1. Summary
OBF-NIS, a composite of fiber material and rigid material, has good filling, bridging and blocking effects.
OBF-NIS has little effect on the static water loss and rheology of the drilling fluid, ensuring the stability of the drilling fluid performance.
OBF-NIS, can effectively pass the drill bit water eye and vibrating screen, so that the drilling and plugging can be synchronized.
OBF-NIS can effectively improve the quality of filter cake and reduce the circulating filter loss of drilling fluid.
2.Technical data
|
Item |
Index |
|
Appearance |
Free flowing solid powder |
|
Moisture |
≤8% |
|
Screen residue (the side length of sieve hole is 0.15mm) |
≤10% |
|
Sand bed penetration depth |
≤8cm |
3.Usage range
In freshwater and seawater drilling fluids.
Suggestion dosage: 1.0～3.0% (BWOC).
4. Package
Packed 25kg multi-ply paper sack with waterproof plastic film inside. Or based on customers’ request.
Shelf life:24 months.
