NO347533B1 - Device for rowwise variable roller drill bits - Google Patents
Device for rowwise variable roller drill bits Download PDFInfo
- Publication number
- NO347533B1 NO347533B1 NO20211604A NO20211604A NO347533B1 NO 347533 B1 NO347533 B1 NO 347533B1 NO 20211604 A NO20211604 A NO 20211604A NO 20211604 A NO20211604 A NO 20211604A NO 347533 B1 NO347533 B1 NO 347533B1
- Authority
- NO
- Norway
- Prior art keywords
- cutters
- shaft
- cylindrical
- rotation
- toothing
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000008602 contraction Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 description 6
- 239000003673 groundwater Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/327—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being pivoted about a longitudinal axis
-
- 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
-
- 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/34—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type
-
- 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
- E21B12/00—Accessories for drilling tools
- E21B12/06—Mechanical cleaning devices
Landscapes
- 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)
- Earth Drilling (AREA)
Description
ANORDNING VED RADIELT VARIABEL RULLEBOREKRONE DEVICE FOR RADIALLY VARIABLE ROLLER DRILL CROWN
Denne oppfinnelsen omhandler en roterende borekrone av det slaget som benyttes til boring i fjellformasjoner. Nærmere bestemt dreier det seg om en borekrone der diameteren på borekrona kan varieres og tilpasses forskjellige diametere på borehullet. This invention relates to a rotating drill bit of the type used for drilling in rock formations. More specifically, it concerns a drill bit where the diameter of the drill bit can be varied and adapted to different diameters of the drill hole.
Framføring av nye infrastrukturer som vannavløp og elektrisk kraftforsyning med jordkabler, blir etter hvert mer krevende når slike infrastrukturer skal graves ned i områder med tettbebyggelse, eller med restriksjoner på grunn av miljøhensyn. Det er nå et sterkt økende behov for nye teknologier som kan løse disse utfordringene på en økonomisk og miljømessig tilfredsstillende måte. Implementation of new infrastructures such as water drainage and electrical power supply with underground cables gradually becomes more demanding when such infrastructures are to be buried in densely built-up areas, or with restrictions due to environmental concerns. There is now a strongly increasing need for new technologies that can solve these challenges in an economically and environmentally satisfactory way.
Utfordringer med boring for nye infrastrukturer er i hovedsak knyttet til boring av lange retningsstyrte borehull med diameter ca. 1 m og opp mot 2 km lengde. Challenges with drilling for new infrastructures are mainly related to drilling long directional boreholes with a diameter of approx. 1 m and up to 2 km in length.
For å kunne bore slike borehull på en sikker måte er det, i de fleste tilfeller, nødvendig med kontinuerlig utforing av borehullet etter hvert som boringen foregår for å sikre at ikke borehullet raser sammen. In order to be able to drill such boreholes in a safe manner, it is, in most cases, necessary to continuously line the borehole as the drilling takes place to ensure that the borehole does not collapse.
I områder der grunnvannstanden er kritisk faktor må utforingen av borehullet sikre at ikke grunnvannstanden påvirkes av boringen. In areas where the groundwater level is a critical factor, the design of the borehole must ensure that the groundwater level is not affected by the drilling.
Kjent teknikk omfatter US 1944556 A, som beskriver en hydraulisk underrømmer. Underrømmeren mangler senterkrone og har ikke midler som kan overføre en aksialkraft fra formasjonen foran verktøyet og inn i verktøyet. Verktøyet beveges i et allerede eksisterende borehull, og er helt og holdent væskedrevet. Prior art includes US 1944556 A, which describes a hydraulic sub-reamer. The lower reamer lacks a center crown and does not have means that can transfer an axial force from the formation in front of the tool into the tool. The tool is moved in an already existing borehole, and is completely fluid-driven.
En boremaskin med tilhørende roterende borekrone som er anbrakt i front av utforingen må bore et hull i formasjonen som er større enn utforingen, slik at utforingen kan trekkes etter. En borekrone som borer i fjellformasjoner blir utsatt for stor slitasje og må med jevne mellomrom kunne trekkes ut for å bytte slitedeler, uten at hele foringen må trekkes ut. Dette betinger at borekrona kan trekkes sammen radielt, slik at den kan trekkes ut gjennom foringen. A drilling machine with an associated rotary drill bit that is placed in front of the casing must drill a hole in the formation that is larger than the casing, so that the casing can be pulled. A drill bit that drills into rock formations is exposed to a lot of wear and must be able to be pulled out at regular intervals to replace wearing parts, without the entire casing having to be pulled out. This requires that the drill bit can be pulled together radially, so that it can be pulled out through the casing.
Utfordringen er å frembringe en robust og driftssikker løsning for radielt ekspandert borekrone, uten bruk av fjernkontroll fra overflaten. The challenge is to produce a robust and reliable solution for a radially expanded drill bit, without the use of remote control from the surface.
Det finnes borekroner som dekker noen av utfordringene, men ikke på tilfredsstillende måte for rulleborekroner med rulleskjær. There are drill bits that cover some of the challenges, but not satisfactorily for roller drill bits with roller cutters.
Med foreliggende oppfinnelse har en kommet frem til en anordning for rulleborekrone som løser utfordringene med radielt ekspanderbar rulleborekrone, uten fjernkontroll fra overflaten. With the present invention, a device for a roller drill bit has been arrived at that solves the challenges of a radially expandable roller drill bit, without remote control from the surface.
Dette oppnås i henhold til oppfinnelsen ved de tekniske løsninger som er beskrevet i etterfølgende beskrivelse og patentkrav med henvisning til figurer. This is achieved according to the invention by the technical solutions described in the following description and patent claims with reference to figures.
Oppfinnelsen skal nå forklares nærmere med henvisning til et foretrukket utførelseseksempel og med henvisning til etterfølgende figurer. The invention will now be explained in more detail with reference to a preferred embodiment and with reference to subsequent figures.
Fig 1 Viser roterende variabel borekrone tilkoblet boremaskin Fig 1 Shows a rotating variable drill bit connected to a drilling machine
Fig 2 Viser «eksplodert» tegning av komponenter i borekrona Fig 2 Shows an "exploded" drawing of components in the drill bit
Fig 3 Viser roterende rulleborekrone sett fra siden Fig 3 Shows a rotating rotary drill bit seen from the side
Fig 4 Viser snitt A-A fra fig 3 Fig 4 Shows section A-A from fig 3
Fig 5 Viser variabel rulleborekrone i utkjørt posisjon Fig 5 Shows the variable roller drill bit in extended position
Fig 6 Viser variabel rulleborekrone i innkjørt posisjon Fig 6 Shows the variable roller drill bit in the run-in position
Med henvisning til figurene angir henvisningstallet 1 en boremaskin hvortil det er koblet en roterende radielt variabel borekrone 2 med rotasjon 12 i forhold til ikke-roterende boremaskin 1. På roterende borekrone 2 er det anordnet to eller flere radielt bevegelige kuttere 4 og to eller flere faste kuttere 6 samt senterkrone 5. With reference to the figures, reference numeral 1 denotes a drilling machine to which a rotating radially variable drill bit 2 is connected with rotation 12 in relation to non-rotating drilling machine 1. Two or more radially movable cutters 4 and two or more fixed cutters 4 are arranged on the rotating drill bit 2 cutters 6 and center crown 5.
Kutterne 4 og 6 med senterkrone 5 roterer og blir presset mot formasjonen 3, slik at materiale brytes løs fra formasjonen 3. Masse som brytes løs blir fraktet med vannstrøm 9 gjennom en knuseanordning 11, mellom roterende borekrone 2 og ikke-roterende boremaskin 1, og ut gjennom hullåpninger 14. The cutters 4 and 6 with center crown 5 rotate and are pressed against the formation 3, so that material is broken loose from the formation 3. Mass that is broken loose is transported with water flow 9 through a crushing device 11, between rotating drill bit 2 and non-rotating drilling machine 1, and out through hole openings 14.
For å tilveiebringe radiell bevegelse av kutterne 4 er disse opplagret med aksel 15 dreibart om akse 19 i sylindrisk enhet 23 og festet til akslingen 15 med adapter 17. Ved å dreie akslingen 15 en rotasjon 20 inntar kutterne 4 en inntrukket posisjon som vist i fig 6. Akslingene 15 er tilordnet fortanning 16 og opplagret til sylindrisk enhet 23 med foringer 22. Fortanningen 16 går i inngrep mot fortanningen 21 på sylindrisk strengdel 24, slik at en rotasjon av sylindrisk strengdel 24 vil rotere kutterne 4 om akse 19. Rotasjon av sylindrisk strengdel 24 tilveiebringes ved at skråspline 27 går i inngrep mot motsvarende skråspline 26 på sylindrisk enhet 23. Sylindrisk strengdel 24 er låst for aksialbevegelse med hylsen 28 slik at en aksial bevegelse 32 av sylindrisk enhet 23 vil, gjennom skråspline forbindelsen 26, 27 bevirke rotasjon av fortanningen 21 og derigjennom rotasjon av akselen 15 med påmonterte kuttere 4. Sylindrisk adapter 18 roterer og er rotasjonsstivt forbundet til sylindrisk enhet 23 gjennom splines forbindelsen 29 og opplagret med lagerflater til sylindrisk enhet 23 slik at den kan beveges aksielt i forhold til sylindrisk adapter 18. In order to provide radial movement of the cutters 4, these are stored with a shaft 15 rotatable about axis 19 in a cylindrical unit 23 and attached to the shaft 15 with an adapter 17. By turning the shaft 15 a rotation 20, the cutters 4 take a retracted position as shown in fig 6 The shafts 15 are assigned to the toothing 16 and supported to the cylindrical unit 23 with bushings 22. The toothing 16 engages the toothing 21 on the cylindrical string part 24, so that a rotation of the cylindrical string part 24 will rotate the cutters 4 about axis 19. Rotation of the cylindrical string part 24 is provided by the inclined spline 27 engaging the corresponding inclined spline 26 on the cylindrical unit 23. Cylindrical string part 24 is locked for axial movement with the sleeve 28 so that an axial movement 32 of the cylindrical unit 23 will, through the inclined spline connection 26, 27, cause rotation of the toothing 21 and thereby rotation of the shaft 15 with mounted cutters 4. Cylindrical adapter 18 rotates and is rotationally rigidly connected to cylindrical unit 23 through splines connection 29 and supported with bearing surfaces of cylindrical unit 23 so that it can be moved axially in relation to cylindrical adapter 18.
Ved å påføre kuttere 4 en aksial kraft 36 presses sylindrisk enhet 23 aksielt i forhold til sylindrisk adapter 18. Dette bevirker relativ forskyvning av skrå splines forbindelsene 26, 27 og rotasjon av sylindrisk strengdel 24 som igjen roterer akselen 15 påmontert kuttere 4. By applying an axial force 36 to the cutters 4, the cylindrical unit 23 is pressed axially in relation to the cylindrical adapter 18. This causes relative displacement of the inclined spline connections 26, 27 and rotation of the cylindrical string part 24, which in turn rotates the shaft 15 mounted on the cutter 4.
Radiell sammentrekking av kutterne 4 aktiveres når aksialkraften 36 på kutterne er mindre enn fjærkraften på fjærene 37. Radial contraction of the cutters 4 is activated when the axial force 36 on the cutters is less than the spring force on the springs 37.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20211604A NO347533B1 (en) | 2021-12-30 | 2021-12-30 | Device for rowwise variable roller drill bits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20211604A NO347533B1 (en) | 2021-12-30 | 2021-12-30 | Device for rowwise variable roller drill bits |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20211604A1 NO20211604A1 (en) | 2023-07-03 |
NO347533B1 true NO347533B1 (en) | 2023-12-11 |
Family
ID=87473726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20211604A NO347533B1 (en) | 2021-12-30 | 2021-12-30 | Device for rowwise variable roller drill bits |
Country Status (1)
Country | Link |
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NO (1) | NO347533B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1944556A (en) * | 1931-07-06 | 1934-01-23 | Alonzo L Halliday | Hydraulic underreamer |
US20180266186A1 (en) * | 2017-03-14 | 2018-09-20 | Dennis BURCA | Collapsible multi-sized drill bit and method of use |
WO2020082153A1 (en) * | 2018-10-22 | 2020-04-30 | Halliburton Energy Services, Inc. | Rotating cutter apparatus for reducing the size of solid objects in a fluid |
-
2021
- 2021-12-30 NO NO20211604A patent/NO347533B1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1944556A (en) * | 1931-07-06 | 1934-01-23 | Alonzo L Halliday | Hydraulic underreamer |
US20180266186A1 (en) * | 2017-03-14 | 2018-09-20 | Dennis BURCA | Collapsible multi-sized drill bit and method of use |
WO2020082153A1 (en) * | 2018-10-22 | 2020-04-30 | Halliburton Energy Services, Inc. | Rotating cutter apparatus for reducing the size of solid objects in a fluid |
Also Published As
Publication number | Publication date |
---|---|
NO20211604A1 (en) | 2023-07-03 |
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