Drilling stabilizer is an important tool to control hole deviation in petroleum and gas exploration drilling process. The types can be divided into drill string type and near bit type. When equipped high rigidity drill collar and bigger drill pressure, stabilizer can minimize hole deviation and avoid "dogleg"severity if being used properly.The stabilizer improve the quality of well and speed of drilling,which decrease the cost of drilling.
Integral Straight Blade Stabilizer is divided into Integral 3-straight rib stabilizer, integral 4-straight rib stabilizer, and Integral multi-straight rib stabilizer, which working surface are embedded with carbide insert compound and overlay , etc. The body is made from high strength alloy steel of heat treated.
Type | Working O.D. (in) | O.D. of both ends (mm) | I.D. (mm) | Length (mm) | Length (mm) | Connection | ||||||
short type | long type | string | near bit | |||||||||
near bit | string type | near bit | string | top | down | top | down | |||||
WZ152 | 6″ | 121 | 51 | 300-500 | 800-900 | 1000-1100 | 1200-1400 | 1400-1600 | NC38 | NC38 | NC38 | 3-1/2REG |
WZ158 | 6-1/4″ | |||||||||||
WZ165 | 6-1/2″ | |||||||||||
WZ190 | 7-1/2″ | 159 165 178 | 57 71 | 1000 | 1600 | 1800 | NC46 | NC46 | NC46 | 4-1/2REG | ||
WZ200 | 7-7/8″ | |||||||||||
WZ213 | 8-3/8″ | 400 500 600 | 1000-1200 | 1600-1800 | 1800-2000 | NC46 NC50 | 4-1/2REG | |||||
WZ215 | 8-1/2″ | |||||||||||
WZ222 | 8-3/4″ | |||||||||||
WZ241 | 9-1/2″ | 178 197 | 71 | 400-600 | 800-1000 | 1000-1200 | 1600-1800 | NC50 | NC50 | NC50 | 6-5/8REG | |
WZ245 | 9-5/8″ | |||||||||||
WZ251 | 9-7/8″ | |||||||||||
WZ311 | 12-1/4″ | 203 229 | 76 | 400-600 | 1000 1200 | 1200 1500 | 1800 2000 | NC56 6-5/8REG | 6-5/8REG | |||
WZ445 | 17-1/2″ | 400-600 | 1200-1300 | 1200-1300 | 2000-2200 | 2000-2200 | NC61 7-5/8REG | |||||
