Jonathan M Eve

US Patent:

20130340352, Dec 26, 2013

Filed:

Aug 26, 2013

Appl. No.:

13/975889

Inventors:

Jonathan Eve - Edmond OK, US

Assignee:

Eve Bit Sales, Inc. - Hinton OK

International Classification:

B01J 3/06
E21B 10/567

US Classification:

51309, 562584, 422263

Abstract:

Methods for removing, or leaching, cobalt or other diamond-diamond bonding catalysts from polycrystalline diamond compacts (PDCs) or other structures formed from polycrystalline diamond include leaching under conditions that simulate use of PDCs in a hot hole drilling environment. A leaching agent may be formulated, when used under appropriate conditions, to remove or substantially remove cobalt or another catalyst from polycrystalline diamond without dissolving, degrading or otherwise attacking a substrate that supports or carries the polycrystalline diamond. The leaching agent may include one or more components that mimick the chemicals or conditions to which a PDC would be exposed in a hot hole drilling environment. Polycrystalline diamond structures from which cobalt or another diamond-diamond bonding catalyst has been removed or substantially removed are also disclosed, as are systems for leaching cobalt or other diamond-diamond bonding catalysts from polycrystalline diamond.

US Patent:

20220412169, Dec 29, 2022

Filed:

Aug 23, 2022

Appl. No.:

17/894113

Inventors:

Jonathan M. Eve - Edmond OK, US

International Classification:

E21B 10/40
E21B 10/54
E21B 10/42
E21B 10/43
E21B 10/62
E21B 10/32

Abstract:

A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member of the percussion element may oscillate in a manner that enables a bottom end of the reciprocating member to repeatedly protrude from a bottom end of the earth-boring element and to be repeatedly withdrawn. A configuration of the earth-boring element may enable it to drill into and remove some materials from an earth formation, while the percussion element may enable the hybrid bit to drill into and remove difficult-to-drill materials, including abrasive materials and/or materials with high compressive forces, such as chert.

US Patent:

20200277824, Sep 3, 2020

Filed:

May 19, 2020

Appl. No.:

16/878367

Inventors:

Jonathan M. Eve - Edmond OK, US

International Classification:

E21B 10/40
E21B 10/54
E21B 10/42
E21B 10/43
E21B 10/62
E21B 10/32

Abstract:

A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member of the percussion element may oscillate in a manner that enables a bottom end of the reciprocating member to repeatedly protrude from a bottom end of the earth-boring element and to be repeatedly withdrawn. A configuration of the earth-boring element may enable it to drill into and remove some materials from an earth formation, while the percussion element may enable the hybrid bit to drill into and remove difficult-to-drill materials, including abrasive materials and/or materials with high compressive forces, such as chert.

US Patent:

20180258704, Sep 13, 2018

Filed:

Mar 7, 2018

Appl. No.:

15/915048

Inventors:

Jonathan M. Eve - Edmond OK, US

International Classification:

E21B 10/40
E21B 10/42

Abstract:

A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member of the percussion element may oscillate in a manner that enables a bottom end of the reciprocating member to repeatedly protrude from a bottom end of the earth-boring element and to be repeatedly withdrawn. A configuration of the earth-boring element may enable it to drill into and remove some materials from an earth formation, while the percussion element may enable the hybrid bit to drill into and remove difficult-to-drill materials, including abrasive materials and/or materials with high compressive forces, such as chert.