GB897893A - Combination drill bit - Google Patents

Combination drill bit

Info

Publication number
GB897893A
GB897893A GB8898/60A GB889860A GB897893A GB 897893 A GB897893 A GB 897893A GB 8898/60 A GB8898/60 A GB 8898/60A GB 889860 A GB889860 A GB 889860A GB 897893 A GB897893 A GB 897893A
Authority
GB
United Kingdom
Prior art keywords
shoe
cutter
plug
drilling fluid
formations
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
Application number
GB8898/60A
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.)
Jersey Production Research Co
Original Assignee
Jersey Production Research 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 Jersey Production Research Co filed Critical Jersey Production Research Co
Publication of GB897893A publication Critical patent/GB897893A/en
Expired legal-status Critical Current

Links

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • 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
    • E21B10/08—Roller bits
    • E21B10/14—Roller bits combined with non-rolling cutters other than of leading-portion 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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

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)

Abstract

897,893. Boring earth. JERSEY PRODUCTION RESEARCH CO. March 14, 1960 [Aug. 10, 1959], No. 8898/60. Class 85. A rotary bit comprises a rotary support member 25, a blade-like cutter 20 extending axially from the member, and an axially slidable shoe 22 adapted to support and protect the cutter and having a cutting part 41. The shoe is slidable on the member which has a passage 28 leading drilling fluid to an annulus 30 which is connected by ducts 186 to grooves 42 in the bottom of the shoe. During drilling of "soft" formations the cutter protrudes below the shoe. When drilling "hard" formations the pressure of the drilling fluid is increased so that the cutter is shielded by the bottom of the shoe which cuts the formation. The cutter and shoe have splines 46, 47 inclined to the axis of the bit so that downward pressure on the cutter tends to force it outwards to compensate for cutter wear. In a modification (Fig. 7 not shown) the member carries three equally spaced cutters each engaging a slot in the shoe. In the construction shown in Fig. 13, the member 84 is tubular and carries a cutter 86, the upper part of the shoe 85 sliding within the member. The cutting part 111 of the shoe which may be constituted by rollers is supplied with drilling fluid through a bore 93. The pressure on the shoe may be controlled by removing a plug 92 from the bore or by substituting a plug having a different throat diameter. In the further modification shown in Fig. 19 the plug 127 is removed by an overshot 162 when "soft" formations are drilled by the cutter 124. As shown in Fig. 24 a plug 167 may be provided the plug being removed from the bore by coupling it to a stopper 172 and reversing the circulation of drilling fluid. In yet another modification (Fig. 25 not shown) a spring loaded valve prevents flow to or from the annulus so that the cutter and shoe are not relatively movable when drilling fluid is not flowing. Specification 867,672 is referred to.
GB8898/60A 1959-08-10 1960-03-14 Combination drill bit Expired GB897893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US832539A US3066749A (en) 1959-08-10 1959-08-10 Combination drill bit

Publications (1)

Publication Number Publication Date
GB897893A true GB897893A (en) 1962-05-30

Family

ID=25261943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8898/60A Expired GB897893A (en) 1959-08-10 1960-03-14 Combination drill bit

Country Status (2)

Country Link
US (1) US3066749A (en)
GB (1) GB897893A (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765493A (en) * 1971-12-01 1973-10-16 E Rosar Dual bit drilling tool
US3847236A (en) * 1973-06-28 1974-11-12 J Coalson Drill bit
US4006788A (en) * 1975-06-11 1977-02-08 Smith International, Inc. Diamond cutter rock bit with penetration limiting
US4285409A (en) * 1979-06-28 1981-08-25 Smith International, Inc. Two cone bit with extended diamond cutters
US4343371A (en) * 1980-04-28 1982-08-10 Smith International, Inc. Hybrid rock bit
US5887668A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc. Wellbore milling-- drilling
US5887655A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc Wellbore milling and drilling
US5979571A (en) * 1996-09-27 1999-11-09 Baker Hughes Incorporated Combination milling tool and drill bit
US6131675A (en) * 1998-09-08 2000-10-17 Baker Hughes Incorporated Combination mill and drill bit
AU2002302794B2 (en) * 2001-06-05 2008-08-07 Andergauge Limited Drilling apparatus
US7927189B2 (en) * 2004-08-16 2011-04-19 United Technologies Corporation Superabrasive tool
US20100025119A1 (en) * 2007-04-05 2010-02-04 Baker Hughes Incorporated Hybrid drill bit and method of using tsp or mosaic cutters on a hybrid bit
US8678111B2 (en) 2007-11-16 2014-03-25 Baker Hughes Incorporated Hybrid drill bit and design method
US20120205160A1 (en) 2011-02-11 2012-08-16 Baker Hughes Incorporated System and method for leg retention on hybrid bits
US20090272582A1 (en) * 2008-05-02 2009-11-05 Baker Hughes Incorporated Modular hybrid drill bit
US8141664B2 (en) * 2009-03-03 2012-03-27 Baker Hughes Incorporated Hybrid drill bit with high bearing pin angles
US8056651B2 (en) * 2009-04-28 2011-11-15 Baker Hughes Incorporated Adaptive control concept for hybrid PDC/roller cone bits
US8459378B2 (en) 2009-05-13 2013-06-11 Baker Hughes Incorporated Hybrid drill bit
US8157026B2 (en) 2009-06-18 2012-04-17 Baker Hughes Incorporated Hybrid bit with variable exposure
CA2773897A1 (en) 2009-09-16 2011-03-24 Baker Hughes Incorporated External, divorced pdc bearing assemblies for hybrid drill bits
US8347989B2 (en) * 2009-10-06 2013-01-08 Baker Hughes Incorporated Hole opener with hybrid reaming section and method of making
US8448724B2 (en) * 2009-10-06 2013-05-28 Baker Hughes Incorporated Hole opener with hybrid reaming section
US8950514B2 (en) 2010-06-29 2015-02-10 Baker Hughes Incorporated Drill bits with anti-tracking features
US8978786B2 (en) 2010-11-04 2015-03-17 Baker Hughes Incorporated System and method for adjusting roller cone profile on hybrid bit
US9782857B2 (en) 2011-02-11 2017-10-10 Baker Hughes Incorporated Hybrid drill bit having increased service life
CA2855947C (en) 2011-11-15 2016-12-20 Baker Hughes Incorporated Hybrid drill bits having increased drilling efficiency
US10704330B2 (en) 2013-12-05 2020-07-07 National Oilwell DHT, L.P. Drilling systems and hybrid drill bits for drilling in a subterranean formation and methods relating thereto
RU2689465C2 (en) 2014-05-23 2019-05-28 Бейкер Хьюз Инкорпорейтед Combined drill bit with mechanical fastening of rock drilling unit elements
US11428050B2 (en) 2014-10-20 2022-08-30 Baker Hughes Holdings Llc Reverse circulation hybrid bit
WO2017014730A1 (en) 2015-07-17 2017-01-26 Halliburton Energy Services, Inc. Hybrid drill bit with counter-rotation cutters in center
CN105952384B (en) * 2016-06-23 2018-04-24 大同煤矿集团有限责任公司 Hydrofracturing Orthogonal Composite twolip slotting drill

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1394769A (en) * 1920-05-18 1921-10-25 C E Reed Drill-head for oil-wells
US1456350A (en) * 1922-01-09 1923-05-22 Frederick A Widmer Collapsible rotary well drill
US1855330A (en) * 1928-09-29 1932-04-26 Caspar Leonid Zublin Method of improving the wear-resistant qualities of alpha body
US1863928A (en) * 1931-05-09 1932-06-21 James A Macdonell Combination percussion and rotary drill
US1938412A (en) * 1932-01-08 1933-12-05 Globe Oil Tools Co Well drilling tool
US2198849A (en) * 1938-06-09 1940-04-30 Reuben L Waxler Drill
US2684835A (en) * 1950-07-26 1954-07-27 Standard Oil Dev Co Apparatus for drilling well boreholes
US2740651A (en) * 1951-03-10 1956-04-03 Exxon Research Engineering Co Resiliently coupled drill bit
US2693938A (en) * 1952-08-01 1954-11-09 Harry E Roberts Drilling bit
US2777523A (en) * 1953-09-24 1957-01-15 Cicero C Brown Removable drill pipe float valve

Also Published As

Publication number Publication date
US3066749A (en) 1962-12-04

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