1. Such a mixture can produce a cement slurry as low as 11.0 ppg. 2. Another solution can be rock grouting pressure pumping portland cement slurry into weak fractured rock. 3. The greater density of cement slurries than the displacement mud inside the casing causes the U-tube effect. 4. Raw asbestos fibers were stirred into cement slurries or beaten by hand and fed into carding machines. 5. DLs exist in practically all heterogeneous fluid-based systems, such as blood, paint, ink and ceramic and cement slurry . 6. A rubber plug used to separate the cement slurry from other fluids, reducing contamination and maintaining predictable slurry performance. 7. The check-valve assembly fixed within the float collar prevents flow back of the cement slurry when pumping is stopped. 8. The bottom plug is launched ahead of the cement slurry to minimize contamination by fluids inside the casing prior to cementing. 9. Stage Collars provide a means for cement slurry to be displaced higher in the annulus immediately following the primary cement job. 10. The OptiCem cement modelling system, used by Halliburton in April 2010, played a crucial part in cement slurry mix and support decisions.
