US Patent No: 7,726,415

Number of patents in Portfolio can not be more than 2000

Fixed cutter drill bit

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The fixed cutter drill bit disclosed utilizes a unique piloting section and reaming section carefully designed to impart several specific operational advantages. In the piloting section, cutting structures have been arranged so as to create offsetting cutting forces that result in a net zero imbalance during operation. Furthermore, the piloting section utilizes carefully placed shock studs which aid in protecting the primary cutting structure. In addition, the location of the fluid supply nozzles on the body of the reamer section serves to indicate the occurrence of a catastrophic cutting structure failure below the pilot gage.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
OTS INTERNATIONAL, INC.CONROE, TX1

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keith, Carl W Houston, US 23 872
Strenk,, Jr Gerald A Spring, US 1 5
Tipton, Robert George Conroe, US 1 5

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HALLIBURTON ENERGY SERVICES, INC. (4)
5,090,492 Drill bit with vibration stabilizers 63 1991
* 5,265,685 Drill bit with improved insert cutter pattern 49 1991
5,238,075 Drill bit with improved cutter sizing pattern 39 1992
5,346,025 Drill bit with improved insert cutter pattern and method of drilling 25 1993
 
EASTMAN CHRISTENSEN COMPANY (1)
* 4,515,227 Nozzle placement in a diamond rotating bit including a pilot bit 34 1983
 
SMITH INTERNATIONAL, INC. (14)
5,582,261 Drill bit having enhanced cutting structure and stabilizing features 50 1994
5,549,171 Drill bit with performance-improving cutting structure 87 1994
5,592,996 Drill bit having improved cutting structure with varying diamond density 19 1994
5,551,522 Drill bit having stability enhancing cutting structure 40 1994
5,607,024 Stability enhanced drill bit and cutting structure having zones of varying wear resistance 125 1995
5,607,025 Drill bit and cutting structure having enhanced placement and sizing of cutters for improved bit stabilization 38 1995
5,737,980 Brazing receptacle for improved PCD cutter retention 17 1996
5,906,246 PDC cutter element having improved substrate configuration 30 1996
6,164,394 Drill bit with rows of cutters mounted to present a serrated cutting edge 41 1996
5,937,958 Drill bits with predictable walk tendencies 51 1997
6,148,937 PDC cutter element having improved substrate configuration 14 1997
6,918,455 Drill bit with large inserts 5 1998
6,564,886 Drill bit with rows of cutters mounted to present a serrated cutting edge 26 2000
6,729,420 Multi profile performance enhancing centric bit and method of bit design 94 2002
 
VAREL INTERNATIONAL, INC. (1)
6,568,492 Drag-type casing mill/drill bit 35 2001
 
VAREL INTERNATIONAL IND., L.P. (1)
6,904,983 Low-contact area cutting element 22 2003
 
Varel International, L.P. (1)
6,926,099 Drill out bi-center bit and method for using same 15 2003
 
BAKER HUGHES INCORPORATED (2)
* 6,408,958 Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped 92 2000
* 6,659,199 Bearing elements for drill bits, drill bits so equipped, and method of drilling 26 2001
 
Dresser Industries, Inc. (2)
4,911,254 Polycrystalline diamond cutting element with mating recess 19 1989
5,099,929 Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes 44 1990
 
Team Engineering and Manufacturing, Inc. (1)
* 4,618,010 Hole opener 31 1986
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HALLIBURTON ENERGY SERVICES, INC. (1)
8,899,357 Multilevel force balanced downhole drilling tools and methods 0 2009
 
SMITH INTERNATIONAL, INC. (5)
* 9,016,407 Drill bit cutting structure and methods to maximize depth-of-cut for weight on bit applied 0 2008
* 2009/0145,669 Drill Bit Cutting Structure and Methods to Maximize Depth-0f-Cut For Weight on Bit Applied 16 2008
8,100,202 Fixed cutter bit with backup cutter elements on secondary blades 7 2009
* 2009/0266,619 Fixed Cutter Bit With Backup Cutter Elements on Secondary Blades 14 2009
* 2013/0292,186 GAGE CUTTER PROTECTION FOR DRILLING BITS 0 2013
 
ULTERRA DRILLING TECHNOLOGIES, L.P. (1)
9,038,752 Rotary drag bit 0 2011
 
VAREL INTERNATIONAL IND., L.P. (2)
* 8,915,166 Single mold milling process 0 2008
* 2009/0025,984 SINGLE MOLD MILLING PROCESS FOR FABRICATION OF ROTARY BITS TO INCLUDE NECESSARY FEATURES UTILIZED FOR FABRICATION IN SAID PROCESS 0 2008
* Cited By Examiner

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