EP1881151A1 - Unité de forage - Google Patents

Unité de forage Download PDF

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Publication number
EP1881151A1
EP1881151A1 EP07013368A EP07013368A EP1881151A1 EP 1881151 A1 EP1881151 A1 EP 1881151A1 EP 07013368 A EP07013368 A EP 07013368A EP 07013368 A EP07013368 A EP 07013368A EP 1881151 A1 EP1881151 A1 EP 1881151A1
Authority
EP
European Patent Office
Prior art keywords
drilling
top drive
mast
trellis
along
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
EP07013368A
Other languages
German (de)
English (en)
Other versions
EP1881151B1 (fr
Inventor
Davide Trevisani
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.)
Drillmec SpA
Original Assignee
Drillmec SpA
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 Drillmec SpA filed Critical Drillmec SpA
Publication of EP1881151A1 publication Critical patent/EP1881151A1/fr
Application granted granted Critical
Publication of EP1881151B1 publication Critical patent/EP1881151B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • 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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
    • 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
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables

Definitions

  • the present invention refers to a drilling unit.
  • drilling units of a well known kind comprise a drilling mast; a top drive which is supported in sliding fashion by the mast itself in order to move the drilling rods; and a movement group for the top drive.
  • the drilling mast is a telescopic mast which is defined by a fixed trellis and a sliding trellis which is inside the fixed trellis
  • the movement group comprises a cable device which is provided with at least a pair of hanging sheaves which are arranged at the head of the sliding trellis, and a hydraulic device which is suitable for modifying the length of the telescopic mast in order to move the top drive along the telescopic mast itself.
  • Drilling units of the above-described kind have always been advantageously used because they are practical to move and to install even in places which are rather impractical, but the increasingly pressing operating demands which have been imposed in the drilling sector in general, and in the sector of drilling for oil in particular, have lead to a progressive increase in the power which is required of these units in terms of reaching their structural and functional limits. It has in fact been noted that in order to increase the developed power which is available to the movement group it would be necessary to construct a telescopic mast of such dimensions that would not only thwart the above-mentioned characteristics of agility, but would also render extremely difficult the use of the hydraulic devices which are currently available on the market to the detriment, in addition, of production costs.
  • the aim of the present invention is to produce a drilling unit which, while maintaining characteristics of agility in terms of positioning, will also be able to support levels of operating power which are greater than current ones, and which will not involve high levels of costs in terms of production, planning or engineering.
  • a drilling unit comprising a top drive which is mobile along a drilling axis in order to move drilling rods, and a movement group of the top drive comprising, in its turn, a cable device and a hydraulic device which co-operates with the cable device in order to move the top drive along the drilling axis;
  • the unit comprising two drilling masts which are arranged facing and parallel to each other and a support guide which is arranged side by side and in an intermediate position in relation to the two drilling masts in order to support and slide the top drive along the drilling axis;
  • the hydraulic device being provided with a hydraulic actuator for each drilling mast which is suitable for modifying a longitudinal length of the drilling mast itself, and with a control station for the actuation of the hydraulic actuator either in contemporary or independent fashion.
  • the number 1 indicates in its entirety a drilling unit for the drilling of oil wells.
  • the unit 1 comprises a support structure 2 which is defined, in the form of embodiment which is described, by two lateral bases 3 which may be positioned on substructures or others and by a central frame 4, which is connected to both the bases 3, and which is raised in relation to the bases 3 themselves.
  • the unit 1 comprises a support guide 5 which is positioned on the central frame parallel and frontally to a drilling axis A, and two drilling masts 6, which are arranged opposite the axis A and the guide 5, and which rise from the frame 4 parallel to the guide 5 itself.
  • Each drilling mast 6 is a telescopic mast which is defined by a fixed trellis 6' which is hinged to the base 3 in order to rotate around a respective axis B which is transverse to the axis A under the action of a jack 7 which is interposed between the trellis 6' itself and the relative lateral base 3, and by a trellis 6" which is inserted in longitudinally sliding fashion inside the trellis 6' itself, and which is provided with an upper head 8.
  • the drilling masts 6 are shown in their closed operating condition, in which the length of each mast 6 is substantially equal to the length of the relative trellis 6', as well as in a possible elongated operating condition, in which the length of each mast 6 is substantially equal to the sum of the length of the relative trellis 6' plus the length of the relative trellis 6".
  • the overall length of each of these will be substantially equal to the length of the guide 5 measured from the starting point of the frame 4.
  • the unit 1 comprises a top drive 10 which is supported in sliding fashion by the guide 5 by means of interposing a trolley 11 in order to move the drilling rods along the axis A, and a movement group 20 of the top drive 10 which comprises, in its turn, a cable device 30 and a hydraulic device 40 which co-operates with the device 30 in order to move the top drive 10 along the axis A.
  • the trolley 11 is coupled to the guide 5 in order to slide along the guide 5 itself parallel to the axis A, and the top drive 10 comprises a rod moving sleeve 12, which is arranged co-axial to the axis A and is connected to the trolley 11 in order to slide along the axis A itself.
  • the top drive 10 is suitable for being moved along the guide 5 starting from its own lower dead point which corresponds to the closed operating condition of both the two masts 6, as far as its own upper dead point which corresponds to the elongated operating condition of both the masts 6.
  • the cable device 30 comprises four pulls of cable 31a, which are each fixed, at their own opposite ends, to respective dead ends 32, and, for each pull 31, four pairs of hanging sheaves 33 which are arranged in pairs on the head 8 of each mast 6, and a pair of hanging sheaves 34 which are mounted on the trolley.
  • the hanging sheaves 33 and 34 are all loose pulleys which are suitable for rotating around respective rotation axes which are parallel to each other, and, in particular, the two hanging sheaves 33 of each pair on each head 8 are arranged facing the hanging sheaves 33 of the other three pairs of the same head 8, and, equally, the two hanging sheaves 34 of each pair on the trolley 11 are arranged facing the hanging sheaves 34 of the other three pairs which are supported by the trolley 11 itself in such a way as to arrange the four pulls 31 parallel to each other and in the same dynamic conditions.
  • the device 30 comprises, in addition, two balancing systems 35, each of which is arranged in correspondence with a respective side of each base 3, and comprises an equaliser 36 which is hinged to the base 3 in order to rotate around an own axis which is parallel to the axis B, and two gripping elements 37, which are each connected to an end 32 in such a way that an end 32 of a pull 31 is opposed on the equaliser 36 to an end 32 of the immediately adjacent pull 31.
  • the cable 31a of each pull 31 is engaged by a relative element 37, and extends upwards along the relative mast 6 in order to wind around a pair of hanging sheaves 33 and return downwards to wind, this time, around a pair of hanging sheaves 34; then return upwards along the other mast 6 in order to wind around the other pair of hanging sheaves 33 and descend along the same mast 6 to be engaged by the other element 37.
  • the hydraulic device 40 comprises two hydraulic cylinders 41, each of which presents an engine power which is equal to the engine power of the other cylinder 41, and is interposed between a relative fixed trellis 6' and the corresponding mobile trellis 6" in order to modify the length of the relative telescopic mast 6 in such a way as to move the top drive 10 along the support guide 5.
  • Each cylinder 41 extends inside the trellises 6' and 6", and presents a respective rod which is connected at the top to the relative head 8, and at the bottom is inserted inside a casing 41b which is, instead, integral with the trellis 6'.
  • each cylinder 41 is connected to a control station 42, which is part of the device 40, and which is suitable for controlling the activation of the two cylinders 41 either in contemporary fashion or independently of each other.
  • the control station 42 has been generalised and schematicised for reasons of simplicity, being a control station which is normally used in hydraulic circuits for controlling relative components.
  • each cylinder 41 determines the elongation along the axis A of the relative mast 6, or rather the upward movement of the relative hanging sheave 33.
  • the elongation of the two masts 6 determines the raising of the top drive 10 along the guide 3 with the advantage that, in the case that the activation of the two cylinders 41 is not contemporary, the power which is delivered by each cylinder 41 in order to raise the top drive 10 is, in proportion, equal to half of the power which can be delivered by the cylinders 41 in the case that they function in contemporary fashion.
  • the unit 1 which has been described above may equally function in the case of damage to or failure of one of the two cylinders 41, permitting, however, the continuation of the drilling operations and the repair of the damage or failure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Surgical Instruments (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Saccharide Compounds (AREA)
EP07013368A 2006-07-20 2007-07-09 Unité de forage Active EP1881151B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000536A ITTO20060536A1 (it) 2006-07-20 2006-07-20 Unita' di perforazione.

Publications (2)

Publication Number Publication Date
EP1881151A1 true EP1881151A1 (fr) 2008-01-23
EP1881151B1 EP1881151B1 (fr) 2009-12-23

Family

ID=38461777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07013368A Active EP1881151B1 (fr) 2006-07-20 2007-07-09 Unité de forage

Country Status (6)

Country Link
US (1) US20080047755A1 (fr)
EP (1) EP1881151B1 (fr)
AT (1) ATE453037T1 (fr)
DE (1) DE602007003903D1 (fr)
ES (1) ES2338923T3 (fr)
IT (1) ITTO20060536A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990504A2 (fr) * 2007-05-09 2008-11-12 Dietswell Engineering SA Installation de forage dont le mât n'est pas soumis à des contraintes en compression
US20100146873A1 (en) * 2007-04-16 2010-06-17 Falck Schmidt Defence Systems A/S Telescoping mast
CN101975028A (zh) * 2010-08-06 2011-02-16 中国石油大学(华东) 浮式钻井井架实时调平底座
CN101503947B (zh) * 2008-02-04 2011-05-18 华煤建设特殊工程技术有限公司 一种可伸缩式组合双层钻架
FR2977271A1 (fr) * 2011-07-01 2013-01-04 Dietswell Mat de forage a capacite de traction doublee.
ITTO20130850A1 (it) * 2013-10-18 2015-04-19 Drillmec Spa Antenna di perforazione telescopica e impianto di perforazione associato.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9399890B2 (en) * 2012-06-21 2016-07-26 Superior Energy Services—North America Services, Inc. Low wind resistance rig
US9458680B2 (en) * 2013-01-11 2016-10-04 Maersk Drilling A/S Drilling rig
JP6410295B2 (ja) * 2014-06-20 2018-10-24 株式会社不動テトラ 強制昇降装置及び地盤改良施工装置
WO2016118714A1 (fr) * 2015-01-21 2016-07-28 Weatherford Technology Holdings, Llc Unité de reconditionnement hydraulique montée sur tête de puits
CN105507810A (zh) * 2015-07-15 2016-04-20 义乌市披克亚进出口有限公司 一种具有减震功能的挖孔机
RU2612048C1 (ru) * 2015-11-27 2017-03-02 Открытое акционерное общество "Электромеханика" Канатная направляющая для силового вертлюга мобильной буровой установки
US10876363B2 (en) * 2017-12-19 2020-12-29 Caterpillar Global Mining Equipment Llc Negative angle capable blasthole drilling mast

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1169627A (fr) * 1982-01-08 1984-06-26 Ernest M. Futros Mecanisme tendeur de tuyau souple sur tour de forage
WO1997023706A1 (fr) * 1995-12-22 1997-07-03 Maritime Hydraulics A/S Equipement et procede de hissage et de descente d'un joug a l'aide d'un ensemble piston-cylindre, dans un derrick

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2322917C (fr) * 2000-10-06 2007-01-09 Cancoil Integrated Services Inc. Systeme de chariot et de moufle mobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1169627A (fr) * 1982-01-08 1984-06-26 Ernest M. Futros Mecanisme tendeur de tuyau souple sur tour de forage
WO1997023706A1 (fr) * 1995-12-22 1997-07-03 Maritime Hydraulics A/S Equipement et procede de hissage et de descente d'un joug a l'aide d'un ensemble piston-cylindre, dans un derrick

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100146873A1 (en) * 2007-04-16 2010-06-17 Falck Schmidt Defence Systems A/S Telescoping mast
US8661744B2 (en) * 2007-04-16 2014-03-04 Falck Schmidt Defence Systems A/S Telescoping mast
EP1990504A2 (fr) * 2007-05-09 2008-11-12 Dietswell Engineering SA Installation de forage dont le mât n'est pas soumis à des contraintes en compression
CN101503947B (zh) * 2008-02-04 2011-05-18 华煤建设特殊工程技术有限公司 一种可伸缩式组合双层钻架
CN101975028A (zh) * 2010-08-06 2011-02-16 中国石油大学(华东) 浮式钻井井架实时调平底座
CN101975028B (zh) * 2010-08-06 2012-11-21 中国石油大学(华东) 浮式钻井井架实时调平底座
FR2977271A1 (fr) * 2011-07-01 2013-01-04 Dietswell Mat de forage a capacite de traction doublee.
WO2013004956A1 (fr) * 2011-07-01 2013-01-10 Dietswell Mat de forage a capacite de traction doublee.
ITTO20130850A1 (it) * 2013-10-18 2015-04-19 Drillmec Spa Antenna di perforazione telescopica e impianto di perforazione associato.
WO2015056132A1 (fr) * 2013-10-18 2015-04-23 Drillmec Spa Mât télescopique pour le forage et appareil de forage associé
US10662717B2 (en) 2013-10-18 2020-05-26 Drillmec S.P.A. Telescopic mast for drilling and associated drilling rig

Also Published As

Publication number Publication date
US20080047755A1 (en) 2008-02-28
DE602007003903D1 (de) 2010-02-04
ES2338923T3 (es) 2010-05-13
ATE453037T1 (de) 2010-01-15
ITTO20060536A1 (it) 2008-01-21
EP1881151B1 (fr) 2009-12-23

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