Method of inhibiting or controlling release of well treatment agent
First Claim
1. A method of inhibiting or controlling release of a well treatment agent in a well, a subterranean formation, a flow conduit or a vessel by introducing into the well, subterranean formation, flow conduit or vessel the well treatment agent in a water-in-oil microemulsion, wherein (a) the water-in-oil microemulsion provides for continuous release of the well treatment agent over a sustained period of time of at least six months;
- (b) the oil phase of the water-in-oil microemulsion is a solvent-surfactant blend; and
(c) the amount of surfactant in the blend is from about 35 to about 80% by volume.
4 Assignments
0 Petitions
Accused Products
Abstract
A microemulsion delivery system containing a well treatment agent in a water-in-oil microemulsion may be used for well remediation as well as in other treatment operations including stimulation, acidizing, and drilling. In addition, the water-in-oil microemulsion delivery system may be used to clean surface equipment and downhole equipment.
64 Citations
18 Claims
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1. A method of inhibiting or controlling release of a well treatment agent in a well, a subterranean formation, a flow conduit or a vessel by introducing into the well, subterranean formation, flow conduit or vessel the well treatment agent in a water-in-oil microemulsion, wherein (a) the water-in-oil microemulsion provides for continuous release of the well treatment agent over a sustained period of time of at least six months;
- (b) the oil phase of the water-in-oil microemulsion is a solvent-surfactant blend; and
(c) the amount of surfactant in the blend is from about 35 to about 80% by volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- (b) the oil phase of the water-in-oil microemulsion is a solvent-surfactant blend; and
Specification