METHOD FOR PREVENTION OF SAND PRODUCTION TO HORIZONTAL WELL

A method for prevention of sand production to horizontal well includes injection of strengthening agent to the well. Before strengthening agent injection one performs geophysical studies of non-cased well hole, determines interval for perforation works implementation. The strengthening agent is inje...

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Hauptverfasser:	ZARUBIN YURII OLEKSANDROVYCH, BROVCHUK VIKTOR MYKOLAIOVYCH, YEHER DMYTRO OLEKSANDROVYCH, BALAKIROV YURII AIRAPETOVYCH
Format:	Patent
Sprache:	eng
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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Beschreibung
Zusammenfassung:	A method for prevention of sand production to horizontal well includes injection of strengthening agent to the well. Before strengthening agent injection one performs geophysical studies of non-cased well hole, determines interval for perforation works implementation. The strengthening agent is injected to determined interval with use of coil tubing unit, and technological soaking till formation of protective layer on the walls of the well is carried out. As strengthening agent one uses thickened water solution to which one adds mix of metal dust and bentonite powder.