发明名称 |
Fixed cutter drill bit for abrasive applications |
摘要 |
The invention provides a fixed cutter drill bit for drilling through unconsolidated, highly abrasive formations. The bit includes a bit body having a cutting face and a side portion. The bit body comprising carbide matrix material. A plurality of blades azimuthally spaced about the cutting face and a plurality of cutters disposed along the blades. At least one gage pad is disposed along a side of the bit body and includes wear resistant gage elements formed of a material more wear resistant than the matrix material forming a portion of the gage pad. The wear resistant elements have a rounded surface and are embedded in gage pad material proximal a leading edge of the gage pad to provide a rounded wear-resistant edge or surface proximal the leading edge.
|
申请公布号 |
US2007205023(A1) |
申请公布日期 |
2007.09.06 |
申请号 |
US20060367097 |
申请日期 |
2006.03.03 |
申请人 |
HOFFMASTER CARL;ALSUP SHELTON W;AZAR MICHAEL G;OLDHAM THOMAS W;OLIVER STUART R;ISNOR SIDNEY J |
发明人 |
HOFFMASTER CARL;ALSUP SHELTON W.;AZAR MICHAEL G.;OLDHAM THOMAS W.;OLIVER STUART R.;ISNOR SIDNEY J. |
分类号 |
E21B10/62 |
主分类号 |
E21B10/62 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|