APPARATUS AND METHODS FOR HIGH PRESSURE LEACHING OF POLYCRYSTALLINE DIAMOND CUTTER ELEMENTS
摘要
A method for leaching a PCD table for a cutter element includes (a) positioning a PCD table within a leaching chamber. The method also includes (b) submerging the PCD table in an acid within the leaching chamber. In addition, the method includes (c) sealing the leaching chamber. Further, the method includes (d) increasing the pressure within the leaching chamber to a pressure greater than or equal to 20,000 psi after (c).
申请公布号
WO2014106163(A2)
申请公布日期
2014.07.03
申请号
WO2013US78247
申请日期
2013.12.30
申请人
NATIONAL OILWELL VARCO, L.P.;GILLEYLEN, RUSS;ZHAN, GUODONG;DONALD, SEAN;GHANSYAM, HARESH;STREATER, JAMES R.;PARKER, ANONDRIA M.
发明人
GILLEYLEN, RUSS;ZHAN, GUODONG;DONALD, SEAN;GHANSYAM, HARESH;STREATER, JAMES R.;PARKER, ANONDRIA M.