Eric S Pope

US Patent:

7681669, Mar 23, 2010

Filed:

Jan 17, 2006

Appl. No.:

11/333969

Inventors:

Randon S. Cannon - Springville UT, US
Greg C. Topham - Spanish Fork UT, US
Eric C. Pope - Provo UT, US

Assignee:

US Synthetic Corporation - Orem UT

International Classification:

E21B 10/567
E21B 10/16

US Classification:

175374, 175434

Abstract:

Polycrystalline diamond inserts are disclosed. For example, a polycrystalline diamond insert may comprise a polycrystalline diamond layer affixed to a substrate at an interface. In addition the polycrystalline diamond layer may comprise: an arcuate exterior surface, a first region including a catalyst and a second region from which the catalyst is at least partially removed. Further, the arcuate exterior surface may be defined by a portion of the first region including the catalyst and a portion of the second region from which the catalyst is at least partially removed. In another embodiment, the polycrystalline diamond layer may include a convex exterior surface for contacting a subterranean formation, wherein at least a portion of a catalyst used for forming the polycrystalline diamond layer is removed from a region of the polycrystalline diamond layer. Subterranean drilling tools (e. g. , percussive drill bits) including at least one polycrystalline diamond insert are disclosed.

US Patent:

7874383, Jan 25, 2011

Filed:

Feb 3, 2010

Appl. No.:

12/699760

Inventors:

Randon S. Cannon - Springville UT, US
Greg C. Topham - Spanish Fork UT, US
Eric C. Pope - Provo UT, US

Assignee:

US Synthetic Corporation - Orem UT

International Classification:

E21B 10/567
E21B 10/16

US Classification:

175374, 175434

Abstract:

Polycrystalline diamond inserts are disclosed. For example, a polycrystalline diamond insert may comprise a polycrystalline diamond layer affixed to a substrate at an interface. In addition the polycrystalline diamond layer may comprise: an arcuate exterior surface, a first region including a catalyst and a second region from which the catalyst is at least partially removed. Further, the arcuate exterior surface may be defined by a portion of the first region including the catalyst and a portion of the second region from which the catalyst is at least partially removed. In another embodiment, the polycrystalline diamond layer may include a convex exterior surface for contacting a subterranean formation, wherein at least a portion of a catalyst used for forming the polycrystalline diamond layer is removed from a region of the polycrystalline diamond layer. Subterranean drilling tools (e. g. , percussive drill bits) including at least one polycrystalline diamond insert are disclosed.

US Patent:

8272459, Sep 25, 2012

Filed:

Oct 28, 2008

Appl. No.:

12/259901

Inventors:

Eric C. Pope - Provo UT, US

Assignee:

US Synthetic Corporation - Orem UT

International Classification:

E21B 10/46

US Classification:

175430, 175374, 175426, 175431, 175432

Abstract:

Superabrasive inserts are disclosed. More particularly, a superabrasive insert may comprise a superabrasive layer bonded to a substrate at an interface. Further, the superabrasive layer may include a central substantially planar surface, a peripheral side surface, and an arcuate peripheral surface extending between the central substantially planar surface and the peripheral side surface. In one embodiment, the arcuate peripheral surface may comprise a lateral extent and an extension depth, wherein a ratio of the lateral extent to the extension depth is at least about 1. 5. In another embodiment, an arcuate peripheral surface may comprise a substantially circular arc, wherein the substantially planar surface is tangent to the substantially circular arc and a tangent reference line to the substantially circular arc forms an angle of at least about 10 with the peripheral side surface. Subterranean drilling tools (e. g. , drill bits) including at least one superabrasive insert are disclosed.

US Patent:

8505655, Aug 13, 2013

Filed:

Sep 7, 2012

Appl. No.:

13/606318

Inventors:

Eric C. Pope - Provo UT, US

Assignee:

US Synthetic Corporation - Orem UT

International Classification:

E21B 10/46

US Classification:

175430, 175374, 175426, 175431, 175432

Abstract:

Superabrasive inserts are disclosed. More particularly, a superabrasive insert may comprise a superabrasive layer bonded to a substrate at an interface. Further, the superabrasive layer may include a central substantially planar surface, a peripheral side surface, and an arcuate peripheral surface extending between the central substantially planar surface and the peripheral side surface. In one embodiment, the arcuate peripheral surface may comprise a lateral extent and an extension depth, wherein a ratio of the lateral extent to the extension depth is at least about 1. 5. In another embodiment, an arcuate peripheral surface may comprise a substantially circular arc, wherein the substantially planar surface is tangent to the substantially circular arc and a tangent reference line to the substantially circular arc forms an angle of at least about 10 with the peripheral side surface. Subterranean drilling tools (e. g. , drill bits) including at least one superabrasive insert are disclosed.

US Patent:

20060157286, Jul 20, 2006

Filed:

Jan 17, 2006

Appl. No.:

11/334214

Inventors:

Eric Pope - Provo UT, US

International Classification:

E21B 10/36

US Classification:

175374000, 175426000

Abstract:

Superabrasive inserts are disclosed. More particularly, a superabrasive insert may comprise a superabrasive layer bonded to a substrate at an interface. Further, the superabrasive layer may include a central substantially planar surface, a peripheral side surface, and an arcuate peripheral surface extending between the central substantially planar surface and the peripheral side surface. In one embodiment, the arcuate peripheral surface may comprise a lateral extent and an extension depth, wherein a ratio of the lateral extent to the extension depth is at least about 1.5. In another embodiment, an arcuate peripheral surface may comprise a substantially circular arc, wherein the substantially planar surface is tangent to the substantially circular arc and a tangent reference line to the substantially circular arc forms an angle of at least about 10 with the peripheral side surface. Subterranean drilling tools (e.g., drill bits) including at least one superabrasive insert are disclosed.