HDQRJ Alloy Steel 3ft Wireline Tool String 2.5 Inch API Q1
Alloy Steel Weight stem Bar 3ft Wireline Tool String For Oil Well
I. Overview:
The weight stem bar is used to provide the weight required for the operation, so that the tool string can overcome the pressure acting on its section and the resistance of the packing in the packing box and fall.
The weight stem bar is cylindrical in shape, with a male buckle and a fishing neck at the upper end, and a female buckle at the lower end.
The weight bars have different lengths and sizes.
II. Common technical parameters:
| Specification | Fishing neck | connection thread | length |
| 1.25＂ | 1.187＂ | 15/16UN | 2ft |
| 1.25＂ | 1.187＂ | 15/16UN | 3ft |
| 1.25＂ | 1.187＂ | 15/16UN | 5ft |
| 1.5＂ | 1.375＂ | 15/16UN | 2ft |
| 1.5＂ | 1.375＂ | 15/16UN | 3ft |
| 1.5＂ | 1.375＂ | 15/16UN | 5ft |
| 1.875＂ | 1.75＂ | 1-1/16UN | 2ft |
| 1.875＂ | 1.75＂ | 1-1/16UN | 3ft |
| 1.875＂ | 1.75＂ | 1-1/16UN | 5ft |
| 2.125＂ | 1.75＂ | 1-1/16UN | 2ft |
| 2.125＂ | 1.75＂ | 1-1/16UN | 3ft |
| 2.125＂ | 1.75＂ | 1-1/16UN | 5ft |
| 2.5＂ | 2.313＂ | 1-9/16UN | 2ft |
| 2.5＂ | 2.313＂ | 1-9/16UN | 3ft |
| 2.5＂ | 2.313＂ | 1-9/16UN | 5ft |
Ⅲ. Structural features
The wireline weight stem bar is the most frequently-used model with advantages of simple design and easy operation.
Ⅳ. Notes
1. Standardstem is the simplest and commonly used weight stem. During usage, the thread in both ends require firm connection. It is necessary to choose appropriate weight stem during operation according to practical condition.
2. After using standard stem, please keep in good repair for extending its service life.
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