METHODS AND COMPOSITIONS FOR USING TEMPORARY, SLOW DEGRADING, PARTICULATE AGENTS IN A SUBTERRANEAN FORMATION

摘要

Methods, fluids, and compositions are provided for treating subterranean formations. The fluids can be servicing or drilling fluids including a base fluid and a particulate agent or biocide precursor particulate agent. The particulate agent can seal flow paths in the subterranean formation and subsequently can be degraded to allow flow to resume. The particulate agent may be a reaction product of a urea containing compound and an aldehyde containing compound. An example of such a reaction product is a methylene urea.

主权项

1. A method for treating a subterranean formation comprising:
providing a servicing fluid comprising a base fluid and an effective amount of a solid particulate agent suspended therein, wherein the solid particulate agent is a reaction product of a urea containing compound and an aldehyde containing compound; introducing the servicing fluid into the subterranean formation; allowing at least a portion of the solid particulate agent to seal a flow path in the subterranean formation; and degrading at least a portion of the solid particulate agent.