EP1588021B1 - Verfahren und vorrichtung zum bohren von in ineinander angeordneten rohren - Google Patents

Verfahren und vorrichtung zum bohren von in ineinander angeordneten rohren Download PDF

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Publication number
EP1588021B1
EP1588021B1 EP04701709A EP04701709A EP1588021B1 EP 1588021 B1 EP1588021 B1 EP 1588021B1 EP 04701709 A EP04701709 A EP 04701709A EP 04701709 A EP04701709 A EP 04701709A EP 1588021 B1 EP1588021 B1 EP 1588021B1
Authority
EP
European Patent Office
Prior art keywords
feed
drill bit
drilling
pressure fluid
valve
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.)
Expired - Lifetime
Application number
EP04701709A
Other languages
English (en)
French (fr)
Other versions
EP1588021A1 (de
Inventor
Tor H. Johannessen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norse Cutting and Abandonment AS
Original Assignee
Norse Cutting and Abandonment AS
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
Application filed by Norse Cutting and Abandonment AS filed Critical Norse Cutting and Abandonment AS
Publication of EP1588021A1 publication Critical patent/EP1588021A1/de
Application granted granted Critical
Publication of EP1588021B1 publication Critical patent/EP1588021B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/04—Automatic control of the tool feed in response to the torque of the drive ; Measuring drilling torque

Definitions

  • This invention relates to a method for drilling into tubulars which are located within one another. More specifically, it relates to a method for reducing drilling time when drilling through at least one pipe wall and there in an annulus within the pipe wall is a fluid or a material which in comparison to the pipe wall material is easier to drill.
  • the invention also comprises a device for carrying out the method.
  • the internal pipes may become displaced axially and/or radially in relation to the external pipe during the sawing operation. The displacement may cause damage to the sawing device that is being used.
  • one or more drilling devices are placeded mainly in a radial direction on the casing surface of the external pipe.
  • the drilling device may be hydraulically driven with regards to both rotation and feeding.
  • the drill bit of the drilling device is fed at a certain rate when rotating through the external pipe, the material located in the external annulus, and potentially further on through the pipe within, the next annulus and so on till the innermost pipe where the drill can be used for bracing by means of the feed power or for drilling through the pipe wall of the innermost pipe as well. Then, the drill may be used for bracing or it may be replaced with for instance a shaft to brace the pipes.
  • Drilling operations in accordance with prior art take unnecessary long time because the drill is running at an approximately constant feed speed during the entire drilling operation.
  • the object of this invention is to remedy the disadvantages of the prior art.
  • the drill bit can be fed at a significantly higher rate when it is working for example within concrete, compared to the feed speed which is appropriate for drilling in the pipe wall material.
  • a valve for additional supply of hydraulic fluid to the feed cylinders of the drilling device is opened without disrupting the choke valve or constant pressure valve that is used to adjust the feed speed of the sawing device for drilling through the pipe wall material.
  • the rotational resistance of the drill is then increased, and a corresponding higher pressure can be read in the hydraulic circuit for drill bit rotation.
  • the additional pressure fluid supply is shut off, whereby the drill bit continues to drill through the pipe wall material at the preset feed speed.
  • the method is repeated for any annuli and pipe walls located within.
  • the drilling time for perforating pipes containing other pipes within can be significantly reduced.
  • the method may contribute to considerable cost savings, as the hourly rates for this type of work, including hiring a drilling rig, are relatively high.
  • the reference number 1 denotes a drilling device provided with a drill bit 2 which is secured to an external tubular 6 by means of a fastening device 4.
  • the spaces between the tubulars 6, 8 and 10 constitute an external annulus 12 and an internal annulus 14.
  • the annuli 12 and 14 are filled with concrete.
  • the drilling device 1 comprises a feed rod 22 which is connected to the drill bit 2 by means of an adapter 20.
  • the feed rod 22 is axially displaceable in the housing 24 of the drilling device 1 by means of two feed cylinders 26.
  • the feed cylinders 26 are connected between the housing 24 and an axial bearing 28 placed around the feed rod 22.
  • Two hydraulic driving motors 30 are connected to the housing 24 and encircle the feed rod 22 in an axially displaceable manner.
  • the drilling device 1 is controlled by means of a rotary valve 40 and a feed valve 42.
  • the valves 40 and 42 are located at a safe distance from the drilling device 1 and supplied with pressure fluid from a hydraulic pump (not shown). From the rotary valve 40 hydraulic pipes 44 pass via quick release couplings 46 to the driving motors 30.
  • a hydraulic feed line 48 connects the feed valve 42 via a quick release coupling 50 and a choke valve 52 to the feed side of the feed cylinders 26.
  • the return side of the feed cylinders 26 is connected to the feed valve 42 by means of a hydraulic return line 54 and a quick release coupling 56.
  • a quick feed valve 58 is connected to the hydraulic feed line 48 at the feed valve 42. From the quick feed valve 58, a quick feed hydraulic line 60 passes via a quick release coupling 62 to the hydraulic feed line 48 in the area between the choke valve 52 and the feed cylinders 26.
  • the quick release couplings 46, 50, 56 and 62 are arranged to facilitate the assembly of the drilling device 1.
  • the desired feed speed for the drill bit 2 is adjusted by regulating the choke valve 52, preferably before the drilling operations commence.
  • the rotation of the drill bit 2 is initiated by setting the rotary valve 40 to operating position. Pressure fluid then flows through the rotary valve 40 and the driving motors 30 via the hydraulic lines 44 and the quick release couplings 46.
  • the driving motors 30 rotate the feed rod 22 and thus the drill bit 2 around its own longitudinal axis.
  • the feeding of the drill bit 2 is initiated by setting the feed valve 42 to its feeding position. By doing so, pressure fluid flows from the feed valve 42 via the hydraulic feed line 48, the quick release coupling 50 and the choke valve 42 to the feed side of the feed cylinders, as the feed cylinders displace the axial bearing 28 and thus the feed rod 22 and the drill bit 2 in a direction in and towards the external tubular 6.
  • the quick feed valve 58 By opening the quick feed valve 58, pressure fluid flows to the feed side of the feed cylinders 26 through the hydraulic quick feed line 60 and the quick release coupling 62 bypassing the choke valve 52.
  • the drill bit 2 is fed quicker through the concrete in the external annulus 12, cf. the drill bit 2 belonging to the lower drilling device in figure 1.
  • the rotational resistance in the drill bit 2 is increased.
  • the corresponding increase in pressure can be read from the manometer 64.
  • the quick feed valve 58 is shut, whereby the feed speed of the drill bit 2 through the pipe wall of the intermediate tubular 8 is reduced to the preset value on the choke valve 52.
  • the feed speed is increased when drilling through the internal annulus 14 and possibly through the annulus of the internal pipe 10.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling And Boring (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (4)

  1. Verfahren für eine Bohrvorrichtung (1) zum Erhöhen der Zufuhrgeschwindigkeit einer Bohrspitze (2) beim Bohren durch ineinander angeordnete Rohre (6, 8, 10), in den zwischen den Rohren erzeugten Ringen (12, 14) befindet sich ein Fluid oder Material, welches im Vergleich zum Rohrwandmaterial leichter zu bohren ist, die Zufuhrgeschwindigkeit der Bohrspitze (2) wird durch ein vorzugsweise benachbart der Bohrvorrichtung (2) angeordnetes Fluiddruckregelventil (52) gesteuert, dadurch gekennzeichnet, dass während des Vortriebs der Bohrspitze (2) durch die Ringe (12, 14) ein Zustrom von Druckfluid parallel zum Fluiddruckregelventil (52) erfolgt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Zustrom von Druckfluid durch Öffnen eines in sicherer Entfernung von der Bohrvorrichtung (1) angeordneten Ventils (58) eingeleitet wird.
  3. Vorrichtung für eine Bohrvorrichtung (1) zum Erhöhen der Zufuhrgeschwindigkeit einer Bohrspitze (2) beim Bohren durch ineinander angeordnete Rohre (6, 8, 10), in den zwischen den Rohren erzeugten Ringen (12, 14) befindet sich ein Fluid oder Material, welches im Vergleich zum Rohrwandmaterial leichter zu bohren ist, die Zufuhrgeschwindigkeit der Bohrspitze (2) wird durch ein mit einer Hydraulik-Speiseleitung (48) verbundenes Fluiddruckregelventil (52) gesteuert, wobei die Hydraulik-Zufuhrleitung (48) von einem Speiseventil (42) zu einem Zufuhrzylinder (26) verläuft, und wobei das Fluiddruckregelventil (52) vorzugsweise benachbart der Bohrvorrichtung (2) angeordnet ist, dadurch gekennzeichnet, dass eine mit einem Absperrventil (58) versehene, parallel zur Hydraulik-Zufuhrleitung (48) verlaufende und oberhalb und unterhalb des Fluiddruckregelventils (52) mit dieser verbundene Hydraulik-Schnellzufuhrleitung (60) vorgesehen ist.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Absperrventil (58) in sicherer Entfernung von der Bohrvorrichtung (1) angeordnet ist.
EP04701709A 2003-01-13 2004-01-13 Verfahren und vorrichtung zum bohren von in ineinander angeordneten rohren Expired - Lifetime EP1588021B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20030149A NO317433B1 (no) 2003-01-13 2003-01-13 Fremgangsmate og anordning for boring i inne i hverandre seg befinnende ror
FI20030149 2003-01-13
PCT/NO2004/000005 WO2004063525A1 (en) 2003-01-13 2004-01-13 A method and device for drilling into tubulars located within one another

Publications (2)

Publication Number Publication Date
EP1588021A1 EP1588021A1 (de) 2005-10-26
EP1588021B1 true EP1588021B1 (de) 2006-08-02

Family

ID=19914372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04701709A Expired - Lifetime EP1588021B1 (de) 2003-01-13 2004-01-13 Verfahren und vorrichtung zum bohren von in ineinander angeordneten rohren

Country Status (8)

Country Link
US (1) US20060231291A1 (de)
EP (1) EP1588021B1 (de)
AT (1) ATE335122T1 (de)
BR (1) BRPI0406732A (de)
DE (1) DE602004001756D1 (de)
DK (1) DK1588021T3 (de)
NO (1) NO317433B1 (de)
WO (1) WO2004063525A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8869916B2 (en) 2010-09-09 2014-10-28 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
US9016400B2 (en) 2010-09-09 2015-04-28 National Oilwell Varco, L.P. Downhole rotary drilling apparatus with formation-interfacing members and control system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946793B2 (en) 2008-03-28 2011-05-24 Fastorq, Llc Apparatus for drilling colinear holes through concentric pipes
CN103406939B (zh) * 2013-07-19 2016-03-30 广东联塑科技实业有限公司 一种pvc渗漏管制作装置
US12460516B1 (en) * 2020-12-09 2025-11-04 Roscoe Moss Manufacturing Company System, apparatus, and method for louver perforation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903697A (en) * 1974-07-24 1975-09-09 Azcon Corp Variable speed hydraulic drive
US4271914A (en) * 1976-12-02 1981-06-09 The United States Of America As Represented By The Secretary Of The Interior Automatic feed and rotational speed control system of a hydraulic motor operated drill
US4185652A (en) * 1977-10-31 1980-01-29 Nl Industries, Inc. Subaqueous sequence valve mechanism
US4226288A (en) * 1978-05-05 1980-10-07 California Institute Of Technology Side hole drilling in boreholes
US4619556A (en) * 1983-11-14 1986-10-28 Parra Ernest P Method and apparatus for severing a tubular member
US5392858A (en) * 1994-04-15 1995-02-28 Penetrators, Inc. Milling apparatus and method for well casing
US5564455A (en) * 1995-01-06 1996-10-15 The Charles Machine Works, Inc. Hydraulic circuit for automatic control of a horizontal boring machine
US5687806A (en) * 1996-02-20 1997-11-18 Gas Research Institute Method and apparatus for drilling with a flexible shaft while using hydraulic assistance
US6155343A (en) * 1996-10-25 2000-12-05 Baker Hughes Incorporated System for cutting materials in wellbores
US6167968B1 (en) * 1998-05-05 2001-01-02 Penetrators Canada, Inc. Method and apparatus for radially drilling through well casing and formation
DE19924200B4 (de) * 1999-05-27 2004-07-15 Wolfgang Schmidt E.K. Drehzahl-Vorschubregelung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8869916B2 (en) 2010-09-09 2014-10-28 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
US9016400B2 (en) 2010-09-09 2015-04-28 National Oilwell Varco, L.P. Downhole rotary drilling apparatus with formation-interfacing members and control system
US9476263B2 (en) 2010-09-09 2016-10-25 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter

Also Published As

Publication number Publication date
ATE335122T1 (de) 2006-08-15
US20060231291A1 (en) 2006-10-19
WO2004063525A1 (en) 2004-07-29
EP1588021A1 (de) 2005-10-26
DE602004001756D1 (de) 2006-09-14
NO20030149D0 (no) 2003-01-13
NO317433B1 (no) 2004-10-25
DK1588021T3 (da) 2006-12-04
BRPI0406732A (pt) 2005-12-20

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