DIVERTING AGENT AND METHOD USING SAME FOR FILLING CRACK OF WINZE

The present invention addresses the problem of providing a diverting agent which gradually dissolves in water. The present invention pertains to a diverting agent containing a polyvinyl alcohol resin,and a method for blocking a crack using the diverting agent. 本发明的目的在于，提供缓慢地溶解于的转向剂。本发明涉及含有聚乙烯醇系树脂的转向...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI NORIHITO, TSUJI KAZUTOSHI, SAKA TAKAHIRO, FUJITA TOMOYA, FURO CHIZUKO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention addresses the problem of providing a diverting agent which gradually dissolves in water. The present invention pertains to a diverting agent containing a polyvinyl alcohol resin,and a method for blocking a crack using the diverting agent. 本发明的目的在于，提供缓慢地溶解于的转向剂。本发明涉及含有聚乙烯醇系树脂的转向剂以及使用该转向剂堵塞龟裂的方法。