Hollow glass microspheres can be used as a continuous medium in low-density cement slurries. With addition of hollow glass microspheres, The slurry is incompressible and all wells are uniform in density. Used in drilling fluid, Sludge cakes formed have good lubrication, reducing the risk of sticking. Hollow glass microspheres have an irreplaceable advantage for it cannot affect the system signal. Hollow glass microspheres have a good rolling performance, and can increase the drilling rate, and significantly improve the drilling efficiency. Cementing with hollow glass microspheres has feature of high temperature resistance, high pressure resistance, stability, durability, and can be recycled. With the increase of pressure layer, low-density slurry cementing with hollow glass microspheres were adopted to consolidate the wells to prevent or reduce leakage, increase the cement top. It will improve single well production, and can be used effectively to obtain underground oil and gas and high temperature geothermal resources.
Hollow Glass Microspheres can be used in paint, rubber, plastics, FRP, artificial stone, putty and other products as filler and weight-reducing agent. It can also be the excellent sensitizer for emulsion explosives; Because of its high compressive properties, it can be used to produce high-strength low-density cement slurry and low density drilling fluid in oil and gas extraction industry.
