Country
Full text data for US and EP
Status
Type
Filing Date
Publication Date
Inventor
Assignee
Click to expand
IPC
No.
Publication Number
Title
Publication/Patent Number Publication/Patent Number
Publication date Publication date
Application number Application number
Filing date Filing date
Inventor Inventor
Assignee Assignee
IPC IPC
1
CA2852007C
Publication/Patent Number: CA2852007C
Publication date: 2018-01-16
Application number: 2852007
Filing date: 2012-10-10
Inventor: Sreshta, Harold A  
Abstract: Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second preinfiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant. Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second preinfiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a ...more ...less
3
BR112014008910A2
Publication/Patent Number: BR112014008910A2
Publication date: 2017-05-09
Application number: 112014008910
Filing date: 2012-10-10
Inventor: Harold, A Sreshta  
5
GB2517390B
Publication/Patent Number: GB2517390B
Publication date: 2017-07-05
Application number: 201423150
Filing date: 2012-06-28
Abstract: A downhole tool comprises a body made of a metal or metal alloy. In addition
6
SG10201610907VA
Publication/Patent Number: SG10201610907VA
Publication date: 2017-02-27
Application number: 10201610907V
Filing date: 2012-06-28
IPC:
7
US9631435B2
Publication/Patent Number: US9631435B2
Publication date: 2017-04-25
Application number: 14/101,795
Filing date: 2013-12-10
Abstract: A fixed cutter drill bit for drilling a borehole in earthen formations includes a blank assembly and a matrix crown fixably mounted to the blank assembly. The blank assembly includes an annular mandrel and a plurality of elongate studs fixably coupled to the mandrel. The mandrel has a first end distal the crown and a second end engaging the crown. In addition, the mandrel includes a plurality of bores extending axially from the second end. Each elongate stud has a first end disposed within one of the bores and a second end disposed in the crown distal the mandrel. A fixed cutter drill bit for drilling a borehole in earthen formations includes a blank assembly and a matrix crown fixably mounted to the blank assembly. The blank assembly includes an annular mandrel and a plurality of elongate studs fixably coupled to the mandrel. The mandrel ...more ...less
8
GB2497225B
Publication/Patent Number: GB2497225B
Publication date: 2017-10-11
Application number: 201302629
Filing date: 2011-08-15
Abstract: A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition
9
US9604345B2
Publication/Patent Number: US9604345B2
Publication date: 2017-03-28
Application number: 14/070,003
Filing date: 2013-11-01
Abstract: A composite material and a methods of making and using the composite material, wherein the composite material provides improved wear resistance and fracture toughness to hard-facing and matrix materials for down hole drilling tools.
10
GB2510276B
Publication/Patent Number: GB2510276B
Publication date: 2016-05-11
Application number: 201406380
Filing date: 2012-10-10
Inventor: Sreshta, Harold  
Abstract: Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second preinfiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant. Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second preinfiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a ...more ...less
11
US9364936B2
Publication/Patent Number: US9364936B2
Publication date: 2016-06-14
Application number: 13/271,415
Filing date: 2011-10-12
Inventor: Sreshta, Harold A.  
Abstract: Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second pre-infiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant. Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second pre-infiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a ...more ...less
12
EP3080380A2
Publication/Patent Number: EP3080380A2
Publication date: 2016-10-19
Application number: 14838890.3
Filing date: 2014-12-23
13
CA2821074C
Publication/Patent Number: CA2821074C
Publication date: 2016-06-21
Application number: 2821074
Filing date: 2011-08-23
Abstract: A progressive cavity type motor or pump including a stator insert with a reinforcing agent dispersed in a manner to improve properties of the stator insert. The reinforcing agent may be a fiber
14
US9309767B2
Publication/Patent Number: US9309767B2
Publication date: 2016-04-12
Application number: 13/817,032
Filing date: 2011-08-15
Abstract: A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure. A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially ...more ...less
16
CA2814903C
Publication/Patent Number: CA2814903C
Publication date: 2016-01-19
Application number: 2814903
Filing date: 2011-10-25
Abstract: A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment (54) packed therein along at least one working surface thereof. The cutting element (50) may be formed by positioning the diamond table on the substrate (24) and bonding the diamond table onto the substrate (24) such that the polycrystalline diamond segment (54) is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate (24). A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached ...more ...less
17
CN103260799B
Publication/Patent Number: CN103260799B
Publication date: 2016-06-08
Application number: 201180061290
Filing date: 2011-10-25
Abstract: A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment (54) packed therein along at least one working surface thereof. The cutting element (50) may be formed by positioning the diamond table on the substrate (24) and bonding the diamond table onto the substrate (24) such that the polycrystalline diamond segment (54) is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate (24). A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached ...more ...less
18
US8997900B2
Publication/Patent Number: US8997900B2
Publication date: 2015-04-07
Application number: 12/968,590
Filing date: 2010-12-15
Abstract: A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C. A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at ...more ...less
19
US2015176335A1
Publication/Patent Number: US2015176335A1
Publication date: 2015-06-25
Application number: 14/632,910
Filing date: 2015-02-26
Abstract: A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C. A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at ...more ...less
20
US2015322719A1
Publication/Patent Number: US2015322719A1
Publication date: 2015-11-12
Application number: 14/410,475
Filing date: 2012-06-28
Abstract: A downhole tool comprises a body made of a metal or metal alloy. In addition, the downhole tool comprises a coating disposed on the body. The coating includes at least 75 vol % tungsten carbide having an average grain size less than 1.0 μm. The content of tungsten carbide in the coating with a grain size less than 0.5 μm is between 40 and 64 vol % of the coating. A downhole tool comprises a body made of a metal or metal alloy. In addition, the downhole tool comprises a coating disposed on the body. The coating includes at least 75 vol % tungsten carbide having an average grain size less than 1.0 μm. The content of tungsten carbide ...more ...less