Patent ID: 7677312

Claim:
A method of treating a subterranean formation comprising: a. forming a temporary matrix by: i. providing a composition comprising a matrix forming material and a matrix degrading material, wherein the matrix degrading material is capable of degrading the matrix forming material after a period of time when subjected to conditions of the subterranean formation, wherein the matrix forming material is cement, and the composition further comprises water, wherein the water is present in the composition in an amount sufficient to form a pumpable slurry; ii. placing the composition into a wellbore penetrating the subterranean formation; and, iii. allowing the composition to form a matrix within the wellbore, whereby the matrix is capable of at least one of significantly reduces the passage of fluid across or near the matrix or provides structural strength; b. performing a treatment operation on the subterranean formation or wellbore; and c. allowing the matrix degrading material to degrade and break the matrix.