CASING DEFORMATION AND CONTROL FOR INCLUSION PROPAGATION

摘要

Casing deformation and
control for inclusion propagation in earth
formations. A method of forming at least
one inclusion in a subterranean formation
includes the steps of : installing a liner within
a casing section in a wellbore intersecting
the formation; and expanding the liner and
the casing section, thereby applying an
increased compressive stress to the formation.
Another method of forming the inclusion
includes the steps of : installing an expansion
control device on a casing section, the
device including at least one latch member;
expanding the casing section radially outward
in a wellbore, the expanding step including
widening at least one opening in a sidewall
of the casing section, and displacing the latch
member in one direction; and preventing a
narrowing of the opening after the expanding
step, the latch member resisting displacement
thereof in an opposite direction.