NO324404B1 - Device for drawing tools for use in underground wells - Google Patents
Device for drawing tools for use in underground wells Download PDFInfo
- Publication number
- NO324404B1 NO324404B1 NO20052085A NO20052085A NO324404B1 NO 324404 B1 NO324404 B1 NO 324404B1 NO 20052085 A NO20052085 A NO 20052085A NO 20052085 A NO20052085 A NO 20052085A NO 324404 B1 NO324404 B1 NO 324404B1
- Authority
- NO
- Norway
- Prior art keywords
- drive wheels
- pulling tool
- electric
- arm
- activator
- Prior art date
Links
- 239000012190 activator Substances 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000004913 activation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/14—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for displacing a cable or cable-operated tool, e.g. for logging or perforating operations in deviated wells
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
Abstract
Trekkeverktøy til bruk i olje - og gassbrønner, spesielt egnet til inspeksjon og vedlikehold av utstyr plassert nede i horisontale brønner. Trekkeverktøyet er satt sammen av moduler (5) som skrues sammen med gjengef6rbindelser (8). Hver modul er forsynt med et drivhjul (4) forbundet med armen (7) slik at det kan presses mot brønnveggen ved hjelp av en roterende elektrisk aktivator (13) og gearforbindelsene (12), (11) og (20)- Rotasjon av drivhjulene (4) tilveiebringes av en elektromotor bestående av permanentmagneter (17) og en elektrisk spole (18). Hastighet og kraft styres av frekvens og spenning på stramtilførselen gjennom kabelen (2). Tilbaketrekking av trekkverktøyet etter utført oppdrag gjøre med Winchen (1).Drawing tools for use in oil and gas wells, especially suitable for inspection and maintenance of equipment located in horizontal wells. The pulling tool is composed of modules (5) which are screwed together with threaded connections (8). Each module is provided with a drive wheel (4) connected to the arm (7) so that it can be pressed against the well wall by means of a rotary electric activator (13) and the gear connections (12), (11) and (20) - Rotation of the drive wheels (4) is provided by an electric motor consisting of permanent magnets (17) and an electric coil (18). Speed and power are controlled by the frequency and voltage of the power supply through the cable (2). Withdrawal of the pulling tool after completion of the task with Winchen (1).
Description
Denne oppfinnelsen et vedrører trekkeverktøy bruk i undergrunnsbrønner. This invention relates to pulling tools for use in underground wells.
I forbindelse med vedlikehold og inspeksjon i lange horisontale brønner, er det nødvendig å benytte et trekkeverktøy for å komme tilstrekkelig langt inn i brønnen med vedlikeholdsverktøy for å utføre nødvendige vedlikeholdsoperasjoner. In connection with maintenance and inspection in long horizontal wells, it is necessary to use a pulling tool to get sufficiently far into the well with maintenance tools to carry out the necessary maintenance operations.
Olje-, gass- og undergrunnsbrønner utstyres i dag med avansert utstyr for å optimalisere utvinningen. Dette utstyret kan for eksempel bestå av ventiler og må-leutstyr med tilhørende kommunikasjonsutstyr til overflaten. Behovet for effektivt utstyr til vedlikehold og inspeksjon øker etter hvert som mer avansert utstyr tas i bruk nede i brønnene. Oil, gas and underground wells are today equipped with advanced equipment to optimize recovery. This equipment can, for example, consist of valves and measuring equipment with associated communication equipment to the surface. The need for efficient equipment for maintenance and inspection increases as more advanced equipment is put into use down in the wells.
US 6 273 189 viser et eksempel på tidligere kjent teknikk der en brønntrak-tor omfatter elektromotorer som er anordnet i drivhjulene, idet det mellom motoren og drivhjulene er anordnet et til dels komplisert system omfattende et harmonisk gir for å øke momentet på drivhjulene. Videre anvendes et hydraulisk system omfattende sylindere for å aktivere armene som trykker drivhjulene mot borehullsveggen. US 4 085 808 omhandler et selvdrevet trekkeverktøy som kan benyttes i et borehull, hvor elektromotorens permanentmagneter er anordnet i drivhjulene. US 6 273 189 shows an example of prior art where a well tractor comprises electric motors which are arranged in the drive wheels, with a partly complicated system comprising a harmonic gear to increase the torque on the drive wheels being arranged between the motor and the drive wheels. Furthermore, a hydraulic system comprising cylinders is used to activate the arms that press the drive wheels against the borehole wall. US 4 085 808 deals with a self-propelled pulling tool that can be used in a borehole, where the electric motor's permanent magnets are arranged in the drive wheels.
I dag benyttes trekkeverktøy av forskjellig utførelse. Det mest brukte er elektro/hydrauliske anordninger der fremdriftsanordningen på trekkeverktøyet drives av hydrauliske motorer tilordnet en pumpeenhet drevet med elektrisk strøm gjennom kabel fra overflaten. Hydrauliske anordninger som skal benyttes i olje-eller gassbrønner med høyt rykk og høye temperaturer, blir kompliserte tekniske innretninger. For å motstå høye trykk, må hydraulikkanlegget trykkompenseres, og det stilles ekstreme krav til tetninger. Virkningsgraden på små hydrauliske innretninger er svært lav. Med begrenset effekttilførsel gjennom lange tilførselsled-ninger, blir trekkraften på trekkeverktøyet svært begrenset. Hydrauliske motorer i små dimensjoner blir også svært dyre å produsere og vedlikeholde. Pulling tools of various designs are used today. The most commonly used are electro/hydraulic devices where the propulsion device on the pulling tool is driven by hydraulic motors assigned to a pump unit powered by electric current through cable from the surface. Hydraulic devices to be used in oil or gas wells with high thrust and high temperatures become complicated technical devices. To withstand high pressures, the hydraulic system must be pressure compensated, and extreme demands are placed on seals. The efficiency of small hydraulic devices is very low. With limited power supply through long supply lines, the pulling force on the pulling tool is very limited. Hydraulic motors in small dimensions are also very expensive to manufacture and maintain.
Markedet etterspør i dag mer effektive og billigere løsninger slik at brønn-vedlikehold kan optimaliseres ved at flere vedlikeholdsoperasjoner kan utføres med trekkeverktøy uten bruk av tyngre og svært kostbart utstyr. The market today demands more efficient and cheaper solutions so that well maintenance can be optimized by allowing more maintenance operations to be carried out with pulling tools without the use of heavier and very expensive equipment.
Med foreliggende oppfinnelse har en kommet frem til en løsning der trekke-verktøyet drives elektrisk, uten bruk av hydraulikk. Oppfinnelsen er særpreget ved de trekk som er angitt i det selvstendige krav 1. With the present invention, a solution has been arrived at where the pulling tool is operated electrically, without the use of hydraulics. The invention is characterized by the features specified in independent claim 1.
Oppfinnelsen skal nå forklares nærmere med henvisning til et utførelses-eksempel og med henvisning til figurene. The invention will now be explained in more detail with reference to an embodiment example and with reference to the figures.
Fig. 1 viser prinsipp med trekkeverktøy plassert i en brønn. Fig. 1 shows the principle with a pulling tool placed in a well.
Fig. 2 viser modul med innlagt snitt. Fig. 2 shows a module with an inserted section.
Fig. 3 viser detalj av hjul med motor og opplagringer. Fig. 3 shows a detail of the wheel with motor and bearings.
Ifølge foreliggende oppfinnelse bygges elektromotorer inn i drivhjul 4 på trekkeverktøyet, idet drivhjulenes hastighet kontrolleres ved hjelp av en frekvens-omformer som styrer frekvensen til strømmen til motoren. Hjulene 4 med innbygget elektromotor presses mot borehullsveggen 3 ved hjelp av en elektrisk aktive-ringsenhet med justerbar styrke. Når strømmen slås av, trekkes drivhjulene tilbake ved hjelp av en fjærmekanisme slik at trekkeverktøyet kan trekkes tilbake og ut av brønnen. Hele trekkeverktøyet omfatter fortrinnsvis selvstendige moduler 5 som settes sammen i det antallet som er nødvendig for å nå et bestemt formål. According to the present invention, electric motors are built into drive wheels 4 on the pulling tool, the speed of the drive wheels being controlled by means of a frequency converter which controls the frequency of the current to the motor. The wheels 4 with built-in electric motor are pressed against the borehole wall 3 by means of an electric activation unit with adjustable strength. When the power is turned off, the drive wheels are pulled back by means of a spring mechanism so that the pulling tool can be pulled back and out of the well. The entire pulling tool preferably comprises independent modules 5 which are put together in the number necessary to achieve a specific purpose.
Fra en vinsj 1 plassert på overflaten, går strøm- og signalkabel 2 ned til en kontrollenhet 6 som er forbundet med modulene 5. Trekkeverktøyet settes sammen av enkeltmodulene 5 gjennom skrueforbindelser 8. Elektriske kabler føres i slissen 9 mellom modulene. Drivhjulene 4 med innbygget elektrisk motor blir presset mot brønnveggen 3 ved hjelp av armer 7 som aktiveres elektrisk. Aktive-ringen utføres ved hjelp av en elektrisk aktivator 13 som via vinkelgir 12 og girhju-lene 11 er forbundet med fortanningen 20 på armene 7. En rotasjon av aktivatoren 13 vil frembringe en bevegelse av armen 7 og derved forskyve drivhjulene 4 radielt ut fra spalten 10. Når strømmen slås av, trekkes hjulene 4 og armene 7 tilbake og inn i slissen 10 ved hjelp av en fjær 15. Armene 7 er rotasjonsfritt opplagret om bolten 14. From a winch 1 placed on the surface, power and signal cable 2 goes down to a control unit 6 which is connected to the modules 5. The pulling tool is assembled from the individual modules 5 through screw connections 8. Electric cables are led in the slot 9 between the modules. The drive wheels 4 with built-in electric motor are pressed against the well wall 3 by means of arms 7 which are activated electrically. The activation is carried out by means of an electric activator 13 which is connected via bevel gear 12 and the gear wheels 11 to the toothing 20 on the arms 7. A rotation of the activator 13 will produce a movement of the arm 7 and thereby displace the drive wheels 4 radially out of the slot 10. When the power is switched off, the wheels 4 and the arms 7 are pulled back and into the slot 10 by means of a spring 15. The arms 7 are supported non-rotationally on the bolt 14.
Drivhjulene 4 består av to halvdeler som er opplagret i kulelager 16 plassert på hver side av armen 7. Bolten 19 holder de to hjulhalvdelene sammen. Rota-sjonen tilveiebringes av en permanentmagnetmotor bestående av permanentmagneter 17 og en spole 18. Magnetiske krefter mellom spolene 18 og perma-nentmagnetene 17 setter opp moment som driver hjulene. Hastighet og kraft styres av frekvens og spenning som tilføres spolen 18. Tilbaketrekking av trekke-verktøyet etter bruk foretas med vinsjen 1. The drive wheels 4 consist of two halves which are stored in ball bearings 16 located on either side of the arm 7. The bolt 19 holds the two wheel halves together. The rotation is provided by a permanent magnet motor consisting of permanent magnets 17 and a coil 18. Magnetic forces between the coils 18 and the permanent magnets 17 set up torque that drives the wheels. Speed and power are controlled by the frequency and voltage supplied to the coil 18. Retraction of the pulling tool after use is done with the winch 1.
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20052085A NO324404B1 (en) | 2005-04-28 | 2005-04-28 | Device for drawing tools for use in underground wells |
PCT/NO2006/000159 WO2006115418A1 (en) | 2005-04-28 | 2006-04-28 | Pulling tool for use in oil and gas wells |
EP06733124.9A EP1880077A4 (en) | 2005-04-28 | 2006-04-28 | Pulling tool for use in oil and gas wells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20052085A NO324404B1 (en) | 2005-04-28 | 2005-04-28 | Device for drawing tools for use in underground wells |
Publications (3)
Publication Number | Publication Date |
---|---|
NO20052085D0 NO20052085D0 (en) | 2005-04-28 |
NO20052085L NO20052085L (en) | 2006-10-30 |
NO324404B1 true NO324404B1 (en) | 2007-10-08 |
Family
ID=35276295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20052085A NO324404B1 (en) | 2005-04-28 | 2005-04-28 | Device for drawing tools for use in underground wells |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1880077A4 (en) |
NO (1) | NO324404B1 (en) |
WO (1) | WO2006115418A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2106493A4 (en) * | 2007-01-23 | 2014-06-18 | Wellbore Solutions As | Device for transport of tools in wellbores and pipelines |
NO326592B1 (en) * | 2007-03-13 | 2009-01-19 | Aker Well Service As | Wireline tractor with displaceable wheel adjustment mechanism |
NO333749B1 (en) * | 2007-08-08 | 2013-09-09 | Wellbore Solutions As | Coupling unit for converting mechanical torque to hydraulic fluid pressure in a drill bit for use in boreholes |
DK2505769T3 (en) | 2011-03-30 | 2014-01-20 | Welltec As | Service Panel |
EP2505770A1 (en) * | 2011-03-30 | 2012-10-03 | Welltec A/S | Torque member |
DK2505772T3 (en) | 2011-03-30 | 2013-08-05 | Welltec As | Hydraulic device |
EP2505767A1 (en) * | 2011-03-30 | 2012-10-03 | Welltec A/S | Fail-safe spring |
EP2505771A1 (en) * | 2011-03-30 | 2012-10-03 | Welltec A/S | Arm assembly |
EP2505768B1 (en) * | 2011-03-30 | 2016-03-30 | Welltec A/S | Modular downhole tool |
GB201316354D0 (en) * | 2013-09-13 | 2013-10-30 | Maersk Olie & Gas | Transport device |
NO336694B1 (en) * | 2014-01-24 | 2015-10-19 | Altus Intervention As | Cable tractor comprising a disc-shaped cutting device for perforating a production pipe wall and method for perforating a production pipe wall |
NO344461B1 (en) | 2017-07-06 | 2019-12-23 | Well Conveyor As | Pulling tool used in a borehole and / or pipeline and a drive module for a pulling tool |
CA3078462A1 (en) * | 2017-10-05 | 2019-04-25 | Petroleo Brasileiro S. A. - Petrobras | Device for centring and/or pulling a tool in a pipeline |
NO345947B1 (en) * | 2020-06-03 | 2021-11-08 | Well Innovation As | Pulling tool |
CN111991579B (en) * | 2020-08-26 | 2022-01-11 | 刘海燕 | A disinfection belt cleaning device for medical treatment gynaecology and obstetrics's disk household utensils |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4085808A (en) * | 1976-02-03 | 1978-04-25 | Miguel Kling | Self-driving and self-locking device for traversing channels and elongated structures |
US6273189B1 (en) * | 1999-02-05 | 2001-08-14 | Halliburton Energy Services, Inc. | Downhole tractor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1014182C2 (en) * | 2000-01-26 | 2001-07-27 | Special Products For Industry | Wheel provided with drive means. |
-
2005
- 2005-04-28 NO NO20052085A patent/NO324404B1/en not_active IP Right Cessation
-
2006
- 2006-04-28 WO PCT/NO2006/000159 patent/WO2006115418A1/en active Application Filing
- 2006-04-28 EP EP06733124.9A patent/EP1880077A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4085808A (en) * | 1976-02-03 | 1978-04-25 | Miguel Kling | Self-driving and self-locking device for traversing channels and elongated structures |
US6273189B1 (en) * | 1999-02-05 | 2001-08-14 | Halliburton Energy Services, Inc. | Downhole tractor |
Also Published As
Publication number | Publication date |
---|---|
NO20052085L (en) | 2006-10-30 |
EP1880077A1 (en) | 2008-01-23 |
EP1880077A4 (en) | 2015-04-01 |
WO2006115418A1 (en) | 2006-11-02 |
NO20052085D0 (en) | 2005-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CREP | Change of representative |
Representative=s name: BRYN AARFLOT AS POSTBOKS 449 SENTRUM OSLO, 0104 NO |
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CREP | Change of representative |
Representative=s name: BRYN AARFLOT AS, POSTBOKS 449 SENTRUM, 0104 OSLO, |
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CREP | Change of representative |
Representative=s name: FLUGES PATENT AS, POSTBOKS 27, 1629 GAMLE |
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CHAD | Change of the owner's name or address (par. 44 patent law, par. patentforskriften) |
Owner name: C6 TECHNOLOGIES AS, NO |
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CREP | Change of representative |
Representative=s name: ZACCO NORWAY AS, POSTBOKS 2003 VIKA, 0125 OSLO |
|
MM1K | Lapsed by not paying the annual fees |