Plugging agent composition and use thereof, and hydrocarbon reservoir plugging method

Abstract

A plugging agent composition and a use thereof, and a hydrocarbon reservoir plugging method are provided. The plugging agent composition contains a polymer latex and a stabilizer. The stabilizer has a cross-linkable group and/or a couplable group that are/is cross-linked or coupled in the presence of a crack and/or a leakage point, so that the polymer latex is condensed and cured. The plugging agent composition is a smart pressure-sensitive lost circulation control material, which can address leaks promptly as the leaks occur and does not work unless there is a leak; and compared with an existing latex-demulsified lost circulation control material, there is no need to use metal cations for demulsification, and the plugging agent composition can penetrate into cracks for plugging, and can plug cracks of different sizes from nanometers to millimeters.

Dependencies are inferred from the claim text.