Description
Competitive Replaceable Sleeve Stabilizer For Soil DrillingThe replaceable sleeve replaceable stabilizer is made of central pipe, sleeve replaceable and bottom sub which are thread connection. The three-piece construction can bear strong bending strength and the sleeve can be easily and quickly replaced on drill floor.
The replaceable sleeve stabilizer consists of an integral mandrel and a sleeve. One mandrel series can be equipped with different sizes of sleeve for several hole sizes. In order to match the drilling conditions, the sleeves can be easily changed on the rig floor during changing of hole size or wear surface.
| D1 OD mm | L2 ±5 | D2 | d | L1 ±10 | L ±20 | Thread code on two ends mm(in) |
| 190±1 | 400/500 | 159 | 57 | 750V | 1900 | 190.5 (7 1/2) |
| 199±1 | 400/500 | 159 | 57 | 2000 | 200 (7 7/8) |
| 212±1 | 400/500/600 | 159/178 | 57/71 | 1900 | 212.7 (8 3/8) |
| 215±1 | 400/500/600 | 159/178 | 57/71 | 2000 | 215.9 (8 1/2) |
| 221±1 | 400/500/600 | 159/178 | 57/71 | 2100 | 222.2 (8 3/4) |
| 240±1 | 400/500/600 | 178 | 71 | 1900 | 241.3 (9 1/2) |
| 244±1 | 400/500/600 | 178 | 71 | 2000 | 244.5 (9 5/8) |
| 250±1 | 400/500/600 | 178 | 71 | 2100 | 250.8 (9 7/8) |
| 310±1 | 500/600/700 | 203/229 | 76 | 2100/2200/2300 | 311.1 (12 1/4) |
| 443±2 | 500/600/700 | 203/229 | 76 | 2300/2400/2500 | 444.5 (17 1/2) |
Dimensions and type of connection thread
| OD mm(in) | Both end thread size and type |
| Drill string stabilizer | Near-bit stabilizer |
| Top | Botton | Top | Button |
| 121 (43/4) | NC35 | NC35 | NC35 | 3 1/2 reg |
| 159 (61/4) | NC44 | NC44 | NC44 | 4 1/2 reg |
| NC46 | NC46 | NC46 |
| 178 (7) | NC50 | NC50 | NC50 | 4 1/2 reg |
| 203 (8) | NC56 | NC56 | NC56 | 6 5/8 reg |
| 229 (9) | NC61 | NC61 | NC61 | 7 5/8 reg |
Complaint
