US2260487A - Fluid deflector for well drills - Google Patents
Fluid deflector for well drills Download PDFInfo
- Publication number
- US2260487A US2260487A US320985A US32098540A US2260487A US 2260487 A US2260487 A US 2260487A US 320985 A US320985 A US 320985A US 32098540 A US32098540 A US 32098540A US 2260487 A US2260487 A US 2260487A
- Authority
- US
- United States
- Prior art keywords
- cutter
- fluid
- bearings
- cutters
- shaft
- 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.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title description 26
- 238000011010 flushing procedure Methods 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000013707 sensory perception of sound Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
- 238000003466 welding Methods 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
Definitions
- My invention relates to well drills and more particularly to means upon such drills for directing the course of the flushing fluid relative to the cutters.
- the flushing fluid employed in clearing the cutters of the cuttings and carrying said cuttings to the surface, is normally filled with abrasive particles, sand and the like. This fluid circulates at high speed and under high pressure and the sand tends to cut the metal of the bit. Hard metal is employed in the fluid discharging nozzles and in the cutters to resist this wear. However, the flushing fluid isdeflected laterally upon contact with the cutters and is forced in around the bearings of the cutters so strongly that undue wear upon the bearings is experienced. The bearings are found to be cut away by the flushing fluid so that their normal life is materially shortened.
- the bearings normally are subjected to heavy wear due to the weight of the drilling string upon thebit and the rotation of the drill, but'due to the strong circulation of mud about the bearings, further wear results and the bearings and interior of the cutters do not last during the life of the teeth upon the cutters.
- the invention also includes a deflecting recess in the body of the drill.
- Fig. 1 is a central longitudinal section through one section' ofa three cone bit embodying the normal type of bit and illustrating the course of the flushing fluid where my deflecting recess is employed.
- Fig. 2 is a perspective view of the cutter shaft and adjacent portion of the bit head with my deflecting plate and recess both employed thereon.
- Fig. 3 is a broken sectional detail showing the manner in which the flushing fluid is diverted away from the cutter bearings.
- the drill to which my invention is applied in the drawing is a well known type of drill in which the head is formed in three longitudinal sections, each equipped with a cutter shaft and a conical shaped cutter thereon.
- the body portion I has an upwardly tapered and threaded shank 2 and the lower end is inclined downwardly and outwardly on its inner face 3. Upon this face "is a down- I .wardly inclined cutter shaft 4.
- the cutter shaft has raceways 5 and 6 formed therein to receive the rollers 1 and balls 8 respectively.
- a recess into which is pressed a hard metal pilot pin 9.
- An approximately conical shaped cutter I0 is fitted over the endof the shaft. It has raceways to receive the hearings in the usual manner.
- a hard bearing ring or bushing ll Surrounding the pilot pin 9 in the cutter is a hard bearing ring or bushing ll.
- the cutter is formed with circumferential rows of cutting teeth l4 thereon in a manner well known in the art.
- the cutter wall ha a fluid circulating opening l5 therein and it will be understood that the flushing fluid will fill the spaces on the interior of the cutter about the bearings so as to reduce friction and keep the bearings cool.
- the flushing fluid is discharged against the surface of each cutter adjacent the base thereof through a discharge nozzle l6. As shownin Fig. 1
- the fluid engages the cone surface and is deflected laterally, part of the stream being directed only a small amount of the mud will flow down about the base of the cone and around the bearings. The larger portion will enter the recess I 8 in the bit head and be deflected back. The portion of. the'stream that circulates into the space about the base of the cutter is insufficient to cause excessive wear upon the bearings suchas would otherwise result from the splashing of the fluid in the direction of the shaft.
- I may place a baflle or deflector plate l9 upon the inner face 3 of the bit head and about This plate may be in the form of a flange formed integral with the head as shown in Fig. 3 or it may be welded in place after the head is formed as will be obvious from Fig. 2.
- the lateral stream will bediverted by the flange or plate into the recess l8 to be engaged by the flushing fluid discharged by said nozzle to direct the course of said fluid away and from thence back toward the axis of the drill.
- the flange when separately formed may a be of a hard wear resisting material which will endure during the life of the cutting surface" of I combination of a deflector plate on said head about the upper portion of each of said cutters from thebearings of said cutters.
- a well drill having a head, a cutter shaft thereon, a cutter rotatable onbearings on said shaft and a nozzle to discharge flushing fluid upon said cutter, the combination of a recessed and curved outwardly inclined surface thereon, a cutter shaft 4 projecting from said surface, a cutter rotatable thereon, cutters on said shafts and a nozzle to U discharge flushing fluid upon said cutters;
- a fluid discharge nozzle to deliver flushing fluid upon said cutter, an arcuate flange formed on said surface conforming to the 'outer curvature of said cutter, said flange acting to divertflushin'g fluid away from said shaft.
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- 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
Oct. 28, 1941. sco-r'r 2,250,487
FLUID DEFLECTOR FOR' WELL DRILLS Filed Feb. 27, 1940 9- loya L.$c0 I? INVENTOR.
' W ,bZZ- ATTORNEYS.
Patented Oct. 28,
2,260,487 FLUID narmzo'ron FOR WELL DRlLLS J Floyd L. Scott, Houston, Tex., assignor toflughes Tool Company, Houston, Tex., a corporation of Delaware Application February 27, 1940, Serial No. 320,985
e 3 Claims.
My invention relates to well drills and more particularly to means upon such drills for directing the course of the flushing fluid relative to the cutters.
In well drills the flushing fluid, employed in clearing the cutters of the cuttings and carrying said cuttings to the surface, is normally filled with abrasive particles, sand and the like. This fluid circulates at high speed and under high pressure and the sand tends to cut the metal of the bit. Hard metal is employed in the fluid discharging nozzles and in the cutters to resist this wear. However, the flushing fluid isdeflected laterally upon contact with the cutters and is forced in around the bearings of the cutters so strongly that undue wear upon the bearings is experienced. The bearings are found to be cut away by the flushing fluid so that their normal life is materially shortened. The bearings normally are subjected to heavy wear due to the weight of the drilling string upon thebit and the rotation of the drill, but'due to the strong circulation of mud about the bearings, further wear results and the bearings and interior of the cutters do not last during the life of the teeth upon the cutters.
It is an object of theinvention to provide a deflecting means upon the drill which will be engaged by the stream of flushing fluid and direct the said fluid away from the bearings.
I aim to form adjacent the base of a rotating cutter, a battle which directs the flushing fluid laterally toward the bit head, and away from the cutter bearings and still efficiently cleans, the teeth of the cutter. The invention also includes a deflecting recess in the body of the drill.
In the drawing herewith Fig. 1 is a central longitudinal section through one section' ofa three cone bit embodying the normal type of bit and illustrating the course of the flushing fluid where my deflecting recess is employed. i
Fig. 2 is a perspective view of the cutter shaft and adjacent portion of the bit head with my deflecting plate and recess both employed thereon.
Fig. 3 is a broken sectional detail showing the manner in which the flushing fluid is diverted away from the cutter bearings.
The drill to which my invention is applied in the drawing is a well known type of drill in which the head is formed in three longitudinal sections, each equipped with a cutter shaft and a conical shaped cutter thereon. In Fig. 1, one such section is shown. The body portion I, has an upwardly tapered and threaded shank 2 and the lower end is inclined downwardly and outwardly on its inner face 3. Upon this face "is a down- I .wardly inclined cutter shaft 4.
Three such sections are fitted and welded together for connection to a drill collar for drilling.
The cutter shaft has raceways 5 and 6 formed therein to receive the rollers 1 and balls 8 respectively. ,At the end of the shaft is a recess into which is pressed a hard metal pilot pin 9. An approximately conical shaped cutter I0 is fitted over the endof the shaft. It has raceways to receive the hearings in the usual manner. Surrounding the pilot pin 9 in the cutter is a hard bearing ring or bushing ll. After the cutter has been placed upon the'shaft the balls 8 are inserted into position 'in the raceways 6, through a bore l2 which is then filled with a plug l3 which is then locked against removal by welding material. a
The cutter is formed with circumferential rows of cutting teeth l4 thereon in a manner well known in the art. The cutter wall ha a fluid circulating opening l5 therein and it will be understood that the flushing fluid will fill the spaces on the interior of the cutter about the bearings so as to reduce friction and keep the bearings cool.
The flushing fluid is discharged against the surface of each cutter adjacent the base thereof through a discharge nozzle l6. As shownin Fig. 1
the fluid engages the cone surface and is deflected laterally, part of the stream being directed only a small amount of the mud will flow down about the base of the cone and around the bearings. The larger portion will enter the recess I 8 in the bit head and be deflected back. The portion of. the'stream that circulates into the space about the base of the cutter is insufficient to cause excessive wear upon the bearings suchas would otherwise result from the splashing of the fluid in the direction of the shaft.
To further alleviate this wear upon the bear-v ings, I may place a baflle or deflector plate l9 upon the inner face 3 of the bit head and about This plate may be in the form of a flange formed integral with the head as shown in Fig. 3 or it may be welded in place after the head is formed as will be obvious from Fig. 2.
This plate I!) The lateral stream will bediverted by the flange or plate into the recess l8 to be engaged by the flushing fluid discharged by said nozzle to direct the course of said fluid away and from thence back toward the axis of the drill. The flange when separately formed may a be of a hard wear resisting material which will endure during the life of the cutting surface" of I combination of a deflector plate on said head about the upper portion of each of said cutters from thebearings of said cutters.
2. In a well drill having a head, a cutter shaft thereon, a cutter rotatable onbearings on said shaft and a nozzle to discharge flushing fluid upon said cutter, the combination of a recessed and curved outwardly inclined surface thereon, a cutter shaft 4 projecting from said surface, a cutter rotatable thereon, cutters on said shafts and a nozzle to U discharge flushing fluid upon said cutters; the
on said shaft, a fluid discharge nozzle to deliver flushing fluid upon said cutter, an arcuate flange formed on said surface conforming to the 'outer curvature of said cutter, said flange acting to divertflushin'g fluid away from said shaft.
' FLOYD -L. SCOTT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US320985A US2260487A (en) | 1940-02-27 | 1940-02-27 | Fluid deflector for well drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US320985A US2260487A (en) | 1940-02-27 | 1940-02-27 | Fluid deflector for well drills |
Publications (1)
Publication Number | Publication Date |
---|---|
US2260487A true US2260487A (en) | 1941-10-28 |
Family
ID=23248671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US320985A Expired - Lifetime US2260487A (en) | 1940-02-27 | 1940-02-27 | Fluid deflector for well drills |
Country Status (1)
Country | Link |
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US (1) | US2260487A (en) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692117A (en) * | 1951-11-13 | 1954-10-19 | Reed Roller Bit Co | Drill bit |
US2875984A (en) * | 1955-03-28 | 1959-03-03 | Globe Oil Tools | Well-drilling roller bit |
US3127942A (en) * | 1962-01-02 | 1964-04-07 | Smith Ind International Inc | Bearing closure for rotary rock bit |
US3145776A (en) * | 1962-07-30 | 1964-08-25 | Halliburton Co | Hydra-jet tool |
US3186500A (en) * | 1961-02-09 | 1965-06-01 | Reed Roller Bit Co | Gage maintaining arrangement for drill bit cutters |
US4475603A (en) * | 1982-09-27 | 1984-10-09 | Petroleum Instrumentation & Technological Services | Separator sub |
US4488607A (en) * | 1982-09-27 | 1984-12-18 | Petroleum Instrumentation & Technological Services | Separator sub with annular flow passage |
EP0219992A2 (en) * | 1985-10-01 | 1987-04-29 | Reed Tool Company Limited | Improvements in or relating to rotary drill bits |
US4688651A (en) * | 1986-03-21 | 1987-08-25 | Dresser Industries, Inc. | Cone mouth debris exclusion shield |
US4784231A (en) * | 1987-08-07 | 1988-11-15 | Dresser Industries, Inc. | Extended drill bit nozzle having side discharge ports |
US5056610A (en) * | 1990-09-17 | 1991-10-15 | Smith International, Inc. | Shale diverting means for a sealed bearing drill bit |
WO1996005404A1 (en) * | 1994-08-08 | 1996-02-22 | Dresser Industries, Inc. | Rotary cone drill bit with improved support arms |
US5547033A (en) * | 1994-12-07 | 1996-08-20 | Dresser Industries, Inc. | Rotary cone drill bit and method for enhanced lifting of fluids and cuttings |
US5553681A (en) * | 1994-12-07 | 1996-09-10 | Dresser Industries, Inc. | Rotary cone drill bit with angled ramps |
US5606895A (en) * | 1994-08-08 | 1997-03-04 | Dresser Industries, Inc. | Method for manufacture and rebuild a rotary drill bit |
US5641029A (en) * | 1995-06-06 | 1997-06-24 | Dresser Industries, Inc. | Rotary cone drill bit modular arm |
USD384084S (en) * | 1995-09-12 | 1997-09-23 | Dresser Industries, Inc. | Rotary cone drill bit |
US5755297A (en) * | 1994-12-07 | 1998-05-26 | Dresser Industries, Inc. | Rotary cone drill bit with integral stabilizers |
US6082473A (en) * | 1998-05-22 | 2000-07-04 | Dickey; Winton B. | Drill bit including non-plugging nozzle and method for removing cuttings from drilling tool |
US6131676A (en) * | 1997-10-06 | 2000-10-17 | Excavation Engineering Associates, Inc. | Small disc cutter, and drill bits, cutterheads, and tunnel boring machines employing such rolling disc cutters |
US20050178589A1 (en) * | 2004-02-17 | 2005-08-18 | Baker Hughes Incorporated | Mud diverter for earth-boring bit |
US20060113114A1 (en) * | 2003-04-15 | 2006-06-01 | Feng Jin | Drilling tool and method |
EP2990588A1 (en) * | 2014-08-28 | 2016-03-02 | Sandvik Intellectual Property AB | By-pass fluid passageway for drill bit |
-
1940
- 1940-02-27 US US320985A patent/US2260487A/en not_active Expired - Lifetime
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692117A (en) * | 1951-11-13 | 1954-10-19 | Reed Roller Bit Co | Drill bit |
US2875984A (en) * | 1955-03-28 | 1959-03-03 | Globe Oil Tools | Well-drilling roller bit |
US3186500A (en) * | 1961-02-09 | 1965-06-01 | Reed Roller Bit Co | Gage maintaining arrangement for drill bit cutters |
US3127942A (en) * | 1962-01-02 | 1964-04-07 | Smith Ind International Inc | Bearing closure for rotary rock bit |
US3145776A (en) * | 1962-07-30 | 1964-08-25 | Halliburton Co | Hydra-jet tool |
US4475603A (en) * | 1982-09-27 | 1984-10-09 | Petroleum Instrumentation & Technological Services | Separator sub |
US4488607A (en) * | 1982-09-27 | 1984-12-18 | Petroleum Instrumentation & Technological Services | Separator sub with annular flow passage |
EP0219992A3 (en) * | 1985-10-01 | 1987-08-05 | Nl Petroleum Products Limited | Improvements in or relating to rotary drill bits |
EP0219992A2 (en) * | 1985-10-01 | 1987-04-29 | Reed Tool Company Limited | Improvements in or relating to rotary drill bits |
US4688651A (en) * | 1986-03-21 | 1987-08-25 | Dresser Industries, Inc. | Cone mouth debris exclusion shield |
US4784231A (en) * | 1987-08-07 | 1988-11-15 | Dresser Industries, Inc. | Extended drill bit nozzle having side discharge ports |
US5056610A (en) * | 1990-09-17 | 1991-10-15 | Smith International, Inc. | Shale diverting means for a sealed bearing drill bit |
US5606895A (en) * | 1994-08-08 | 1997-03-04 | Dresser Industries, Inc. | Method for manufacture and rebuild a rotary drill bit |
WO1996005404A1 (en) * | 1994-08-08 | 1996-02-22 | Dresser Industries, Inc. | Rotary cone drill bit with improved support arms |
US5624002A (en) * | 1994-08-08 | 1997-04-29 | Dresser Industries, Inc. | Rotary drill bit |
US5595255A (en) * | 1994-08-08 | 1997-01-21 | Dresser Industries, Inc. | Rotary cone drill bit with improved support arms |
US5553681A (en) * | 1994-12-07 | 1996-09-10 | Dresser Industries, Inc. | Rotary cone drill bit with angled ramps |
US5547033A (en) * | 1994-12-07 | 1996-08-20 | Dresser Industries, Inc. | Rotary cone drill bit and method for enhanced lifting of fluids and cuttings |
US5755297A (en) * | 1994-12-07 | 1998-05-26 | Dresser Industries, Inc. | Rotary cone drill bit with integral stabilizers |
US5641029A (en) * | 1995-06-06 | 1997-06-24 | Dresser Industries, Inc. | Rotary cone drill bit modular arm |
USD384084S (en) * | 1995-09-12 | 1997-09-23 | Dresser Industries, Inc. | Rotary cone drill bit |
US6131676A (en) * | 1997-10-06 | 2000-10-17 | Excavation Engineering Associates, Inc. | Small disc cutter, and drill bits, cutterheads, and tunnel boring machines employing such rolling disc cutters |
US6082473A (en) * | 1998-05-22 | 2000-07-04 | Dickey; Winton B. | Drill bit including non-plugging nozzle and method for removing cuttings from drilling tool |
US20060113114A1 (en) * | 2003-04-15 | 2006-06-01 | Feng Jin | Drilling tool and method |
US20050178589A1 (en) * | 2004-02-17 | 2005-08-18 | Baker Hughes Incorporated | Mud diverter for earth-boring bit |
US7306061B2 (en) * | 2004-02-17 | 2007-12-11 | Baker Hughes Incorporated | Mud diverter for earth-boring bit |
EP2990588A1 (en) * | 2014-08-28 | 2016-03-02 | Sandvik Intellectual Property AB | By-pass fluid passageway for drill bit |
CN106661923A (en) * | 2014-08-28 | 2017-05-10 | 山特维克知识产权股份有限公司 | By-pass fluid passageway for drill tool |
US10626677B2 (en) | 2014-08-28 | 2020-04-21 | Sandvik Intellectual Property Ab | By-pass fluid passageway for drill tool |
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