WO2009031166A1 - Équipement utilisé pour dévisser des tiges de forage du type constitué d'une paire de presses superposées - Google Patents

Équipement utilisé pour dévisser des tiges de forage du type constitué d'une paire de presses superposées Download PDF

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Publication number
WO2009031166A1
WO2009031166A1 PCT/IT2007/000606 IT2007000606W WO2009031166A1 WO 2009031166 A1 WO2009031166 A1 WO 2009031166A1 IT 2007000606 W IT2007000606 W IT 2007000606W WO 2009031166 A1 WO2009031166 A1 WO 2009031166A1
Authority
WO
WIPO (PCT)
Prior art keywords
equipment used
fact
drill rods
vice
unscrew
Prior art date
Application number
PCT/IT2007/000606
Other languages
English (en)
Inventor
Maurizio Sgolastra
Original Assignee
Sgolastra & Giampaoli S.R.L.
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 Sgolastra & Giampaoli S.R.L. filed Critical Sgolastra & Giampaoli S.R.L.
Priority to PCT/IT2007/000606 priority Critical patent/WO2009031166A1/fr
Publication of WO2009031166A1 publication Critical patent/WO2009031166A1/fr

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
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
    • E21B19/163—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe piston-cylinder actuated

Definitions

  • Equipment used to unscrew drill rods of the type composed of an overlapped pair of vices.
  • the present patent application relates to an equipment used to unscrew drill rods, of the type composed of an overlapped pair of vices, a fixed vice for tightening and a rotary vice for unscrewing.
  • the equipment of the invention is used in known drilling machines that employ a drilling tool mounted at the base of a vertical series of rods driven into rotation by a suitable rotary motor group.
  • a second rod is screwed onto the first rod to increase the drilling depth.
  • a rod unscrewing equipment must be used during this phase, being traditionally composed of a lower fixed vice that supports a second vice, which rotates in two directions with respect to the first vice and is actuated by means of a hydraulic cylinder known as rotary cylinder.
  • Each vice is composed of an overlapped pair of jaws actuated by corresponding hydraulic cylinders.
  • the support frame of the rotary vice is coupled with the bearing frame of the fixed vice by means of a semi-circular ring that acts as connection and guide between the two vices.
  • the rotary cylinder is pivoted to the frame of the fixed vice on one side, and to the frame of the rotary vice on the other side, which receives a thrust laying on a horizontal plane higher than the plane of the connection and guide ring.
  • the ring is subjected to flexural stress during the rotation of the rotary vice, with consequent complicated design and higher wear of the rubbing surfaces, which can cause the misalignment of the upper vice with respect to the lower vice.
  • the purpose of the present invention is to provide a remedy to the aforementioned inconveniences, by devising a new rod unscrewing equipment in which the mobile vice is guided by a pair of semicircular rings, an upper and a lower ring, with a rotary cylinder between them, whose thrust lays on a central plane with respect to the planes of the rings, in such a way that the guide means of the rotary vice are no longer subjected to flexural stress.
  • a further purpose of the present invention is to devise a rod- unscrewing equipment composed of two independent vices that can be mounted in paired configuration, one above the other, or mounted at a distance according to the specific needs, in order not to constrain the tightening point of both vices.
  • a further purpose of the present invention is to devise a rod unscrewing equipment composed of two independent vices obtained with identical construction parts, in order to reduce production and storage costs.
  • the aforementioned purposes have been obtained by the present invention, according to the main characteristics described in the first claim.
  • the equipment of the invention is composed of two independent vices with the same shell structure designed to contain and support the pair of opposite cylinders that actuate the jaws used to tighten the rod.
  • the only difference between the upper and the lower vice consists in the fact that the shell structure of the upper vice is contained inside a cradle- shaped frame formed of two identical brackets, an upper and a lower bracket, connected by spacing uprights.
  • the cradle-shaped frame supports a pair of rings, an upper and a lower ring, screwed on corresponding brackets.
  • the rotary vice can move internally thanks to a rotary cylinder pivoted to the cradle on one side and to the shell structure on the other side.
  • Both vices have independent structures that can either work in pair or individually, being mounted one on top of the other one by simply fitting the cradle frame of the mobile vice above the fixed vice.
  • - figure 1 is an axonometric view of the equipment of the invention, in which the jaws of both vices are open;
  • FIG. 2 is an axonometric view of the lower vice of the equipment of the invention, in which the jaws are open;
  • FIG. 3 is an axonometric view of the upper vice of the equipment of the invention, in which the jaws are open;
  • - figure 4 is an axonometric view of the equipment of the invention with an overlapped pair of drilling rods positioned between the open jaws;
  • - figure 5 is the same as figure 4, except for the fact that the jaws of the lower vice are closed;
  • figure 6 is the same as figure 5, except for the fact that the upper vice has made a backward rotation before tightening the upper rod;
  • figure 7 is the same as figure 6, except for the fact that the jaws of the rotary vice are closed on the upper rod;
  • figure 8 is the same as figure 7, except for the fact that the rotary vice is at the end of the unscrewing travel;
  • FIG. 9 is an exploded axonometric view of a jaw of the vices and of the pair of tempered anti-slip inserts;
  • FIG 10 is an exploded axonometric view of the back of the jaw shown in figure 9.
  • the equipment (A) of the invention is composed of a coaxial overlapped pair of vices (1 and 2), a lower fixed vice (1) and an upper rotary vice (2).
  • the lower vice (1 ) is composed of a shell structure formed of two identical U-shaped plates (1a) that support an opposite pair of cylinders (1 b).
  • the plates (1a) are connected on the parallel sides (1c) by two box-shaped elements (1d) that house a corresponding jaw (1e) with sliding guides (1 E) and actuation cylinder (1 b).
  • the plates (1a) are connected on the back of the transversal side (1f) by means of small plates (1g) designed to fix the vice (1) to a bearing frame, not shown in the enclosed figures.
  • Each plate (1a) is provided with a groove (1h) having a semicircular profile with centre on a vertical axis (Y) that intersects the longitudinal axis (X) of the opposite pair of cylinders (1b) and is equidistant from the cylinders (1 b).
  • the upper vice (2) comprises a fixed cradle frame (3) that houses a shell structure identical to the shell structure of the lower fixed vice (1), with possibility of rotation around the said vertical axis (Y).
  • the shell structure of the vice (2) is composed of two identical U-shaped plates (2a) that support an opposite pair of cylinders (2b).
  • the plates (2a) are connected on the parallel sides (2c) by two box- shaped elements (2d) that house a corresponding jaw (2e) with sliding guides (2E) and actuation cylinder (2b).
  • Each plate (2a) is provided with a groove (2h) having a semicircular profile with centre on a vertical axis (Y) that intersects the longitudinal axis (X) of the opposite pair of cylinders (2b) and is equidistant from the cylinders (2b).
  • the cradle frame (3) is composed of two identical parallel brackets (3a and 3b), a lower (3a) and an upper (3b) U-shaped bracket, connected by means of spacing uprights (3c) and small plates (3d) on the back, used to fasten the cradle (3) to a bearing frame, not shown in the enclosed figures.
  • Two semicircular rings (4a and 4b) are symmetrically mounted above and under the cradle frame (3) and respectively fixed under the lower bracket (3a) and above the upper bracket (3b),
  • Each ring (4a and 4b) is provided with a groove (5a and 5b) that houses a semicircular guide section (6a and 6b) inserted and firmly stopped in the groove (2h) of the rotary vice (2).
  • Two lateral elements (2i) are obtained along the external perimeter of the plates (2a) with housing for a vertical pin (7) on which the end of the stem (8a) of the rotary cylinder (8) is pivoted, with the cylinder sleeve (8b) fixed to the cradle frame (3).
  • the axis of the rotary cylinder (8) and the axis (X) of the opposite pair of cylinders (2b) used to actuate the jaws (2e) of the rotary vice (2) lay on the same symmetrical plane of the overlapped pair of rings (4a and 4b).
  • each jaw (1e or 2e) is composed of a stem (9) that acts as support for a front pair of tempered interchangeable inserts (10) with anti-slip rough surface.
  • the stem (9) has a V-shaped front wall with two housings (9a) that partially contain the tempered inserts (10), which are stopped by means of elastic pins (11) inserted into suitable holes (9b) obtained on the borders of the housings (9a) and holes (10a) obtained on the borders of the said inserts (10).
  • the holes (9b and 10a) are perpendicular to the axis (X) of the cylinder (1 b or 2b).
  • the stopping system of the inserts (10) by means of elastic pins (11 ) is characterised by simple fast mounting and dismounting.
  • the insert (9) can be blocked on the stem (10) by simply cantering it in the corresponding housing (9a) and then inserting the elastic pins (11) in the corresponding holes (9b and 10a).
  • each hole (10a) ends into a niche (10b) obtained on the back (10c) of the insert (10), which can be uncoupled from the corresponding stem by simply pushing the pins (11) inside the holes (10a and 9b) until they fall inside the niche (10c).

Landscapes

  • 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)

Abstract

L'invention concerne un équipement utilisé pour dévisser des tiges de forage du type constitué d' une paire de presses coaxiales superposées (1 et 2), soit une presse inférieure fixe (1) et une presse supérieure tournante (2). Ledit équipement est équipé de moyens (4a et 4b, 5a et 5b, 6a et 6b) conçus pour guider la rotation sur un axe vertical (Y) de la structure support des mâchoires (2e) de la presse tournante (2), qui est entraînée en rotation par des moyens d'actionnement appropriés (8) exerçant une force sur le même plan situé entre la paire desdits moyens de guidage (4a et 4b, 5a et 5b, 6a et 6b).
PCT/IT2007/000606 2007-09-03 2007-09-03 Équipement utilisé pour dévisser des tiges de forage du type constitué d'une paire de presses superposées WO2009031166A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000606 WO2009031166A1 (fr) 2007-09-03 2007-09-03 Équipement utilisé pour dévisser des tiges de forage du type constitué d'une paire de presses superposées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000606 WO2009031166A1 (fr) 2007-09-03 2007-09-03 Équipement utilisé pour dévisser des tiges de forage du type constitué d'une paire de presses superposées

Publications (1)

Publication Number Publication Date
WO2009031166A1 true WO2009031166A1 (fr) 2009-03-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2007/000606 WO2009031166A1 (fr) 2007-09-03 2007-09-03 Équipement utilisé pour dévisser des tiges de forage du type constitué d'une paire de presses superposées

Country Status (1)

Country Link
WO (1) WO2009031166A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013036138A3 (fr) * 2011-09-09 2013-09-19 National Oilwell Varco Norway As Système de guidage et son procédé de fonctionnement
WO2014159897A1 (fr) * 2013-03-14 2014-10-02 Faleski, Thaddeus J. Systèmes de serrage concentriques de faible hauteur et procédés d'accouplement ou de désaccouplement de liaisons vissées
WO2015063329A3 (fr) * 2013-11-04 2015-12-17 Totech Industriutveckling Ab Dispositif de préhension de tuyau amélioré
GR1009556B (el) * 2018-01-25 2019-07-02 Νικολαος Σωτηριου Βρουσιας Συστημα βιδωματος και ξεβιδωματος σωληνων γεωτρησης παντος τυπου
US10718170B2 (en) 2017-07-10 2020-07-21 Vermeer Manufacturing Company Vise arrangement for an underground drilling machine
CN111551703A (zh) * 2020-05-25 2020-08-18 嵊州风浦医疗设备科技有限公司 一种高效的便携式幽门螺旋杆菌测定仪
SE1950880A1 (en) * 2019-07-10 2021-01-11 Totech Ind Ab Holding device and method for a pipe gripping assembly
CN115059414A (zh) * 2022-08-17 2022-09-16 江苏盖亚环境科技股份有限公司 一种自动化回转抬升式浮动液压夹持机构
WO2023172143A1 (fr) * 2022-03-09 2023-09-14 Audun Sjursaether Appareil de clé et procédé de finalisation et de déclenchement de rupture d'un raccord de tuyau fileté

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732061A (en) * 1987-03-09 1988-03-22 National-Oilwell Power tongs and clamping units therefor
US7188547B1 (en) * 2005-12-23 2007-03-13 Varco I/P, Inc. Tubular connect/disconnect apparatus
CA2520927A1 (fr) * 2005-09-23 2007-03-23 Gerald Lesko Piston-plongeur de prehension de tuyau
WO2007087181A2 (fr) * 2006-01-20 2007-08-02 Access Oil Tools L. P. Appareil pour le maniement d'éléments tubulaires, et procédé correspondant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732061A (en) * 1987-03-09 1988-03-22 National-Oilwell Power tongs and clamping units therefor
CA2520927A1 (fr) * 2005-09-23 2007-03-23 Gerald Lesko Piston-plongeur de prehension de tuyau
US7188547B1 (en) * 2005-12-23 2007-03-13 Varco I/P, Inc. Tubular connect/disconnect apparatus
WO2007087181A2 (fr) * 2006-01-20 2007-08-02 Access Oil Tools L. P. Appareil pour le maniement d'éléments tubulaires, et procédé correspondant

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013036138A3 (fr) * 2011-09-09 2013-09-19 National Oilwell Varco Norway As Système de guidage et son procédé de fonctionnement
WO2014159897A1 (fr) * 2013-03-14 2014-10-02 Faleski, Thaddeus J. Systèmes de serrage concentriques de faible hauteur et procédés d'accouplement ou de désaccouplement de liaisons vissées
WO2015063329A3 (fr) * 2013-11-04 2015-12-17 Totech Industriutveckling Ab Dispositif de préhension de tuyau amélioré
US10047575B2 (en) 2013-11-04 2018-08-14 Totech Industriutveckling Ab Pipe gripper
US11261676B2 (en) 2017-07-10 2022-03-01 Vermeer Manufacturing Company Vise arrangement for an underground drilling machine
US10718170B2 (en) 2017-07-10 2020-07-21 Vermeer Manufacturing Company Vise arrangement for an underground drilling machine
GR1009556B (el) * 2018-01-25 2019-07-02 Νικολαος Σωτηριου Βρουσιας Συστημα βιδωματος και ξεβιδωματος σωληνων γεωτρησης παντος τυπου
SE1950880A1 (en) * 2019-07-10 2021-01-11 Totech Ind Ab Holding device and method for a pipe gripping assembly
SE543770C2 (en) * 2019-07-10 2021-07-20 Totech Ind Ab Holding device for a pipe gripping assembly
CN111551703A (zh) * 2020-05-25 2020-08-18 嵊州风浦医疗设备科技有限公司 一种高效的便携式幽门螺旋杆菌测定仪
WO2023172143A1 (fr) * 2022-03-09 2023-09-14 Audun Sjursaether Appareil de clé et procédé de finalisation et de déclenchement de rupture d'un raccord de tuyau fileté
CN115059414A (zh) * 2022-08-17 2022-09-16 江苏盖亚环境科技股份有限公司 一种自动化回转抬升式浮动液压夹持机构
CN115059414B (zh) * 2022-08-17 2022-11-11 江苏盖亚环境科技股份有限公司 一种自动化回转抬升式浮动液压夹持机构

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