Wellhead casing reinforcing device
The utility model belongs to the field of oil-gas field development, and particularly relates to a wellhead casing reinforcing device. A wellhead casing reinforcing device comprises an oil-string casing, a surface casing is arranged on the outer side of the lower end of the oil-string casing, and an...
Gespeichert in:
Hauptverfasser: | , , , , , , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The utility model belongs to the field of oil-gas field development, and particularly relates to a wellhead casing reinforcing device. A wellhead casing reinforcing device comprises an oil-string casing, a surface casing is arranged on the outer side of the lower end of the oil-string casing, and an annulus is formed between the lower end of the oil-string casing and the surface casing; an upper fixing device is arranged at the upper end of the oil-string casing, and a lower fixing device is arranged between the lower end of the oil-string casing and the surface casing; the upper fixing device comprises a slip and an upper pressing disc which are sequentially connected to the upper end of the oil-string casing in a sleeved mode, the upper pressing disc is in a disc shape, and the upper end of the oil-string casing is matched with the slip, the slip and the upper pressing disc. The lower fixing device comprises a lower pressure plate, the top end of the lower pressure plate is connected with the upper pressure |
---|