Corrosion prevention nipple

The utility model belongs to down-hole tools used for oil field oil production engineering and relates to a corrosion prevention nipple which is mainly used for down-hole tubular column matching of air foam injected type wells. The corrosion prevention nipple comprises an oil pipe nipple body and sa...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LI JIANXIONG, WANG HONGHUA, ZHU MINGHUA, HE YUNZHANG, PENG HONGBO, LIN YONGJUN, PENG GUOLIANG
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MINING MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The utility model belongs to down-hole tools used for oil field oil production engineering and relates to a corrosion prevention nipple which is mainly used for down-hole tubular column matching of air foam injected type wells. The corrosion prevention nipple comprises an oil pipe nipple body and sacrificial anode zinc slabs. At least two sections of sacrificial anode zinc slabs are poured on the outer tubular wall of the oil pipe nipple body, and an eroded containing groove is formed between the two sections of sacrificial anode zinc slabs. The corrosion prevention nipple has the advantages that the eroded containing groove is formed between the sacrificial anode zinc slabs, eroded residues of the corrosion prevention zinc slabs can fall off and be contained in the eroded containing groove, so the situation that the residues are blocked between the corrosion prevention zinc slabs and the inner wall of a casing pipe can be avoided, and the tubular column is prevented from being blocked.