EP3036395B1 - Ein-schritt-perforations- und waschwerkzeug zum verschliessen und verlassen von bohrlöchern - Google Patents
Ein-schritt-perforations- und waschwerkzeug zum verschliessen und verlassen von bohrlöchern Download PDFInfo
- 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
Links
- 238000005406 washing Methods 0.000 title claims description 24
- 239000012530 fluid Substances 0.000 claims description 82
- 238000007789 sealing Methods 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 42
- 239000004568 cement Substances 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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
- 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)
- Devices For Opening Bottles Or Cans (AREA)
- Drilling And Boring (AREA)
Claims (11)
- Verfahren zur Durchführung eines Verstopfung- und Aufgabevorgangs bei einem Bohrloch unter Verwendung eines kombinierten Perforations- und Waschwerkzeugs (1), wobei das Werkzeug (1) ein Perforationswerkzeug (18) an einem unteren Ende, wenigstens einen unteren Satz einer Dichtungsanordnung (2), die unterhalb einer Fluidverdrängungsanordnung umfassend eine Vielzahl von radialen Löchern (4) angeordnet ist, und wenigstens einen oberen Satz einer Dichtungsanordnung (3), der oberhalb der radialen Löcher (4) angeordnet ist, umfasst, wobei das Verfahren die Schritte umfasst:a) Absenken des Werkzeugs (1) an die gewünschte Stelle im Bohrloch,b) Perforieren mindestens einen Abschnitts der Verschalung im Bohrloch, sofern der Abschnitt noch nicht perforiert ist,c) Waschen eines Ringraums um den perforierten Abschnitt (10) durch Pumpen von Wasch- und/oder Reinigungsfluid durch die radialen Löcher (4) in der Verdrängungsanordnung,wobei das Verfahren dadurch gekennzeichnet ist, dass es ferner die folgenden Schritte umfasst:d) Abdichten eines unteren Teils des Bohrlochs an einer Stelle unterhalb des perforierten Abschnitts (10) durch die Verwendung des mindestens einen unteren Satzes der Dichtungsanordnung (2),e) Abdichten des Bohrlochs in einem unteren Teil des perforierten Abschnitts (10) unter Verwendung des oberen Satzes der Dichtungsanordnung (3),f) Pumpen von Dichtungsfluid durch die radialen Löcher (4) der Verdrängungsanordnung,g) Anheben des Werkzeugs (1) durch und über den perforierten Abschnitt (10), während das Pumpen des Dichtungsfluids fortgesetzt wird.
- Verfahren nach Anspruch 1, wobei das Verfahren nach Schritt c), aber vor Schritt d) weiter umfasst, das Werkzeug (1) mehrmals aus dem perforierten Abschnitt (10) gezogen und wieder abgesenkt wird, zum Durchführen eines zusätzlichen Waschens des perforierten Abschnitt (10).
- Verfahren nach einem der vorhergehenden Ansprüche, wobei das Verfahren ferner nach Schritt g) einen Schritt h) umfasst, in dem überschüssiges Dichtungsfluid oder im Ringraum vorhandene Fluide durch ein Bypass-System, welches die Dichtungsabschnitte des Bohrlochs umgeht, umgeleitet werden.
- Verfahren nach Anspruch 3, wobei das Bypass-System in dem Werkzeug (1) angeordnet ist und wobei Dichtungsfluide oder im Ringraum vorhandene Fluide aus dem Ringraum um den perforierten Abschnitt (10) über einen zweiten Satz von Öffnungen (13) durch das Werkzeug (1) und aus einem ersten Satz von Öffnungen (12) zu einer Stelle oberhalb der versiegelten Abschnitte des Bohrlochs geführt werden.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Werkzeug (1) ein internes Verschlusselement (7) umfasst, wobei das interne Verschlusselement (7) aktivierbar ist.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Dichtungsfluid Zement zur Bildung einer Sperre umfasst.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei die Schritte in einer einzigen Fahrt in die Bohrung durchgeführt werden.
- Verfahren nach einem der vorhergehenden Ansprüche 1 bis 6, wobei die Schritte in zwei oder mehr Fahrten in die Bohrung durchgeführt werden.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei das Waschfluid und das Dichtfluid durch eine Vielzahl von radialen Löchern (4) in der Verdrängungsanordnung geleitet werden und wobei die radialen Löcher (4) jeweils in einem Abstand um einen Umfang des Werkzeugs (1) angeordnet sind.
- Verfahren nach einem der vorhergehenden Ansprüche 3 oder 5 bis 9, wobei das Verfahren den Schritt des Ausdrücken im Ringraum vorhandener Fluide oder Dichtungsfluide von einer Stelle oberhalb der versiegelten Abschnitte zu einer Stelle unterhalb der versiegelten Abschnitte in dem Bohrloch umfasst, indem die Fluide durch einen ersten Satz von Öffnungen (12) oberhalb der abgedichteten Abschnitte und aus einem zweiten Satz von Öffnungen (13) unterhalb der abgedichteten Abschnitte geleitet werden.
- Verfahren nach einem der vorhergehenden Ansprüche 4 bis 10, wobei das Verfahren nach Schritt h) einen Schritt i) umfasst, in dem des Werkzeugs (1) in eine Position oberhalb des Dichtungsfluids in dem Bohrloch gehoben und das Werkzeug (1) durch Pumpen eines Waschfluids durch das Werkzeug (1) und einen ersten und einen zweiten Satz von Öffnungen (12, 13) gereinigt wird.
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 (en) | 2013-08-21 | 2014-08-04 | One trip perforating and washing tool for plugging and abandoning wells |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3036395A2 EP3036395A2 (de) | 2016-06-29 |
EP3036395B1 true EP3036395B1 (de) | 2017-07-19 |
Family
ID=51399753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14755724.3A Active EP3036395B1 (de) | 2013-08-21 | 2014-08-04 | Ein-schritt-perforations- und waschwerkzeug zum verschliessen und verlassen von bohrlöchern |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3036395B1 (de) |
AU (1) | AU2014309518B2 (de) |
DK (1) | DK3036395T3 (de) |
WO (1) | WO2015026239A2 (de) |
Cited By (1)
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 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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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2014
- 2014-08-04 AU AU2014309518A patent/AU2014309518B2/en active Active
- 2014-08-04 WO PCT/NO2014/050136 patent/WO2015026239A2/en active Application Filing
- 2014-08-04 EP EP14755724.3A patent/EP3036395B1/de active Active
- 2014-08-04 DK DK14755724.3T patent/DK3036395T3/da active
Non-Patent Citations (1)
Title |
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None * |
Cited By (1)
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 (en) | 2015-11-19 |
DK3036395T3 (da) | 2017-11-06 |
EP3036395A2 (de) | 2016-06-29 |
WO2015026239A2 (en) | 2015-02-26 |
AU2014309518B2 (en) | 2018-07-19 |
AU2014309518A1 (en) | 2016-03-03 |
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