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WO2012166864A2 - Systèmes et procédés pour limiter un dépassement de treuil - Google Patents

Systèmes et procédés pour limiter un dépassement de treuil Download PDF

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Publication number
WO2012166864A2
WO2012166864A2 PCT/US2012/040133 US2012040133W WO2012166864A2 WO 2012166864 A2 WO2012166864 A2 WO 2012166864A2 US 2012040133 W US2012040133 W US 2012040133W WO 2012166864 A2 WO2012166864 A2 WO 2012166864A2
Authority
WO
WIPO (PCT)
Prior art keywords
winch drum
winch
transponder
rotation
retrieval system
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.)
Ceased
Application number
PCT/US2012/040133
Other languages
English (en)
Other versions
WO2012166864A3 (fr
Inventor
Adam John RIBOLDI
Fernando Fidel Aleite ESCUDERO
Michael Luke PEARCE
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.)
Longyear TM Inc
Original Assignee
Longyear TM 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 Longyear TM Inc filed Critical Longyear TM Inc
Priority to CN201280026676.7A priority Critical patent/CN103562120A/zh
Priority to CA2836788A priority patent/CA2836788A1/fr
Priority to EP12793305.9A priority patent/EP2714572A2/fr
Priority to AU2012262191A priority patent/AU2012262191A1/en
Publication of WO2012166864A2 publication Critical patent/WO2012166864A2/fr
Publication of WO2012166864A3 publication Critical patent/WO2012166864A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/008—Winding units, specially adapted for drilling operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • B66D1/56—Adaptations of limit switches
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe

Definitions

  • This application relates generally to drilling systems and methods and, more particularly, to wireline drilling systems and methods.
  • Exploration drilling often includes retrieving a sample from a formation. The retrieved sample can then be evaluated to determine its contents.
  • a drill string can be used to retrieve a sample from a formation.
  • the drill string can include an open-faced drill bit, an outer tube of a core barrel assembly, and a series of connected drill rods, which can be assembled section-by-section as the drill bit and the core barrel assembly move deeper into the formation.
  • the outer tube of the core barrel assembly can be connected to the drill bit and the series of drill rods.
  • the core barrel assembly can also include an inner tube assembly, which can be releasably locked to the outer tube. With the inner tube assembly locked to the outer tube, the drill bit, the core barrel assembly and the drill rods can be rotated and/or pushed into the formation to allow a core sample to be collected within the inner tube assembly.
  • the inner tube assembly can be unlocked from the outer tube.
  • the inner tube assembly can then be retrieved using a retrieval system, while portions of the drill string remain within the borehole.
  • the core sample can be removed from the retrieved inner tube assembly, and after the core sample is removed, the inner tube assembly can be sent back and locked to the outer tube.
  • the drill bit, the core barrel assembly and the drill rods can again be rotated and/or pushed farther into the formation to allow another core sample to be collected within the inner tube assembly.
  • the inner tube assembly can be repeatedly retrieved and sent back in this manner to obtain several core samples, while portions of the drill string remain within the borehole. This can advantageously reduce the time necessary to obtain core samples because the drill string need not be tripped out of the borehole for each core sample.
  • the retrieval system used to retrieve the inner tube assembly can include an overshot connected to a wireline rope.
  • a trailing portion of the wireline rope can be connected to a winch drum of a winch, and a leading portion of the wireline rope can be connected to the overshot.
  • the winch drum can be rotated in a first direction to unwind the wireline rope, which lowers/advances the overshot into the drill string until it reaches the inner tube assembly. After the overshot reaches the inner tube assembly, the overshot can be connected to the inner tube assembly. With the overshot connected to the inner tube assembly, the winch drum can be rotated in an opposing second direction to re-wind the wireline rope, which raises/retrieves the overshot and the inner tube assembly out of the drill string.
  • the winch drum is typically rotated at a very high speed to quickly retrieve the overshot and the inner tube assembly.
  • the overshot can slam into a mechanical trip lever of the retrieval system, which causes the winch drum to stop rotating to help prevent overrunning the winch.
  • a user can then manually select an override button, or the like, to commence rotating the winch drum at a reduced speed to continue raising/retrieving the inner tube assembly.
  • the retrieval system can include a winch, a wireline rope that can be connected to the winch, a core sampler (e.g ., an inner tube assembly) connected to a retrieval tool (e.g ., an overshot) which is connected to the wireline rope, a radio-frequency identification (RFID) transponder and transponder carrier, a RFID antenna and reader assembly, and a controller in operative communication with the winch.
  • a radio-frequency identification (RFID) transponder and transponder carrier e.g ., an overshot
  • RFID radio-frequency identification
  • the controller can be configured to automatically adjust the speed at which the winch retrieves the core sampler.
  • the winch can include a winch drum, and the wireline rope can be at least partially wound around the winch drum.
  • the controller can be configured to automatically adjust the speed at which the winch drum rotates, thereby adjusting the speed at which the winch retrieves the core sampler.
  • the retrieval system can further include a housing that encloses at least a portion of the RFID transponder.
  • the housing can have a clamp configuration that can be configured to clamp onto the wireline rope.
  • the housing can be connected to a retrieval tool and/or retrieval tool adaptor (e.g ., an overshot and/or an overshot adaptor) of the retrieval system.
  • Figure 1 is a perspective view of a first exemplary retrieval system as described herein;
  • Figure 2 is a perspective view of a portion of the retrieval system shown in Figure 1 ;
  • Figure 3 is an exploded view of a portion of the retrieval system shown in Figure 1 ;
  • Figure 4 is a perspective view of a portion of the retrieval system shown in Figure 1 ;
  • Figure 5 is an exploded view of a portion of the retrieval system shown in Figure 1 ;
  • Figure 6 is a diagram of a portion of the retrieval system shown in Figure 1 ;
  • Figure 7 is a perspective view of a second exemplary retrieval system as described herein;
  • Figure 8 is a perspective view of a portion of the retrieval system shown in Figure 7;
  • Figure 9 is a perspective view of a portion of the retrieval system shown in Figure 7.
  • Figure 1 0 is a perspective view of a portion of the retrieval system shown in Figure 7.
  • Ranges can be expressed herein as from “about” one particular value, and/or to "about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent "about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
  • a drill ing system 1 00 can be used to retrieve a sample from a formation along a drilling axis 1 01 .
  • the drilling system 100 can comprise a drill string 102 that can comprise a drill bit (for example, an open-faced drill bit or other type of drill bit) and/or one or more drill rods 104.
  • the drilling system 1 00 can comprise an in-hole assembly, such as a core barrel assembly, and the drill string 1 02 can comprise an outer portion of the in-hole assembly.
  • the drill string 102 can comprise an outer tube of the core barrel assembly, which can be connected to the drill bit and a set of one or more drill rods 104. It will be appreciated, however, that the outer tube and/or other portions of the core barrel assembly can be connected to the drill bit, the drill rods 104 and/or other portions of the drill string 102 using any other suitable components.
  • the drill bit, the core barrel assembly, the drill rods 104 and/or other portions of the drill string 102 can be rotated and/or pushed into the formation along the drilling axis 101 to form a borehole.
  • a series of interconnected drill rods 104 can be assembled section-by-section.
  • the drilling system 1 00 can comprise a drill rig that can rotate and/or push the drill bit, the core barrel assembly, the drill rods 104 and/or other portions of the drill string 1 02 into the formation along the drilling axis 1 01 .
  • the drilling system 1 00 does not require a drill rig and that the drilling system 1 00 can comprise other suitable components that are configured to rotate and/or push the drill bit, the core barrel assembly, the drill rods 104 and/or other portions of the drill string 102 into the formation.
  • the core barrel assembly can comprise a core sampler (not shown).
  • the core sam pler can comprise an inner tube assembly, such as, for exam ple and without l im itation , an inner core barrel as described in U .S. Patent Publ ication No. 201 0/001 2383, the d isclosure of wh ich is hereby incorporated by reference in its entirety.
  • the core sampler can be an inner tube assembly disposed within the drill string 102 and releasably locked to the outer tube of the core barrel assembly using, for example, one or more latches or any other suitable means.
  • the core sampler can comprise one or more receptacles, such as, for example and without limitation, an inner tube, a core lifter case, and/or other known types of receptacles.
  • receptacles such as, for example and without limitation, an inner tube, a core lifter case, and/or other known types of receptacles.
  • any known core sampler that is capable of receiving and/or housing a core sample and that is configured for retrieval as described herein can be used.
  • the core sampler e.g ., inner tube assembly
  • the drill bit, the core barrel assembly, the drill rods 104 and/or other portions of the drill string 102 can be rotated and/or pushed into the formation along the drilling axis 101 to allow a core sample to be collected within the one or more receptacles of the core sampler. It is further contemplated that, after the core sample is collected, the core sampler (e.g., inner tube assembly) can be unlocked from the outer tube of the core barrel assembly.
  • the core sampler can then be retrieved while the drill bit, the outer tube of the core barrel assembly, one or more of the drill rods 104 and/or other portions of the drill string 102 remain within the borehole.
  • the core sampler can be retrieved using a retrieval system 106. It is further contemplated that the core sample can be removed from the retrieved core sampler, and after the core sample is removed from the core sampler, the core sampler can be sent back and locked to the outer tube of the core barrel assembly.
  • the core sampler e.g ., inner tube assembly
  • the drill bit, the core barrel assembly, the drill rods 104 and/or other portions of the drill string 102 can be rotated and/or pushed farther into the formation along the drilling axis 101 to allow another core sample to be collected within the one or more receptacles of the core sampler.
  • the core sampler can be repeatedly retrieved and sent back in this manner to obtain several core samples, while the drill bit, the outer tube of the core barrel assembly, one or more of the drill rods 104 and/or other portions of the drill string 102 remain within the borehole. It is contemplated that this can advantageously reduce the time necessary to obtain core samples because the drill string 102 need not be tripped out of the borehole for each core sample.
  • the retrieval system 106 shown in Figure 1 can be a wireline retrieval system and can comprise a wireline rope 108, a winch 1 1 0, a retrieval tool adaptor 1 1 2, such as an overshot adaptor as shown in Figures 4-5, and a retrieval tool 1 1 3, such as an overshot as shown in Figure 7.
  • a trailing portion 109a of the wireline rope 108 can be connected to a winch drum 1 14 of the winch 1 10
  • a leading portion 1 09b of the wireline rope 108 can be connected to the retrieval tool (e.g., overshot ) 1 13.
  • the retrieval tool 1 13 is depicted in the Figures as an overshot, it is contemplated that the retrieval tool 1 13 can comprise any suitable means for retrieving a core sampler in a wireline drilling system as described herein.
  • the winch drum 1 14 can be rotated in a first direction about a rotation axis 1 15 to unwind the wireline rope 108, which can be configured to lower and/or advance the retrieval tool (e.g., overshot) 1 13 into the drill string 102 until it reaches the core sampler. After the retrieval tool 1 13 reaches the core sampler, the retrieval tool 1 13 can be configured for operative coupling to the core sampler.
  • the retrieval tool e.g., overshot
  • the winch drum 1 14 can be rotated in an opposing second direction about the rotation axis 1 15 to re-wind the wireline rope 1 08, which can be configured to raise, retract, and/or retrieve the retrieval tool 1 13 and the core sampler out of and away from the drill string 102 along the drilling axis 101 .
  • the winch drum 1 14 can be rotated at a very high speed to quickly retrieve the retrieval tool 1 13 and/or the core sampler.
  • the retrieval system 1 06 can be configured to— in response to receiving a wireless signal, such as, a wireless signal from a radio-frequency identification (RFID) transponder— automatically stop and/or adjust the speed at which the winch 1 10 retrieves the retrieval tool (e.g., overshot) 1 13 and/or the core sampler.
  • a wireless signal such as, a wireless signal from a radio-frequency identification (RFID) transponder
  • RFID transponder can be operatively coupled to the wireline rope 108 at a selected location along the drilling axis 101 such that movement of the wireline rope along the drilling axis effects a
  • the selected location of the RFID transponder can be spaced from the winch 1 10 by a first distance along the drilling axis 101 and can be spaced from the core sampler by a second distance along the drilling axis 101 , with the first distance being shorter than the second distance.
  • the retrieval system 106 can comprise a controller that is configured to receive the wireless signal from the RFID
  • the controller can be in operative communication with the winch drum such that, in response to receiving the wireless signal from the RFID transponder, the controller can be configured to automatically adjust the speed at which the winch drum 1 14 rotates about rotation axis 1 15, thereby adjusting the speed at which the winch 1 10 retrieves the retrieval tool 1 13 and/or the core sampler.
  • the retrieval system 106 can be configured to, in response to receiving the wireless signal, automatically reduce the speed of the rotation of the winch drum 1 14, and if desired, stop the rotation of the winch drum 1 14. By automatically reducing the speed of and/or stopping the rotation of the winch drum 1 14 in response to receiving the wireless signal, it is
  • the retrieval system 1 06 can advantageously provide a hands- free solution in which user interaction is not required to limit or prevent overrunning the winch 1 10.
  • the retrieval system 106 can comprise an RFID antenna 1 17 that is in operative communication with the controller and that is configured to receive the wireless signal from the RFID transponder.
  • the retrieval system 106 can further comprise an RFID reader that is configured to send an output which can be received and interpreted by the controller.
  • one or more of the RFI D transponders 1 1 6 shown in Figure 2 can be connected to portions of the retrieval system 106.
  • one or more RFID transponders 1 16 can optionally be connected to the wireline rope 108 using a housing 1 18, as shown in Figure 1 .
  • the RFID transponders 1 16 can be enclosed by and/or connected to the housing 1 18, and the housing 1 18 can be connected to the wireline rope 108 as shown in Figure 1 .
  • one or more RFID transponders 1 16 can be operatively coupled and/or connected to the retrieval tool 1 13 and/or the retrieval tool adaptor 1 12.
  • the housing 1 18 can have a clamp configuration including first and second portions 120, 122 as shown in Figure 2.
  • the first and second housing portions 120, 122 can be configured to clamp onto the wireline rope 108.
  • one or more fasteners 124 can be used to clamp the first and second housing portions 1 20, 122 together.
  • the housing 1 18 can optionally be a transducer housing, which can be constructed from nylon and/or other suitable materials.
  • a pair of RFI D transponders 1 1 6 can be enclosed by and/or connected to the housing 1 18. (Alternatively, more than two or only a single RFID transponder can be enclosed by and/or connected to the housing 1 18.)
  • the housing 1 18 can extend axially from a first end 126 to an opposing second end 128, and first and second RFID transponders 1 16 can be generally disposed centrally between the first and second ends 1 26, 1 28.
  • first RFID transponder 1 16 can be generally disposed towards the first end 126
  • the second RFID transponder 1 1 6 can be generally disposed towards the opposing second end 1 28.
  • the first RFID transponder 1 16 can be offset from a central axis 1 30 of the housing 1 1 8 towards a first side 132 of the housing 1 18, and the second RFID transponder 1 16 can be offset from the central axis 130 towards an opposing second side 1 34 of the housing 1 1 8.
  • a pair of connectors 1 36 can be used to connect the first and second RFID transponders 1 1 6 to the housing portions 1 20, 122. While a pair of RFID transponders 1 16 are illustrated in Figures 2-3, it is contemplated that a single RFID transponder 1 1 6 or more than two RFID transponders 1 16 can be used and can be positioned in other suitable locations within the housing 1 18.
  • one or more RFID transponders can be connected to other portions of the retrieval system 106, such as the retrieval tool adaptor 1 12 shown in Figures 4-5, which couples the retrieval tool 1 13 to the core sampler.
  • the retrieval tool adaptor 1 12 can comprise a housing 138, and one or more RFID transponders can be enclosed by and/or connected to the housing 1 38.
  • the housing 138 can optionally comprise one or more passageways 140 into which one or more RFID transponders can be inserted.
  • the retrieval system 106 can be configured to— in response to receiving a wireless signal from an RFID transponder— automatically adjust (i.e., stop, decrease, or increase) the speed at which the winch 1 10 retrieves the retrieval tool (e.g ., overshot) 1 1 3 and/or the core sampler.
  • the RFID antenna 1 1 7 of the retrieval system 106 can have a read range 142 in which the RFID reader of the retrieval system 106 can "read" an RFID transponder 1 16.
  • the RFID reader of the retrieval system 1 06 can be configured to automatically adjust the speed at which the winch drum 1 14 rotates.
  • a preferred read time 7 " for the RFID transponder 1 1 6 can be less than or equal to D / (V * R) where the RFI D transponder 1 16 passes a distance D through the antenna's read range 142 at a velocity V and R is the desired number of reads.
  • an RFID read time capability that is larger than or equal to D / (V * R) can also be used.
  • FIG 7 shows an alternative drill ing system 700 similar to the drill ing system 100 of Figure 1 , but differing in the manner in which an RFID transponder (and its optional housing) are coupled to the wireline rope 108.
  • an RFID transponder housing 170 instead of connecting the RFID transponder housing to the wireline rope 108 (e.g ., the housing 1 1 8 of Figure 2) or to the retrieval tool adaptor (e.g. , the housing 1 38 of Figures 4 and 5), an RFID transponder housing 170 (see Figure 8) can be connected to the retrieval tool 1 13.
  • the retrieval tool (e.g ., overshot) 1 13 shown in Figure 7 has been depicted at a smaller scale relative to the other components of the drill ing system 1 00.
  • the retrieval tool 1 1 3 can have a diameter substantially corresponding in size to that of drill rods 104.
  • the housing 1 70 can be operatively coupled and/or adapted to a proximal end of the retrieval tool 1 13 that comprises a swivel assembly 1 72.
  • the swivel assembly 172 can attach to the wireline rope 108.
  • the swivel assembly 172 can be connected by, for example and without limitation, a threaded connection, to the top of the housing 170, and it is contemplated that the housing 170 can be connected by, for example and without limitation, a threaded connection, to the remaining portions of the retrieval tool 1 13, including the retrieval tool adapter 1 12.
  • the retrieval tool 1 13 can have a distal end 173 that is configured for operative coupling to a core sampler as described herein.
  • the housing 170 can comprise a carrier body 174 and a guard 176 (shown in Figure 10) to house an RFID transponder 178.
  • the carrier body 174 can have a recess formed therein that is sized and configured to receive the RFID transponder 1 78.
  • the recess can have length, width, and depth dimensions that are large enough to accommodate therein the corresponding dimensions of the RFID transponder 178.
  • the recess can be omitted .
  • the RFID transponder 178 can be mounted to an exterior wall of the housing 170 and/or to the retrieval tool 1 13.
  • the housing 1 70 can be made of a durable material , such as, for example and without l imitation, high tensile steel or other metal material .
  • the RFID transponder 178 can be a mount-on-metal RFID transponder.
  • the guard 176 can be made of a non-metal material, such as, for example and without limitation, plastic, to facilitate transmission and reception of RF signals from and to the RFID antenna 1 17.
  • the guard 176 can be sized and shaped to fill portions of the recess formed in the housing 170 that are not occupied by the RFID transponder 178.
  • an inner side of the guard 176 can be shaped to substantially mate with an outer surface of the RFID transponder 178, and an outer surface of the guard 176 can be formed to be substantially flush with adjacent portions of the outer surface of the housing 170. It is further contemplated that, by forming the guard 176 and the housing 170 in this manner, the risk of damage to or loss of the guard 176 and the RFID
  • transponder 178 during operation of the retrieval tool (e.g., overshot) 1 13 can be reduced.

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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)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention porte sur un système de récupération pour un système de forage à câble de forage ayant un treuil, un câble de forage relié au treuil et un dispositif d'échantillonnage de carotte relié au câble de forage. Le système de récupération comprend une balise d'identification à fréquence radio (RFID) et un dispositif de commande qui, en réponse à la réception d'un signal sans fil à partir de la balise d'identification à fréquence radio, règle automatiquement une vitesse à laquelle le treuil récupère le dispositif d'échantillonnage de carotte.
PCT/US2012/040133 2011-05-31 2012-05-31 Systèmes et procédés pour limiter un dépassement de treuil Ceased WO2012166864A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201280026676.7A CN103562120A (zh) 2011-05-31 2012-05-31 限制绞盘超程的系统和方法
CA2836788A CA2836788A1 (fr) 2011-05-31 2012-05-31 Systemes et procedes pour limiter un depassement de treuil
EP12793305.9A EP2714572A2 (fr) 2011-05-31 2012-05-31 Systèmes et procédés pour limiter un dépassement de treuil
AU2012262191A AU2012262191A1 (en) 2011-05-31 2012-05-31 Systems and methods for limiting winch overrun

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161491628P 2011-05-31 2011-05-31
US61/491,628 2011-05-31

Publications (2)

Publication Number Publication Date
WO2012166864A2 true WO2012166864A2 (fr) 2012-12-06
WO2012166864A3 WO2012166864A3 (fr) 2013-01-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/040133 Ceased WO2012166864A2 (fr) 2011-05-31 2012-05-31 Systèmes et procédés pour limiter un dépassement de treuil

Country Status (7)

Country Link
US (1) US20120305317A1 (fr)
EP (1) EP2714572A2 (fr)
CN (1) CN103562120A (fr)
AU (1) AU2012262191A1 (fr)
CA (1) CA2836788A1 (fr)
CL (1) CL2013003422A1 (fr)
WO (1) WO2012166864A2 (fr)

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EP3395745A1 (fr) 2017-04-27 2018-10-31 BAUER Maschinen GmbH Système de grue
EP3411323A4 (fr) * 2016-01-29 2019-10-02 Keppel LeTourneau USA, Inc. Appareil et procédé de détection anti-rapprochement de moufles
US10781665B2 (en) 2012-10-16 2020-09-22 Weatherford Technology Holdings, Llc Flow control assembly
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US10781665B2 (en) 2012-10-16 2020-09-22 Weatherford Technology Holdings, Llc Flow control assembly
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WO2017167892A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur doté d'une grue pour manipuler un câble de remorquage
DK201670189A1 (en) * 2016-03-31 2017-10-09 A P Møller - Mærsk As A tugboat with a crane for handling a towing line
EP3395745A1 (fr) 2017-04-27 2018-10-31 BAUER Maschinen GmbH Système de grue
US10836617B2 (en) * 2018-10-31 2020-11-17 Abb Schweiz Ag Method for operating towing winch and electric drive for towing winch

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US20120305317A1 (en) 2012-12-06
AU2012262191A1 (en) 2013-12-12
CL2013003422A1 (es) 2014-07-18
WO2012166864A3 (fr) 2013-01-24
EP2714572A2 (fr) 2014-04-09
CN103562120A (zh) 2014-02-05
CA2836788A1 (fr) 2012-12-06

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