METHOD OF PREPARATION AND PERFORMANCE OF WELL SERVICING

oil and gas producing industry. SUBSTANCE: preliminarily arranged in space between casing and tubing is additional pipe string. Round-trip operations are performed after disconnection of pump in well and pumping by multiphase pump of well fluid over channel formed by casing and additional pipe strin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	USMANOV K.I, VALEEV A.M, SHELJAGO V.V, URAZAKOV K.R, BAKHTIZIN R.N
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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