Patent ID: 7721596
Filing Date: 2010-05-25
Classification: E21B

Abstract:
1. A method to inject a slurry into a subterranean formation, the method comprising: measuring at least one of flow rate, pump stroke, temperature, and well pressure, head pressure, slurry viscosity and slurry density at an injection well in communication with the subterranean formation; estimating downhole properties of the slurry using the measured data; measuring surface properties of the slurry with a measurement apparatus; modeling surface properties for the slurry from the estimated downhole properties; comparing the measured surface properties with the determined modeled surface properties; modifying the slurry until the measured surface properties are within determined tolerance values of the determined modeled surface properties; and injecting the modified slurry into the subterranean formation through the well, wherein the estimated downhole properties of the slurry comprise bottom-hole pressure and slurry stabilization time.