Development of a Novel Fluid-Loss Control Pill for Placement Inside Gravel-Pack Screens

摘要

Controlling fluid losses to the formation, both before and after sand control completions, is critical to optimizing production. While mechanical devices, such as flapper valves, remain the preferred choices for preventing fluid loss when the service tools are removed from the production packer, they sometimes fail or otherwise cannot be used. In those instances, chemical fluid loss control pills are frequently used as supplements or contingencies. Unfortunately, this option normally requires remedial treatment that adds cost and can cause a host of additional problems, not the least of which is the risk of formation damage.