by epoxy |
CA002654543A CA2654543A1 (en) | 2006-06-28 | 2007-05-30 | Epoxy-secured web collar |
EP07797880A EP2035647A1 (en) | 2006-06-28 | 2007-05-30 | Epoxy-secured web collar |
NO20090394A NO20090394L (en) | 2006-06-28 | 2009-01-27 | Epoxy-proof band collar |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/427,251 US20080035331A1 (en) | 2006-06-28 | 2006-06-28 | Epoxy secured web collar |
US11/427,251 | 2006-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008002739A1 true WO2008002739A1 (en) | 2008-01-03 |
Family
ID=38657989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/069975 WO2008002739A1 (en) | 2006-06-28 | 2007-05-30 | Epoxy-secured web collar |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080035331A1 (en) |
EP (1) | EP2035647A1 (en) |
BR (1) | BRPI0712950A2 (en) |
CA (1) | CA2654543A1 (en) |
NO (1) | NO20090394L (en) |
WO (1) | WO2008002739A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8763690B2 (en) | 2007-05-16 | 2014-07-01 | Antelope Oil Tool & Mfg. Co., Llc | Casing centralizers having flexible bow springs |
US9771763B2 (en) | 2007-05-16 | 2017-09-26 | Antelope Oil Tool & Mfg. Co. | Low-clearance centralizer |
US7845061B2 (en) * | 2007-05-16 | 2010-12-07 | Frank's International, Inc. | Low clearance centralizer and method of making centralizer |
GB0815572D0 (en) * | 2008-08-27 | 2008-10-01 | Advanced Oilfield Composities | Composite tubular product |
EP2604785A1 (en) * | 2008-09-29 | 2013-06-19 | Frank's International, Inc. | Downhole device actuator and method |
US20110042102A1 (en) * | 2009-08-18 | 2011-02-24 | Frank's International, Inc. | Method of and kit for installing a centralizer on a pipe segment |
US8505624B2 (en) * | 2010-12-09 | 2013-08-13 | Halliburton Energy Services, Inc. | Integral pull-through centralizer |
US8833446B2 (en) | 2011-01-25 | 2014-09-16 | Halliburton Energy Services, Inc. | Composite bow centralizer |
US8678096B2 (en) | 2011-01-25 | 2014-03-25 | Halliburton Energy Services, Inc. | Composite bow centralizer |
US8573296B2 (en) | 2011-04-25 | 2013-11-05 | Halliburton Energy Services, Inc. | Limit collar |
US9074430B2 (en) | 2011-09-20 | 2015-07-07 | Halliburton Energy Services, Inc. | Composite limit collar |
RU2475618C1 (en) * | 2011-11-25 | 2013-02-20 | Закрытое акционерное общество "Научно-производственное предприятие "СибБурМаш" | Casing centraliser |
US8960278B2 (en) * | 2012-06-04 | 2015-02-24 | Halliburton Energy Services, Inc. | Pull through centralizer |
US8991487B2 (en) | 2012-06-04 | 2015-03-31 | Halliburton Energy Services, Inc. | Pull through centralizer |
USD918273S1 (en) * | 2019-05-14 | 2021-05-04 | Dana Gonzalez | Shoe and float collar device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4766663A (en) * | 1985-08-16 | 1988-08-30 | Milam Jack J | Method of attaching member to a tubular string |
WO1991008374A2 (en) * | 1989-12-05 | 1991-06-13 | Lasalle Engineering Limited | Apparatus and method for centralising a casing |
US6533034B1 (en) * | 2000-05-15 | 2003-03-18 | Flotek Industries, Inc. | Centralized stop collar for floating centralizer |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2281632A (en) * | 1939-12-05 | 1942-05-05 | Steps Robert Alexander | Jacket for drill pipe couplings |
US2388416A (en) * | 1943-09-17 | 1945-11-06 | Mont C Johnson | Casing centering device |
US2546582A (en) * | 1948-03-01 | 1951-03-27 | Baker Oil Tools Inc | Casing centralizer |
US2652118A (en) * | 1949-07-25 | 1953-09-15 | Hartman William Walter | Basket guide |
US2828824A (en) * | 1955-01-20 | 1958-04-01 | Baker Oil Tools Inc | Stop devices for well conduits |
US2986417A (en) * | 1958-04-14 | 1961-05-30 | Baker Oil Tools Inc | Stop devices for well conduits |
US4658896A (en) * | 1985-08-16 | 1987-04-21 | Milam Jack J | Apparatus for a tubular string and method of attaching the same thereto |
USH1192H (en) * | 1990-10-26 | 1993-06-01 | Exxon Production Research Company | Low-torque centralizer |
US5419395A (en) * | 1993-11-12 | 1995-05-30 | Baker Hughes Incorporated | Eccentric fluid displacement sleeve |
US20020139537A1 (en) * | 2001-04-03 | 2002-10-03 | Young Jimmy Mack | Method for enabling movement of a centralized pipe through a reduced diameter restriction and apparatus therefor |
GB0115704D0 (en) * | 2001-06-27 | 2001-08-22 | Winapex Ltd | Centering device |
US6679325B2 (en) * | 2002-02-08 | 2004-01-20 | Frank's International, Inc. | Minimum clearance bow-spring centralizer |
CA2486279C (en) * | 2003-10-29 | 2010-10-05 | Weatherford/Lamb, Inc. | Vibration damper systems for drilling with casing |
-
2006
- 2006-06-28 US US11/427,251 patent/US20080035331A1/en not_active Abandoned
-
2007
- 2007-05-30 EP EP07797880A patent/EP2035647A1/en not_active Withdrawn
- 2007-05-30 CA CA002654543A patent/CA2654543A1/en not_active Abandoned
- 2007-05-30 WO PCT/US2007/069975 patent/WO2008002739A1/en active Application Filing
- 2007-05-30 BR BRPI0712950-5A patent/BRPI0712950A2/en not_active Application Discontinuation
-
2009
- 2009-01-27 NO NO20090394A patent/NO20090394L/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4766663A (en) * | 1985-08-16 | 1988-08-30 | Milam Jack J | Method of attaching member to a tubular string |
WO1991008374A2 (en) * | 1989-12-05 | 1991-06-13 | Lasalle Engineering Limited | Apparatus and method for centralising a casing |
US6533034B1 (en) * | 2000-05-15 | 2003-03-18 | Flotek Industries, Inc. | Centralized stop collar for floating centralizer |
Also Published As
Publication number | Publication date |
---|---|
CA2654543A1 (en) | 2008-01-03 |
EP2035647A1 (en) | 2009-03-18 |
BRPI0712950A2 (en) | 2012-12-18 |
US20080035331A1 (en) | 2008-02-14 |
NO20090394L (en) | 2009-01-27 |
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