HYBRID STATIONARY LOSS CIRCULATION CAKE ACTIVATED IN-SITU

A method for sealing a loss circulation zone of a subterranean well includes delivering a loss circulation product into a wellbore of the subterranean well. The loss circulation product has a solvent, a fibrous material, and a first reactant. The fibrous material traps the first reactant to form a p...

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Bibliographische Detailangaben
1. Verfasser:	ALMASSI, Faramak
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 sealing a loss circulation zone of a subterranean well includes delivering a loss circulation product into a wellbore of the subterranean well. The loss circulation product has a solvent, a fibrous material, and a first reactant. The fibrous material traps the first reactant to form a porous cake across a fracture of the loss circulation zone. A second reactant is delivered into the wellbore of the subterranean well, the second reactant passes through the porous cake and reacts with the first reactant, reducing a porosity of the porous cake across the fracture so that the loss circulation product seals the loss circulation zone.