WO2000031373A1 - A method for mounting a casing shoe on a drilling apparatus - Google Patents

A method for mounting a casing shoe on a drilling apparatus Download PDF

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Publication number
WO2000031373A1
WO2000031373A1 PCT/FI1998/000913 FI9800913W WO0031373A1 WO 2000031373 A1 WO2000031373 A1 WO 2000031373A1 FI 9800913 W FI9800913 W FI 9800913W WO 0031373 A1 WO0031373 A1 WO 0031373A1
Authority
WO
WIPO (PCT)
Prior art keywords
shoe
drilling apparatus
drilling
groove
shrunk
Prior art date
Application number
PCT/FI1998/000913
Other languages
English (en)
French (fr)
Inventor
Valto ILOMÄKI
Original Assignee
Ilomaeki Valto
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8556733&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2000031373(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ilomaeki Valto filed Critical Ilomaeki Valto
Priority to PCT/FI1998/000913 priority Critical patent/WO2000031373A1/fi
Priority to EP98955619A priority patent/EP1144797B1/en
Priority to DE69831021T priority patent/DE69831021T2/de
Publication of WO2000031373A1 publication Critical patent/WO2000031373A1/fi
Priority to US09/863,000 priority patent/US20020033078A1/en

Links

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/14—Casing shoes for the protection of the bottom of the casing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming

Definitions

  • the invention relates to the mounting of a casing shoe around a cylindrical drilling apparatus, which shoe is used by drilling and pulled into the ground on drilling.
  • Previously known, among other things, from Finish patent specification 86571 is a casing shoe around a cylindrical drill where on the drill periphery there is a grooving, in which the welded ring of the casing shoe is installed.
  • the drill can rotate with respect to the ring and also move axially determined by the groove.
  • the ring is formed of two halves by welding in the groove as a complete ring, further the ring is welded on the casing or the shoe .
  • the ring to be fitted in the groove must be of made two halves so that it can be installed in the groove, or the whole shoe must be cleaved longitudinally as equal halves and welded together around the drilling apparatus in order to produce a- shoulder to restrict axial motions.
  • the shoe has no welds, since the shoulder in the shoe, is produced by turning or shaping.
  • the method solves all problems and the method is characterized in what is presented in the patent claims.
  • Fig. 1 shows the shoe to be pushed into the tool, and the drilling apparatus
  • Fig. 2 shows the shoe shrunk in the tool around the drilling apparatus .
  • Fig. 3 shows the openable ring utilized for mounting.
  • Fig. 4 shows shrinking of shoe by means of clamp jaws.
  • Figure 1 is a drilling apparatus furnished with a transverse groove 9, into which the shoulder 8 of shoe 4 is to be fitted. Further, the whole shoe 4 should be shrunk to a diameter size distinctively smaller than the outer diameter size Du of drilling apparatus 2 so that the shoe could advance in the drilled borehole.
  • the casing to be pulled into the borehole is welded as a butted joint or a lap joint in the rear edge of the shoe.
  • the shoe is turned to such a diameter that it can be slid into a position around the drilling apparatus as shown in figure 1.
  • a two-piece ring as per figure 3 is placed, which by means of joint 7 can be both fitted in and taken off groove 9.
  • Tool 5 is a shrinking tool comprised of a conical portion 6 that causes the shrinking of the shoe.
  • the drilling apparatus and the shoe are pressed into tool 5 till shoe 4 is fully in the cylindrical portion Ds of the tool.
  • the shoe is shrunk to a diameter size of Ds, fitted to be distinctively smaller than Du, which is the diameter size of the drilling apparatus and also the borehole diameter.
  • Du which is the diameter size of the drilling apparatus and also the borehole diameter.
  • shrinking can be carried out by pushing drilling apparatus 2 and, in spite of its bigger diameter the drilling apparatus does not yet reach the conical surface 6 of tool 5, even though shoe 4 has not fully passed the conical surface. Pushing can be stopped at this point and the shoe and drilling apparatus pushed back from the tool.
  • Shoe 4 has then become formed through shrinking to its diameter size Ds and locked by means of shoulder 8 into groove 9, and the joint is ready.
  • the shoe shrinkage is produced by a tool and the tool dimensioned so that after shrinking there will remain between shoe a clear sliding fit.
  • the sliding fit allows mutual rotation and axial motion between shoe and drilling apparatus.
  • the shoulder 8 is locked in groove 9 to endure loads caused by pulling the casing.
  • Figure 4 shows the shrinking of shoe 4 by multi-jaw squeezing with the shoe in proper position around the drilling apparatus. Shoulder 8 takes then its place in groove 9.
  • the shoe is shrunk ab. 2 to 8 % of the diameter in the embodiment, where the shoe retains it form during shrinking. Usually, the shoe is then shrunk all over. If the shoe is formed beforehand to a smaller diameter as to its rear edge, the shoe is shrunk at least on the portion, where the shoulder is formed. Shoe shrinking elsewhere is then not necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
PCT/FI1998/000913 1998-11-23 1998-11-23 A method for mounting a casing shoe on a drilling apparatus WO2000031373A1 (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/FI1998/000913 WO2000031373A1 (fi) 1998-11-23 1998-11-23 A method for mounting a casing shoe on a drilling apparatus
EP98955619A EP1144797B1 (en) 1998-11-23 1998-11-23 A method for mounting a casing shoe on a drilling apparatus
DE69831021T DE69831021T2 (de) 1998-11-23 1998-11-23 Verfahren zum anbringen eines futterrohrschuhs an einer bohrvorrichtung
US09/863,000 US20020033078A1 (en) 1998-11-23 2001-05-23 Method for mounting a casing shoe on a drilling appatatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI1998/000913 WO2000031373A1 (fi) 1998-11-23 1998-11-23 A method for mounting a casing shoe on a drilling apparatus

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/863,000 Continuation US20020033078A1 (en) 1998-11-23 2001-05-23 Method for mounting a casing shoe on a drilling appatatus

Publications (1)

Publication Number Publication Date
WO2000031373A1 true WO2000031373A1 (fi) 2000-06-02

Family

ID=8556733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1998/000913 WO2000031373A1 (fi) 1998-11-23 1998-11-23 A method for mounting a casing shoe on a drilling apparatus

Country Status (4)

Country Link
US (1) US20020033078A1 (fi)
EP (1) EP1144797B1 (fi)
DE (1) DE69831021T2 (fi)
WO (1) WO2000031373A1 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20070540A0 (fi) * 2007-07-10 2007-07-10 Robit Rocktools Ltd Teräsovitelma
EP3011127B1 (en) * 2013-07-26 2022-01-19 TerraRoc Finland Oy Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009274A (en) * 1989-04-05 1991-04-23 Uniroc Aktiebolag Laterally adjustable drilling tool
WO1995034740A1 (en) * 1994-06-10 1995-12-21 Ilomaeki Valto Drilling apparatus
WO1996004456A1 (en) * 1994-08-03 1996-02-15 Ilomaeki Valto A drilling apparatus
WO1996015351A1 (en) * 1994-11-14 1996-05-23 Ilomaeki Valto A drilling apparatus bit assembly and method to remove drill waste
WO1996018798A1 (en) * 1994-12-13 1996-06-20 Ilomaeki Valto A drilling method and bit assembly to realize the method

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813301A (en) 1956-06-29 1959-05-13 Schoeller Bleckmann Stahlwerke A drill pipe joint, particularly between drill stems
GB857630A (en) 1958-02-26 1961-01-04 American Iron & Machine Works Pipe connection
GB860768A (en) 1958-04-04 1961-02-08 Electrochimie Electrometallurg Improvements in or relating to a method of manufacturing rock and like drills and tosuch drills
GB1111593A (en) 1964-09-25 1968-05-01 Nat Res Dev Improvements in or relating to the securing of sleeves in cylinder bores
AT282258B (de) 1968-02-08 1970-06-25 Wizemann & Co J Stößelstange
DE2133525A1 (de) 1971-07-06 1973-01-25 Kloeckner Humboldt Deutz Ag Verfahren zur herstellung eines anschlussgewindes an rohrenden
US3792603A (en) 1972-07-26 1974-02-19 Glaenzer Spicer Sa Apparatus for assembling two parts into interlocked and interfitting relationship
NL175040C (nl) 1974-08-19 1984-09-17 Durofac Kartro As Booropneeminrichting voor een klopboormachine.
US4157122A (en) 1977-06-22 1979-06-05 Morris William A Rotary earth boring drill and method of assembly thereof
ZA8400569B (en) 1981-08-24 Stratoflex, Inc. Hose fitting and method of assembly
US4453854A (en) 1983-02-22 1984-06-12 Fansteel Inc. Unitized drill steel and method of manufacturing
FR2544645B1 (fr) 1983-04-20 1986-05-30 Cegedur Methode d'assemblage d'un element annulaire sur un tube metallique en aluminium ou un de ses alliages
FR2553690B1 (fr) 1983-10-21 1986-09-12 Cegedur Methode d'assemblage d'un tube mince dans une plaque ou un manchon
WO1990012237A1 (en) 1989-04-10 1990-10-18 Raychem Corporation Method of applying axial force between two objects
US5150636A (en) 1991-06-28 1992-09-29 Loudon Enterprises, Inc. Rock drill bit and method of making same
FR2687594B1 (fr) 1992-02-25 1994-04-08 Gec Alsthom Sa Procede de fixation d'une butee sur un tube et tube muni d'une butee realisee selon le procede.
SE9200563L (sv) 1992-02-25 1993-07-26 Oesten Edman Saett att utfoera borrning i jordlager samt slagsko foer saettet
FR2708055B1 (fr) 1993-07-19 1995-08-25 Inst Francais Du Petrole Dispositif de liaison pour tige composite.
US5441121A (en) 1993-12-22 1995-08-15 Baker Hughes, Inc. Earth boring drill bit with shell supporting an external drilling surface
SE9401349D0 (sv) 1994-04-21 1994-04-21 Atlas Copco Rocktech Ab Foderrör med slagsko
IT233462Y1 (it) 1994-06-02 2000-01-28 Hydrofit Spa Raccordo tubolare a dado girevole perfezionato, particolarmente per tubi flessibili oleodinamici e simili
GB9504968D0 (en) 1995-03-11 1995-04-26 Brit Bit Limited Improved casing shoe
US5685057A (en) 1995-05-01 1997-11-11 Cbc Industries, Inc. Drill bushing assembly and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009274A (en) * 1989-04-05 1991-04-23 Uniroc Aktiebolag Laterally adjustable drilling tool
WO1995034740A1 (en) * 1994-06-10 1995-12-21 Ilomaeki Valto Drilling apparatus
WO1996004456A1 (en) * 1994-08-03 1996-02-15 Ilomaeki Valto A drilling apparatus
WO1996015351A1 (en) * 1994-11-14 1996-05-23 Ilomaeki Valto A drilling apparatus bit assembly and method to remove drill waste
WO1996018798A1 (en) * 1994-12-13 1996-06-20 Ilomaeki Valto A drilling method and bit assembly to realize the method

Also Published As

Publication number Publication date
US20020033078A1 (en) 2002-03-21
EP1144797B1 (en) 2005-07-27
DE69831021T2 (de) 2006-04-20
EP1144797A1 (en) 2001-10-17
DE69831021D1 (de) 2005-09-01

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