EP0117833A1 - Vorrichtung zur Handhabung von Bohrlochrohren - Google Patents

Vorrichtung zur Handhabung von Bohrlochrohren Download PDF

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Publication number
EP0117833A1
EP0117833A1 EP84630014A EP84630014A EP0117833A1 EP 0117833 A1 EP0117833 A1 EP 0117833A1 EP 84630014 A EP84630014 A EP 84630014A EP 84630014 A EP84630014 A EP 84630014A EP 0117833 A1 EP0117833 A1 EP 0117833A1
Authority
EP
European Patent Office
Prior art keywords
carriage
pipe
post
guide structure
axis
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.)
Withdrawn
Application number
EP84630014A
Other languages
English (en)
French (fr)
Inventor
George I. Boyadjieff
Padmasiri D. Seneviratne
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
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 Varco International Inc filed Critical Varco International Inc
Publication of EP0117833A1 publication Critical patent/EP0117833A1/de
Withdrawn legal-status Critical Current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
    • E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole

Definitions

  • This invention relates to improved apparatus for handling well pipe when a drill string is being removed from or lowered back into a well.
  • this 'round trip' operation requires separation of the string into a series of sections which are temporarily stored in vertical condition at a side of the rig and are then successively lowered back into the well for further drilling.
  • the stored vertical sections may be aligned in rows, with the upper ends of the pipes being held in predetermined positions by a locating rack.
  • the lower ends of the pipe sections are in most instances swung manually from a position of alignment with the well axis to their inactive storage locations, or vice versa. Because of the amount of weight involved in each of the pipe stands, however, such manual movement of the stands renders the conventional handling procedures very difficult, unnecessarily time consuming, and dangerous to personnel on the rig floor.
  • the present invention provides a tool for assisting in this round tripping operation by mechanically moving sections of the drill string in either direction between a position of alignment with the well axis and inactive temporarily stored positions at the side of the well.
  • the apparatus provides effective and positive control of the movement of the well pipe sections, but does so with an extremely simple structure which can be supplied at relatively low cost, and is very straightforward and reliable in its operation. Further, the apparatus is designed to avoid interference with other operations on the rig, and may be converted to reduced dimension condition at an edge of the rig floor when not in use.
  • the device includes a chain or other similar elongated element which is adapted to be connected at one end to a section of drill pipe, and will function by longitudinal movement of the element to exert a pulling force on the pipe section moving it from the location of the well axis toward an inactive storage position.
  • the apparatus includes a guide structure past which the pipe sections are pulled, and which directs the pipe sections toward their inactive positions.
  • the guide structure may be constructed to align the stored pipes in a series of rows, and for this purpose may be attached to a carriage which is movable along a support element to different positions for forming the different rows.
  • a power unit exerts pulling force on the chain to move the pipe sections to their stored positions, or can release the chain for reverse longitudinal movement in allowing the sections to return to the well axis.
  • the guide structure may include a vertically extending post which the chain moves past in pulling the pipe sections to their storage locations, with a generally horizontally extending member preferably being connected to the post and acting to engage and align the sections in stored condition.
  • the well drilling rig 10 represented in Fig. 1 includes a derrick 11 and rig floor 12 supported by a substructure 13 from the ground 14.
  • the drill string 15 is driven rotatively about a vertical axis 16 by a rotary table 17 to drill the well 18.
  • the string may be suspended by travelling block 19 which is actuated upwardly and downwardly relative to crown block 20 by a line 21 actuated by the draw works 22.
  • the rig is illustrated in a condition in which an upper stand or section 23 of the drill pipe has been detached from the rest of the string and is suspended from the travelling block by an elevator 24.
  • the unit 26 includes a preferably hook shaped device 27 for engaging and acting against the lower end of a section of pipe 23, with movement of this hook 27 being effected by an elongated flexible element 28 desirably taking the form of a chain.
  • a guide structure 29 directs the chain and pipe to and from vertically racked condition, and is connected to a carriage 30 for movement therewith relative to a stationary support 31.
  • a power actuated winch 32 mounted to and movable with the carriage pulls chain 28 longitudinally, or releases it for reverse longitudinal movement, to move the pipe.
  • Support 31 may take the form of a horizontal externally cylindrical rigid pipe 33 extending along an axis 34 and supported by two parallel vertical legs 35 which may be formed of externally cylindrical pipe of the same type utilized in formation of horizontal member 33.
  • the legs may be connected to member 33 by two tubular sleeves or bushings 36 and 36' which are welded to the upper ends of the legs and are centered about axis 34.
  • Member 33 is a close sliding fit within cylindrical sleeves 36 and 36' to locate member 33 and guide it for axial retracting movement along axis 34 between the full line active position of Fig. 3, and the broken line inactive position.
  • the lower ends of legs 35 may be removably inserted downwardly into, and be located and supported by, two cylindrical sockets 37 welded to the rig floor 12 (Fig. 4). Sockets 37 act to effectively retain support structure 31 in the illustrated fixed active position on the rig, while permitting support 31 to be detached from the sockets by upward movement of the support in order to enable storage of the entire unit 26 at a different location if desired
  • Member 33 has an annular flange 39 at its left end as viewed in Fig. 3, of a diameter greater than the internal diameter of sleeves 36 and 36', to limit rightward movement of member 33 in the Fig. 3 full line position.
  • a pin 40 which is insertible downwardly through openings at diametrically opposite locations in member 33 and has a head 41 at its upper end supporting the pin and engageable with sleeve 36' to retain member 33 therein.
  • Carriage 30 may be formed of a number of parts welded or otherwise rigidly secured together, typically including a series of parallel vertical plates 42 disposed perpendicular to axis 34, with a tube 43 extending through aligned openings in those plates 42 and welded externally thereto.
  • Tube 43 may be internally cylindrical and of a diameter just slightly greater than the external diameter of member 33, to be guided for movement along axis 34 relative to member 33.
  • Two additional parallel vertical plates 44 and 45 may extend parallel to axis 34 and be welded to the front and rear edges of plates 42 to form an integrated rigid structure including the parts 42, 43, 44 and 45.
  • a clamp 46 is connected to one end of tube 43, and is tightenable against member 33 to releasably lock the carriage in any set position along and relative to member 33.
  • Clamp 46 may include an essentially annular body 47 which is internally cylindrical and of a normal diameter just slightly greater than the external diameter of member 33, and which is retained against rotation relative to tube 43 by a bolt 48 extending through aligned openings in two adjacent similar lugs 49 and 50 formed on parts 47 and 43 respectively.
  • clamping ring 47 is interrupted (at 51 in Fig. 6), with spaced parallel flanges 52 projecting outwardly from opposite ends of ring 47.
  • a clamping screw 53 threadedly engages one of the flanges 52 at 54, and extends through an unthreaded bore in the other flange at 154, and has an annular enlarged diameter portion 153 above the upper flange as viewed in Fig. 6, which clamps the flanges 52 together upon rotation of the screw to tighten ring 45 against member 33 and thus lock the carriage in any set position.
  • the screw is manually rotatable by a handle 55, which may be secured rigidly to the screw in any convenient manner, as by positioning the handle about an upper portion of the screw above enlargement 153 and retaining the handle thereon by a nut 253.
  • a bottom nut 353 may be welded onto the lower end of the screw to prevent complete removal of the screw from flanges 52.
  • Winch 32 may be carried at the underside of carriage 30, for movement therewith, and may be any of various conventional types of power operated units adapted to exert pulling force on chain 28.
  • the winch may include a rigid hollow housing 56 containing a reversible motor represented at 57 driving a wheel 58 having sprocket like irregularities in its outer surface represented at 59 engageable with successive links 60 of chain 28 in a positive drive relation pulling the chain longitudinally in response to rotation of wheel 58.
  • the wheel may be driven at a speed slower than motor 57 through a suitable reduction gear mechanism in the winch.
  • the motor may be driven by any convenient type of power, preferably compressed air, delivered from a suitable source represented at 63 under the control of a valve assembly 64 which may be held by the operator.
  • This control valve assembly 64 may be carried at the end of a flexible line 65, containing passages for delivering air from source 63 to the valve assembly, and from the valve assembly back through line 65 to motor 57, in a manner enabling the operator by actuation of assembly 64 to start, stop and reverse the direction of rotation of the motor.
  • Winch 32 preferably includes an automatic braking mechanism 66 acting when the motor is stopped to automatically lock wheel 58 in any position to which it has turned.
  • Flexible line 65 in extending from the motor and carriage toward control valve unit 64 may first, as represented at 65' in Fig. 5, extend toward the lower end of a tubular element 67, and then pass upwardly through that element and out of its curved upper end 68 to unit 64.
  • Tube 67 and line 65 are so designed as to allow an operator to carry control unit 64 between the location of well axis 16 and all positions of carriage 30, so that he can operate the valves to start, stop and reverse the motor when he is at any of those locations.
  • the guide tube 67 is preferably mounted by a part 69 for essentially universal swinging movement relative to the carriage.
  • Part 69 may be of U-shaped horizontal section, having a front wall 70 and two parallel vertical side walls 71, with tube 67 received between walls 71 and connected thereto by bearings 72 for relative pivotal movement about a horizontal axis 73.
  • a vertical tubular sleeve 74 is welded to part 69 and mounted movably about a cylindrical vertical post 7 rigidly secured to and projecting upwardly from the body of carriage 30 to mount part 69 and the carried tube 67 for swinging movement about a vertical axis 76 relative to the carriage.
  • the attachment of post 75 to the body of the carriage may be made by welding the post to a horizontal plate 77 which is welded to two or more of the plates 42 of the carriage.
  • a counterweight 167 may be carried about the lower end of tube 67 and be of a weight slightly greater than that required to counterbalance the weight of the upper portion of tube 67 and the connected line 65 so that tube 67 will always return to an approximately directly upwardly projecting condition when released by the operator.
  • the hook device 27 for engaging and exerting pulling force on pipe 23 may have the configuration represented in Fig. 3, with a portion 78 of the hook being curved to extend approximately 180 degrees about the pipe as shown.
  • the chain is connected to the hook at 79, and the hook is open at one side to provide a throat 80 through which a pipe can move into or out of the hook.
  • the guide structure 29 which is secured to carriage 30 may include a vertical tubular post 81 formed of a length of internally and externally cylindrical pipe, and having a circular horizontal base plate 82 welded to its lower end for engagement with the rig floor 12.
  • Post 81 may extend directly vertically along an axis 83 parallel to the vertical axis 16 of the well and parallel to the vertical axis of legs 35 of carriage support 31.
  • Chain 28 engages the outer surface of post 81 as illustrated in Figs. 2 and 3, and is deflected along a curving path in passing the post.
  • the guide structure also includes a horizontal guide element 84, which may take the form of an externally cylindrical straight rigid pipe extending along a horizontal axis 85 perpendicular to axis 83 and to axis 34.
  • a first end of guide 84 is welded or otherwise rigidly secured to post 81 near the upper end of the post.
  • the opposite end of guide member 84 is secured rigidly to carriage 30, at least during operation of the mechanism, but may if desired be detachable from the carriage, and/or be movable relative to the carriage to a retracted position when not in use.
  • member 84 may carry two connector lugs 86 projecting in opposite horizontal directions therefrom and containing openings through which two connector pins 87 can extend downwardly. Each of these pins also extends vertically through aligned openings in two connector lugs 88 projecting from the vertical front wall 44 of the carriage.
  • member 84 is connected rigidly to the carriage in the full line position of Fig. 3. If one pin is removed, the member 84 can be swung about the other pin to a retracted position near and parallel to axis 34 (broken line position 84' of Fig. 3). If both pins are removed, member 84 and the connected post 81 are completely detached from the carriage and can be removed to any desired storage location.
  • guide tube 84 In the operative condition of the apparatus, guide tube 84 is so located that its axis 85 does not intersect vertical axis 16 of the well, but rather is offset to the left of axis 16 as viewed in Fig. 3. This relationship assures that chain 28 will be held against post 81 as it extends about that post.
  • the carriage 30 and connected guide structure 29 including post 81 and horizontal member 84 may be in the position illustrated in broken lines at 84" in Fig. 3. While in this position, an initial one of the drill pipe sections 23 may be connected to hook device 27, and the motor of winch 32 may then be energized to pull chain 28 longitudinally toward the winch location. The hook and pipe first move along an angular path toward post 81, and then after passing the post are pulled directly toward the carriage essentially parallel to axis 85.
  • Member 84 guides the pipe along the path indicated by arrow 89 in Fig. 3 and to the location 23'. During such movement, the pipe section is of course suspended by the travelling block, and its upper end is directed into engagement with upper locating unit 25. After a first section has been moved to the position 23', the hook device 24 is detached therefrom, and the chain is pulled back to the well axis to engage a next successive pipe, which is similarly pulled by the chain and winch past the guide post 81 and along guide 84 to a vertical location adjacent the first pipe, as represented at 23" in Fig. 3. Additional pipes are similarly pulled to successive positions, all being guided and located by element 84, to form a first row R of racked pipe sections.
  • clamp 46 is released to allow movement of the carriage and guide structure a short distance to the right in Fig. 3, with the carriage then being locked in that second set position, in which the guide structure is located to direct a second series of pipe sections along the guide structure to form a second row R l of vertically stacked pipes parallel to and closely adjacent row R. Additional rows R 2 , R 3 , etc. of the vertically stacked pipes are formed with the carriage moved to and locked in a series of different set positions along horizontal support member 33. Ultimately, a final series of drill pipe sections are aligned to form a last row of stacked pipe with the carriage and guide structure in the full line position of Fig. 3, and with the carriage at the end of its range of travel along member 33.
  • the weight of the suspended drill pipe section exerts a pulling force on the chain causing it to feed out gradually from the winch with resultant movement of the pipe section 23n past vertical post 81 and back to a position of alignment with the well axis, for connection into the string.
  • the hook device 27 is then detached from the pipe section and connected to a next successive pipe section in the final row of such sections, with the winch being operated in a take-up direction far enough to relieve any slack in the chain, after which the winch is reversed to gradually release the second pipe section for movement along the guide structure and back to the well axis. In this manner, all of the pipe sections in the righthand row of Fig.
  • bottom plate 82 of the guide structure is such as to enable plate 82 to move freely to different positions on the rig floor as the carriage 30 and the connected guide structure are shifted to different positions along axis 34.
  • this conversion may be effected by removing pin 40 from the right end of the member 33 in Fig. 3, so that member 33 and carriage 30 can be moved to their broken line positions of Fig. 3.
  • one of the pins 87 can be removed to permit member 84 and the connected post 81 to be pivoted about the other pin 87 to a position near and parallel to member 33.
  • member 84 and post 81 can be detached completely from the carriage, or the entire unit 26 can be removed bodily from the rig by lifting legs 35 upwardly out of their mounting sockets 37.

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  • 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)
  • Massaging Devices (AREA)
EP84630014A 1983-02-22 1984-02-03 Vorrichtung zur Handhabung von Bohrlochrohren Withdrawn EP0117833A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46857883A 1983-02-22 1983-02-22
US468578 1983-02-22

Publications (1)

Publication Number Publication Date
EP0117833A1 true EP0117833A1 (de) 1984-09-05

Family

ID=23860372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84630014A Withdrawn EP0117833A1 (de) 1983-02-22 1984-02-03 Vorrichtung zur Handhabung von Bohrlochrohren

Country Status (3)

Country Link
EP (1) EP0117833A1 (de)
JP (1) JPS59161588A (de)
NO (1) NO840463L (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004754A1 (en) * 1986-02-03 1987-08-13 Craelius Ab An apparatus in rock drilling machines or the like
WO2009112842A1 (en) * 2008-03-14 2009-09-17 Kt Drilling Consultants Limited Method and apparatus for racking drill pipe stands on a drill floor

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818278A (en) * 1930-09-26 1931-08-11 Robert W Siler Pipe racking device
US2535464A (en) * 1947-04-07 1950-12-26 Claude V Thompson Automatic rotary drill pipe holder
GB655257A (en) * 1946-08-22 1951-07-18 Standard Oil Dev Co Improved apparatus for handling stands of pipe in a derrick
US2692059A (en) * 1953-07-15 1954-10-19 Standard Oil Dev Co Device for positioning pipe in a drilling derrick
US3533516A (en) * 1968-07-26 1970-10-13 William Guier Guide structure for manipulating drill pipe or the like during drilling of earth bores
GB1242503A (en) * 1969-10-14 1971-08-11 Global Marine Inc Improvements in or relating to handling pipes and the like
US4077525A (en) * 1974-11-14 1978-03-07 Lamb Industries, Inc. Derrick mounted apparatus for the manipulation of pipe
US4117941A (en) * 1976-04-01 1978-10-03 Golar-Nor Offshore A/S Device for handling and racking riser pipes and drill pipes
US4274778A (en) * 1979-06-05 1981-06-23 Putnam Paul S Mechanized stand handling apparatus for drilling rigs

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818278A (en) * 1930-09-26 1931-08-11 Robert W Siler Pipe racking device
GB655257A (en) * 1946-08-22 1951-07-18 Standard Oil Dev Co Improved apparatus for handling stands of pipe in a derrick
US2535464A (en) * 1947-04-07 1950-12-26 Claude V Thompson Automatic rotary drill pipe holder
US2692059A (en) * 1953-07-15 1954-10-19 Standard Oil Dev Co Device for positioning pipe in a drilling derrick
US3533516A (en) * 1968-07-26 1970-10-13 William Guier Guide structure for manipulating drill pipe or the like during drilling of earth bores
GB1242503A (en) * 1969-10-14 1971-08-11 Global Marine Inc Improvements in or relating to handling pipes and the like
US4077525A (en) * 1974-11-14 1978-03-07 Lamb Industries, Inc. Derrick mounted apparatus for the manipulation of pipe
US4117941A (en) * 1976-04-01 1978-10-03 Golar-Nor Offshore A/S Device for handling and racking riser pipes and drill pipes
US4274778A (en) * 1979-06-05 1981-06-23 Putnam Paul S Mechanized stand handling apparatus for drilling rigs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004754A1 (en) * 1986-02-03 1987-08-13 Craelius Ab An apparatus in rock drilling machines or the like
AU586080B2 (en) * 1986-02-03 1989-06-29 Diamant Boart Craelius Aktiebolag An apparatus in rock drilling machines or the like
WO2009112842A1 (en) * 2008-03-14 2009-09-17 Kt Drilling Consultants Limited Method and apparatus for racking drill pipe stands on a drill floor
NO343154B1 (no) * 2008-03-14 2018-11-19 Kt Drilling Consultants Ltd Framgangsmåte og apparat for vertikal stabling av borerørseksjoner på et boredekk.

Also Published As

Publication number Publication date
JPS59161588A (ja) 1984-09-12
NO840463L (no) 1984-08-23

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Inventor name: SENEVIRATNE, PADMASIRI D.

Inventor name: BOYADJIEFF, GEORGE I.