EP3036395B1 - Outil de lavage et de perforation en une seule manoeuvre pour condamner et abandonner un puits - Google Patents

Outil de lavage et de perforation en une seule manoeuvre pour condamner et abandonner un puits Download PDF

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Publication number
EP3036395B1
EP3036395B1 EP14755724.3A EP14755724A EP3036395B1 EP 3036395 B1 EP3036395 B1 EP 3036395B1 EP 14755724 A EP14755724 A EP 14755724A EP 3036395 B1 EP3036395 B1 EP 3036395B1
Authority
EP
European Patent Office
Prior art keywords
tool
well
sealing
fluid
openings
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
EP14755724.3A
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German (de)
English (en)
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EP3036395A2 (fr
Inventor
Sverre Bakken
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.)
Archer Oiltools AS
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Archer Oiltools 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
Priority claimed from NO20131131A external-priority patent/NO337076B1/no
Priority claimed from US13/972,419 external-priority patent/US9334712B2/en
Application filed by Archer Oiltools AS filed Critical Archer Oiltools AS
Publication of EP3036395A2 publication Critical patent/EP3036395A2/fr
Application granted granted Critical
Publication of EP3036395B1 publication Critical patent/EP3036395B1/fr
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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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators

Definitions

  • the present invention relates to a method of plugging a petroleum well permanently or temporary, for instance, during a plug and abandonment operation (P&A) or during other operations where setting of a barrier in the well is required, by use of a multitask tool.
  • P&A plug and abandonment operation
  • Petroleum wells for the exploitation of oil and/or gas from a reservoir normally consist of an upper and outer conductor, which forms the base of the well, an upper casing arranged into and in extension of the conductor, and further down in the well more casings which are arranged into and overlaps the above casing.
  • a production tubing string is located in the middle of the well for transporting petroleum from the bottom of the well to the earth's surface or to the sea floor. Annuli will then be formed between the different casings.
  • test wells which are only used for a shorter period prior to the production from the reservoir, and thus will be plugged after testing. If a test well is a successful well, such a well will normally be temporary plugged before the production starts, while a test well which is "dry", i.e. a well in which the hydrocarbon content is too small to be worth producing, will be plugged permanently.
  • a common requirement during plug and abandonment operations is to have a plug set inside an inner casing string and a further plug set in the annulus between the inner casing string and the outer casing string.
  • the plug will then extend across the full cross sectional area of the well and seal both vertically and horizontally in the well.
  • Document WO 2012/096580 A1 describes a method according to the preamble of claim 1, and a washing tool for combined cleaning of an annulus in a well across a longitudinal section of the well, and subsequent plugging of the longitudinal section.
  • European patent application EP2006486 A2 Hales describes a method of abandoning a well that includes the steps of: assembling a tool string including a perforating gun interconnected between first and second packer assemblies; conveying the tool string into a wellbore in a single trip into the wellbore; setting the first packer assembly; setting the second packer assembly; firing the perforating gun; and flowing cement into an annulus longitudinally between the first and second packer assemblies.
  • a system for abandoning a well includes a tool string configured for conveyance into a wellbore in a single trip into the wellbore, the tool string including a perforating gun interconnected between Z first and second packer assemblies, each of the first and second packer assemblies including a permanent packer.
  • One of the embodiments described in said document includes dropping of the perforation tool subsequent to perforation of the well, washing the perforated zone, setting the washing tool at a location in the well, and finally cementing in the perforated zone. Additionally, subsequent to that the cement has been introduced in the well, normally remaining washing fluid that has not been displaced during the cementing operation, has to be displaced by pressurizing the cement plug.
  • cement plug will not seal off the well properly, as not only the washing fluid will be forced or squeezed out of the tubular and into the surrounding formation, but also the cement. Furthermore, the cement plug will not be subjected to the same pressure over its length, whereby the cement may not be distributed equally around the periphery of the well.
  • an objective of the present invention is to provide a solution securing a more reliable and controlled displacement of the fluids, e.g. sealing fluids, present in the annulus in a plug and abandonment operation or in other operations where setting of a barrier in the well is required.
  • the fluids e.g. sealing fluids
  • Another objective is to provide a method making it possible performing perforation, washing and cementing in a single trip in the well.
  • the invention solves at least one of challenges in relation to the prior art solutions, where the cement is placed into the tubular whereafter the cement is pressurized out of the tubular and into the annulus, namely by providing a method that gives a proper displacement of the fluid present in the annulus during the cementing sequence of a P&A operation.
  • a method ensuring that a sealing fluid is placed in the annulus in a safe, controlled and confirmed manner. More specifically, the inventive method provides a placement of the sealing fluid in a controlled manner, where the sealing fluid is placed in the desired zone in the well to ensure that the barrier complies with Governmental standards as well as other applicable standards (DNV, NORSOK, API etc.).
  • the present invention relates to a method of performing a plug and abandonment operation or during other operations where setting of a barrier in the well is required by the use of a multitask tool, for instance a combined perforate and wash tool or just a wash tool, where the tool is used to displace both the washing liquid and the sealing liquid, at least one lower set of sealing arrangement and at least one upper set of sealing arrangement arranged below and above a fluid displacement arrangement, the fluid displacement arrangement comprising a plurality of radial holes, wherein the method comprises the steps of:
  • the lower and upper set of sealing arrangement being comprised of cups, e.g. swab cups, may comprise one or more individual swab cups for sealing against the surrounding formation, tubular etc.
  • the method may further comprise, subsequent to step c), but prior to step d), pulling and lowering the tool for a number of times in the perforated section for performing additional washing of the perforated section.
  • the method may further comprise, after step g), a step h) comprising by-passing excess sealing fluid or present annular fluid through a bypass-system bypassing the sealed portions of the well.
  • bypass-system is arranged in the tool and the sealing fluid or present annular fluid may be lead from the annulus through a second set of openings of the bypass-system, further through the tool and out of a first set of openings of the bypass-system to a location above the sealed portions of the well.
  • the tool comprises an internal plugging element, which internal plugging element may be adapted to be activated by means of a remote operation.
  • the sealing fluid may comprise cement for forming a cement plug.
  • the sealing fluid may also comprise other fluids such as Sandaband®, Thermaset® (Wellcem), Liquid Stone® or similar.
  • the steps may be performed in a single trip in to the well.
  • the steps may be performed in two or more trips in to the well.
  • the washing fluid and the sealing fluid may be lead through a plurality of radial holes of the displacement arrangement, and the radial holes may be arranged in a spaced-apart relationship around a circumference of the tool.
  • the method may further comprise the step of squeezing present annular fluid or sealing fluid from a location above the sealed portions to a location below the sealed portions in the well by leading the fluid through a first set of openings of a bypass-system above the sealed portions and out of a second set of openings of the bypass-system below the sealed portions.
  • the method may further comprise, after step h), a step i) comprising lifting the tool to a position above the sealing fluid in the well and cleaning the tool by pumping a washing fluid through the tool and the first and second set of openings of the bypass-system.
  • Fig. 1 shows the situation after that a desired zone of the well has been perforated, washed and cleaned by a combined perforate and wash tool 1.
  • a perforate gun is not used when there are existing perforations that can be employed for plugging. Otherwise the perforate gun is run with the wash tool 1 to make perforations.
  • a packer or bridge plug schematically illustrated in Figure 8 , is also located further downhole to support the sealing material to be delivered into the tubular that is perforated above to support the sealant below the perforated section 10. The plug can be run in on the same trip or a different trip as the tool 1.
  • the combined perforate and wash tool 1 has been lowered in the well until one lower set of sealing arrangements in the form of cups 2 is arranged below the lower part of the perforated section 10, the perforated section 10 being indicated by the broken lines, and one upper set of sealing arrangement in the form of cups 3 is just above the lower part of the perforated section 10.
  • This allows for circulation of sealing fluid (colored light grey in the Figures) between the lower set of sealing arrangement 2 and the upper set of sealing arrangement 3, and out through a plurality of radial holes 4 arranged between the lower and upper sets of sealing arrangements 2, 3 in the tool 1 from an inside of the tubing 11.
  • the flow pattern is disclosed by the arrows A1, A2 in the figures, forcing the sealing fluid from the bottom of the perforated section 10 radially outwardly towards the sidewalls of the casing 9 and perforated section 10, including formation 14, in operation of the tool 1.
  • the tool 1 has an internal plugging device 7 which is closed during this part of the operation.
  • Fig. 2 the pumping of the sealing fluid, e.g. cement, Thermaset®, Sandaband® or any other fluid, substances or other sealant or similar, has begun.
  • the level of sealing fluid has risen in the well, to a position in which the sealing fluid is at a higher elevation than the tool 1 in the well.
  • Fig. 3 the tool 1 has been pulled upwards in a controlled manner while pumping of the sealing fluid has proceeded.
  • the level of the sealing fluid above the tool 1 is held substantially constant.
  • the sealing fluid above the perforate and wash tool 1 has begun to fill the tool 1 from the annulus via the perforate and wash tool 1 bypass system, allowing the sealing fluid to fill the void below the perforate and wash tool 1, ensuring solid sealing fluid across the cross sectional area of the perforated section 10.
  • the bypass-system comprises a first set of openings 12 leading from the annulus towards the inside of the tool 1, bypassing the first and second sets of sealing arrangements 2, 3, and ending up in a second set of openings 13 arranged on the other side of the first and second sets of sealing arrangements 2, 3 compared to the first set of openings 12.
  • the by-pass lines extending from the openings in the first set of openings 12 to the second set of openings 13, may be separate lines leading from one opening to another opening, or alternatively, one or more common lines for a plurality of openings.
  • sealing fluid can be "sucked" from above the tool 1 towards the area below the tool 1 due to a change in pressure over the tool 1, as the tool 1 is pulled towards the surface, leaving an area without sealing fluid.
  • the bypass-system allows for sealing fluid to flow through the first set of openings 12 through the tool 1 and out of the second set of openings 13, providing a whole continuous sealing fluid plug in the well (also shown by arrows A4, A5).
  • Fig. 4 a continued pulling of the tool 1 has taken place until the perforate and wash tool 1 has been pulled above the perforated section 10 in the well and positioned inside a non-perforated tubular 15. Now the pumping of sealing fluid is stopped.
  • Fig. 5 it is disclosed a situation where the internal plugging device 7, which can be opened and closed multiple times, has been opened. This might be done in numerous ways of remote actuation, e.g. electric actuation, hydraulic actuation or by using a ball element, a valve or dart, a mud pulse, cement etc.
  • the sealing fluid is allowed to be displaced through the tool 1.
  • the bypass-system which is described in greater detail above, allow for the sealing fluid to be displaced through the bypass-system and up to a location above the tool 1.
  • the displacement of the sealing fluid is disclosed by arrows A6, A7, i.e. in through the second set of openings 13, further through the tool 1 and out of the first set of openings 12.
  • the displacement of the sealing fluid may be done the opposite way.
  • the tool 1 is continued to be pulled upwards until the sealing fluid is placed in the well as desired.
  • Fig. 6 it is disclosed a situation where the tool 1 has been pulled above the top of the sealing fluid.
  • a cleaning process of the tool 1 has been performed, e.g. by pumping washing fluid through the inside of the tubing 11 and down through the tool 1 and the open internal plugging device 7.
  • washed fluids can flow into the second set of openings 13, up through the tool 1, and out of the first set of openings 12.
  • the cleaning fluid is preferably another fluid than the sealing fluid, and such fluids are known to the person skilled in the art.
  • Fig. 7 discloses a situation where it is performed a squeeze of excess fluids in the well.
  • Sealing elements 16 are arranged around the tubing 11 and the squeeze is performed by pushing the tubing 11 and tool 1 downwards into the well. Another way to do this is to be able to close ports 13 so that there is no need for the seal 16 and move the tool 1 downhole, with or without fluid moving through the tool 1.
  • a fluid will be run through the tubing 11.
  • the tool 1 can be pulled to the surface instead of squeezing in cases where squeezing of excess fluid is unnecessary.
  • Fig. 8 discloses an overview of the perforate and wash tool 1 according to the invention arranged in the well, subsequent to that first a perforating operation and thereafter a washing operation have taken place, but prior to that the sealing fluid is pumped into the well.

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  • 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)
  • Pipe Accessories (AREA)
  • Drilling And Boring (AREA)
  • Devices For Opening Bottles Or Cans (AREA)

Claims (11)

  1. Procédé de réalisation d'une opération de condamnation et d'abandon dans un puits au moyen d'un outil (1) combiné de perforation et de lavage, l'outil (1) comprenant un outil de perforation (18) à une extrémité inférieure, au moins un ensemble inférieur d'agencement de scellement (2) disposé au-dessous d'un agencement de déplacement de fluide comprenant une pluralité de trous radiaux (4) et au moins un ensemble supérieur d'agencement de scellement (3) disposé au-dessus des trous radiaux (4), dans lequel le procédé comprend les étapes de:
    a) abaisser l'outil (1) à l'emplacement souhaité dans le puits,
    b) perforer au moins une section d'un revêtement du puits, si la section n'est pas déjà perforée,
    c) laver un espace annulaire autour de ladite section perforée (10) par pompage de fluide de lavage et/ou de nettoyage à travers les trous radiaux (4) de l'agencement de déplacement,
    le procédé étant caractérisé en ce qu'il comprend en outre les étapes de :
    d) obturer une partie inférieure du puits à un emplacement situé au-dessous de la section perforée (10) au moyen d'au moins un ensemble inférieur d'agencement de scellement (2),
    e) obturer le puits dans une partie inférieure de la section perforée (10) au moyen dudit ensemble supérieur d'agencement de scellement (3),
    f) pomper un fluide d'étanchéité à travers les trous radiaux (4) de l'agencement de déplacement,
    g) soulever l'outil (1) à travers, et au-dessus de, la section perforée (10), conjointement au pompage continu du fluide d'étanchéité.
  2. Procédé selon la revendication 1, dans lequel le procédé comprend en outre, après l'étape c) mais avant l'étape d), tirer et abaisser l'outil (1) plusieurs fois dans la section perforée (10) pour effectuer un lavage supplémentaire de la section perforée (10).
  3. Procédé selon l'une quelconque des revendications précédentes, dans lequel le procédé comprend en outre, après l'étape g), une étape h) de dériver un excès de fluide d'étanchéité ou de fluides annulaires présents à travers un système de dérivation en contournant les parties scellées du puits.
  4. Procédé selon la revendication 3, dans lequel le système de dérivation est disposé dans l'outil (1) et en ce que les fluides d'étanchéité ou les fluides annulaires présents proviennent de l'espace annulaire autour de la section perforée (10) à travers un second ensemble d'ouvertures (13) à travers l'outil (1) et sortent d'un premier ensemble d'ouvertures (12) à un emplacement au-dessus des parties scellées du puits.
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'outil (1) comprend un élément d'obturation interne (7), lequel élément d'obturation interne (7) est adapté pour être activé.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel le fluide d'étanchéité comprend du ciment pour former une barrière.
  7. Procédé selon l'une quelconque des revendications précédentes, dans lequel les étapes sont réalisées en un seul passage dans le puits.
  8. Procédé selon l'une quelconque des revendications précédentes 1 à 6, dans lequel les étapes sont réalisées en deux ou plusieurs déplacements dans le puits.
  9. Procédé selon l'une quelconque des revendications précédentes, dans lequel le fluide de lavage et le fluide d'étanchéité sont amenés à travers une pluralité de trous radiaux (4) dans l'agencement de déplacement, et dans lequel les trous radiaux (4) sont agencés dans une relation espacée autour de la circonférence de l'outil (1).
  10. Procédé selon l'une quelconque des revendications précédentes 3 ou 5 à 9, dans lequel le procédé comprend l'étape de pressuriser des fluides annulaires présents ou des fluides d'étanchéité depuis un emplacement au-dessus des parties scellées jusqu'à un emplacement situé au-dessous des parties scellées dans le puits en conduisant les fluides à travers un premier ensemble d'ouvertures (12) au-dessus des parties scellées et en les faisant sortir d'une deuxième série d'ouvertures (13) au-dessous des parties scellées.
  11. Procédé selon l'une quelconque des revendications précédentes 4 à 10, dans lequel le procédé comprend en outre, après l'étape h), une étape i) de soulever l'outil (1) à une position au-dessus du fluide d'étanchéité dans le puits et de nettoyer l'outil (1) en pompant un fluide de lavage à travers l'outil (1) et le premier et le second ensemble d'ouvertures (12, 13).
EP14755724.3A 2013-08-21 2014-08-04 Outil de lavage et de perforation en une seule manoeuvre pour condamner et abandonner un puits Active EP3036395B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20131131A NO337076B1 (no) 2013-08-21 2013-08-21 Fremgangsmåte for plugging av en brønn ved hjelp av et kombinert perforerings- og vaskeverktøy
US13/972,419 US9334712B2 (en) 2013-08-21 2013-08-21 One trip perforating and washing tool for plugging and abandoning wells
PCT/NO2014/050136 WO2015026239A2 (fr) 2013-08-21 2014-08-04 Outil de lavage et de perforation en une seule manoeuvre pour condamner et abandonner un puits

Publications (2)

Publication Number Publication Date
EP3036395A2 EP3036395A2 (fr) 2016-06-29
EP3036395B1 true EP3036395B1 (fr) 2017-07-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14755724.3A Active EP3036395B1 (fr) 2013-08-21 2014-08-04 Outil de lavage et de perforation en une seule manoeuvre pour condamner et abandonner un puits

Country Status (4)

Country Link
EP (1) EP3036395B1 (fr)
AU (1) AU2014309518B2 (fr)
DK (1) DK3036395T3 (fr)
WO (1) WO2015026239A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11767732B2 (en) 2021-03-29 2023-09-26 Halliburton Energy Services, Inc. Systems and methods for plugging a well

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NO340959B1 (en) * 2015-06-10 2017-07-31 Hydra Systems As A method of plugging and abandoning a well
GB2568529B (en) * 2017-11-20 2021-02-24 Weatherford Uk Ltd Method and apparatus for washing an annulus
GB2582745B (en) * 2019-03-27 2021-09-29 Ardyne Holdings Ltd Improvements in or relating to well abandonment
NO346193B1 (en) * 2019-06-17 2022-04-11 Archer Oiltools As Toolstring assembly and method for releasing and removing a stuck casing
GB201918328D0 (en) * 2019-12-12 2020-01-29 Morgan Mike Downhole tool and methods
NO346617B1 (en) 2020-03-09 2022-10-31 Hydra Systems As A fluid diverter tool, system and method of diverting a fluid flow in a well
CN112627779B (zh) * 2020-12-21 2021-07-20 耐尔能源装备有限公司 一种潜油电泵防垢缓蚀装置
NO20210361A1 (en) 2021-03-19 2022-09-20 Archer Oiltools As Method of perforating, washing, cementing, and cutting and pulling a casing
NO346353B1 (en) * 2021-05-11 2022-06-20 Archer Oiltools As Toolstring and method for inner casing perforating, shattering annulus cement, and washing the first annulus in a second casing, and cementing said annulus, and a tool therefor
CN114233251A (zh) * 2021-12-28 2022-03-25 四川涪瑞威尔能源技术有限公司 一体化弃井作业技术

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US20080314591A1 (en) * 2007-06-21 2008-12-25 Hales John H Single trip well abandonment with dual permanent packers and perforating gun
NO335972B1 (no) * 2011-01-12 2015-04-07 Hydra Systems As Fremgangsmåte for kombinert rengjøring og plugging i en brønn, vaskeverktøy for retningsstyrt spyling i en brønn, samt anvendelse av vaskeverktøyet
NO335153B1 (no) * 2011-02-03 2014-10-06 Tco As Verktøy og fremgangsmåte for avstenging av en brønn

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11767732B2 (en) 2021-03-29 2023-09-26 Halliburton Energy Services, Inc. Systems and methods for plugging a well

Also Published As

Publication number Publication date
WO2015026239A3 (fr) 2015-11-19
DK3036395T3 (da) 2017-11-06
EP3036395A2 (fr) 2016-06-29
WO2015026239A2 (fr) 2015-02-26
AU2014309518B2 (en) 2018-07-19
AU2014309518A1 (en) 2016-03-03

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