US1830625A - Drill for oil and gas wells - Google Patents

Drill for oil and gas wells Download PDF

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Publication number
US1830625A
US1830625A US168752A US16875227A US1830625A US 1830625 A US1830625 A US 1830625A US 168752 A US168752 A US 168752A US 16875227 A US16875227 A US 16875227A US 1830625 A US1830625 A US 1830625A
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Prior art keywords
bits
drill
head
oil
gas wells
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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
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US168752A
Inventor
George W Schrock
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George W Schrock
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits

Description

Nov. 3, 1931. 5, w, s o 1,830,625

DRILL FOR OIL AND GAS WELLS Filed Feb. 16, 1927 ATTORNEY Patented Nova? 1931 (moms w. scnaocx, or mnoao,.1nmo

mm. ton on. mass wELLs Application filed Iebr'uary .18, 1927. Serial No. 168,752.

This invention relates to drills and more particularly to cable rock drills used in bormgoil and gas wells.

i A primary object of the invention is to provide a drill of this character having a one ,piece head provided with aplurality of bits or cutters of different types so arranged as to effectively cut across each others path through the rock and so produce a round hole 10 without necessitating the use of other tools,

and which'cutters are adapted to be changed fre uently to provide for drilling a hole of uniiorm' size throughout. 7 Another'object' is to so mount the hits or 16 cutters in the head-that they may be readily .removed by the operator for sharpening or replacing when dulled, thus saving expense vention,

Fig. 2 is a similar view taken in a plane at 80 right angles to Fig.1,

. ig. 3 is a transverse vertical section through the head of the drill with the shank broken off for convenience in, illustration,

Fig. 4 is a bottom plan view of the tool with the bits in place, and

Fig. 5 is a similar view of the head with the bits removed.

In the embodiment illustrated a solid substantially cone-shaped head 1 is shown which merges at its apex into a shank or stem 2 provided at its upper end with a reduced threaded terminal 3 for'connection with the drilling apparatus. A plumb or guide r' 4 is mounted on the upper end of the shan 2 being seated on a shoulder 40 formed at the inner end of a reduced portion 2a ofthe shank. This plumb ring is secured in tion by a set screw' 5 passin radially em ,n through and engaging the each provided with an angular portion 17 to with a plurality of longitudinally extending peripherally spaced sand grooves 6 between which in the head are formed sockets 8 arranged obliquely as shown in Fig. 3 to receive the threaded shanks 14 of the cutters or bits, four of which are here shown and which have said shanks extended-in longitudinal alinement with the bodies of the cutters. A central s0cket7 is larger in size than those and is designed to receive a master cutter 9 which is made in the form of a bull bit, with a reduced threaded rear end for insertion in the socket 7. The sockets 8 are inclined upwardly and inwardly as shown in Fig. 3 so that the bits 10, 11, 12 and 13 which are mounted therein are inclined outwardly at their cutting edges to provide a clearance for the four cutterswhile drilling. This arrangement of the bits 8 and their sockets adapts the cutting strain to beborne by the head 1 and not at the 70 'junctionz giif the bits with the head such as would-be' liable to shear off the bits at this point, These cutters are arranged in pairs, those of each pair being diametrically oppo site each other two of said'cutters being 0111881 cutters and two bull bits. The cutters or bits are held in their sockets by set screws 16 as shown clearly. in Fig. 3 and are preferably receive a wrench for screwing them into and out of the sockets. The two chisel bits 10 and '11 are set opposite each other with cutter edges on two sides of the head and the two bull bits 12 and 13 are set with their cutting corner edges from the center to the outer edge of the drill base on two sides as is shown clearly in Figs. 1 and 4 while the master drill, bit 9 is set with the cutting corner edges to the center of the two chisel bits so that all of the rock. will be cut out since these bits cut across each others paths thereby insuring the formation of a round hole without necessitating the use of any other tools.

The master bit 9 has mounted in the riphery' thereof four screws arranged at 'ametrically zgiposite points so' that the heads 18 thereof 1 thespa'c'es between the master bit and the other bits and said heads are made I K I concave on their outer faces to fit the shanks The outer face of the head 1 is provided of -the cutting. bits as shown at 19 in Fig. i-

2 l f I 1,880,095

These screws 18 which are threaded into the master bit 9 operate to hold thebits 10 '11, 12 and 13 rigidly in cutting osition and t us insure the o eration of the its in unison.

5 From e above description, it will be obvious that this drill has its head and shankconstructed from a single piece whereby strength and durability are, provided and the conesha ed or beveled construction of the head m wi the bit receiving sockets arranged at an incline provide a clearance for the bits while mg. Without further description, it is thought that thefeatures and advantages of the in-,- 15 vention will be readily apparent to those skilledin the art, and itwill, of course, be understood that changes in the form, proportion and minor details of construction may be resorted to, without departing from the 30 spirit of the invention or its scope as claimed.

I claim A multi-bit drill comprising a substantially cone-shaped head having a shank extending from the apex thereof, sand grooves arranged 18 in the outside walls of said head, a central socket opening through the base of the head and surroundedby a plurality of concentrically arran d sockets, the central socket being lar er t an the others, a master drill'bit a6 inserte in said central socket and pairs of chisel and bull bits mounted in the other sockets, these bits being arranged inpairs diametrically opposite each other, and locking elements arranged between said master 35 bit and the ad'acent bits.

. iirEORGE W. SCHROCK.

US168752A 1927-02-16 1927-02-16 Drill for oil and gas wells Expired - Lifetime US1830625A (en)

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US168752A US1830625A (en) 1927-02-16 1927-02-16 Drill for oil and gas wells

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US1830625A true US1830625A (en) 1931-11-03

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Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689109A (en) * 1948-04-30 1954-09-14 Joy Mfg Co Rock drill bit
US3075593A (en) * 1959-11-18 1963-01-29 Timken Roller Bearing Co Drill bit
US20050133274A1 (en) * 2002-12-30 2005-06-23 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US20050257933A1 (en) * 2004-05-20 2005-11-24 Bernd-Georg Pietras Casing running head
US7073598B2 (en) 2001-05-17 2006-07-11 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US7083005B2 (en) 2002-12-13 2006-08-01 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
US7090021B2 (en) 1998-08-24 2006-08-15 Bernd-Georg Pietras Apparatus for connecting tublars using a top drive
US7090023B2 (en) 2002-10-11 2006-08-15 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
US7093675B2 (en) 2000-08-01 2006-08-22 Weatherford/Lamb, Inc. Drilling method
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7117957B2 (en) 1998-12-22 2006-10-10 Weatherford/Lamb, Inc. Methods for drilling and lining a wellbore
US7128161B2 (en) 1998-12-24 2006-10-31 Weatherford/Lamb, Inc. Apparatus and methods for facilitating the connection of tubulars using a top drive
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
US7137454B2 (en) 1998-07-22 2006-11-21 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US7147068B2 (en) 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7165634B2 (en) 1994-10-14 2007-01-23 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7188687B2 (en) 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
US7191840B2 (en) 2003-03-05 2007-03-20 Weatherford/Lamb, Inc. Casing running and drilling system
US7213656B2 (en) 1998-12-24 2007-05-08 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US7216727B2 (en) 1999-12-22 2007-05-15 Weatherford/Lamb, Inc. Drilling bit for drilling while running casing
US7219744B2 (en) 1998-08-24 2007-05-22 Weatherford/Lamb, Inc. Method and apparatus for connecting tubulars using a top drive
US7228901B2 (en) 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7234542B2 (en) 1994-10-14 2007-06-26 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7264067B2 (en) 2003-10-03 2007-09-04 Weatherford/Lamb, Inc. Method of drilling and completing multiple wellbores inside a single caisson
US7303022B2 (en) 2002-10-11 2007-12-04 Weatherford/Lamb, Inc. Wired casing
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7360594B2 (en) 2003-03-05 2008-04-22 Weatherford/Lamb, Inc. Drilling with casing latch
US7370707B2 (en) 2003-04-04 2008-05-13 Weatherford/Lamb, Inc. Method and apparatus for handling wellbore tubulars
US7413020B2 (en) 2003-03-05 2008-08-19 Weatherford/Lamb, Inc. Full bore lined wellbores
US7503397B2 (en) 2004-07-30 2009-03-17 Weatherford/Lamb, Inc. Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
US7509722B2 (en) 1997-09-02 2009-03-31 Weatherford/Lamb, Inc. Positioning and spinning device
US7617866B2 (en) 1998-08-24 2009-11-17 Weatherford/Lamb, Inc. Methods and apparatus for connecting tubulars using a top drive
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689109A (en) * 1948-04-30 1954-09-14 Joy Mfg Co Rock drill bit
US3075593A (en) * 1959-11-18 1963-01-29 Timken Roller Bearing Co Drill bit
US7165634B2 (en) 1994-10-14 2007-01-23 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7147068B2 (en) 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7234542B2 (en) 1994-10-14 2007-06-26 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7228901B2 (en) 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US7509722B2 (en) 1997-09-02 2009-03-31 Weatherford/Lamb, Inc. Positioning and spinning device
US7137454B2 (en) 1998-07-22 2006-11-21 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US7617866B2 (en) 1998-08-24 2009-11-17 Weatherford/Lamb, Inc. Methods and apparatus for connecting tubulars using a top drive
US7090021B2 (en) 1998-08-24 2006-08-15 Bernd-Georg Pietras Apparatus for connecting tublars using a top drive
US7219744B2 (en) 1998-08-24 2007-05-22 Weatherford/Lamb, Inc. Method and apparatus for connecting tubulars using a top drive
US7117957B2 (en) 1998-12-22 2006-10-10 Weatherford/Lamb, Inc. Methods for drilling and lining a wellbore
US7188687B2 (en) 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
US7213656B2 (en) 1998-12-24 2007-05-08 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US7128161B2 (en) 1998-12-24 2006-10-31 Weatherford/Lamb, Inc. Apparatus and methods for facilitating the connection of tubulars using a top drive
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7216727B2 (en) 1999-12-22 2007-05-15 Weatherford/Lamb, Inc. Drilling bit for drilling while running casing
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
US7093675B2 (en) 2000-08-01 2006-08-22 Weatherford/Lamb, Inc. Drilling method
US7073598B2 (en) 2001-05-17 2006-07-11 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US7303022B2 (en) 2002-10-11 2007-12-04 Weatherford/Lamb, Inc. Wired casing
US7090023B2 (en) 2002-10-11 2006-08-15 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7083005B2 (en) 2002-12-13 2006-08-01 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
US20050133274A1 (en) * 2002-12-30 2005-06-23 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US7131505B2 (en) * 2002-12-30 2006-11-07 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
NO336084B1 (en) * 2002-12-30 2015-05-04 Weatherford Lamb Borkronesammenstilling placers concentric casing
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7413020B2 (en) 2003-03-05 2008-08-19 Weatherford/Lamb, Inc. Full bore lined wellbores
US7191840B2 (en) 2003-03-05 2007-03-20 Weatherford/Lamb, Inc. Casing running and drilling system
US7360594B2 (en) 2003-03-05 2008-04-22 Weatherford/Lamb, Inc. Drilling with casing latch
US7370707B2 (en) 2003-04-04 2008-05-13 Weatherford/Lamb, Inc. Method and apparatus for handling wellbore tubulars
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7264067B2 (en) 2003-10-03 2007-09-04 Weatherford/Lamb, Inc. Method of drilling and completing multiple wellbores inside a single caisson
US20050257933A1 (en) * 2004-05-20 2005-11-24 Bernd-Georg Pietras Casing running head
US7284617B2 (en) 2004-05-20 2007-10-23 Weatherford/Lamb, Inc. Casing running head
US7503397B2 (en) 2004-07-30 2009-03-17 Weatherford/Lamb, Inc. Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing

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