EP0678150A1 - Aleseur ameliore a rouleaux rotatifs - Google Patents
Aleseur ameliore a rouleaux rotatifsInfo
- Publication number
- EP0678150A1 EP0678150A1 EP95900553A EP95900553A EP0678150A1 EP 0678150 A1 EP0678150 A1 EP 0678150A1 EP 95900553 A EP95900553 A EP 95900553A EP 95900553 A EP95900553 A EP 95900553A EP 0678150 A1 EP0678150 A1 EP 0678150A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spindle
- passage
- roller
- reamer
- extending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000314 lubricant Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003082 abrasive agent Substances 0.000 claims description 5
- 239000004519 grease Substances 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000020347 spindle assembly Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
-
- 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
- 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
- E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
- E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers
Definitions
- This invention relates to a rotary roller reamer of the general type which is used in boreholes, and described and illustrated in the Applicant's earlier Australian Patent No 594885.
- the main object of this invention is to provide a more satisfactory bearing arrangement, and this has been achieved by utilising a piston which floats freely in a cylindrical lubricant passage and lies between a bearing surface of the roller and the pressure space exterior of the roller, so that the piston will apply the same pressure to lubricant as the external pressure, thereby reducing the pressure differential and in turn retaining the lubricant in the bearing structure.
- Fig 1 is a fragmentary view of a reamer body, showing two of three roller sets;
- Fig 2 is a longitudinal section through Fig 1 and drawn to a slightly larger scale
- Fig 3 is a split cross-section taken on line 3-3 of Fig 2, drawn to a still further larger scale.
- a rotary roller reamer 10 is of the type which is used for reaming a hole cut by a drill on the end of a drill string.
- the functions of a reamer are first to maintain a hole size when wear causes the effective diameter of a drill to reduce, and second to smooth the surface of the borehole.
- the rotary roller reamer arrangement of this invention performs those functions.
- the reamer 10 shown in Fig 1 contains several rollers 11 each with a plurality of tungsten carbide buttons 12 arranged circumferential ly around it.
- the spindle 13 is retained in respect to the blocks 14 either by retainer fasteners, herein grub screws 15, and these come away with the blocks 14 when they are removed so that they can be separately removed and there is no access difficulty as with the early prior art.
- passages 19 Running centrally part way into the spindle 13 from its ends are passages 19, shown partly in Fig 2 as being formed by the walls of an aperture extending from one end , and partly by the bore of a tube 20 extending from the other, the wall of tube 20 functioning as a heat transfer wall to reduce surface temperatures of the adjacent bearing.
- the tube 20 is illustrated to contain a piston 21 which can conveniently be of elastomeric material, and that piston is freely slidable within the tube 20.
- the outer end of the tube 20 opens to a "breather" aperture 22 in the reamer body, and the piston then being slidable imparts the same pressure inside the passage 19 as exists around the drill string, with very little pressure differential.
- the interior of the roller is charged with grease through a pressure plug 27, and that grease is pressured by the piston 21 to be the same as the external pressure. It is possible to use two resilient seals, and the resilient seals 28 between spindle 13 and roller 11 are lubricated by the grease and seal it against expulsion, while the resilient seals 29 sealing between a said block 14, spindle 13 and roller 11 , and performing the primary function of reducing the ingress of abrasive material to the seals 28 and the secondary function of partly effecting a seal against ingress of moisture.
- the spindle 13 is provided with two flats 30 connected to the passages 19 through diametral apertures 31 , and this lubrication is of great importance in the difficult environment of a bore hole, flow of grease being impelled from tube 20 to the flats 30, and thereby to the bearing surface of spindle 13, by externally supplied pressure.
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)
- Rolls And Other Rotary Bodies (AREA)
- Massaging Devices (AREA)
- Sliding-Contact Bearings (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Joints Allowing Movement (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Cleaning In General (AREA)
Abstract
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPM230593 | 1993-11-10 | ||
AUPM2305/93 | 1993-11-10 | ||
AUPM230593 | 1993-11-10 | ||
PCT/AU1994/000691 WO1995013452A1 (fr) | 1993-11-10 | 1994-11-10 | Aleseur ameliore a rouleaux rotatifs |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0678150A1 true EP0678150A1 (fr) | 1995-10-25 |
EP0678150A4 EP0678150A4 (fr) | 1999-06-16 |
EP0678150B1 EP0678150B1 (fr) | 2003-06-04 |
Family
ID=3777338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95900553A Expired - Lifetime EP0678150B1 (fr) | 1993-11-10 | 1994-11-10 | Aleseur ameliore a rouleaux rotatifs |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0678150B1 (fr) |
AT (1) | ATE242417T1 (fr) |
BG (1) | BG62058B1 (fr) |
CA (1) | CA2154285C (fr) |
DE (1) | DE69432786T2 (fr) |
HU (1) | HU218196B (fr) |
RU (1) | RU2105122C1 (fr) |
WO (1) | WO1995013452A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0006757D0 (en) * | 2000-03-22 | 2000-05-10 | Design Engineering Limited | Roller reamer with thrust bearing |
ATE455931T1 (de) * | 2002-11-07 | 2010-02-15 | Extreme Machining Australia Pt | Verbesserter rotierender rollenräumer |
WO2008006146A1 (fr) * | 2006-07-12 | 2008-01-17 | Omni Oil Technologies | Alésoir à cylindre |
GB2472848A (en) | 2009-08-21 | 2011-02-23 | Paul Bernard Lee | Downhole reamer apparatus |
BR112013020744A2 (pt) * | 2011-02-17 | 2016-10-18 | Robbins Co | conjunto de cortador para máquina de perfurar túnel com compensação de pressão |
US9157282B2 (en) | 2011-11-30 | 2015-10-13 | Smith International, Inc. | Roller reamer compound wedge retention |
RU2579101C1 (ru) * | 2015-03-05 | 2016-03-27 | ООО "Камышинский завод бурового инструмента" (ООО "КЗБИ") | Шарошка бурового долота |
RU2612171C1 (ru) * | 2015-09-09 | 2017-03-02 | Общество с ограниченной ответственностью "Камышинский завод бурового инструмента" (ООО "КЗБИ") | Шарошка бурового долота |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3365247A (en) * | 1964-06-24 | 1968-01-23 | Aquitaine Petrole | Roller bits for borehole drilling |
US3982594A (en) * | 1975-06-15 | 1976-09-28 | Bralorne Resources Limited | Eccentric stabilizer |
CA1044220A (fr) * | 1976-12-16 | 1978-12-12 | Bralorne Resources Limited | Stabilisateur a sous-ensembles echangeables |
GB2053319A (en) * | 1979-06-21 | 1981-02-04 | Dresser Ind | Earth boring apparatus |
EP0274265A2 (fr) * | 1987-01-06 | 1988-07-13 | DARRON TOOL & ENGINEERING (SHEFFIELD) LIMITED | Dispositif d'alésoir à rouleaux |
US4792000A (en) * | 1986-08-04 | 1988-12-20 | Oil Patch Group, Inc. | Method and apparatus for well drilling |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB176048A (en) * | 1920-10-25 | 1922-02-27 | Clarence Edward Reed | Improvements in or relating to well-boring drills |
CA1016534A (en) * | 1972-12-29 | 1977-08-30 | Kenneth M. White | Roller reamer stabilizer |
AU594885C (en) * | 1987-07-07 | 2004-10-07 | Gearhart United Pty Ltd | Rotary roller reamer |
-
1994
- 1994-11-10 WO PCT/AU1994/000691 patent/WO1995013452A1/fr active IP Right Grant
- 1994-11-10 AT AT95900553T patent/ATE242417T1/de active
- 1994-11-10 CA CA002154285A patent/CA2154285C/fr not_active Expired - Lifetime
- 1994-11-10 DE DE69432786T patent/DE69432786T2/de not_active Expired - Lifetime
- 1994-11-10 RU RU95114368A patent/RU2105122C1/ru active
- 1994-11-10 HU HU9502230A patent/HU218196B/hu unknown
- 1994-11-10 EP EP95900553A patent/EP0678150B1/fr not_active Expired - Lifetime
-
1995
- 1995-08-03 BG BG99845A patent/BG62058B1/bg unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3365247A (en) * | 1964-06-24 | 1968-01-23 | Aquitaine Petrole | Roller bits for borehole drilling |
US3982594A (en) * | 1975-06-15 | 1976-09-28 | Bralorne Resources Limited | Eccentric stabilizer |
CA1044220A (fr) * | 1976-12-16 | 1978-12-12 | Bralorne Resources Limited | Stabilisateur a sous-ensembles echangeables |
GB2053319A (en) * | 1979-06-21 | 1981-02-04 | Dresser Ind | Earth boring apparatus |
US4792000A (en) * | 1986-08-04 | 1988-12-20 | Oil Patch Group, Inc. | Method and apparatus for well drilling |
EP0274265A2 (fr) * | 1987-01-06 | 1988-07-13 | DARRON TOOL & ENGINEERING (SHEFFIELD) LIMITED | Dispositif d'alésoir à rouleaux |
Non-Patent Citations (1)
Title |
---|
See also references of WO9513452A1 * |
Also Published As
Publication number | Publication date |
---|---|
HU9502230D0 (en) | 1995-09-28 |
DE69432786D1 (de) | 2003-07-10 |
DE69432786T2 (de) | 2004-05-13 |
BG99845A (bg) | 1996-04-30 |
BG62058B1 (bg) | 1999-01-29 |
RU2105122C1 (ru) | 1998-02-20 |
EP0678150B1 (fr) | 2003-06-04 |
HUT72293A (en) | 1996-04-29 |
HU218196B (hu) | 2000-06-28 |
EP0678150A4 (fr) | 1999-06-16 |
ATE242417T1 (de) | 2003-06-15 |
WO1995013452A1 (fr) | 1995-05-18 |
CA2154285A1 (fr) | 1995-05-18 |
CA2154285C (fr) | 2005-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5715898A (en) | Stabiliser for a downhole apparatus | |
US4176848A (en) | Rotary bearing seal for drill bits | |
EP0472809B1 (fr) | Dispositif d'étanchéité pour trépan de forage à organes coupants roulants avec un système de lubrification équilibré en pression | |
US4179003A (en) | Seal for a rolling cone cutter earth boring bit | |
US4200343A (en) | Sealing system for a rotary rock bit | |
US4825964A (en) | Arrangement for reducing seal damage between rotatable and stationary members | |
US5381868A (en) | Sealed bearing roller reamer | |
US8397838B2 (en) | Rotary roller reamer | |
US4793719A (en) | Precision roller bearing rock bits | |
US4613002A (en) | Downhole drilling tool with improved swivel | |
US4167219A (en) | Viscous pump rock bit lubrication system | |
US4381824A (en) | Drill bit lubrication system | |
CA2154285C (fr) | Aleseur ameliore a rouleaux rotatifs | |
US4181185A (en) | Thrust flange actuated rock bit lubrication system | |
AU675186B2 (en) | Improved rotary roller reamer | |
EP0415519B1 (fr) | Système d'étanchéité double pour trépan de forage rotatif | |
US4262759A (en) | Combination seal and pressure relief valve for sealed drill string unit | |
US2362860A (en) | Earth boring rock bit | |
CA1132974A (fr) | Trepan de forage a bossage d'etancheite excentrique | |
US4211453A (en) | Rock drill bit lubrication system | |
US3966274A (en) | Roller separator for bit bearings | |
AU2004269049B2 (en) | Rotary roller reamer | |
CA2169217A1 (fr) | Sous-ensemble reducteur de couple | |
WO2007117242A1 (fr) | Appareil et procede de lubrification de trepan |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR GB |
|
17P | Request for examination filed |
Effective date: 19951108 |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19990507 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): AT DE FR GB |
|
17Q | First examination report despatched |
Effective date: 20020318 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 69432786 Country of ref document: DE Date of ref document: 20030710 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
ET | Fr: translation filed | ||
26N | No opposition filed |
Effective date: 20040305 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20131028 Year of fee payment: 20 Ref country code: DE Payment date: 20131106 Year of fee payment: 20 Ref country code: FR Payment date: 20131108 Year of fee payment: 20 Ref country code: GB Payment date: 20131106 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69432786 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20141109 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 242417 Country of ref document: AT Kind code of ref document: T Effective date: 20141110 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20141109 |