WO2009028953A1 - Procédé et dispositif permettant le retrait de la partie supérieure d'un puits - Google Patents

Procédé et dispositif permettant le retrait de la partie supérieure d'un puits Download PDF

Info

Publication number
WO2009028953A1
WO2009028953A1 PCT/NO2008/000302 NO2008000302W WO2009028953A1 WO 2009028953 A1 WO2009028953 A1 WO 2009028953A1 NO 2008000302 W NO2008000302 W NO 2008000302W WO 2009028953 A1 WO2009028953 A1 WO 2009028953A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
tool
lifting
cutting tool
well
Prior art date
Application number
PCT/NO2008/000302
Other languages
English (en)
Inventor
Erling J. Wiig
Espen Alhaug
Lars Hovda
Original Assignee
Norse Cutting & Abandonment 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 Norse Cutting & Abandonment As filed Critical Norse Cutting & Abandonment As
Priority to GB1002387A priority Critical patent/GB2463849B/en
Priority to AU2008293123A priority patent/AU2008293123B2/en
Priority to MX2010002311A priority patent/MX2010002311A/es
Priority to BRPI0816053-8A2A priority patent/BRPI0816053A2/pt
Publication of WO2009028953A1 publication Critical patent/WO2009028953A1/fr
Priority to ZA2010/01615A priority patent/ZA201001615B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot

Definitions

  • This invention relates to a method for removing the upper portion of a well. More particularly, it relates to a method for removing the upper portion of a well arranged in the ground, in which the upper portion of the well includes at least a portion of a casing extending from the surface down into the ground, and in which, before the removal of the upper portion of the well, the casing is cut at a distance below the surface.
  • the method includes the operations of: arranging a cutting tool, which is arranged to cut the casing at a distance below the surface, on a lifting tool which is arranged to be connected to the casing or a component connected to the casing; lowering the lifting tool together with the cutting tool until the lifting tool abuts against the casing or the component connected to the casing; connecting the lifting tool to the casing or the component connected to the casing; cutting the casing by means of the cutting tool; lifting the portion of the casing out of the ground together with the cutting tool.
  • the invention also includes a device for practising the method.
  • the surface may be constituted by a seabed.
  • the well which may typically be an independent one or belong to a group of wells in a well frame, most often includes a composite casing, in which several casings of different diameters are positioned one inside the other, and in which an- nuli formed between the casings are normally filled with concrete.
  • a single or composite casing which may also include other pipes, for example drive pipe, is termed a casing below.
  • the casing typically extends into the ground from a wellhead which is located, in the case of a submerged well, above the seabed.
  • the upper portion of the well is removed by first placing a rig vessel above the well.
  • the casing is cut below the seabed, typically by means of a mechanical cutting tool.
  • the cutting tool is removed from the well, after which the lifting equipment of the rig vessel is connected to the casing.
  • the severed upper portion of the casing is then lifted out of the ground.
  • the prior art method presupposes the use of a relatively large vessel which is provided with drilling equipment, and is, because of repeated connection to the well among other things, relatively time-consuming.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art .
  • a method in accordance with the invention for the removal of the upper portion of a well arranged in the ground, in which the upper portion of the well includes at least a portion of a casing extending from the surface into the ground, and in which, before the removal of the upper portion of the well, the casing is cut at a distance below the surface, is characterized by the method including the operations of:
  • the cutting tool can be moved relative to the lifting tool after the lifting tool has been placed on the casing or the component connected to the casing.
  • the cutting tool is placed at a distance below the lifting tool before the lifting tool abuts against the casing or the component connected to the casing.
  • the cutting tool is secured to the casing before the cutting operation itself is started.
  • a device for practising the method also named a cutting device below, includes a cutting tool of a design known per se, for example in accordance with NO 314733.
  • the cutting tool is placed at a distance below a lifting tool.
  • the lifting tool which is arranged to be connected in a controlled manner to the casing or a component connected to the casing, is formed in accordance with a technology known per se.
  • the lifting tool is connected to the lifting equipment of a vessel, for example to a crane .
  • the cutting tool is arranged concentrically relative to the lifting tool, the connecting cable of the cutting tool to the vessel extending via the lifting tool.
  • the connecting cable includes hoses for fluid flow and also necessary electrical cables.
  • the lifting tool may be provided with a mechanism which is arranged to move the cutting tool axially relative to the lifting tool.
  • the lifting tool is provided with a locking mechanism for it to be connected to the casing or a component connected to the casing, typically formed by a wellhead.
  • the method and device according to the invention provide a substantially simplified procedure for the removal of the upper portion on a well, as several relatively time-consuming operations have been made redundant.
  • the method and device are well suited for use on relatively small vessels with the resulting reduction in cost.
  • Figure 1 shows schematically a cutting tool and lifting tool in accordance with the invention, which are being lowered down to a well on the seabed;
  • Figure 2 shows the lifting tool abutting against a wellhead
  • Figure 3 shows the same as figure 2 but here the lifting tool is connected to the wellhead, the cutting tool is secured to the casing and the cutting operation has been started;
  • Figure 4 shows schematically the upper portion of the well lifted out of the seabed together with the cutting tool.
  • the reference numeral 1 indicates a cutting device including a- cutting tool 2 and a lifting tool 4, the cutting tool 2 having been positioned at a predetermined vertical distance, for example in the order of ten metres, below the lifting tool 4.
  • the cutting tool 2 is constituted by a hydraulic cutting tool, in which there is used an abrasive fluid, exiting under high pressure substantially radially from a rotating nozzle 6.
  • the cutting tool 2 is supplied with fluid and electrical current, for example for measuring equipment not shown, via a cable 8 extending from the cutting tool 2 up to a vessel not shown.
  • the cutting tool 2 is provided with two securing devices 10.
  • the lifting equipment 4 is constituted by a wellhead tool, known per se, which is connected to the lifting equipment of the vessel, not shown, by means of a chain 12.
  • the lifting tool 4 is provided with controllable locking dogs 14.
  • the cable 8 of the cutting tool 2 extends via a guide pipe 16 through the lifting tool 4, the cutting tool 2 hanging concentrically below the lifting tool 4.
  • the wellhead 22 forms the component connected to the casing 24, as it is described in the general part of the specification and in the set of claims .
  • the wellhead 22 is provided with a connecting portion 30.
  • the pipe bore 32 of the well 20 extends through the wellhead 22 and further within the casing 24.
  • the cutting device 1 is lowered down towards the well 20, see figure 1.
  • the cutting tool 2 hanging below the lifting tool 4 is moved into the pipe bore 32 until the lifting tool 4, com- plementarily fitting the connecting portion 30, abuts against the wellhead 22, see figure 2.
  • the securing devices 10 are then urged against the pipe bore 32 to hold the cutting tool 2 in a fixed position relative to the casing 24.
  • the lifting tool 4 is connected to the wellhead 22 by each of the locking dogs 14 being pivoted from its respective inactive position into its active position, in which the locking dog 14 grips under the connecting portion 30, see figure 3.
  • the casing 24 is cut by means of abrasive fluid flowing at great velocity from the nozzle 6 against the casing 24 while the nozzle 6 is being rotated about its longitudinal axis at the same time .
  • the chain 12 may be replaced completely or partially by, for example, a wire, not shown. It is emphasized that the casing 24 may be constructed as is mentioned under the prior art in the first part of the description.

Abstract

La présente invention concerne un procédé et un dispositif permettant le retrait de la partie supérieure d'un puits (20) disposée dans le sol, la partie supérieure du puits (20) comportant au moins une partie d'un tubage (24) s'étendant depuis la surface vers le bas dans le sol (28), et, préalablement au retrait de la partie supérieure du puits (20), le tubage (24) étant découpé à une distance sous la surface, le procédé comprenant les étapes suivantes : la disposition d'un outil de coupe (2), qui est agencé pour découper le tubage (24) à une distance sous la surface, sur un outil de levage (4) qui est agencé pour être relié au tubage (24) ou un élément (22) relié au tubage ; l'abaissement de l'outil de levage (4) avec l'outil de coupe (2) vers le bas en direction du tubage (24) jusqu'à ce que l'outil de levage (4) soit adjacent contre le tubage (24) ou l'élément (22) relié au tubage ; le raccordement de l'outil de levage (4) au tubage (24) ou à l'élément (22) relié au tubage ; la découpe du tubage (24) au moyen de l'outil de coupe (2) ; et le levage de la partie découpée du tubage (24) hors du sol (28) au moins conjointement avec l'outil de coupe (2).
PCT/NO2008/000302 2007-08-30 2008-08-27 Procédé et dispositif permettant le retrait de la partie supérieure d'un puits WO2009028953A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1002387A GB2463849B (en) 2007-08-30 2008-08-27 Method and device for removing the upper portion of a well
AU2008293123A AU2008293123B2 (en) 2007-08-30 2008-08-27 Method and device for removing the upper portion of a well
MX2010002311A MX2010002311A (es) 2007-08-30 2008-08-27 Metodo y dispositivo para retirar la porcion superior de un pozo.
BRPI0816053-8A2A BRPI0816053A2 (pt) 2007-08-30 2008-08-27 Métodos e dispositivo para remoção da parte superior de um poço
ZA2010/01615A ZA201001615B (en) 2007-08-30 2010-03-05 Method and device for removing the upper portion of a well

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20074420A NO327223B3 (no) 2007-08-30 2007-08-30 Fremgangsmate og anordning for fjerning av en bronns ovre parti
NO20074420 2007-08-30

Publications (1)

Publication Number Publication Date
WO2009028953A1 true WO2009028953A1 (fr) 2009-03-05

Family

ID=40119395

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2008/000302 WO2009028953A1 (fr) 2007-08-30 2008-08-27 Procédé et dispositif permettant le retrait de la partie supérieure d'un puits

Country Status (7)

Country Link
AU (1) AU2008293123B2 (fr)
BR (1) BRPI0816053A2 (fr)
GB (1) GB2463849B (fr)
MX (1) MX2010002311A (fr)
NO (1) NO327223B3 (fr)
WO (1) WO2009028953A1 (fr)
ZA (1) ZA201001615B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8307903B2 (en) 2009-06-24 2012-11-13 Weatherford / Lamb, Inc. Methods and apparatus for subsea well intervention and subsea wellhead retrieval
GB2527202A (en) * 2014-05-21 2015-12-16 Proserv Uk Ltd Cutting tool
US9222328B2 (en) 2012-12-07 2015-12-29 Smith International, Inc. Wellhead latch and removal systems
EP2964874A4 (fr) * 2013-03-06 2016-12-14 Enventure Global Tech L L C Procédé et appareil pour enlever un sabot non agrandi
US10385640B2 (en) 2017-01-10 2019-08-20 Weatherford Technology Holdings, Llc Tension cutting casing and wellhead retrieval system
GB2578355B (en) * 2018-08-14 2022-01-19 First Subsea Ltd An Apparatus and Method for Removing an End Section of a Tubular Member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9926758B1 (en) 2016-11-29 2018-03-27 Chevron U.S.A. Inc. Systems and methods for removing components of a subsea well

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1358818A (en) * 1920-04-07 1920-11-16 Bering Robert Ellis Casing-cutter
US5146989A (en) * 1989-08-03 1992-09-15 Homco International Inc. Apparatus for recovering a wellhead
US5318115A (en) * 1991-09-24 1994-06-07 Weatherford U.S., Inc. Casing cutting and retrieving tool
US6041860A (en) * 1996-07-17 2000-03-28 Baker Hughes Incorporated Apparatus and method for performing imaging and downhole operations at a work site in wellbores

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1358818A (en) * 1920-04-07 1920-11-16 Bering Robert Ellis Casing-cutter
US5146989A (en) * 1989-08-03 1992-09-15 Homco International Inc. Apparatus for recovering a wellhead
US5318115A (en) * 1991-09-24 1994-06-07 Weatherford U.S., Inc. Casing cutting and retrieving tool
US6041860A (en) * 1996-07-17 2000-03-28 Baker Hughes Incorporated Apparatus and method for performing imaging and downhole operations at a work site in wellbores

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8307903B2 (en) 2009-06-24 2012-11-13 Weatherford / Lamb, Inc. Methods and apparatus for subsea well intervention and subsea wellhead retrieval
US8662182B2 (en) 2009-06-24 2014-03-04 Weatherford/Lamb, Inc. Methods and apparatus for subsea well intervention and subsea wellhead retrieval
US9222328B2 (en) 2012-12-07 2015-12-29 Smith International, Inc. Wellhead latch and removal systems
EP2740885A3 (fr) * 2012-12-07 2016-06-01 Schlumberger Technology B.V. Systèmes de retrait et verrouillage de tête de puits
EP2964874A4 (fr) * 2013-03-06 2016-12-14 Enventure Global Tech L L C Procédé et appareil pour enlever un sabot non agrandi
GB2527202A (en) * 2014-05-21 2015-12-16 Proserv Uk Ltd Cutting tool
GB2527202B (en) * 2014-05-21 2017-05-10 Proserv Uk Ltd Cutting tool
US10385640B2 (en) 2017-01-10 2019-08-20 Weatherford Technology Holdings, Llc Tension cutting casing and wellhead retrieval system
GB2578355B (en) * 2018-08-14 2022-01-19 First Subsea Ltd An Apparatus and Method for Removing an End Section of a Tubular Member

Also Published As

Publication number Publication date
GB2463849B (en) 2011-12-07
NO20074420L (no) 2009-03-02
AU2008293123B2 (en) 2011-09-29
BRPI0816053A2 (pt) 2015-03-03
ZA201001615B (en) 2011-05-25
AU2008293123A1 (en) 2009-03-05
NO327223B3 (no) 2010-06-28
GB201002387D0 (en) 2010-03-31
NO327223B1 (no) 2009-05-18
GB2463849A (en) 2010-03-31
MX2010002311A (es) 2010-06-01

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