NO326954B1 - Device by linear actuator for axial displacement of a tool in a borehole - Google Patents
Device by linear actuator for axial displacement of a tool in a borehole Download PDFInfo
- Publication number
- NO326954B1 NO326954B1 NO20074140A NO20074140A NO326954B1 NO 326954 B1 NO326954 B1 NO 326954B1 NO 20074140 A NO20074140 A NO 20074140A NO 20074140 A NO20074140 A NO 20074140A NO 326954 B1 NO326954 B1 NO 326954B1
- Authority
- NO
- Norway
- Prior art keywords
- spindle
- actuator
- piston
- locking
- actuator housing
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 title description 5
- 239000012530 fluid Substances 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
- E21B17/073—Telescoping joints for varying drill string lengths; Shock absorbers with axial rotation
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/0418—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for locking the tools in landing nipples or recesses
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/042—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using a single piston or multiple mechanically interconnected pistons
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Earth Drilling (AREA)
- Transmission Devices (AREA)
Abstract
Anordning ved aktuator (1) for forskyvning av et verktøy i et borehull i grunnen hvor aktuatoren (1) befinner seg mellom et kveilrør (2) og et verktøy, og hvor aktuatoren (1) er innrettet til å kunne forskyve verktøyet med en i hovedsak konstant aksial hastighet, og hvor aktuatoren (1) omfatter en motordrevet spindel (30) som forskyves utover i aktuatoren (1) ved hjelp av en utløsbar mutter (28), og hvor mutteren (28) låses i sin virksomme posisjon ved hjelp av et hydraulisk operert låsestempel (48).Device at actuator (1) for displacing a tool in a borehole in the ground where the actuator (1) is located between a coiled tubing (2) and a tool, and where the actuator (1) is arranged to be able to displace the tool with a substantially constant axial speed, and wherein the actuator (1) comprises a motor-driven spindle (30) which is displaced outwards in the actuator (1) by means of a releasable nut (28), and wherein the nut (28) is locked in its operative position by means of a hydraulically operated locking piston (48).
Description
ANORDNING VED LINEÆR AKTUATOR FOR AKSIAL FORSKYVNING AV ET VERKTØY I ET BOREHULL LINEAR ACTUATOR DEVICE FOR AXIAL DISPLACEMENT OF A TOOL IN A DRILL HOLE
Denne oppfinnelse vedrører en aktuator. Nærmere bestemt dreier det seg om aktuator for forskyvning av et verktøy i et borehull i grunnen hvor aktuatoren befinner seg mellom et kveilrør og et verktøy, og hvor aktuatoren er innrettet til å kunne forskyve verktøyet med en i hovedsak konstant, aksial hastighet. This invention relates to an actuator. More specifically, it concerns an actuator for displacing a tool in a borehole in the ground where the actuator is located between a coiled pipe and a tool, and where the actuator is arranged to be able to displace the tool with an essentially constant, axial speed.
Under arbeid i et borehull, for eksempel rensing av et rør som befinner seg i borehullet, ved hjelp av et trykkfluid-verktøy som befinner seg på et kveilrørs endeparti, er det velkjent at verktøyets fremmatingshastighet i borehullet kan være ujevn selv om kveilrøret mates inn i borehullet med jevn hastighet. During work in a borehole, for example cleaning a pipe located in the borehole, by means of a pressure fluid tool located on the end part of a coiled pipe, it is well known that the feed rate of the tool in the borehole can be uneven even though the coiled pipe is fed into the borehole at a steady speed.
Årsaken til denne ujevne fremføringshastighet kan være frik-sjon mellom kveilrøret og borehullsveggen, hindringer i borehullet eller buede borehull hvor kveilrøret endrer kurveradi-usen under innmatingen. Disse forhold kan resultere i en såkalt "stick-slip"-virkning hvor verktøyet stanser, for deretter å forskyves med en relativt høy hastighet. The reason for this uneven advance speed can be friction between the coiled pipe and the borehole wall, obstacles in the borehole or curved boreholes where the coiled pipe changes the radius of curvature during feeding. These conditions can result in a so-called "stick-slip" effect where the tool stops, and then moves at a relatively high speed.
US-dokument 2007/0251687 beskriver en hydraulisk aktuator som er innrettet til å kunne senkes ned i en brønn ved hjelp av en kabel hvor en elektronisk modul er innrettet til å kunne styre aktuatoren. US document 2007/0251687 describes a hydraulic actuator which is arranged to be able to be lowered into a well by means of a cable where an electronic module is arranged to be able to control the actuator.
US-patent 6655458 beskriver et testapparat som kan senkes ned i en brønn og hvor testapparatet er forsynt med en motorakti-vert aktuator for å kunne forskyve testapparatet. US patent 6655458 describes a test device that can be lowered into a well and where the test device is provided with a motor-activated actuator to be able to move the test device.
Anordningene i henhold til disse dokument er ikke utformet til å kunne løse de oppgaver som anordningen i henhold til oppfinnelsen er rettet mot. The devices according to these documents are not designed to be able to solve the tasks that the device according to the invention is aimed at.
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.
En aktuator i overensstemmelse med oppfinnelsen for forskyvning av et verktøy i et borehull i grunnen hvor aktuatoren befinner seg mellom et kveilrør og et verktøy, og hvor aktuatoren er innrettet til å kunne forskyve verktøyet med en i hovedsak konstant aksial hastighet, kjennetegnes ved at aktuatoren omfatter et aktuatorhus med en innvendig sylindermantel og en endegavl, hvor det ved endegavlen er anordnet en utløsbar mutter som i sin virksomme stilling er i inngrep med en gjenget, aksialt gjennomboret spindel, idet spindelen rager aksialforskyvbart ut gjennom en åpning i endegavlen, og hvor en motor er innrettet til å dreie spindelen om sin lengdeakse via en urund, aksialt gjennomboret aksling, og hvor et låsestempel som er forskyvbart i sylindermantelen, omkranser spindelen, idet låsestemplet, når det befinner seg i sin endestilling nærmest endegavlen, er innrettet til å låse mutteren i sin virksomme posisjon, og hvor en indre, gjennomgående åpning i akslingens vegg kommuniserer med et første rom i aktuatorhuset oppstrøms i forhold til låsestemplet når spindelen befinner seg i sin inntrukne stilling i aktuatorhuset, og hvor en ytre, gjennomgående åpning i spindelens vegg kommuni serer med et andre rom mellom låsestemplet og endegavlen når spindelen befinner seg i sin utskjøvne endeposisjon. An actuator in accordance with the invention for displacing a tool in a borehole in the ground where the actuator is located between a coiled pipe and a tool, and where the actuator is arranged to be able to displace the tool with an essentially constant axial speed, is characterized by the fact that the actuator comprises an actuator housing with an internal cylinder casing and an end end, where a release nut is arranged at the end end which in its active position engages with a threaded, axially pierced spindle, the spindle protruding axially displaceably through an opening in the end end, and where a motor is arranged to turn the spindle about its longitudinal axis via an unrounded, axially pierced shaft, and where a locking piston which is displaceable in the cylinder jacket surrounds the spindle, the locking piston, when it is in its end position closest to the end gable, is arranged to lock the nut in its effective position, and where an internal, continuous opening in the wall of the shaft communicates with me d a first space in the actuator housing upstream in relation to the locking piston when the spindle is in its retracted position in the actuator housing, and where an outer, continuous opening in the wall of the spindle communicates with a second space between the locking piston and the end gable when the spindle is in its extended end position .
I sin utgangstilling befinner spindelen seg i sin inntrukne In its initial position, the spindle is in its retracted position
posisjon, låsetemplet befinner seg i en mellomposisjon mellom stemplet og mutteren, mens motoren dreier spindelen og derved verktøyet om spindelens lengdeakse. Trykkfluid strømmer gjennom akslingens og spindelens aksielle boringer. position, the locking piston is in an intermediate position between the piston and the nut, while the motor rotates the spindle and thereby the tool about the spindle's longitudinal axis. Pressurized fluid flows through the axial bores of the shaft and spindle.
Trykkfluid strømmer via den indre åpning inn i det første rom og forskyver låsestemplet frem til mutteren hvor låsestemplet bevirker at mutteren forskyves fra sin uvirksomme posisjon og til sin virksomme posisjon hvor den er i inngrep med spindelens gjenger. Pressurized fluid flows via the internal opening into the first chamber and displaces the locking piston towards the nut where the locking piston causes the nut to be displaced from its inactive position to its active position where it engages with the threads of the spindle.
Motoren mater derved spindelen ut fra sin inntrukne posisjon, hvorved væskestrømmen via den indre åpning stenges. The motor thereby feeds the spindle out from its retracted position, whereby the flow of liquid via the internal opening is closed.
Når spindelen inntar sin utskutte endeposisjon, avdekkes den ytre åpning hvorved trykkfluid kan strømme inn i det andre rom. Låsestemplet forskyves bort fra mutteren som derved forskyves tilbake til sin uvirksomme stilling. When the spindle takes up its extended end position, the outer opening is uncovered, whereby pressurized fluid can flow into the second chamber. The locking piston is displaced away from the nut, which is thereby displaced back to its inactive position.
Spindelen er med fordel forsynt med et stempel som er tettende, forskyvbart i sylindermantelen. Fluidtrykket forskyver låsestemplet og stemplet sammen med spindelen i retning motT sin utgangsposisjon. Den videre forskyvning av spindelen til sin utgangsposisjon kan for eksempel finne sted ved hjelp av en mot aktuatoren rettet kraft fra verktøyet. The spindle is advantageously provided with a sealable, displaceable piston in the cylinder jacket. The fluid pressure displaces the locking piston and the piston together with the spindle in the direction towards T its starting position. The further displacement of the spindle to its starting position can, for example, take place with the help of a force directed towards the actuator from the tool.
I en alternativ utførelsesform kan spindelen være koplet til en f jaer eller gassf jær som er innrettet til å kunne forskyve spindelen i retning innover i aktuatorhuset. In an alternative embodiment, the spindle can be connected to a spring or gas spring which is arranged to be able to displace the spindle inwardly in the actuator housing.
I en ytterligere utførelsesform forskyves spindelen innover i aktuatorhuset ved hjelp av en ytre forskyvingskraft. Låsestemplet er med fordel forsynt med utløsbare låsehaker som komplementært passer i et låsespor i sylindermantelen, idet stemplet er forsynt med en utløser som er innrettet til å løse ut låsehakene når stemplet befinner seg nær låsestemplet. In a further embodiment, the spindle is displaced inwards in the actuator housing by means of an external displacement force. The locking piston is advantageously provided with releasable locking hooks which complementarily fit into a locking groove in the cylinder jacket, the piston being provided with a trigger which is designed to release the locking hooks when the piston is located close to the locking piston.
Motoren drives typisk ved hjelp av trykkfluid, men elektrisk drift kan også være anvendelig under visse forhold. Det er fordelaktig at motoren befinner seg i aktuatorhuset, men motoren kan også i det minste rage delvis ut fra aktuatorhuset. The motor is typically operated using pressurized fluid, but electrical operation can also be used under certain conditions. It is advantageous for the motor to be located in the actuator housing, but the motor can also at least partially protrude from the actuator housing.
Ved at motoren mater spindelen i retning ut av aktuatorhuset ved hjelp av en gjenge-mutterforbindelse oppnås en jevn mate-hastighet selv om aksialkraften i spindelen skulle variere noe. Anordningen ifølge oppfinnelsen tilveiebringer en relativt enkel aktuator hvor spindelen automatisk forskyves utover med en konstant hastighet og deretter returnerer med en relativt høy hastighet før den igjen gjentar utmatingen av spindelen. By the motor feeding the spindle in the direction out of the actuator housing by means of a thread-nut connection, a uniform feed speed is achieved even if the axial force in the spindle should vary somewhat. The device according to the invention provides a relatively simple actuator where the spindle is automatically displaced outwards at a constant speed and then returns at a relatively high speed before it again repeats the output of the spindle.
I det etterfølgende beskrives et eksempel på en foretrukket utførelsesform som er anskueliggjort på medfølgende tegning-er, hvor: Fig. 1 delvis i snitt viser en aktuator i overensstemmelse med oppfinnelsen som er koplet mellom et kveilrør og en verktøykopling; Fig. 2 viser i noe større målestokk aktuatoren i sin utgangsposisjon; Fig. 3 viser det samme som i fig. 2, men her er et låsestempel under forskyvning i aktuatoren; Fig. 4 viser aktuatoren etter at låsestemplet har forskjøvet aktuatorens mutter til sin virksomme stilling; Fig. 5 viser aktuatorens spindel under utmating; Fig. 6 viser aktuatoren mens spindelen befinner seg i sin utskutte posisjon; Fig. 7 viser aktuatoren etter at låsestemplet er forskjøvet In what follows, an example of a preferred embodiment is described which is visualized in the accompanying drawings, where: Fig. 1 partially shows an actuator in accordance with the invention which is connected between a coiled tube and a tool coupling; Fig. 2 shows on a somewhat larger scale the actuator in its starting position; Fig. 3 shows the same as in fig. 2, but here a locking piston is under displacement in the actuator; Fig. 4 shows the actuator after the locking piston has shifted the actuator's nut to its active position; Fig. 5 shows the actuator's spindle during discharge; Fig. 6 shows the actuator while the spindle is in its extended position; Fig. 7 shows the actuator after the locking piston has been displaced
fra sin låsende stilling relativt mutteren; og from its locking position relative to the nut; and
Fig. 8 viser et snitt III-III i fig. 3. Fig. 8 shows a section III-III in fig. 3.
På tegningene betegner henvisningstallet 1 en aktuator som er innmontert mellom et kveilrør 2 og et ikke vist verktøy ved hj elp av en verktøyholder 4. In the drawings, the reference numeral 1 denotes an actuator which is fitted between a coil pipe 2 and a tool not shown by means of a tool holder 4.
Aktuatoren 1 omfatter et aktuatorhus 6 som er forsynt med en innvendig sylindermantel 8 samt en endegavl 10 ved sitt endeparti som vender bort fra kveilrøret 2. Endegavlen 10 er utformet med en sentrisk, gjennomgående åpning 12. En trykkfluiddrevet motor 14 med en gjennomgående senteråpning 16 er koplet til aktuatorhuset 6 og kveilrøret 2 ved hjelp av et adapter 18. The actuator 1 comprises an actuator housing 6 which is provided with an internal cylinder jacket 8 and an end end 10 at its end part facing away from the coil tube 2. The end end 10 is designed with a centric, continuous opening 12. A pressurized fluid-driven motor 14 with a continuous central opening 16 is connected to the actuator housing 6 and the coil tube 2 by means of an adapter 18.
Like innenfor endegavlen 10 er det anordnet et mutterhus 20 som omfatter et antall i mutterhuset 20 dreibare muttersegment 22. Hvert muttersegment 22 er dreibart om en mutteraks-ling 24 mellom en passiv posisjon, se fig. 2, og en aktiv posisjon, se fig. 4. Muttersegmentene 22 holdes i sin passive posisjon av en ringfjær 26. Muttersegmentene 22 utgjør samlet en mutter 28. Just inside the end gable 10, a nut housing 20 is arranged which comprises a number of nut segments 22 that can be rotated in the nut housing 20. Each nut segment 22 can be rotated about a nut shaft 24 between a passive position, see fig. 2, and an active position, see fig. 4. The nut segments 22 are held in their passive position by a ring spring 26. The nut segments 22 together form a nut 28.
I sin virksomme stilling er mutteren 28 i inngrep med en gjenget, aksialt gjennomboret spindel 30. Spindelen 30 rager aksialforskyvbart ut gjennom åpningen 12 i endegavlen 10, idet spindelen 30 er koplet til verktøyholderen 4. In its active position, the nut 28 engages with a threaded, axially pierced spindle 30. The spindle 30 protrudes axially displaceably through the opening 12 in the end end 10, the spindle 30 being connected to the tool holder 4.
Spindelen 30 er i sitt motstående, innoverragende endeparti forsynt med et stempel 32 som er tettende forskyvbart i sy lindermantelen 8. Spindelens 30 gjennomgående åpning 34, se fig. 2, er langs en andel av åpningen 34 tildelt en sekskant-form, se fig 8, som komplementært passer til en aksialt gjennomboret aksling 36. In its opposite, inwardly projecting end part, the spindle 30 is provided with a piston 32 which is sealingly displaceable in the cylinder jacket 8. The through opening 34 of the spindle 30, see fig. 2, along part of the opening 34 is assigned a hexagon shape, see fig. 8, which complementarily fits an axially pierced shaft 36.
Akslingen 36 dreies om sin lengdeakse av motoren 14. En indre åpning 40 gjennom akslingens 36 vegg korresponderer med en boring 42 i stemplet 32 når spindelen 30 befinner seg i sin inntrukne posisjon, se fig. 2. Boringen 42 munner ut på The shaft 36 is rotated about its longitudinal axis by the motor 14. An internal opening 40 through the wall of the shaft 36 corresponds to a bore 42 in the piston 32 when the spindle 30 is in its retracted position, see fig. 2. The bore 42 opens onto
r r
stemplets 32 mot mutteren 28 sin vennende side. piston 32 against nut 28's facing side.
En ventilhylse 44 forskyves tettende ved hjelp av en fjær 46 inn over den indre åpning 40 når spindelen 30 forskyves bort fra sin inntrukne posisjon, se fig. 5. A valve sleeve 44 is moved sealingly by means of a spring 46 over the inner opening 40 when the spindle 30 is moved away from its retracted position, see fig. 5.
Et låsestempel 48 som er forskyvbart i sylindermantelen 8, omkranser spindelen 30. Låsestemplet 48 er på sin mot mutteren 28 vennende side forsynt med et utvendig, konisk hylseutspring 50 som er innrettet til å kunne forskyves inn under muttersegmentenes 22 mot låsetemplet 48 vennende partier 51, idet låsestemplet 48 når det befinner seg i sin endeposisjon nærmest endegavlen 10 derved er innrettet til å kunne låse mutteren 28 i sin virksomme posisjon hvor mutteren 28 er i inngrep med spindelen 30, se fig. 4. A locking piston 48 which is displaceable in the cylinder casing 8 surrounds the spindle 30. On its side facing the nut 28, the locking piston 48 is provided with an external, conical sleeve projection 50 which is arranged to be able to be moved under the nut segments 22 towards the parts 51 facing the locking piston 48, the locking piston 48, when it is in its end position closest to the end gable 10, is thereby arranged to be able to lock the nut 28 in its effective position where the nut 28 is in engagement with the spindle 30, see fig. 4.
Når spindelen befinner seg i sin utskutte posisjon er en ytre åpning 52 i spindelens 30 vegg avdekket, idet den ytre åpning 52 da munner ut mellom endegavlen 10 og låsestemplet 48. When the spindle is in its extended position, an outer opening 52 in the wall of the spindle 30 is uncovered, as the outer opening 52 then opens out between the end gable 10 and the locking piston 48.
I denne foretrukne utførelsesform er låsestemplet 48 forsynt med et antall låsehaker 54 som er innrettet til å kunne gripe inn i et låsespor 56 i sylindermantelen 8, se fig. 4. Stemplet 32 er forsynt med en aksialforskyvbar, fjærforspent utlø-serhylse 58 som ved hjelp av en fjær 60 spennes i retning mot endegavlen 10. Utløserhylsen 58 er innrettet til å kunne forskyve låsehakene 54 ut fra sine respektive inngrep med låse sporet 56 når stemplet 32 befinner seg ved låsestemplet 48, se fig. 6. In this preferred embodiment, the locking piston 48 is provided with a number of locking hooks 54 which are arranged to be able to engage in a locking groove 56 in the cylinder jacket 8, see fig. 4. The piston 32 is provided with an axially displaceable, spring-biased trigger sleeve 58 which is tensioned by means of a spring 60 in the direction towards the end gable 10. The trigger sleeve 58 is designed to be able to displace the locking hooks 54 out of their respective engagements with the locking groove 56 when the piston 32 is located at the locking piston 48, see fig. 6.
I sin utgangstilling befinner spindelen 30 seg i sin inntrukne posisjon, og låsetemplet 48 befinner seg i en mellomposisjon mellom stemplet 32 og mutteren 28. Motoren 14 dreier akslingen 36, spindelen 30 og derved det ikke viste verktøy om spindelens 30 lengdeakse 62. Trykkfluid fra kveilrøret 2 strømmer via adapteret 18, motorens 14 senterboring 16, akslingen 36 og spindelen 30 til verktøyholderen 4. Samtidig strømmer trykkfluid via den indre åpning 40 og stemplets 32 boring 42 inn i et første rom 64 mellom stemplet 32 og låsestemplet 48. In its initial position, the spindle 30 is in its retracted position, and the locking piston 48 is in an intermediate position between the piston 32 and the nut 28. The motor 14 rotates the shaft 36, the spindle 30 and thereby the tool, not shown, about the longitudinal axis 62 of the spindle 30. Pressure fluid from the coil tube 2 flows via the adapter 18, the center bore 16 of the motor 14, the shaft 36 and the spindle 30 to the tool holder 4. At the same time, pressure fluid flows via the inner opening 40 and the bore 42 of the piston 32 into a first space 64 between the piston 32 and the locking piston 48.
Låsestemplet 48 forskyves i retning mot mutteren 28 av fluidtrykket, se fig. 3, inntil låsestemplet 48 kommer til anslag mot mutteren 28, idet låsestemplets 48 hylseutspring 50 befinner seg under muttersegmentenes 22 utragende partier 51, hvorved muttersegmentene 22 er forskjøvet til sine respektive aktive posisjoner hvor de befinner seg i inngrep med spindelen 30, se fig. 4. Samtidig griper låsehakene 54 inn i låsesporet 56 og forhindrer derved mutteren 28 fra å kunne forskyves innover i aktuatorhuset 6. The locking piston 48 is displaced in the direction towards the nut 28 by the fluid pressure, see fig. 3, until the locking piston 48 comes to rest against the nut 28, the sleeve projection 50 of the locking piston 48 being located under the projecting parts 51 of the nut segments 22, whereby the nut segments 22 are displaced to their respective active positions where they are in engagement with the spindle 30, see fig. 4. At the same time, the locking hooks 54 engage in the locking groove 56 and thereby prevent the nut 28 from being able to move inward into the actuator housing 6.
Den roterende spindel 30 som dreies av motoren 14, skrues ved hjelp av mutteren 28 utover i aktuatorhuset 16, se fig. 5. Fjæren 46 i akslingen 36 forskyver derved ventilhylsen 44 stengende inn over den indre åpning 40. Fluid fra det første rom 64 evakueres via boringen 42 i stemplet 32. Aktuatorhuset 6 kan for øvrig etterfylles med fluid fra aktuatorens 1 ut-side via en åpning 66 i aktuatorhuset 6. The rotating spindle 30, which is turned by the motor 14, is screwed by means of the nut 28 outwards into the actuator housing 16, see fig. 5. The spring 46 in the shaft 36 thereby displaces the valve sleeve 44 closing over the inner opening 40. Fluid from the first chamber 64 is evacuated via the bore 42 in the piston 32. The actuator housing 6 can also be refilled with fluid from the outside of the actuator 1 via an opening 66 in the actuator housing 6.
Når motoren 14 har matet spindelen 30 ut til sin utskutte endeposisjon, se fig. 6, befinner utløserhylsen 58 seg inne under låsehakene 54, hvorved låsehakene 54 er dreid ut fra sitt inngrep i låsesporet 56. Samtidig kommuniserer den ytre åpning 52 med et andre rom 68 som befinner seg mellom endegavlen 10 og låsestemplet 48. I dette foretrukne utførelsesek-sempel er også mutteren 28 matet ut av inngrep med spindelen 30. When the motor 14 has fed the spindle 30 out to its extended end position, see fig. 6, the trigger sleeve 58 is located inside under the locking hooks 54, whereby the locking hooks 54 are rotated out of their engagement in the locking groove 56. At the same time, the outer opening 52 communicates with a second space 68 which is located between the end end 10 and the locking piston 48. In this preferred embodiment example, the nut 28 is also fed out of engagement with the spindle 30.
Trykket fra trykkfluidet som strømmer inn i det andre rom 68 virker mot låsestemplet 48 og kraften overvinner kraften fra fjæren 60, hvorved utløserhylsen 50 forskyves tilstrekkelig tilbake relativt stemplet 32 til at låsestemplets 48 hylseutspring 50 kommer ut av inngrepet med muttersegmentene 22, se fig. 7. Ringfjæren 26 forskyver muttersegmentene 22 til sine respektive uvirksomme posisjoner, hvorved spindelen 30 kan forskyves tilbake til sin innskjøvne utgangsstilling. The pressure from the pressure fluid flowing into the second chamber 68 acts against the locking piston 48 and the force overcomes the force from the spring 60, whereby the trigger sleeve 50 is displaced sufficiently back relative to the piston 32 so that the locking piston 48's sleeve projection 50 comes out of the engagement with the nut segments 22, see fig. 7. The annular spring 26 moves the nut segments 22 to their respective inactive positions, whereby the spindle 30 can be moved back to its pushed-in starting position.
På figurene er det vist et antall tetninger som generelt er tildelt henvisningstallet 70. Tetningenes 70 hensikt og vir-kemåte er velkjent og beskrives ikke nærmere. Grunnet den relativt store strømningsrate av trykkfluid som er tilstede, stilles det ikke store krav til tetningene 70. For eksempel har det vist seg unødvendig å anbringe en tetning mellom endegavlen 10 og spindelen 30. The figures show a number of seals which are generally assigned the reference number 70. The purpose and function of the seals 70 are well known and will not be described in more detail. Due to the relatively large flow rate of pressure fluid that is present, there are no great demands on the seals 70. For example, it has proved unnecessary to place a seal between the end plate 10 and the spindle 30.
Claims (8)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20074140A NO326954B1 (en) | 2007-08-09 | 2007-08-09 | Device by linear actuator for axial displacement of a tool in a borehole |
| PCT/NO2008/000283 WO2009020395A2 (en) | 2007-08-09 | 2008-08-06 | Actuator device |
| EP08793895A EP2179125A2 (en) | 2007-08-09 | 2008-08-06 | Actuator device |
| US12/672,871 US20100206552A1 (en) | 2007-08-09 | 2008-08-06 | Actuator Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20074140A NO326954B1 (en) | 2007-08-09 | 2007-08-09 | Device by linear actuator for axial displacement of a tool in a borehole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20074140L NO20074140L (en) | 2009-02-10 |
| NO326954B1 true NO326954B1 (en) | 2009-03-23 |
Family
ID=40341924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20074140A NO326954B1 (en) | 2007-08-09 | 2007-08-09 | Device by linear actuator for axial displacement of a tool in a borehole |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100206552A1 (en) |
| EP (1) | EP2179125A2 (en) |
| NO (1) | NO326954B1 (en) |
| WO (1) | WO2009020395A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10626683B2 (en) | 2015-08-11 | 2020-04-21 | Weatherford Technology Holdings, Llc | Tool identification |
| US10167671B2 (en) | 2016-01-22 | 2019-01-01 | Weatherford Technology Holdings, Llc | Power supply for a top drive |
| US11131151B2 (en) | 2017-03-02 | 2021-09-28 | Weatherford Technology Holdings, Llc | Tool coupler with sliding coupling members for top drive |
| US10443326B2 (en) | 2017-03-09 | 2019-10-15 | Weatherford Technology Holdings, Llc | Combined multi-coupler |
| US10711574B2 (en) | 2017-05-26 | 2020-07-14 | Weatherford Technology Holdings, Llc | Interchangeable swivel combined multicoupler |
| US10526852B2 (en) | 2017-06-19 | 2020-01-07 | Weatherford Technology Holdings, Llc | Combined multi-coupler with locking clamp connection for top drive |
| US10745978B2 (en) * | 2017-08-07 | 2020-08-18 | Weatherford Technology Holdings, Llc | Downhole tool coupling system |
| US11047175B2 (en) | 2017-09-29 | 2021-06-29 | Weatherford Technology Holdings, Llc | Combined multi-coupler with rotating locking method for top drive |
| US11441412B2 (en) | 2017-10-11 | 2022-09-13 | Weatherford Technology Holdings, Llc | Tool coupler with data and signal transfer methods for top drive |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751024A (en) * | 1954-03-29 | 1956-06-19 | Johnston Testers Inc | Well tool actuating device |
| US5048612A (en) * | 1990-09-10 | 1991-09-17 | Lindsey Completion Systems, Inc. | Double nut setting tool and linger hanger assembly |
| US5584342A (en) * | 1995-06-06 | 1996-12-17 | Ponder Industries, Inc. | Subterranean rotation-inducing device and method |
| US6655458B2 (en) * | 2001-11-06 | 2003-12-02 | Schlumberger Technology Corporation | Formation testing instrument having extensible housing |
| US7051810B2 (en) * | 2003-09-15 | 2006-05-30 | Halliburton Energy Services, Inc. | Downhole force generator and method for use of same |
| US6923256B2 (en) * | 2003-10-28 | 2005-08-02 | Varco I/P, Inc. | Disconnect device |
| US7367397B2 (en) * | 2006-01-05 | 2008-05-06 | Halliburton Energy Services, Inc. | Downhole impact generator and method for use of same |
| US7607478B2 (en) * | 2006-04-28 | 2009-10-27 | Schlumberger Technology Corporation | Intervention tool with operational parameter sensors |
| US7467661B2 (en) * | 2006-06-01 | 2008-12-23 | Halliburton Energy Services, Inc. | Downhole perforator assembly and method for use of same |
-
2007
- 2007-08-09 NO NO20074140A patent/NO326954B1/en not_active IP Right Cessation
-
2008
- 2008-08-06 US US12/672,871 patent/US20100206552A1/en not_active Abandoned
- 2008-08-06 WO PCT/NO2008/000283 patent/WO2009020395A2/en active Application Filing
- 2008-08-06 EP EP08793895A patent/EP2179125A2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009020395A2 (en) | 2009-02-12 |
| NO20074140L (en) | 2009-02-10 |
| WO2009020395A3 (en) | 2010-03-11 |
| US20100206552A1 (en) | 2010-08-19 |
| EP2179125A2 (en) | 2010-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO326954B1 (en) | Device by linear actuator for axial displacement of a tool in a borehole | |
| NO334262B1 (en) | Device for directional control of drilling tools | |
| AU2018256467B2 (en) | Downhole tool method and device | |
| SE526252C2 (en) | Hydraulic drill string device | |
| US20180223625A1 (en) | Fully electric tool for downhole inflow control | |
| US10670160B2 (en) | Electrically actuated safety valve and method | |
| NO860833L (en) | PROCEDURE AND DEVICE FOR SELF-EFFECTIVE LOADING AND RELEASE OF STAMP TYPE ACTUATORS. | |
| GB2553921A (en) | Remote hydraulic control of downhole tools | |
| NO336515B1 (en) | Device for cutting into a pipe or tank | |
| NO792750L (en) | HYDRAULIC LOESRIVERVERKTOY. | |
| US20200158140A1 (en) | Electrohydraulic System for Use Under Water, comprising an Electrohydraulic Actuator | |
| NO831942L (en) | REMOTE CONTROL VALVE. | |
| NO328145B1 (en) | Well tractor with equipment for detecting tractor housing displacement and method for the same. | |
| NO20101487A1 (en) | Device for operating downhole equipment | |
| AU2011235927B2 (en) | Down-the-hole drill hammer having a sliding exhaust check valve | |
| MX2015006634A (en) | Downhole power system. | |
| SE542480C2 (en) | Mining or construction vehicle enclosing a conduit arrangement | |
| CN103148262A (en) | Power assisted manual valve system | |
| NO323924B1 (en) | Device for pressure compensated swivel | |
| EP0140938A1 (en) | Sub sea production choke and actuator | |
| NO328403B1 (en) | Device by estimate tool | |
| NO317433B1 (en) | Method and apparatus for drilling inside tubes located within each other | |
| RU2300618C1 (en) | Submersible hydraulic hammer | |
| US1177683A (en) | Rock-drill. | |
| GB2610772A (en) | Tubular for downhole use, a downhole tubular system and method of forming a fluid passageway at a tubular for downhole use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |