Small quantitites provide viscosity and weight material suspension in WBM.
Silicate-based drilling fluid system
SILDRIL system capitalizes on the very latest in silicate technology to give you formation-inhibitive performance approaching that of oil-based mud but with the environmental acceptability of a water-based fluid.
The system's advanced silicate polymerization mechanism creates complex inorganic structures that react with both shale surfaces and drilled cuttings. These inorganic polymeric structures result in both physical and chemical stabilization.
As a result, you reap the benefits of superior wellbore integrity, high penetration rates, decreased trouble time, and superb solids removal performance—all with minimal environmental impact.
Depending on the application, a soluble sodium or potassium silicate is the basic building block of the SILDRIL system. These silicate products are available in liquid and dry forms.
The relatively small number of components that comprise the nondispersed SILDRIL system provide a great deal of flexibility in designing the system to meet the needs of a particular application. Fewer products also mean ease of maintenance, simpler logistics, and lower drilling costs.
While the additives may be few, the advantages are many. Complementing its superior inhibitive characteristics that consistently deliver cost effective drilling performance in the most reactive and dispersive shale formations, SILDRIL system provides supplemental benefit few water-based fluids can match.
Because SILDRIL system reliably produces a stable and near-gauge wellbore, it provides an excellent opportunity for enhanced log interpretation. The system consistently demonstrates its capacity to allow the most advanced formation evaluation tools to reach the bottom, even in applications where logging with alternative drilling fluids had either been unsuccessful or resulted in unacceptable nonproductive time (NPT).