EP0512330A1 - Outil de forage - Google Patents
Outil de forage Download PDFInfo
- Publication number
- EP0512330A1 EP0512330A1 EP92106952A EP92106952A EP0512330A1 EP 0512330 A1 EP0512330 A1 EP 0512330A1 EP 92106952 A EP92106952 A EP 92106952A EP 92106952 A EP92106952 A EP 92106952A EP 0512330 A1 EP0512330 A1 EP 0512330A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- swirl chamber
- assembly
- waves
- bit according
- 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
- 210000000056 organ Anatomy 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 19
- 239000012530 fluid Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009747 swallowing Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
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
- E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
Definitions
- the present invention relates to a rock-destroying drilling tool and in particular relates to a drill bit.
- a drill bit which contains a hollow body with attached stones-destroying organs - rollers.
- a replaceable cylinder is arranged in the body and is fixed with respect to the former by pins.
- a chisel transition piece is connected to the body by means of a threaded connection, within which a slide sleeve of an assembly for generating hydrodynamic shafts with side channels and a central channel, in which wear-resistant attachments are mounted, is accommodated axially to the body.
- the chisel transition piece has an inner ring shoulder, which serves as a support for a spring which surrounds the bush and cooperates with the flanged edge of the bush.
- the valve sleeve is first flushed through the central channel.
- a force acts on the flanged edge of the sleeve, which is caused by a pressure drop on the attachment, which is arranged in the central channel.
- the spring is compressed until the side channels come to rest under the end face of the cylinder.
- the side channels open and the fluid pressure in the sleeve drops so much that the spring brings the sleeve back up until these channels have been covered and the cycle repeats.
- the flushing liquid located in the space between it and the bit transition piece is expelled upward through overflow openings.
- the frequency of the pendulum movements of the sleeve can be regulated by the pump power and the cross-sectional area of the hydromonitor attachments.
- the invention has for its object to provide a drill bit with such a structural design of the assembly for generating hydrodynamic waves, which by generating a turbulent flow of the drilling fluid, the exploitation of the high energy of a directed effect of the hydrodynamic waves generated by the liquid flow with a wide frequency spectrum in the zone near the borehole and the generation of a vacuum in this.
- the assembly for generating hydrodynamic waves in the form of a swirl chamber with tangentially arranged inlet channels and a conically tapered outlet channel with a rounded end face.
- the vortex chambers are strong hydrodynamic wave emitters with a wide frequency spectrum.
- the vortex chambers in the zone near the borehole create a vacuum, which promotes the process of destruction and sole cleaning of the mud.
- the narrowing of the outlet channel of the swirl chamber is due to the fact that when the Channel diameter the frequency of rotation of the liquid proportional to the ratio of the diameter of the swirl chamber and the outlet nozzle and accordingly the frequency of the wave radiation increases.
- the design of the end face of the outlet channel with a radial rounding is due to the need to keep hydraulic losses when directing the drilling fluid into the annulus, and also improves the quality of the vacuum in the zone near the borehole. It is expedient to make the cavity of the swirl chamber spherical.
- the choice of the shape of the swirl chamber in the shape of a sphere is due to a high amplitude of the waves generated by spherical emitters working in self-oscillation mode with a periodic hydraulic self-locking of the outlet channel.
- the swirl chamber is provided with a conical wave reflector arranged in the upper part thereof in the direction of its longitudinal axis, the angle of inclination of the generatrix of the conical surface of the reflector being below the critical value of the sliding angle of a wave incident on the conical surface.
- the tuning to the resonance frequency takes place by moving the piston by means of a worm rod and by changing the volume of the resonance chamber under the piston.
- the drill bit designed according to the invention ensures a high effectiveness of the borehole sinking. In addition, it enables shaft colmatation of the borehole wall when passing through geologically complex horizons (in fall-up, swallowing zones, in the event of water, oil, or gas leaks). The application of the registered drill bit also allows the mechanical drilling speed and the length of the bit to be increased significantly.
- the drill bit according to the invention contains a body 1 (FIG. 1) with attached rock-destroying organs - rollers 2.
- a body 1 (FIG. 1) with attached rock-destroying organs - rollers 2.
- an assembly for generating hydrodynamic waves which represents a swirl chamber 3 with tangential inlet channels 4.
- the vortex chamber 3 has a very conically tapering outlet channel 5.
- the end face 6 of this channel 5 is radially rounded.
- the swirl chamber 3 is provided with a conical wave reflector 7 (Fig. 1, 2).
- the conical reflector 7 serves to prevent wear of the head of the swirl chamber 3 under the action of hydroacoustic and hydro shock, high-frequency and ultrasonic waves and occurs as a hydroacoustic wave concentrator.
- the body 1 of the drill bit 1 can also serve as the body of the swirl chamber 3 (FIGS. 3, 4).
- the swirl chamber 3 (FIG. 5) can be designed in a spherical shape with tangential inlet channels 4 and a central outlet channel 5.
- the swirl chamber 3 (FIG. 6) can be equipped with a resonance chamber 8, in the interior of which a piston 9 with a rod 10 is accommodated. By screwing the rod 1 in and out, the volume of the chamber 8 under the piston 9 is changed.
- the drill bit works as follows.
- the drilling fluid is passed through a drill string 11 (FIG. 7) into the tangentially directed inlet channels 4. Furthermore, the drilling fluid flows through the tangential channels 4 into the swirl chamber 3. In the swirl chamber 3, the drilling fluid is set in rotation and directed through the outlet channel 5 into the annular space.
- the hydroacoustic waves generated by the assembly mainly spread in two directions: towards the inside of the swirl chamber 3 and onto the bottom of the borehole.
- the inwardly directed hydroacoustic waves are picked up by the conical wave reflector 7, from the conical surface of which is totally reflected and scattered, without having a destructive effect on the head of the swirl chamber 3.
- This increases the operational safety and duration of the chisel, while the hydroacoustic waves directed at the bottom of the borehole intensively destroy the central part of the bottom of the borehole and are superior to tooth-shaped mechanical stone destruction in some rocks.
- the application of the registered drill bit allows the mechanical drilling speed and the length of the bit to be significantly increased compared to the prototypes and the best applicable bits.
- the effectiveness is achieved by generating a high wave energy directed effect in the zone near the borehole.
- the present chisel ensures wave colmatation of the borehole wall when passing through geologically complex horizons (in fall-up, swallowing zones, in the event of water, oil, natural gas leaks).
- the invention can be used in well drilling using rock-destroying roll-type organs.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4928471 | 1991-05-06 | ||
SU4928471 | 1991-05-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0512330A1 true EP0512330A1 (fr) | 1992-11-11 |
EP0512330B1 EP0512330B1 (fr) | 1996-09-18 |
Family
ID=21570314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92106952A Expired - Lifetime EP0512330B1 (fr) | 1991-05-06 | 1992-04-23 | Outil de forage |
Country Status (5)
Country | Link |
---|---|
US (1) | US5303784A (fr) |
EP (1) | EP0512330B1 (fr) |
JP (1) | JP2610749B2 (fr) |
CA (1) | CA2068005C (fr) |
DE (1) | DE59207153D1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9302146A (nl) * | 1993-05-05 | 1995-07-03 | Kt Bjuro Tekhn Sredstv Burenia | Boorkop uitgerust met wervelmondstukken en wervelmondstuk voor gebruik in de boorkop. |
RU2555852C1 (ru) * | 2014-06-11 | 2015-07-10 | Виталий Анатольевич Ясашин | Буровое шарошечное долото |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6338390B1 (en) * | 1999-01-12 | 2002-01-15 | Baker Hughes Incorporated | Method and apparatus for drilling a subterranean formation employing drill bit oscillation |
US20020148606A1 (en) * | 2001-03-01 | 2002-10-17 | Shunfeng Zheng | Method and apparatus to vibrate a downhole component by use of acoustic resonance |
US7980332B1 (en) | 2010-10-25 | 2011-07-19 | Hall David R | Downhole centrifugal drilling fluid separator |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4687066A (en) * | 1986-01-15 | 1987-08-18 | Varel Manufacturing Company | Rock bit circulation nozzle |
GB2224054A (en) * | 1988-09-29 | 1990-04-25 | Shell Int Research | Drill bit equipped with vortex nozzles and vortex nozzle for use in the bit |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105560A (en) * | 1960-01-04 | 1963-10-01 | Maria N Zublin | Weight controlled vibratory drilling device |
US3416487A (en) * | 1966-03-22 | 1968-12-17 | Green Eng Co | Method and apparatus for generating and applying sonic energy |
US3441094A (en) * | 1966-08-05 | 1969-04-29 | Hughes Tool Co | Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid |
US3415330A (en) * | 1967-02-10 | 1968-12-10 | Gen Dynamics Corp | Hydroacoustic apparatus |
US3532174A (en) * | 1969-05-15 | 1970-10-06 | Nick D Diamantides | Vibratory drill apparatus |
US3610347A (en) * | 1969-06-02 | 1971-10-05 | Nick D Diamantides | Vibratory drill apparatus |
US4512420A (en) * | 1980-07-17 | 1985-04-23 | Gill Industries, Inc. | Downhole vortex generator |
US4475603A (en) * | 1982-09-27 | 1984-10-09 | Petroleum Instrumentation & Technological Services | Separator sub |
-
1992
- 1992-04-23 EP EP92106952A patent/EP0512330B1/fr not_active Expired - Lifetime
- 1992-04-23 DE DE59207153T patent/DE59207153D1/de not_active Expired - Fee Related
- 1992-05-05 CA CA002068005A patent/CA2068005C/fr not_active Expired - Fee Related
- 1992-05-05 US US07/878,474 patent/US5303784A/en not_active Expired - Fee Related
- 1992-05-06 JP JP4113815A patent/JP2610749B2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4687066A (en) * | 1986-01-15 | 1987-08-18 | Varel Manufacturing Company | Rock bit circulation nozzle |
GB2224054A (en) * | 1988-09-29 | 1990-04-25 | Shell Int Research | Drill bit equipped with vortex nozzles and vortex nozzle for use in the bit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9302146A (nl) * | 1993-05-05 | 1995-07-03 | Kt Bjuro Tekhn Sredstv Burenia | Boorkop uitgerust met wervelmondstukken en wervelmondstuk voor gebruik in de boorkop. |
RU2555852C1 (ru) * | 2014-06-11 | 2015-07-10 | Виталий Анатольевич Ясашин | Буровое шарошечное долото |
Also Published As
Publication number | Publication date |
---|---|
EP0512330B1 (fr) | 1996-09-18 |
JP2610749B2 (ja) | 1997-05-14 |
DE59207153D1 (de) | 1996-10-24 |
US5303784A (en) | 1994-04-19 |
CA2068005C (fr) | 1998-08-25 |
JPH06257367A (ja) | 1994-09-13 |
CA2068005A1 (fr) | 1992-11-07 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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ITF | It: translation for a ep patent filed |
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