Summary
OBF-VIS is composed of a variety of biopolymers and uses proprietary dispersion technology to significantly improve product dispersion and prevent "fish eyes". The product is not easily contaminated by dissolved ions and is suitable for freshwater, seawater, and brine drilling fluids, achieving high "YP" and "LSRV" values.
Features
All-biological material, which will not cause harm to human body and environment.
Good salt resistance, excellent viscosity increase and lifting cut in saturated brine.
High low shear rate viscosity, which effectively controls the penetration depth of drilling fluid filtrate into the formation and protects oil and gas reservoirs.
The formation of near-static gel near the well wall prevents the formation of "chip bed", which is especially suitable for drilling horizontal wells with large slope and large displacement.
The synergistic effect between materials improves the temperature resistance of biological materials and is suitable for drilling in formations with a temperature of 120°C.
Technical data
|
Item |
Plastic viscosity （mPa·s） |
Dynamic cutting force （Pa） |
φ3/φ6 |
LSVR （mPa·s） |
|
|
Fresh water, salt water and natural seawater +0.8％OBF-VIS |
Normal temperature |
≥15 |
≥15 |
≥10/12 |
≥50000 |
|
120℃ Hot roll 16h |
≥9 |
≥7 |
≥6/8 |
≥30000 |
|
Usage range
Application temperature: ≤120℃(BHCT)
Recommend dosage(BWOC): 0.5-1.0 %
Package
Packed 25kg multi-ply paper sack with waterproof plastic film inside. Or based on customers’ request.
Shelf life:24 months.
