EP0162001A1 - Bohrvorrichtung mit oberem Antrieb und Zangenvorrichtung - Google Patents

Bohrvorrichtung mit oberem Antrieb und Zangenvorrichtung Download PDF

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Publication number
EP0162001A1
EP0162001A1 EP85630050A EP85630050A EP0162001A1 EP 0162001 A1 EP0162001 A1 EP 0162001A1 EP 85630050 A EP85630050 A EP 85630050A EP 85630050 A EP85630050 A EP 85630050A EP 0162001 A1 EP0162001 A1 EP 0162001A1
Authority
EP
European Patent Office
Prior art keywords
wrench assembly
drill string
stem
carriage
drive unit
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.)
Granted
Application number
EP85630050A
Other languages
English (en)
French (fr)
Other versions
EP0162001B1 (de
Inventor
Horace Ashell Johnson
Roger Smith, Jr.
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.)
Varco International Inc
Original Assignee
Varco International Inc
Hughes Tool Co
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=24405689&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0162001(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Varco International Inc, Hughes Tool Co filed Critical Varco International Inc
Publication of EP0162001A1 publication Critical patent/EP0162001A1/de
Application granted granted Critical
Publication of EP0162001B1 publication Critical patent/EP0162001B1/de
Expired 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions

Definitions

  • This invention relates in general to a well drilling apparatus and in particular to a top drive well drilling apparatus.
  • a top drive drilling system rotates a drill string from the top, rather than using a rotary table, a kelly, and a kelly bushing.
  • An electric drilling motor is suspended from the drilling rig's conventional swivel and is attached to the top of the drill string.
  • the drilling motor may also be attached to a carriage, which is guided by a pair of vertical tracks.
  • the drilling motor is connected to the drill string by a cylindrical stem, which extends downward from the motor.
  • a wrench assembly is also suspended from the drilling motor, in order to break out or make up connections between the stem and the drill string.
  • a drill pipe elevator is suspended by links below the bottom of the stem. As the drill string is drilled down, the elevator will contact the floor of the drilling rig. If the elevator and the wrench assembly could be moved out of the way, the drill string could be drilled down further before additional lengths of pipe must be added to the drill string.
  • the present invention is a top drive well drilling apparatus in which the wrench assembly is mounted on a carriage and can be retracted away from the stem and the drill string.
  • the wrench assembly can be moved between a working position over well center and a retracted position away from well center.
  • the wrench assembly can also move vertically.
  • FIG. 1 illustrates a top drive well drilling apparatus of the invention.
  • a conventional traveling block 13 and a conventional hook 15 are suspended by cables 17 from the top of an oil well derrick.
  • a drive unit 19 is suspended from the hook 15 and mounted on a carriage 21.
  • the drive unit 19 is a drilling motor of a conventional type.
  • the carriage 21 guides the drive unit 19 up and down along a pair of vertical guide tracks 23.
  • a cylindrical quill, or stem 25, extends downward from the drive unit 19, and connects to the top of a drill string 27.
  • the drill string 27 consists of a series of pipe sections and has a rotary rock bit attached at the bottom for drilling a well bore.
  • a wrench assembly 29 is provided for making up the connection between the stem 25 and the drill string 27.
  • the wrench assembly is mounted to the carriage 21, and is capable of moving between a working position along the stem 25, or the axis of the drill string 27, and a retracted position away from the axis of the drill string 27.
  • the wrench assembly 29 is also capable of moving vertically along the stem 25 and the drill string 27.
  • FIGS 2 and 3 are close-up views of the carriage 21 and the wrench assembly 29.
  • the wrench assembly 29 has a top wrench 33 and a bottom wrench 35. These wrenches 33, 35 may be open-faced, but preferably have a load-bearing gate.
  • the top wrench 33 is a spline wrench and is adapted to engage the stem 25.
  • the bottom wrench 35 has grippers and is adapted to engage the drill string 27.
  • the wrenches 33,35 can thus be used to make up or break out connections between the stem 25 and the drill string 27 in a manner well known in the art.
  • the wrench assembly 29 can also be used to make up or break out connections between various subs between the stem 25 and the drill string 27, such as kelly cocks.
  • the wrench assembly 29 is carried by a C-shaped bracket 37.
  • This bracket 37 has a T-shaped flange 39, which fits within a slot 41 on the bottom of a vertically movable inner tube 43.
  • the bracket 37 is also connected to a hydraulic cylinder 45, which is secured to a flange 47 extending down from the inner tube 43.
  • the inner tube 43 passes upward between a set of rollers 49 into an outer tube 51.
  • the inner tube 43 continues upward, out of the outer tube 51, and between a second set of rollers 53.
  • the outer tube 51 is welded to the frame 55 of the carriage 21, and the inner tube 43 is movable vertically through the outer tube 51.
  • a pair of chains 57 are attached to brackets 59 on each side of the inner tube 43.
  • Each chain 57 extends upward, around a pulley 61, and then downward to a bracket 63 on the carriage 21.
  • the bracket 37 , the inner tube 43, and the chains 57 are thus a means for mounting the wrench assembly 29 on the carriage 21.
  • the pulleys 61 are each mounted on the lower ends of hydraulic cylinders 65, the upper ends of which are connected to the carriage 21.
  • the carriage 21 has a plurality of wheels 67, which guide the carriage 21 along the guide tracks 23.
  • the hydraulic cylinder 45 connected to the wrench assembly bracket 37 is a means for moving the wrench assembly 29 between a working position along the axis of the drill string 27 and a retracted position away from the axis of the drill string 27.
  • Figure 2 illustrates the wrench assembly 29 in the working position, with the hydraulic cylinder 45 fully extended. As the cylinder 45 is retracted, the bracket 37 and the wrench assembly 29 are moved to the retracted position. When the cylinder 29 is extended, the bracket 37 and wrench assembly 29 are returned to the working position.
  • the hydraulic cylinders 65 attached to the carriage 21 are a means for moving the wrench assembly 29 vertically, relative to the stem 25.
  • Figures 2 and 3 illustrate the wrench assembly 29 in the uppermost position relative to the stem 25, and the cylinders 75 are fully retracted.
  • the cylinders 65 are extended.
  • the chains 55 and pulleys 61 create a two to one ratio between the movement of the wrench assembly 29 and the movement of the pulleys 61. For example, if the cylinders 65 are extended to move the pulleys 61 downwards four feet , the wrench assembly 29 will be moved downward a distance of eight feet.
  • the well drilling apparatus of the invention has an improved wrench assembly 29, which provides several advantages over the prior art.
  • the capability of moving vertically enables the wrench assembly 29 to break connections at several points along the stem 25 and drill string 27, and the break out can be performed anywhere in the derrick.
  • the retractability of the wrench assembly 29 enables the wrenches 33,35 to get around obstacles along the axis of the stem 25, such as kelly cocks.
  • the hydraulic cylinders 65 attached to the carriage 21 are a means for moving the wrench assembly 29 vertically, relative to the stem 25.
  • Figures 2 and 3 illustrate the wrench assembly 29 in the uppermost position relative to the stem 25, and the cylinders 75 are fully retracted .
  • the cylinders 65 are extended.
  • the chains 55 and pulleys 6 ; 1 create a two to one ratio between the movement of the wrench assembly 29 and the movement of the pulleys 61. For example, if the cylinders 65 are extended to move the pulleys 61 downwards four feet, the wrench assembly 29 will be moved downward a distance of eight feet.
  • the well drilling apparatus of the invention has an improved wrench assembly 29, which provides several advantages over the prior art.
  • the capability of moving vertically enables the wrench assembly 29 to break connections at several points along the stem 25 and drill string 27, and the break out can be performed anywhere in the derrick.
  • the retractability of the wrench assembly 29 enables the wrenches 33,35 to get around obstacles along the axis of the stem 25, such as kelly cocks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Paper (AREA)
  • Drilling And Boring (AREA)
EP19850630050 1984-04-16 1985-04-04 Bohrvorrichtung mit oberem Antrieb und Zangenvorrichtung Expired EP0162001B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60093984A 1984-04-16 1984-04-16
US600939 2003-06-20

Publications (2)

Publication Number Publication Date
EP0162001A1 true EP0162001A1 (de) 1985-11-21
EP0162001B1 EP0162001B1 (de) 1989-08-30

Family

ID=24405689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850630050 Expired EP0162001B1 (de) 1984-04-16 1985-04-04 Bohrvorrichtung mit oberem Antrieb und Zangenvorrichtung

Country Status (4)

Country Link
EP (1) EP0162001B1 (de)
CA (1) CA1227189A (de)
DE (1) DE3572709D1 (de)
NO (1) NO165123C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8534387B2 (en) 2006-06-19 2013-09-17 National Oilwell Norway As Drawworks device on a drill floor
US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527309A (en) * 1968-10-08 1970-09-08 Central Mine Equipment Co Vehicle-mounted earth drill with detachable tower
FR1603776A (de) * 1967-12-04 1971-05-24
US3808916A (en) * 1970-09-24 1974-05-07 Robbins & Ass J Earth drilling machine
US4345493A (en) * 1980-10-22 1982-08-24 Central Mine Equipment Company Drill rod holding and break-out device
FR2531479A1 (fr) * 1982-08-03 1984-02-10 Varco Int Forage de puits avec unite de commande au sommet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1603776A (de) * 1967-12-04 1971-05-24
US3527309A (en) * 1968-10-08 1970-09-08 Central Mine Equipment Co Vehicle-mounted earth drill with detachable tower
US3808916A (en) * 1970-09-24 1974-05-07 Robbins & Ass J Earth drilling machine
US4345493A (en) * 1980-10-22 1982-08-24 Central Mine Equipment Company Drill rod holding and break-out device
FR2531479A1 (fr) * 1982-08-03 1984-02-10 Varco Int Forage de puits avec unite de commande au sommet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8534387B2 (en) 2006-06-19 2013-09-17 National Oilwell Norway As Drawworks device on a drill floor
US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus
US11136837B2 (en) 2017-01-18 2021-10-05 Minex Crc Ltd Mobile coiled tubing drilling apparatus

Also Published As

Publication number Publication date
NO851486L (no) 1985-10-17
NO165123B (no) 1990-09-17
EP0162001B1 (de) 1989-08-30
CA1227189A (en) 1987-09-22
DE3572709D1 (en) 1989-10-05
NO165123C (no) 1993-05-13

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