EP4276272A1 - Train d'outils de fond de trou - Google Patents

Train d'outils de fond de trou Download PDF

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Publication number
EP4276272A1
EP4276272A1 EP22172789.4A EP22172789A EP4276272A1 EP 4276272 A1 EP4276272 A1 EP 4276272A1 EP 22172789 A EP22172789 A EP 22172789A EP 4276272 A1 EP4276272 A1 EP 4276272A1
Authority
EP
European Patent Office
Prior art keywords
tool
distancing
downhole
tool string
downhole tool
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.)
Pending
Application number
EP22172789.4A
Other languages
German (de)
English (en)
Inventor
Tomas Sune Andersen
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.)
Welltec AS
Original Assignee
Welltec AS
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 Welltec AS filed Critical Welltec AS
Priority to EP22172789.4A priority Critical patent/EP4276272A1/fr
Priority to PCT/EP2023/060137 priority patent/WO2023203078A1/fr
Priority to US18/303,433 priority patent/US20230340847A1/en
Publication of EP4276272A1 publication Critical patent/EP4276272A1/fr
Pending 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole

Definitions

  • the present invention relates to a downhole tool string for displacing at least a tool section in a well in a radial direction in a wall of a well tubular metal structure extending along an axial direction in relation to the radial direction. Moreover, the present invention also relates to a downhole system.
  • the operational tool may be a drill bit for cutting a hole in the well tubular metal structure by rotating around its own centre axis.
  • the first length may be more 200% of the second length, preferably more than 300%, more preferably more than 400%, and even more preferably more than 500%.
  • the operational tool in a projected position may have a third length, the second length being less than 50% of the third length.
  • the first distancing element may be arranged at angle of 0- ⁇ 90° from the operational tool along a circumference of the tool body.
  • first displacement element and the first distancing element may be projectable by the same axial movement in the tool body.
  • first displacement element and the first distancing element may be projectable by means of a spindle or wedges inside ethe tool body.
  • the present invention may further comprise a second displacement element projecting from the second body half and arranged at an angle 0-120° from the first displacement element along a circumference of the tool body.
  • the present invention may further comprise a second distancing element projecting from the first body half arranged at an angle 0-120° from the first distancing element along a circumference of the tool body.
  • first and second distancing element may be equidistantly around the first radial direction.
  • displacement element and the distancing element may be projectable from the outer face by pivoting around each their pivot point.
  • the tool body has an outer diameter of less than 79 mm, preferably less than 54 mm, i.e. less than 2.125 inches.
  • the downhole tool string may comprise a first tool section in which the operational tool is arranged and a second tool section in which the displacement element and the distancing element are arranged.
  • the second tool section may be an anchoring section, the displacement element and the distancing element being anchoring elements.
  • the displacement element and the distancing element may have a first end connected with the tool body and a second end for abutment to the wall of the well tubular metal structure.
  • each second end of the displacement element and the distancing element may comprise a friction enhancing element, such as teeth.
  • the downhole tool string may comprise a tool housing having a first opening through which the distancing element projects and a second opening through which the displacement element projects.
  • pivot point around which the displacement element rotates may be in form a shaft which is rotatably connected to the tool housing.
  • the pivot point around which the distancing element rotates may be in form a shaft which is rotatably connected to the tool housing.
  • the present invention also relates to a downhole system comprising the downhole tool string and a driving unit, such as a downhole tractor, for propelling the downhole tool string forward in the well.
  • a driving unit such as a downhole tractor
  • Fig. 1 shows a downhole tool string 1 for displacing at least a tool section or the whole downhole tool string itself in a well 2 in a radial direction R in a wall 3 of a well tubular metal structure 4 extending along an axial direction L in relation to the radial direction.
  • the downhole tool string 1 comprises a tool body 5 having an outer face 6 and a tool centre axis 7 along the axial direction.
  • Fig. 1 shows a centre plane P extending along and enclosing the tool centre axis 7 dividing the tool body into a first body half 8 and a second body half 9.
  • the downhole tool string 1 further comprises an operational tool 10 for performing an operation in the well tubular metal structure, such as drilling a hole 11 (shown in Fig.
  • Fig. 5 shows a cross-sectional view similar to that of Fig. 3 .
  • the downhole tool string further comprises a second displacement element 12B projecting from the second body half 9.
  • the second displacement element 12B is arranged at an angle V of 0-120° from the first displacement element 12 along a circumference 15 of the tool body 5.
  • the downhole tool string further comprises a second distancing element 14B projecting from the first body half 8.
  • the second distancing element is arranged at an angle ⁇ of 0-120° from the first distancing element 14 along a circumference 15 of the tool body 5.
  • the second distancing elements 14, 14B are arranged at an angle ⁇ of approximately 40°.
  • the angle ⁇ is approximately two times the angle ⁇ but in another embodiment, the angle ⁇ may more or less than two times the angle ⁇ .
  • the first and second distancing elements may be equidistantly placed from the first radial direction R.
  • the displacement elements 14, 14b are equidistantly placed from the first radial direction R along the circumference of the tool body 5.
  • the downhole tool string 1 comprises a first tool section 21 in which the operational tool 10 is arranged and a second tool section 22 in which the displacement element and the distancing element are arranged.
  • the distancing element can be arranged in the same radial position along the circumference of the tool body, as shown in Fig. 4 , and projected in the same radial direction as the operational tool, as shown in Fig. 2B .
  • the second tool section can thus also function as an anchoring section 23, while the displacement element and the distancing element are anchoring elements 24, anchoring the downhole tool string in the axial direction.
  • each of the displacement element 12 and the distancing element 14 has a first end 25 connected with the tool body and a second end 26 for abutment to the wall of the well tubular metal structure.
  • Each second end 26 of the displacement element 12 and the distancing element 14 comprises a friction enhancing element 27B, such as teeth.
  • the tool housing 27 comprises a first opening 31 through which the distancing element 14 projects and a second opening 32 through which the displacement element 12 projects.
  • the downhole tool string 1 comprises two second tool sections 22, i.e. one second tool section on each side of the first tool section so that the operational tool 10 in the first tool section is stabilised from each end, stabilising the drilling process even further.
  • Fig. 1 shows a downhole system 100 comprising the downhole tool string and a driving unit 30, such as a downhole tractor, for propelling the downhole tool string forward in the well.
  • the downhole system 100 is connected and powered through a wireline 44.
  • the displacement element and the distancing element 14 are projectable from the outer face by being displaceable radially outwards without pivoting around a fixed pivot point as earlier described.
  • the displacement element and the distancing element are projectable from the outer face in that the whole displacement element and the whole distancing element are being displaceable radially outwards, e.g. forming part of pistons moving in radial extending piston housings.
  • the tool body has an outer diameter OD and the outer diameter OD may be less than 79 mm, preferably less than 54 mm i.e. less than 2.125 inches.
  • the outer diameter OD may be less than 79 mm, preferably less than 54 mm i.e. less than 2.125 inches.
  • Fig. 8A and 8B show an embodiment similar to the embodiment shown in Fig. 6A and 6B .
  • Fig. 8A shows a retracted position, i.e. a first position, of the first displacement element 12 and the first distancing element 14.
  • the displacement elements 12 and the distancing element 14 are projectable by means of a mandrel 41 inside the tool body 5 pushed in the direction of the arrow AR along the central axis 7 of the tool body 5.
  • Fig. 8B shows a projected position, i.e. a second position, of the first displacement element 12 and the first distancing element 14 where the mandrel 41 is pushed to cause the parts of the displacement and distancing elements 12, 14 to project.
  • a stroking tool is a tool providing an axial force, e.g. for moving the mandrel inside the tool body or providing an axial force in order to release the operational tool from its engagement with the well tubular metal structure.
  • the stroking tool comprises an electric motor for driving a pump.
  • the pump pumps fluid into a piston housing to move a piston acting therein.
  • the piston is arranged on the stroker shaft.
  • the pump may pump fluid out of the piston housing on one side and simultaneously suck fluid in on the other side of the piston.
  • casing By “casing”, “production casing” or “well tubular metal structure” is meant any kind of pipe, tubing, tubular, liner, string, etc., used downhole in relation to oil or natural gas production.
  • a downhole tractor can be used to push the tool all the way into position in the well.
  • the downhole tractor may have projectable arms 35 having wheels 36, wherein the wheels contact the inner surface of the casing for propelling the tractor and the tool forward in the casing.
  • the downhole tractor comprises an electric motor 37 driving a pump 38 providing a presurised fluid for projecting the arms 35 and rotating the wheels 36.
  • a downhole tractor is any kind of driving tool capable of pushing or pulling tools in a well downhole, such as a Well Tractor ® .
  • the downhole tool string further comprises a control unit 39 for controling the tool string from the power and signals from a wireline 44.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP22172789.4A 2022-04-20 2022-05-11 Train d'outils de fond de trou Pending EP4276272A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22172789.4A EP4276272A1 (fr) 2022-05-11 2022-05-11 Train d'outils de fond de trou
PCT/EP2023/060137 WO2023203078A1 (fr) 2022-04-20 2023-04-19 Train d'outils de fond de trou
US18/303,433 US20230340847A1 (en) 2022-04-20 2023-04-19 Downhole tool string

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22172789.4A EP4276272A1 (fr) 2022-05-11 2022-05-11 Train d'outils de fond de trou

Publications (1)

Publication Number Publication Date
EP4276272A1 true EP4276272A1 (fr) 2023-11-15

Family

ID=81603532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22172789.4A Pending EP4276272A1 (fr) 2022-04-20 2022-05-11 Train d'outils de fond de trou

Country Status (1)

Country Link
EP (1) EP4276272A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177938A (en) * 1958-10-23 1965-04-13 Schlumberger Well Surv Corp Methods and apparatus for operating borehole equipment
US3831443A (en) * 1972-01-26 1974-08-27 Schlumberger Technology Corp Apparatus for intercoupling well tool sections having electrical and fluid lines
WO2008091157A1 (fr) * 2007-01-23 2008-07-31 Wellbore Solutions As Dispositif de transport d'outils dans des puits de forage et des pipelines
WO2009014932A2 (fr) * 2007-07-25 2009-01-29 Schlumberger Canada Limited Appareils et procédés pour effectuer des opérations dans un puits de forage à l'aide d'outils de fond de trou ayant des sections mobiles
US20090223659A1 (en) * 2008-03-06 2009-09-10 Baker Hughes Incorporated Through tubing gun lock
EP2505768A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ressort à sécurité intégrée
EP2813665A1 (fr) * 2013-06-14 2014-12-17 Welltec A/S Système et procédé d'usinage de fond de trou
US20150285017A1 (en) * 2013-12-27 2015-10-08 Halliburton Energy Services, Inc. Downhole tool string braking
WO2017211825A1 (fr) * 2016-06-07 2017-12-14 Welltec A/S Outil fonctionnel de fond de trou
US20210340830A1 (en) * 2020-04-30 2021-11-04 Welltec Oilfield Solutions Ag Downhole tubing intervention tool

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177938A (en) * 1958-10-23 1965-04-13 Schlumberger Well Surv Corp Methods and apparatus for operating borehole equipment
US3831443A (en) * 1972-01-26 1974-08-27 Schlumberger Technology Corp Apparatus for intercoupling well tool sections having electrical and fluid lines
WO2008091157A1 (fr) * 2007-01-23 2008-07-31 Wellbore Solutions As Dispositif de transport d'outils dans des puits de forage et des pipelines
WO2009014932A2 (fr) * 2007-07-25 2009-01-29 Schlumberger Canada Limited Appareils et procédés pour effectuer des opérations dans un puits de forage à l'aide d'outils de fond de trou ayant des sections mobiles
US20090223659A1 (en) * 2008-03-06 2009-09-10 Baker Hughes Incorporated Through tubing gun lock
EP2505768A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ressort à sécurité intégrée
EP2813665A1 (fr) * 2013-06-14 2014-12-17 Welltec A/S Système et procédé d'usinage de fond de trou
US20150285017A1 (en) * 2013-12-27 2015-10-08 Halliburton Energy Services, Inc. Downhole tool string braking
WO2017211825A1 (fr) * 2016-06-07 2017-12-14 Welltec A/S Outil fonctionnel de fond de trou
US20210340830A1 (en) * 2020-04-30 2021-11-04 Welltec Oilfield Solutions Ag Downhole tubing intervention tool

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