Hydraulic Shock Sub Type YJ
group nameDownhole Tools
-
Min Order1 piece
modelYJ
-
update timeThu, 16 Aug 2012 23:56:12 GMT
Paramtents
FUNCTION reduce vibrations
CERTIFICATE API 7-1
Packging & Delivery
Min Order1 piece
Briefing
Detailed
The Hydraulic Shock Sub type YJ is fully hydraulic and is used for reducing vibrations caused by hard formation drilling and keeping the drill bit firmly on the bottom, so that it helps to reduce drill string connection fatigue and prolong drill string life.
Specification Series and Performance Parameters
Type | O.D. mm (in.) | Water Hole mm (in.) | Max. Working Stroke mm (in.)
| Connection API | Working Temperature 0C |
Max. Drilling Pressure kN (Lbf) |
Max. Tensile Load kN (Lbf) | Max. Working Torque kN· m (Lbf· m) |
YJ121 | 121 (4 3/4) | 38 (1 1/2) | 100 (3 15/16) | 3 1/2REG | -40～+150 | 260 (58500) | 980 (220500) | 10 (2250) |
YJ178Ⅲ | 178 (7) | 57 (2 1/4) | 125 (4 15/16) | NC50 | -40～+150 | 390 (87750) | 1470 (330750) | 14.7 (3307.5) |
YJ203Ⅲ | 203 (8) | 68 (2 11/16) | 140 (5 1/2) | 6 5/8REG | -40～+150 | 490 (110250) | 1960 (441000) | 19.6 (4410) |
YJ229Ⅲ | 229 (9) | 70 (2 3/4) | 140 (5 1/2) | 7 5/8REG | -40～+150 | 540 (121500) | 1960 (441000) | 19.6 (4410) |
