NO334845B1 - Method and apparatus for cleaning the upper portion of a well - Google Patents

Method and apparatus for cleaning the upper portion of a well Download PDF

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Publication number
NO334845B1
NO334845B1 NO20110656A NO20110656A NO334845B1 NO 334845 B1 NO334845 B1 NO 334845B1 NO 20110656 A NO20110656 A NO 20110656A NO 20110656 A NO20110656 A NO 20110656A NO 334845 B1 NO334845 B1 NO 334845B1
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NO
Norway
Prior art keywords
well
tool
cleaning head
wireline
motor
Prior art date
Application number
NO20110656A
Other languages
Norwegian (no)
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NO20110656A1 (en
Inventor
Espen Osaland
Original Assignee
Aker Well Service 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 Aker Well Service As filed Critical Aker Well Service As
Priority to NO20110656A priority Critical patent/NO334845B1/en
Priority to PCT/NO2012/050069 priority patent/WO2012150864A1/en
Priority to GB1318708.3A priority patent/GB2504870B/en
Publication of NO20110656A1 publication Critical patent/NO20110656A1/en
Priority to DK201300599A priority patent/DK178294B1/en
Publication of NO334845B1 publication Critical patent/NO334845B1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B37/00Methods or apparatus for cleaning boreholes or wells
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/04Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/18Anchoring or feeding in the borehole

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Cleaning In General (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

Fremgangsmåte for å rense en brønns (4) øvre parti for avleiringer (2) hvor et verktøy (1) med et roterbart rensehode (10) er koplet til en wireline (14) og forskyves inn i brønnen (4), og hvor fremgangsmåten omfatter: - å forsyne et rulleanker (6) med en motor (8) for drift av det roterende rensehodet (10); - å kople det roterende rensehodet (10) til motoren (8); og - å la verktøyets (1) egenvekt forskyve verktøyet (1) inn i brønnen (4).A method of cleaning the upper portion of a well (4) of deposits (2), wherein a tool (1) with a rotatable cleaning head (10) is connected to a wireline (14) and displaced into the well (4), and wherein the method comprises : - providing a roller anchor (6) with a motor (8) for operating the rotary cleaning head (10); - connecting the rotary cleaning head (10) to the motor (8); and - allowing the unladen weight of the tool (1) to displace the tool (1) into the well (4).

Description

FREMGANGSMÅTE OG ANORDNING FOR Å RENSE EN BRØNNS ØVRE PARTI METHOD AND DEVICE FOR CLEANING THE UPPER PART OF A WELL

Denne oppfinnelse vedrører en fremgangsmåte for å rense en brønns øvre parti. Nærmere bestemt dreier det seg om en fremgangsmåte for å rense en brønns øvre parti for avleiringer hvor et verktøy med roterbart rensehode er koplet til en wireline og forskyves inn i brønnen. Oppfinnelsen omfatter også en anordning for utøvelse av fremgangsmåten. This invention relates to a method for cleaning the upper part of a well. More specifically, it concerns a method for cleaning the upper part of a well for deposits where a tool with a rotatable cleaning head is connected to a wireline and is moved into the well. The invention also includes a device for carrying out the method.

Avleiringer i rør og brønner i forbindelse med petroleumsutvinning kan medføre betydelige produksjons- og funksjonsmessige hindringer. Deposits in pipes and wells in connection with petroleum extraction can cause significant production and functional obstacles.

Avleiringer har en tendens til særlig å dannes ved strømningsmessige innsnevringer og i en brønns øvre parti. Det er således et kjent problem at avleiringer for eksempel i en nedihulls sikkerhetsventil kan hindre en slik ventil fra å kunne opereres som øns-ket. Deposits tend to form in particular at flow-related narrowings and in the upper part of a well. It is thus a known problem that deposits, for example, in a downhole safety valve can prevent such a valve from being able to operate as desired.

Det er kjent å anvende roterende verktøy på en såkalt wirelinetraktor til å løsgjøre avleiringer i rør og annet utstyr. Patentskrift WO 2010/053374 viser et slikt roterende verktøy koblet til en wirelinetraktor. Utstyr av denne art har den betydelige svakhet at en del av den tilgjengelige elektriske effekt som kan tilføres via en relativt lang og tynn wire, forbrukes til drift av wirelinetraktoren. Det blir derved relativt lite effekt igjen til å drive det roterbare rensehodet. It is known to use rotating tools on a so-called wireline tractor to loosen deposits in pipes and other equipment. Patent document WO 2010/053374 shows such a rotating tool connected to a wireline tractor. Equipment of this kind has the significant weakness that part of the available electrical power that can be supplied via a relatively long and thin wire is consumed to operate the wireline tractor. There is thus relatively little power left to drive the rotatable cleaning head.

Patentskrift US 2005/217867 viser en traktor på enden av et kveilrør. Traktoren er forsynt med et verktøy for utspyling av materiale foran traktorens frie ende, og mate-rialet deponeres i brønnen bak traktoren. Patent document US 2005/217867 shows a tractor on the end of a coiled pipe. The tractor is equipped with a tool for flushing out material in front of the tractor's free end, and the material is deposited in the well behind the tractor.

Oppfinnelsen har til formål å avhjelpe eller redusere i det minste én av ulempene ved kjent teknikk. The purpose of the invention is to remedy or reduce at least one of the disadvantages of known technology.

Formålet oppnås i henhold til oppfinnelsen ved de trekk som er angitt i nedenstående beskrivelse og i de etterfølgende patentkrav. The purpose is achieved according to the invention by the features indicated in the description below and in the subsequent patent claims.

Det er tilveiebrakt en fremgangsmåte for å rense en brønns øvre parti for avleiringer hvor et verktøy med et roterbart rensehode er koplet til en wireline og forskyves inn i brønnen og hvor fremgangsmåten kjennetegnes ved at den omfatter: - å forsyne et rulleanker med en motor for drift av det roterbare rensehodet; - å kople det roterbare rensehodet til motoren; A method has been provided for cleaning the upper part of a well for deposits where a tool with a rotatable cleaning head is connected to a wireline and is moved into the well and where the method is characterized by the fact that it includes: - supplying a rolling anchor with a motor for operation of the rotatable cleaning head; - to connect the rotatable cleaning head to the motor;

- å la verktøyet av sin egen vekt forskyves inn i brønnen. - to allow the tool to be displaced by its own weight into the well.

Ved å sløyfe wirelinetraktoren og basere seg på at verktøyet forskyves inn i brønnen ved hjelp av sin egen vekt, kan tilnærmet hele effekten som kan tilføres via wirelinen anvendes til å drive det roterbare rensehodet. By looping the wireline tractor and relying on the tool being moved into the well using its own weight, almost the entire power that can be supplied via the wireline can be used to drive the rotatable cleaning head.

En annen fordel er at det ikke behøves å beregnes så lang wireline som det er vanlig å anvende når en baserer seg på anvendelse av en wirelinetraktor. Derved kan en wireline med grovere tverrsnitt anvendes, noe som muliggjør overføring av større elektrisk effekt. Another advantage is that there is no need to calculate as long a wireline as is usually used when one relies on the use of a wireline tractor. Thereby, a wireline with a coarser cross-section can be used, which enables the transmission of greater electrical power.

Fremgangsmåten kan omfatte å forsyne rulleankeret med et hydraulisk aggregat for å kunne forskyve rulleankerets hjul mot brønnen. En pumpe i det hydrauliske aggregatet kan med fordel være koplet til motoren slik at hjulene i rulleankeret presses mot brønnveggen når motoren startes for å drive det roterbare verktøy. The procedure may include supplying the roller anchor with a hydraulic unit to be able to move the roller anchor's wheel towards the well. A pump in the hydraulic unit can advantageously be connected to the motor so that the wheels in the roller anchor are pressed against the well wall when the motor is started to drive the rotatable tool.

Styringen fra overflaten begrenser seg derved til enkel start og stopp av verktøyet, samt ut- og innmating av wireline i brønnen. Control from the surface is thereby limited to simple starting and stopping of the tool, as well as feeding and feeding the wireline into the well.

Fremgangsmåten kan utøves ved hjelp av et renseutstyr for å rense en brønns øvre parti for avleiringer hvor et verktøy med et roterbart rensehode er koplet til en wireline og er forskyvbart ved egen vekt inn i brønnen, og hvor verktøyet omfatter et rulleanker med en drivmotor for det roterbare rensehodet, samt et hydraulisk aggregat for aktivering av rulleankerets hjul mot brønnen. The method can be carried out using a cleaning equipment to clean the upper part of a well for deposits, where a tool with a rotatable cleaning head is connected to a wireline and is displaceable by its own weight into the well, and where the tool comprises a roller anchor with a drive motor for it rotatable cleaning head, as well as a hydraulic unit for activating the rolling anchor's wheel towards the well.

Wirelinen kan være koplet til rulleankeret ved hjelp av et kabelhode og en svivel. The wireline can be connected to the roller anchor by means of a cable head and a swivel.

Det hydrauliske aggregatet kan være drevet av motoren og være forsynt med en akkumulator. The hydraulic unit can be driven by the engine and be equipped with an accumulator.

Det roterende verktøyet kan utgjøres av en borekrone. Det har vist seg at en borekrone er vesentlig mer effektiv til å fjerne avleiringer enn tradisjonelle rulleskjær som er innrettet til å rulle mot avleiringene. Dette er særlig tilfellet når større elektrisk effekt enn det som er vanlig ved anvendelse av wirelinetraktorer er tilgjengelig. Fremgangsmåten og anordningen i henhold til oppfinnelsen muliggjør en betydelig effektivisering av avleiringsfjerning i forhold til kjent teknikk. The rotating tool can be made up of a drill bit. It has been shown that a drill bit is significantly more effective at removing deposits than traditional roller bits that are designed to roll against the deposits. This is particularly the case when greater electrical power than is usual when using wireline tractors is available. The method and device according to the invention enables a significant streamlining of scale removal compared to known technology.

I det etterfølgende beskrives et eksempel på en foretrukket fremgangsmåte og utfø-relsesform som er anskueliggjort på medfølgende tegning, hvor: In what follows, an example of a preferred method and embodiment is described, which is illustrated in the accompanying drawing, where:

Fig. 1 viser et verktøy i henhold til oppfinnelsen. Fig. 1 shows a tool according to the invention.

På tegningen betegner henvisningstallet 1 et verktøy for rensing av avleiringer 2 fra en brønns 4 øvre parti. In the drawing, the reference number 1 denotes a tool for cleaning deposits 2 from the upper part of a well 4.

Verktøyet 1 omfatter et rulleanker 6 som er forsynt med en motor 8 for drift av et roterbart rensehode 10, fortrinnsvis i form av en borekrone. Det roterbare rensehodet 10 er opplagret i en lagerenhet 12. The tool 1 comprises a roller anchor 6 which is provided with a motor 8 for operating a rotatable cleaning head 10, preferably in the form of a drill bit. The rotatable cleaning head 10 is stored in a storage unit 12.

Rulleankeret 6 er koplet til en wireline 14 ved hjelp av et kabelhode 16 og svivel 18 av i og for seg kjent utførelse. The rolling anchor 6 is connected to a wireline 14 by means of a cable head 16 and swivel 18 of a design known per se.

Rulleankeret 6 er videre forsynt med et hydraulikkaggregat 20 som er innrettet til å kunne forskyve rulleankerets 6 hjul 22 ut mot brønnen 4. Hydraulikkaggregatets 20 ikke viste pumpe er drevet av motoren 8. The roller anchor 6 is also provided with a hydraulic unit 20 which is arranged to be able to move the roller anchor 6's wheel 22 out towards the well 4. The pump of the hydraulic unit 20, not shown, is driven by the motor 8.

Verktøyet 1 forskyves inn i brønnen 4 ved hjelp av sin egen vekt ved å mate ut wireline 14. Når renseoperasjonen skal startes, koples spenning til wirelinen 14 hvorved motoren 8 starter, og det roterbare rensehodet 10 bringes til å dreie relativt rulleankeret 6. The tool 1 is moved into the well 4 by means of its own weight by feeding out the wireline 14. When the cleaning operation is to be started, voltage is connected to the wireline 14 whereby the motor 8 starts, and the rotatable cleaning head 10 is brought to rotate relative to the roller anchor 6.

Motoren 8 driver samtidig hydraulikkaggregatets 20 ikke viste pumpe som bevirker at hjulene 22 forskyves mot brønnen 4 og forhindrer rulleankeret 6 fra å dreie i brønnen 4. The motor 8 simultaneously drives the pump of the hydraulic unit 20, not shown, which causes the wheels 22 to be displaced towards the well 4 and prevents the roller anchor 6 from turning in the well 4.

Et rulleanker 6 av denne art er i stand til å oppta et betydelig dreiemoment samtidig A roller anchor 6 of this kind is able to absorb a significant torque at the same time

som det lett kan rulles fram og tilbake i brønnen 4. Det er således mulig å styre mate-hastighet i forhold til målt effektforbruk som i all hovedsak går til drift av det roterbare rensehodet 10. Derved oppnås en effektiv rensning samtidig som faren for fastkjøring er betydelig redusert. which can easily be rolled back and forth in the well 4. It is thus possible to control the feed speed in relation to the measured power consumption, which mainly goes to the operation of the rotatable cleaning head 10. In this way, an effective cleaning is achieved while the danger of jamming is reduced significantly reduced.

Claims (7)

1. Fremgangsmåte for å rense en brønns (4) øvre parti for avleiringer (2) hvor et verktøy (1) med et roterbart rensehode (10) er koplet til en wireline (14) og forskyves inn i brønnen (4),karakterisert vedat fremgangsmåten omfatter: - å forsyne et rulleanker (6) med en motor (8) for drift av det roterende rensehodet (10); - å kople det roterende rensehodet (10) til motoren (8); og - å la verktøyets (1) egen vekt forskyve verktøyet (1) inn i brønnen (4).1. Method for cleaning the upper part of a well (4) for deposits (2), where a tool (1) with a rotatable cleaning head (10) is connected to a wireline (14) and is moved into the well (4), characterized in that the method comprises: - supplying a rolling armature (6) with a motor (8) for operating the rotating cleaning head (10); - to connect the rotating cleaning head (10) to the motor (8); and - allowing the tool (1)'s own weight to displace the tool (1) into the well (4). 2. Fremgangsmåte i henhold til krav 1,karakterisert vedat fremgangsmåten omfatter å forsyne rulleankeret (6) med et hydraulisk aggregat (20) for å kunne forskyve rulleankerets (6) hjul (22) mot brønnen (4).2. Method according to claim 1, characterized in that the method includes supplying the rolling anchor (6) with a hydraulic unit (20) in order to be able to move the rolling anchor's (6) wheel (22) towards the well (4). 3. Anordning ved renseutstyr for å rense en brønns (4) øvre parti for avleiringer (2) hvor et verktøy (1) med et roterbart rensehode (10) er koplet til en wireline (14) og er forskyvbart ved egen vekt inn i brønnen (4),karakterisertved at verktøyet (1) omfatter et rulleanker (6) med en drivmotor (8) for det roterbare rensehodet (10), samt et hydraulisk aggregat (20) for aktivering av rulleankerets (6) hjul (22) mot brønnen (4).3. Device for cleaning equipment to clean the upper part of a well (4) of deposits (2), where a tool (1) with a rotatable cleaning head (10) is connected to a wireline (14) and can be moved by its own weight into the well (4), characterized in that the tool (1) comprises a rolling anchor (6) with a drive motor (8) for the rotatable cleaning head (10), as well as a hydraulic unit (20) for activating the rolling anchor's (6) wheel (22) towards the well (4). 4. Anordning i henhold til krav 3,karakterisert vedat wirelinen (14) er koplet til rulleankeret (6) ved hjelp av et kabelhode (16) og en svivel (18).4. Device according to claim 3, characterized in that the wireline (14) is connected to the rolling anchor (6) by means of a cable head (16) and a swivel (18). 5. Anordning i henhold til krav 3,karakterisert vedat det hydrauliske aggregatet (20) er drevet av motoren (8).5. Device according to claim 3, characterized in that the hydraulic unit (20) is driven by the motor (8). 6. Anordning i henhold til krav 3,karakterisert vedat det hydrauliske aggregatet (20) er forsynt med en akkumulator.6. Device according to claim 3, characterized in that the hydraulic unit (20) is provided with an accumulator. 7. Anordning i henhold til krav 3,karakterisert vedat det roterbare rensehodet (10) utgjøres av en borekrone.7. Device according to claim 3, characterized in that the rotatable cleaning head (10) consists of a drill bit.
NO20110656A 2011-05-04 2011-05-04 Method and apparatus for cleaning the upper portion of a well NO334845B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NO20110656A NO334845B1 (en) 2011-05-04 2011-05-04 Method and apparatus for cleaning the upper portion of a well
PCT/NO2012/050069 WO2012150864A1 (en) 2011-05-04 2012-04-19 Method and device for cleaning the upper portion of a well
GB1318708.3A GB2504870B (en) 2011-05-04 2012-04-19 Method and device for cleaning the upper portion of a well
DK201300599A DK178294B1 (en) 2011-05-04 2013-10-23 Method and device for cleaning the upper portion of a well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20110656A NO334845B1 (en) 2011-05-04 2011-05-04 Method and apparatus for cleaning the upper portion of a well

Publications (2)

Publication Number Publication Date
NO20110656A1 NO20110656A1 (en) 2012-11-05
NO334845B1 true NO334845B1 (en) 2014-06-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
NO20110656A NO334845B1 (en) 2011-05-04 2011-05-04 Method and apparatus for cleaning the upper portion of a well

Country Status (4)

Country Link
DK (1) DK178294B1 (en)
GB (1) GB2504870B (en)
NO (1) NO334845B1 (en)
WO (1) WO2012150864A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800006806A1 (en) * 2018-06-29 2019-12-29 APPARATUS AND METHOD FOR THE INTERNAL CLEANING OF A PIPE
RU2733865C1 (en) * 2020-06-10 2020-10-07 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Method and device for well shaft cleaning from plugs
US12064796B2 (en) * 2022-11-10 2024-08-20 Saudi Arabian Oil Company Pipeline descaling tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO311100B1 (en) * 1999-10-26 2001-10-08 Bakke Technology As Apparatus for use in feeding a rotary downhole tool and using the apparatus
US7273108B2 (en) * 2004-04-01 2007-09-25 Bj Services Company Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore
JP4735994B2 (en) * 2008-08-27 2011-07-27 ソニー株式会社 Imaging apparatus and method, program, and recording medium
NO335492B1 (en) * 2008-11-04 2014-12-22 Altus Intervention As Method and apparatus for cleaning a tubular body in the ground
NO330959B1 (en) * 2009-04-22 2011-08-29 Aker Well Service As Device by strokes

Also Published As

Publication number Publication date
NO20110656A1 (en) 2012-11-05
DK178294B1 (en) 2015-11-09
GB201318708D0 (en) 2013-12-04
GB2504870B (en) 2018-05-16
DK201300599A (en) 2013-10-23
WO2012150864A1 (en) 2012-11-08
GB2504870A (en) 2014-02-12

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Owner name: ALTUS INTERVENTION AS, NO