METHOD FOR IMPROVING THE INJECTION PROFILE OF A WATER INJECTION WELL

摘要

A method for improving the injection profile of flood water into a heterogeneous subterranean formation penetrated by a water injection well which comprises first establishing a flow of flood water into the formation through the injection well such that the velocity of the water in the well is sufficient to transport subsequently injected solid diverting agent particles down the well and, while maintaining a substantially constant flow of flood water into the well, dispersing in the flood water particles of a solid water-insoluble diverting agent.