CPC C09K 8/528 (2013.01) [C09K 8/54 (2013.01); E21B 33/1208 (2013.01); E21B 37/00 (2013.01); C09K 2208/32 (2013.01); E21B 41/02 (2013.01)] | 22 Claims |
1. A method comprising:
disposing a device into a borehole in proximity to a subterranean formation where a filter cake has been formed adjacent thereto, the device comprising a support structure and a shape-memory article disposed at the support structure, the shape-memory article comprising a shape-memory polymer, wherein the device is disposed when the shape-memory article is in a compacted shape;
exposing the shape-memory article to a fluid system to cause the shape-memory article to expand and conform to a surface of the filter cake;
exposing the filter cake to the fluid system; and
removing the filter cake with the fluid system to cause the shape-memory article to conform to a surface of the borehole;
wherein the fluid system comprises (i) an acid component; (ii) an activator, (iii) a viscosifier, (iv) water or a brine, and (v) a surfactant.
|