EP3298230B1 - Verfahren und vorrichtung zum schrumpfen von rohrabschnitten - Google Patents

Verfahren und vorrichtung zum schrumpfen von rohrabschnitten Download PDF

Info

Publication number
EP3298230B1
EP3298230B1 EP16796818.9A EP16796818A EP3298230B1 EP 3298230 B1 EP3298230 B1 EP 3298230B1 EP 16796818 A EP16796818 A EP 16796818A EP 3298230 B1 EP3298230 B1 EP 3298230B1
Authority
EP
European Patent Office
Prior art keywords
tubular
shrinkage
die
forming die
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.)
Active
Application number
EP16796818.9A
Other languages
English (en)
French (fr)
Other versions
EP3298230A1 (de
EP3298230A4 (de
Inventor
Mohammad Ali Taghipour Khadrbeik
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.)
SINTEF TTO AS
Original Assignee
SINTEF TTO 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 SINTEF TTO AS filed Critical SINTEF TTO AS
Publication of EP3298230A1 publication Critical patent/EP3298230A1/de
Publication of EP3298230A4 publication Critical patent/EP3298230A4/de
Application granted granted Critical
Publication of EP3298230B1 publication Critical patent/EP3298230B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • E21B29/007—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-retracting cutter rotating outside the pipe
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/002—Destroying the objects to be fished, e.g. by explosive means
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like

Definitions

  • the invention relates to a complete system for reducing diameter of tubular pipes more precisely it relates to a drill string system for plug and abandoning of wells, the present invention relates to devices and methods of such a system.
  • the invention relates to a complete system for reducing diameter of tubular pipes.
  • WO 2008118697 discloses a system of common use for recovering casing from the abandoned wells.
  • the present invention enables casing section removal with milling only parts of a tubular/casing.
  • a shrinkage tool assembly for shrinkage and recovery of a wellbore tubular according to claim 1, a shrinkage forming die according to claim 6 and a method for shrinkage and recovery of a wellbore tubular according to claim 8.
  • the forming die may consist of at least one mechanical mean for guiding the tubular into the die, where the mechanical mean will be activated by mean of an actuating system.
  • the recovered tubular section may have at least one helical or straight groove along the longitudinal axis of the tubular.
  • a shrinking tool which may utilize the method s indicated above and where the shrinking tool is adjacent to a milling tool, where the milling tool is adapted to mill at least one radial groove and at least one axial or helical groove along the longitudinal axis of the tubular.
  • the shrinking tool may be pulled by mean of a moving tractor or other means like as wireline or drillstring from inside the tubular.
  • the tool comprises at least one anchoring mean for pulling one section of the tubular, where the separated section consist of at least on helical or axial groove along the longitudinal axis of the tubular.
  • the invention relates to a system 1, i.e. a shrinkage tool assembly for shrinkage and recovery of a wellbore tubular, for abandoning and plugging of oil wells as well as a system made for shrinking sections of tubular.
  • the system comprises a forming die 15, which can be used in oil, gas and deep-water wells, mining and underground operations.
  • the tools enable to shrink a section of a tubular 91 and reduce the diameter.
  • a forming tool integrated in a shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular comprises the mentioned forming die 15, a milling section 13 including means for milling out helical or axial grooves in tubulars 92 and at least a tractor 10 or pulling means 10.
  • the forming die 15 can be used to shrink a casing while the shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular moves axially inside the tubular. This enables to pull out and recover a section of the tubular/casing through the rest of the tubular/casing that remains in the well. In addition, the forming die 15 reduces the de-bonding force for the tubular from the cement/formation.
  • shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular except if nothing else is explicitly mentioned.
  • the present invention relates to a system, which is adapted to take out sections of casings or sections of pipes.
  • the system 1 will now be described with reference to figure 1 .
  • the system 1 which is the shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular comprises a tractor 10, a milling section 13 and a forming die section 15.
  • the tractor 15 is the front end of the system with reference to the active travel direction that is, when the system 1 is actively milling and shrinking tubulars or casings. Following the tractor is the milling section 13, the milling section includes at least one cutting tool 14.
  • the forming die 15 is adapted to shrink casings or tubulars, which already has been prepared by the milling, section 13 so that the tubulars or casing has premade axial or helical grooves.
  • the tractor 10 is the propulsion unit of the drill string, it is shown in detail in figure 4 .
  • the tractor comprises two pistons 42, 43 connected with a push pull piston rod 12 there between.
  • the push pull piston rod can move the end piston 42 relative to the near piston 43 and the rest of the shrinkage tool assembly (1) for shrinkage and recovery of a wellbore tubular in an axial direction.
  • the near piston 43 retracts its anchor pads 11 and the end piston 42 can pull the near piston 43 with its drillstring in the x-direction thereby causing the whole drillstring including the milling section and the die form 15 to move in the x-direction.
  • the milling section 13 follows the tractor and is in between the forming die 15 and the tractor 10.
  • the milling section shall provide axial grooves in piping-sections or casing sections.
  • the groove shall be axial the shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular will not rotate around its axis A - A ( fig 2 ).
  • the tractor 10 provides movement of the shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular the milling section provides axial grooves.
  • One or more side cutters 14 are integrated in the milling section 13. The one or more side cutters rotate around its axis of rotation, where the axis of rotation is substantially normal to the axis A-A and the surrounding walls.
  • the cutter 14 or cutters 14 can be retractable and expandable. In its expandable positon with one or more rotating cutters, an axial groove will be made in the casing / surrounding tube.
  • the cutter 14 or cutters 14 can be rotated by using hydraulic driven/mud motor system placed inside the main housing.
  • An internal hydraulic driving system can be placed, axial to the side cutters or axial to the direction of the milling tool and to rotate the side cutters 14 by using a gear/transmission system or by direct drive.
  • the driving means can be electric motors with gear transmission drive or by direct drive.
  • FIGS. 5c shows an example of use of internal mud motor(s) including a proper gear transmission system 67 for driving the side cutters 14. Any suitable gear type can be utilised. Different gear types such as worm or bevel can be used depending on the tool design. In addition, high torque hydro-motors can also be employed without gear system, the same applies to electric motors.
  • Each side cutter has individual driving system and can be operated independent of the other side cutters.
  • a shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular is shown in figure 1 , 2 and 3 .
  • the figures 6 - 10 shows a forming die 15 in detail.
  • the forming die has a c-shape entrance opening ( fig. 7a, 7b ) which has similar diameter D1 as a grooved tubular 72 in an entrance end and a smaller diameter DB at the exit end.
  • the shrinkage tool assembly 1 for shrinkage and recovery of a wellbore tubular moves axially within the grooved wellbore tubular, the tubular is pushed into the C shaped die entrance opening 83 and inside the C-outer sleeve 75 of the forming die 15.
  • the forming die consists of a mechanical means 16 for guiding the grooved tubular 72 or grooved casing into the opening entrance of the die.
  • This mechanical means is an expandable guiding arm 16, which radially expands out of the tool body 15 when needed.
  • the forming die 15 and the milling tool 13 are adapted to be pulled by a moving tractor 10 or any other means through the wellbore longitude axis.
  • Another mean for pulling the die 15 can be by wire, cable or drillstring.
  • the milling tool 13 with actively driven side rotational cutters 14 can drill hole and mill axial, helical or radial grooves inside the tubular sidewalls.
  • this system 1 includes components, which together facilitates abandonment and plugging of oil wells and dismantling in sewerage systems.
  • the milling tool 13 can create at least one helical groove and at least two radial grooves inside the casing downhole in the well.
  • a rotational milling tool with one or more rotational side cutters 14. This enables to create a separated casing section from the tubular.
  • the separated casing section with at least one helical groove can be pulled in an axial direction, which causes casing shrinkage and de-bonding from the formation cement.
  • the separated casing can then be pulled out through the remaining casing inside the well.
  • the moving tractor or other means for example the drillstring or wire line, can pull the separated casing section.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (10)

  1. Schrumpfwerkzeuganordnung (1) zum Schrumpfen und Rückverformen eines Bohrlochförderrohrs, wobei die Schrumpfwerkzeuganordnung (1) mindestens umfasst:
    a. ein Umformwerkzeug (15), das entlang der Achse des Bohrlochförderrohrs angeordnet ist, wobei das Umformwerkzeug (15) zum Schrumpfen von Futterrohren oder Förderrohren ausgelegt ist, die bereits mit einem Fräswerkzeug (13) vorbereitet wurden, so dass die Bohrlochförderrohre vorgefertigte axiale oder spiralförmige Nuten aufweisen,
    b. ein Zugmittel (10) zum Ziehen der Schrumpfwerkzeuganordnung (1) und
    c. ein aktives Fräswerkzeug (13), wobei das Fräswerkzeug (13) einen oder mehrere aktiv angetriebene seitliche Rotationsschneider (14) umfasst, die Löcher bohren und axiale, spiralförmige oder radiale Nuten innerhalb der Förderrohrseitenwand fräsen können, wobei das Umformwerkzeug konfiguriert ist, um von dem Zugmittel aus dem Inneren des Förderrohrs gezogen zu werden, und wobei das Umformwerkzeug aus einem C-förmigen hochgezogenen Schnitt im Inneren des Werkzeugkörpers mit einem größeren Profildurchmesser am Einlass und einem kleineren Profildurchmesser am Auslass besteht.
  2. Schrumpfwerkzeuganordnung (1) nach Anspruch 1, wobei das Umformwerkzeug (15) aus mindestens einem mechanischen Mittel (16) zum Führen des Förderrohrs in das Umformwerkzeug besteht, wobei das mechanische Mittel konfiguriert ist, um mittels eines Betätigungssystems aktiviert zu werden.
  3. Schrumpfwerkzeuganordnung (1) nach Anspruch 1, wobei ein rückverformter Förderrohrabschnitt mindestens eine spiralförmige oder gerade Nut entlang der Längsachse des Förderrohrs aufweisen kann, die durch das aktive Fräswerkzeug (13) hergestellt wurde.
  4. Schrumpfwerkzeuganordnung (1) nach Anspruch 1, 2 und 3, wobei das Fräswerkzeug ausgelegt ist, um mindestens eine radiale Nut und mindestens eine axiale oder spiralförmige Nut entlang der Längsachse des Förderrohrs zu fräsen.
  5. Schrumpfwerkzeuganordnung nach Anspruch 1, wobei das Werkzeug (1) mindestens ein Verankerungsmittel zum Ziehen eines Abschnitts des Förderrohrs umfasst, wobei der getrennte Abschnitt aus mindestens einer spiralförmigen oder axialen Nut entlang der Längsachse des Förderrohrs besteht.
  6. Schrumpfumformwerkzeug (15), umfassend:
    ein Werkzeugeinlassende (61), einen sich verjüngenden zylindrischen Umformwerkzeugkörper (63) mit einem ersten Ende neben dem Werkzeugeinlassende (61), wobei das erste Ende neben dem Werkzeugeinlassende (61) den breitesten Durchmesser aufweist und der sich verjüngende zylindrische Umformwerkzeugkörper (63) ein zweites Ende gegenüber dem ersten Ende aufweist;
    eine C-förmige Eintrittsöffnung (83) mit einem Durchmesser D1 an einem vorderen Ende neben dem zweiten Ende des sich verjüngenden zylindrischen Umformwerkzeugkörpers (63) und einem kleineren Durchmesser D2 an der Werkzeugauslassrückseite (62);
    einen verlängerten radial ausfahrbaren Führungsarm (16), der am Umfang des Schrumpfumformwerkzeugs (15) angeordnet ist und dessen Längsrichtung in Bezug auf das Schrumpfumformwerkzeug (15) axial ausgerichtet ist und der konfiguriert ist, um Futterohre oder Förderrohre mit einer oder mehreren Nuten zu führen.
  7. Schrumpfformwerkzeug (15) nach Anspruch 6, wobei der verlängerte radial ausfahrbare Führungsarm (16) ein erstes Element (81) mit einer Breite Z2 und ein zweites Element (82) mit einer Breite Z3 umfasst, wobei Z3 > Z2, das erste Element (81) neben dem Werkzeugeinlassende (61) angeordnet ist und das zweite Element radial außerhalb des ersten Elements (81) und axial näher an der Werkzeugauslassrückseite (62) angeordnet ist.
  8. Verfahren zum Schrumpfen und Rückverformen eines Bohrlochförderrohrs, umfassend die Schritte:
    a. Bereitstellen einer Schrumpfwerkzeuganordnung (1), wobei die Schrumpfwerkzeuganordnung umfasst:
    i. ein Umformwerkzeug (15), das entlang der Achse des Bohrlochförderrohrs angeordnet ist, wobei das Umformwerkzeug (15) zum Schrumpfen von Futterrohren oder Förderrohren ausgelegt ist, die bereits mit einem Fräswerkzeug (13) vorbereitet wurden, so dass die Bohrlochförderrohre vorgefertigte axiale oder spiralförmige Nuten aufweisen,
    ii. ein Zugmittel (10) zum Ziehen der Schrumpfwerkzeuganordnung (1) und
    iii. ein aktives Fräswerkzeug (13), wobei das Fräswerkzeug (13) einen oder mehrere aktiv angetriebene seitliche Rotationsschneider (14) umfasst, die Löcher bohren und axiale, spiralförmige oder radiale Nuten innerhalb der Förderrohrseitenwand fräsen können,
    b. Ziehen des Umformwerkzeugs (15) durch das Zugmittel aus dem Inneren des Förderrohrs, wobei das Umformwerkzeug aus einem C-förmigen hochgezogenen Schnitt im Inneren des Werkzeugkörpers mit einem größeren Profildurchmesser am Einlass und einem kleineren Profildurchmesser am Auslass besteht.
  9. Verfahren nach Anspruch 8, ferner umfassend die Schritte:
    c. Eindringen in ein genutetes Förderrohr (72), wobei sich der Werkzeugeinlass (61) innerhalb der Außenwände des genuteten Förderrohrs (72) befindet;
    d. Weiterziehen des Umformwerkzeugeinlasses (61) weiter in das genutete Förderrohr (72),
    e. Eindringen eines verlängerten radial ausfahrbaren Führungsarms (16), der am Umfang des Schrumpfumformwerkzeugs (15) angeordnet ist und dessen Längsrichtung in Bezug auf das Schrumpfumformwerkzeug (15) axial ausgerichtet ist, in die Nut des genuteten Förderrohrs (72);
    f. Gedrücktwerden des genuteten Förderrohrs (72) in den C-förmigen hochgezogenen Schnitt im Inneren des Werkzeugkörpers (15) mit einem größeren Profildurchmesser am Einlass (83) und einem kleineren Profildurchmesser am Auslass (62), und
    g. Austreten eines ersten Endes des genuteten Förderrohrs (72) aus der Werkzeugauslassrückseite (62) mit einem Durchmesser, der kleiner als sein Durchmesser ist, wenn es in den C-förmigen hochgezogenen Schnitt (83) im Inneren des Werkzeugkörpers (15) eindringt.
  10. Verfahren nach Anspruch 9, ferner umfassend den Schritt:
    Bereitstellen eines ersten Elements (81) mit einer Breite Z2 und eines zweiten Elements (82) mit einer Breite Z3, wobei Z3 > Z2 ist, Anordnen des ersten Elements (81) neben dem Werkzeugeinlassende (61) und Anordnen des zweiten Elements radial außerhalb des ersten Elements (81) und axial näher an der Werkzeugauslassrückseite (62).
EP16796818.9A 2015-05-19 2016-05-19 Verfahren und vorrichtung zum schrumpfen von rohrabschnitten Active EP3298230B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20150624A NO20150624A1 (en) 2015-05-19 2015-05-19 A shrinking tool for shrinkage and recovery of a wellbore tubular.
PCT/NO2016/050097 WO2016186517A1 (en) 2015-05-19 2016-05-19 A method and apparatus for shrinking tubular sections

Publications (3)

Publication Number Publication Date
EP3298230A1 EP3298230A1 (de) 2018-03-28
EP3298230A4 EP3298230A4 (de) 2019-06-19
EP3298230B1 true EP3298230B1 (de) 2020-08-19

Family

ID=57320760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16796818.9A Active EP3298230B1 (de) 2015-05-19 2016-05-19 Verfahren und vorrichtung zum schrumpfen von rohrabschnitten

Country Status (3)

Country Link
EP (1) EP3298230B1 (de)
NO (1) NO20150624A1 (de)
WO (1) WO2016186517A1 (de)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB616199A (en) * 1945-08-30 1949-01-18 British Thomson Houston Co Ltd Improvements in and relating to heading dies and extrusion dies and method of makingthe same
FR2765619B1 (fr) * 1997-07-01 2000-10-06 Schlumberger Cie Dowell Procede et dispositif pour la completion de puits pour la production d'hydrocarbures ou analogues
EP0952305A1 (de) * 1998-04-23 1999-10-27 Shell Internationale Researchmaatschappij B.V. Verformbares Rohr
US20080236829A1 (en) * 2007-03-26 2008-10-02 Lynde Gerald D Casing profiling and recovery system
US9022117B2 (en) * 2010-03-15 2015-05-05 Weatherford Technology Holdings, Llc Section mill and method for abandoning a wellbore
NO334664B1 (no) * 2010-08-12 2014-05-12 Sinvent As Skjæreverktøy integrert i en borestreng
NO333912B1 (no) * 2011-11-15 2013-10-21 Leif Invest As Apparat og fremgangsmåte for kutting og trekking av fôringsrør
BR112015023691B1 (pt) * 2013-03-15 2021-10-26 Schlumberger Technology B.V. Ferramenta de corte de fundo de poço, método para operar ferramenta de corte de fundo de poço e conjunto de fundo de poço
US9359848B2 (en) * 2013-06-04 2016-06-07 Halliburton Energy Services, Inc. Systems and methods for removing a section of casing
WO2015042136A1 (en) * 2013-09-18 2015-03-26 Lockheed Martin Corporation Friction-stir mandrel and friction-stir extrusion and drawing processes
EP2990591A1 (de) * 2014-08-29 2016-03-02 University Of Stavanger Verfahren und Werkzeug zur Beseitigung von Verkleidungen in Bohrlöchern

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3298230A1 (de) 2018-03-28
WO2016186517A1 (en) 2016-11-24
NO20150624A1 (en) 2016-11-21
EP3298230A4 (de) 2019-06-19

Similar Documents

Publication Publication Date Title
RU2649701C2 (ru) Скважинная обрабатывающая система и способ обработки
EP2140096B1 (de) Vorrichtung und verfahren zur fräsung eines begrenzten verrohrungsschuhs
US10287860B2 (en) Downhole mechanical tubing perforator
US11261690B2 (en) Downhole method and system for providing zonal isolation with annular barrier expanded from within and through well tubular metal structure
US20250257621A1 (en) Downhole tool string
WO2016186516A1 (en) Milling tool with self driven active side cutters
EP3298230B1 (de) Verfahren und vorrichtung zum schrumpfen von rohrabschnitten
EP4276272A1 (de) Bohrlochwerkzeugstrang
NO20161434A1 (en) A hole forming tool
US10450820B2 (en) Method and apparatus for swarf disposal in wellbores
EP2820227B1 (de) Zuführungsvorrichtung für ein bohrlochwerkzeug und verfahren zum axialen vorschub eines bohrlochwerkzeugs
CN116163668A (zh) 煤矿井下复杂地层钻孔用弹性钢箍护孔工艺及配套装备
US11047184B2 (en) Downhole cutting tool and anchor arrangement
EP3680447A1 (de) Bohrlochverfahren
EP3800321A1 (de) Bohrlochverfahren
EA052223B1 (ru) Колонна скважинного инструмента
AU2021204357A1 (en) Method for separating nested well tubulars in gravity contact with each other
BR112021012493B1 (pt) Método de fundo de poço e sistema de fundo de poço para realizar o método de fundo de poço

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 31/00 20060101ALI20190211BHEP

Ipc: E21B 29/00 20060101AFI20190211BHEP

Ipc: E21B 31/16 20060101ALI20190211BHEP

Ipc: B21C 25/02 20060101ALI20190211BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20190517

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 31/00 20060101ALI20190513BHEP

Ipc: E21B 31/16 20060101ALI20190513BHEP

Ipc: B21C 25/02 20060101ALI20190513BHEP

Ipc: E21B 29/00 20060101AFI20190513BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200316

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016042396

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1304130

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20200819

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201221

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201120

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201119

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1304130

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016042396

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

26N No opposition filed

Effective date: 20210520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602016042396

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210519

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210519

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20160519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20250519

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20250519

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819