US1888216A - Antifriction device - Google Patents

Antifriction device Download PDF

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Publication number
US1888216A
US1888216A US242921A US24292127A US1888216A US 1888216 A US1888216 A US 1888216A US 242921 A US242921 A US 242921A US 24292127 A US24292127 A US 24292127A US 1888216 A US1888216 A US 1888216A
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United States
Prior art keywords
sections
collar
pipe
sleeve
stem
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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
Application number
US242921A
Inventor
Clinton H M Bull
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reed Roller Bit Co
Original Assignee
Reed Roller Bit Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reed Roller Bit Co filed Critical Reed Roller Bit Co
Priority to US242921A priority Critical patent/US1888216A/en
Application granted granted Critical
Publication of US1888216A publication Critical patent/US1888216A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • E21B17/1064—Pipes or rods with a relatively rotating sleeve

Definitions

  • This invention relates to deep well drilling apparatus, and more particularly to drill V stem anti-friction devices.
  • the usual drill stem comprises a number 5 of pipe sections connected together by tool joint couplings.
  • the stem moves laterally intocontact with the sides of the hole, because of loose joints, bent portions, or the like, and such movement results in objectionable wear.
  • the driller taps each section to discover worn portions Badly worn pipe sections are discarded and new pipe sections used in the place thereof.
  • a more specific object is to provide an anti-friction device comprising separable bearing sections, and means whereby any number of said sections may be grouped together on a drill stem.
  • Fig. 1 is a fragmentary side elevation of a drill stem with the anti-friction device thereon, the device being shown in section;
  • Fig. 2 a section on the line 2-2 of Fig. 1;
  • Fig. 3 a detail sectional elevation of the bushing;
  • Fig. 4 a detail side elevation of the inner sleeve of a retaining device;
  • Fig. 5 a detail sectional elevation of the outer sleeve of a retaining device.
  • the anti-friction device includes bearing elements comprising bushing 2, collar 3, and balls 4 therebetween, the collar 3 having internal annular raceways for said balls.
  • the bushing 2, as shown, comprises two sections, and the collar 3, four sections. It is to be understood, however, that as many of these i: I
  • the gripping teeth on the one of said plugs is disposed of at substantially right angles to the gripping teeth on the other, so that the sleeve 5is locked against movement longitudinally of said pipe and around said pipe.
  • the external surface of, sleeve 5 adjacent its plug openings is tapered as shown at 5a, and the inner surface of sleeve 6 is tapered as shown I at 6a.
  • the surface 6a comes in contact with the plugs 7, said plugs being thereby forced into gripping engagement with the drill stem 1.
  • the sleeve 5 and bushing 2 are provided? with interfitting 111 relative rotation thereof.
  • gaskets 9 may be interposed between collar 3 and sleeves 5 and6.
  • the bushing2 and collar 3 may comprise any number of separable sections to cover any portion of the stem. 'The sections of the collar are independently revoluble, so that should one become locked on and rotate with the drill stem, the other or others will remain stationary while the drill stem rotates therein; and should anyone become worn, a new one may be used in its place, the other original sections being used-with the new.
  • the bearing elements may be held on any portion of the drill stem.
  • a drill pipe of an anti-friction device having a pair of pipe gripping elements, each of said elements comprising an inner and an outer sleeve, said inner sleeve having a radial opening therein and said outer sleeve having a tapered portion adjacent said opening, and a pipe gripping plug movable in said opening and actuated by said portion when said sleeves are moved With respect to each other;:abushing between said elements; a plurality of collar sections on said bushing, said collar sections being revoluble independently of each other;

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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

Nov. 22, 1932. c. H. M. BULL ANTIFRIGTION DEVICE Filed Dec. 27. 1927 5 .m. m 8 ML A TTORNEY Patented Nov. 22, 1932 UNITED STATES ATE T oF- I C 4 CLINTON n. M. BULL, or HOUSTON, TEXAS, AssIeNoa'ro REED ROLLER B COMPANY,
or HOUSTON, TEXAS, A CORPORATION or TEXAS ANtrna'nIc'rIoN DEVICE Application filed December 27, 1927. Serial No. 242,921.
This invention relates to deep well drilling apparatus, and more particularly to drill V stem anti-friction devices.
The usual drill stem comprises a number 5 of pipe sections connected together by tool joint couplings. During drilling operations, the stem moves laterally intocontact with the sides of the hole, because of loose joints, bent portions, or the like, and such movement results in objectionable wear. As the stem is removed from the hole by pipe sec tions, the driller taps each section to discover worn portions Badly worn pipe sections are discarded and new pipe sections used in the place thereof.
This invent-ion has for one of its objects the provision of a new and improved anti-friction device embodying means whereby it may be held in place on any part of a drill stem, to
prevent wear thereof, and to prevent practical resistance to the rotation thereof.
A more specific object is to provide an anti-friction device comprising separable bearing sections, and means whereby any number of said sections may be grouped together on a drill stem.
Other objects will hereinafter appear.
In the accompanying drawing, which is illustrative of the preferred embodiment of the invention, Fig. 1 is a fragmentary side elevation of a drill stem with the anti-friction device thereon, the device being shown in section; Fig. 2, a section on the line 2-2 of Fig. 1; Fig. 3, a detail sectional elevation of the bushing; Fig. 4, a detail side elevation of the inner sleeve of a retaining device; and
Fig. 5, a detail sectional elevation of the outer sleeve of a retaining device.
The anti-friction device includes bearing elements comprising bushing 2, collar 3, and balls 4 therebetween, the collar 3 having internal annular raceways for said balls. The bushing 2, as shown, comprises two sections, and the collar 3, four sections. It is to be understood, however, that as many of these i: I
in place by a suitable ring 8. The gripping teeth on the one of said plugs is disposed of at substantially right angles to the gripping teeth on the other, so that the sleeve 5is locked against movement longitudinally of said pipe and around said pipe.
The external surface of, sleeve 5 adjacent its plug openings is tapered as shown at 5a, and the inner surface of sleeve 6 is tapered as shown I at 6a. When the outer sleeve 6 is screwed on the inner sleeve 5, the surface 6a comes in contact with the plugs 7, said plugs being thereby forced into gripping engagement with the drill stem 1.
The sleeve 5 and bushing 2 are provided? with interfitting 111 relative rotation thereof.
If desired, gaskets 9 may be interposed between collar 3 and sleeves 5 and6.
As above pointed out, the bushing2 and collar 3 may comprise any number of separable sections to cover any portion of the stem. 'The sections of the collar are independently revoluble, so that should one become locked on and rotate with the drill stem, the other or others will remain stationary while the drill stem rotates therein; and should anyone become worn, a new one may be used in its place, the other original sections being used-with the new.
By means of assembly comprising the sleeves 5 and 6 and plugs 7 the bearing elements may be held on any portion of the drill stem.
The invention is not limited to the preferred embodiment shown. Various changes may be made within the scope of the following claim.
gs 5b and 2a to prevent I claim: a The combination with a drill pipe of an anti-friction device having a pair of pipe gripping elements, each of said elements comprising an inner and an outer sleeve, said inner sleeve having a radial opening therein and said outer sleeve having a tapered portion adjacent said opening, and a pipe gripping plug movable in said opening and actuated by said portion when said sleeves are moved With respect to each other;:abushing between said elements; a plurality of collar sections on said bushing, said collar sections being revoluble independently of each other;
and balls between each of said sections and said bushing.
CLINTON H. BULL. a
US242921A 1927-12-27 1927-12-27 Antifriction device Expired - Lifetime US1888216A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482889A (en) * 1967-09-18 1969-12-09 Driltrol Stabilizers for drilling strings
US4877092A (en) * 1988-04-15 1989-10-31 Teleco Oilfield Services Inc. Near bit offset stabilizer
WO1991000411A1 (en) * 1989-06-29 1991-01-10 The Red Baron (Oil Tools Rental) Limited Drill string component
US5204483A (en) * 1992-04-02 1993-04-20 Tellechea Albert F Gun barrel cleaning device
US20100181064A1 (en) * 2007-07-06 2010-07-22 Wellbore Energy Solutions, Llc Multi-Purpose Well Servicing Apparatus
US20110203852A1 (en) * 2010-02-23 2011-08-25 Calnan Barry D Segmented Downhole Tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482889A (en) * 1967-09-18 1969-12-09 Driltrol Stabilizers for drilling strings
US4877092A (en) * 1988-04-15 1989-10-31 Teleco Oilfield Services Inc. Near bit offset stabilizer
WO1991000411A1 (en) * 1989-06-29 1991-01-10 The Red Baron (Oil Tools Rental) Limited Drill string component
US5261498A (en) * 1989-06-29 1993-11-16 The Red Baron (Oil Tools Rental) Limited Drill string component
US5204483A (en) * 1992-04-02 1993-04-20 Tellechea Albert F Gun barrel cleaning device
US20100181064A1 (en) * 2007-07-06 2010-07-22 Wellbore Energy Solutions, Llc Multi-Purpose Well Servicing Apparatus
US20110203852A1 (en) * 2010-02-23 2011-08-25 Calnan Barry D Segmented Downhole Tool

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