Proportioning cost, because of the large dosage of hollow glass beads are relatively high, can be recycled to become important factors restricting the popularization and application of the glass beads drilling fluid can, and only when the beads for 50 ~ 100%, the recovery of hollow glass microsphere, the cost of drilling fluid can with the cost of conventional water-base drilling fluid.
Belonged to non-newtonian fluid, drilling fluid for non-newtonian fluid, the sedimentation rate related to the rheology, has nothing to do with the density difference between the medium. Based on this principle: recycling glass microsphere, especially in the water-base fluid recycling glass beads, water damage fluid rheological property can be used qualitative methods.In essence, is the drilling fluid from the Newton fluid into the Newtonian fluid. A series of data show that recovery rate and final reduced with increase with the increase of the amount of dilution. This method is applicable at the scene, only will be separated from the solids control equipment of the drilling fluid and completion fluid discharge to prepare a good pool, and then add plenty of water, good beads will be floating on the surface of the water.
