We are Xanthan Gum/ Xanthan Gum Premier manufacturer and supplier in India.
Description
UNIVIS-BORE D is a dispersible, high-molecular-weight biopolymer used for increasing viscosity in water-base-based drilling fluid systems. Small quantities provide viscosity and weight material suspension for all water-base mud systems. UNIVIS-BORE D biopolymer has the unique ability to produce a fluid that is highly shear-thinning and thixotropic.
Application
UNIVIS-BORE D biopolymer is used to increase viscosity for cuttings transport and suspension. It performs effectively in all water-base fluids, ranging from highly weight d to low-solids systems. heavy- brine fluid systems. This includes freshwater, seawater, salt, and UNIVIS-BORE D biopolymer deliver an optimized rheological profile with elevated low-shear-rate-viscosity and highly shear-thinning characteristics. These characteristics frequently result in fluids with inverted flow properties, i.e., the yield pint being greater than the plastic viscosity. Shear-thinning fluids have low effective viscosities at the high she r rates encountered both inside the drill-string and at the bit. This effective viscosity generates minimal pressure losses
and standpipe pressures, thus allowing optimize hydraulics and increased rates
of penetration. Conversely, for the low shear rates experienced in the annulus, UNIVIS-BORE D biopolymer enables the fluid to have a high effective viscosity that adequately suspends cuttings and cleaning of the well.
Physical Specification
| Typical Properties | |||||||||||||
| Physical appearance | Cream to tan, free flowing powder | ||||||||||||
| Toxicity | Non toxic | ||||||||||||
| Specific Gravity | 0.6-.07 | ||||||||||||
| Viscosity in 1% KCl solution | >1200 mPa.S | ||||||||||||
| Solubility | Easily soluble in fresh or brine | ||||||||||||
| pH (1% aqueous soln.) | 6.0-8.5 | ||||||||||||
| Temperature stability: | 2500F-1210C | ||||||||||||
| Brookfield LV,1.5 r/min | Minimum 1950 cP | ||||||||||||
Advantages
• Highly effective results
• viscosifier, with minimal treatments producing significant
• Shear-thinning rheological profile for improve hydraulics
• Minmum friction. pressure losses for additional hydraulic horsepower at the bit and low, high shear-rate viscosity for maximum penetration rates
• Viscous laminar flow in the annulus for improved wellbore stability with maximum hole-cleaning and suspension capacity • Mixes easily
• It can not only fasten the well bore, but decrease the damage to oil formation. It can also greatly raise the efficiency of drilling, work over and completion. As a bio type oil Driver, Oil drilling and exploitation grade UNIVIS-BORE D can improve oil extraction rate and utilization factor of natural resources. The more important point is that it can furthest and protect natural environment
Recommended Treatment
The amount of UNIVIS-BORE D biopolymer required depends upon the desired viscosity. Normal concentrations range from 0.25 to 2 lb/bbl (0.71 to 5.7 kg/m3) for most mud systems. Special fluids and difficult hole-cleaning conditions can require higher concentrations of, up to 4 lb/bbl (11.4 kg/m3). The addition of salt, an antioxidant and thermal stabilizer improve temperature stability in fluids from 250 to >2800F (121 to >1380C).
Limitation
Trivalent ions such as chromium and iron can cause UNIVIS-BORE precipitation and loss of viscosity or cross linking·
Not tolerant of high pH or high calcium ion conditions·
UNIVIS-BORE systems should be pretreated prior to drilling cement
Subject to bacterial degradation – a biocide should be used to prevent fermentation·
The slightly anionic nature of UNIVIS-BORE requires special mixing procedures when the product is mixed with cationic materials
| UNIVIS-BORE Physical Properties | |||||||||||||||||||||
| UNIVIS-BORE Physical Properties | |||||||||||||||||||||
| Requirement | Standard | ||||||||||||||||||||
| Starch,guar,or their derivatives | Absent | ||||||||||||||||||||
| Moisture content | Maximum 13 % | ||||||||||||||||||||
| Screen analysis | |||||||||||||||||||||
| Less than 425 µm (11/64 in) | Minimum 95 % | ||||||||||||||||||||
| Less than 75 µm | Maximum 50 % | ||||||||||||||||||||
| Viscosity (For rotational viscometer, equipped with f0.2 torsion spring, R1/B1 configuration:) | |||||||||||||||||||||
| Rotational viscometer, 300 r/min | Minimum 11 cP (minimum 55 dial reading) | ||||||||||||||||||||
| Rotational viscometer, 6 r/min | Minimum 180 cP (minimum 18 dial reading) | ||||||||||||||||||||
| Rotational viscometer, 3 r/min | Minimum 320 cP (minimum 16 dial reading) | ||||||||||||||||||||
Rheological Property
(1 pod seawater, dial reading )
600 rpm not less than 75
300 rpm not less than 55
200 rpm not less than 45
100rpm not less than 35
6 rpm not less than 15
3 rpm. not less than 12.5
For more details on Xanthan Gum/ Xanthan Gum Premier manufacturer and supplier in India, contact us at Universal Drilling fluids.