氟硅酸—水玻璃是在单一氟硅酸基础上发展的一种油井非选择性堵水剂。本文论述了该堵剂的堵水机理、配方及性能。现场应用中注意了选井选层并采取了一套较合理的施工工艺,因而取得了较好的选择性堵水的效果。 Fluorosilicic acid - water glass is a non-selective oil well plugging agent developed on the basis of a single fluorosilicic acid. This paper discusses the plugging mechanism, formulation and performance of the plugging agent. In the field application, attention has been paid to well selection and selection of wells and a more reasonable construction technique has been adopted, thus obtaining a better selective water blocking effect.