Drilling Polymer with heat resistance and salt tolerance for Fluid Loss Control
Drilling Polymer with white to light-yellow appearance was polymerized by heat resistance and salt tolerance allyl monomers. Polymer provides better rheology regulation and fluid loss control.
Polymer has some advantages as follows:
low viscosity effect in mud by special molecular structure;
superior function in fresh mud and brine mud;
Better heat resistance in fluid loss system;
Perfect anti-sloughing and clay hydration control performance.
table1 rheology and fluid loss
|mud type||hot rolling
|4%NaCl||before hot rolling||21||7.4|
|after hot rolling||15||10.2|
|saturated brine||before hot rolling||22||8.0|
|after hot rolling||16||10.4|
*Brine+10% benonite+0.3%NaCO3+2%polymer product.
Anti-sloughing and clay hydration control performance
table2 anti-sloughing and clay hydration control performance
|sample||expansion coefficient reduction rate %||cuttings rolling recovery
|Acrylic acid – acrylamide copolymer||51.2||89.0|
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