公开(公告)号：US20130340352A1

公开(公告)日：2013-12-26

申请号：US13975889

申请日：2013-08-26

Applicant: Eve Bit Sales, Inc.

Inventor： Jonathan Eve

IPC: B01J3/06 ,  E21B10/567

CPC classification number: B01J3/06 ,  B01J4/002 ,  B01J19/24 ,  B01J19/28 ,  E21B10/567

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.

Abstract translation: 从多晶金刚石压块（PDC）或由多晶金刚石形成的其他结构中除去或浸出钴或其他金刚石 - 金刚石结合催化剂的方法包括在模拟在热孔钻井环境中使用PDC的条件下浸出。 当在合适的条件下使用时，可以配制浸出剂以从多晶金刚石中去除或基本上除去钴或另一种催化剂，而不溶解，降解或以其他方式攻击支撑或携带多晶金刚石的基底。 浸出剂可以包括模仿PDC在热孔钻井环境中暴露的化学物质或条件的一种或多种组分。 钴或另一种金刚石 - 金刚石结合催化剂已被去除或基本除去的多晶金刚石结构也被公开，以及从多晶金刚石浸出钴或其它金刚石 - 金刚石结合催化剂的系统。

公开(公告)号：US09278325B2

公开(公告)日：2016-03-08

申请号：US13975889

申请日：2013-08-26

Applicant: Eve Bit Sales, Inc.

Inventor： Jonathan Eve

IPC: B24D11/00 ,  B24D3/02 ,  E21B10/36 ,  B01J3/06 ,  E21B10/567 ,  B01J19/24 ,  B01J19/28 ,  B01J4/00

CPC classification number: B01J3/06 ,  B01J4/002 ,  B01J19/24 ,  B01J19/28 ,  E21B10/567

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.

Abstract translation: 从多晶金刚石压块（PDC）或由多晶金刚石形成的其他结构中除去或浸出钴或其他金刚石 - 金刚石结合催化剂的方法包括在模拟在热孔钻井环境中使用PDC的条件下浸出。 当在合适的条件下使用时，可以配制浸出剂以从多晶金刚石中去除或基本上除去钴或另一种催化剂，而不溶解，降解或以其他方式攻击支撑或携带多晶金刚石的基底。 浸出剂可以包括模仿PDC在热孔钻井环境中暴露的化学物质或条件的一种或多种组分。 钴或另一种金刚石 - 金刚石结合催化剂已被去除或基本除去的多晶金刚石结构也被公开，以及从多晶金刚石浸出钴或其它金刚石 - 金刚石结合催化剂的系统。