FIELD: drilling.
SUBSTANCE: invention relates to the field of creating a drilling rock cutting tool for rotary drilling of wells with coring. The diamond drill bit contains a body with a matrix divided into diamond-containing sectors by flushing end channels. In this case, the end channels are made with alternating interconnection with vertical outer and inner side channels and only with vertical inner side channels, while the depth of the vertical inner side channels is 2/ 3-1/ 2 of the depth of the vertical outer side channels.
EFFECT: invention is aimed at increasing the resource of the drilling rock cutting tool during rotary drilling with coring.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DIAMOND DRILL BIT | 1994 |
|
RU2087665C1 |
| CROWN BIT | 1991 |
|
RU2015292C1 |
| DIAMOND PILOT DRILL BIT | 2011 |
|
RU2493351C2 |
| DIAMOND DRILLING BIT | 2003 |
|
RU2257458C2 |
| DIAMOND DRILL BIT | 1999 |
|
RU2170321C2 |
| DIAMOND ROCK-BREAKING TOOL | 0 |
|
SU1596062A1 |
| DIAMOND CROWN BIT | 0 |
|
SU1828902A1 |
| DIAMOND CORE-DRILLING BIT FOR DRILLING WITH BUBBLE AERATION | 2007 |
|
RU2373371C2 |
| DIAMOND DRILL BIT | 2007 |
|
RU2373370C2 |
| DIAMOND CROWN BIT | 0 |
|
SU1716073A1 |
