20130143777 | Method for Strengthening a Wellbore of a Well - Method for substantially sealing at least a portion of a wall of a wellbore. Method includes selecting a fracture sealing width defined by the portion of the wellbore wall and the formation, and formulating a fracture sealing composition based on the fracture sealing width. Sealing fluid includes drilling fluid, cementing slurry, completion fluid, and a concentration of particulates forming the fracture sealing composition. The method also includes determining a spurt loss volume of the sealing fluid based at least on the fracture sealing width, determining a fracture volume capacity based at least on the fracture sealing width, and comparing the spurt loss volume of the sealing fluid to the fracture volume capacity. If the sealing fluid has a spurt loss volume less than or equal to the fracture volume capacity, the sealing fluid is pumped into the wellbore, wherein the sealing fluid forms a sealing relationship with the fracture. | 06-06-2013 |