OceanVis WG is a kind of premium grade Welan gum mesh 80-120, which is widely used as a viscosity modifier in oilfield operations, such as hydraulic fracturing, wellbore cleanup, drilling, workover and completion fluids, as well as construction and concrete applications. OceanVis WG provides high performance reliability.
OceanVis WG is a kind of premium grade Welan gum, which is a fermentation-derived hydrocolloid produced by the microorganism Alcaligenes sp. The OceanVis WG from Oceanivew Chemical is recommended for use as a viscosity modifier in oilfield operations, such as hydraulic fracturing, wellbore cleanup, drilling, workover and completion fluids, as well as construction and concrete applications. OceanVis WG provides high performance reliability.
In oilfield applications, OceanVis WG demonstrates unique rheological characteristics to provide optimum wellbore cleanup and suspension. It delivers high viscosity at low concentrations. The unique high viscosity of OceanVis WG at low shear rate enhances the suspension properties of low-concentration colloid and bentonite-free fluid formulations. Meanwhile its highly pseudoplastic properties results in oil drilling fluids that have good flowability at high shear rate which can help in significantly reducing transportation costs.
In cement applications, OceanVis WG is excellent in facilitating the flow of sand and aggregator in self-levelling and seepage systems. It reduces the precipitation and separation of sand and ensures consistent strength throughout the cement system.
OceanVis WG is stable under a wide range of temperatures and pH levels. It is compatible with most oil field additives as well as many make-up fluids such as fresh, sea and brackish waters, making it the hydrocolloid of choice.
Typical use levels of OceanVis WG range from 0.1% to 2.0%.
Property | Requirement | |
Appearance | Off-white powder | |
Particle size (Pass 80 mesh) | ≥92% | |
Loss on drying | ≤13% | |
pH value (1% in DI water) | 6.0-9.0 | |
300rpm | ≥39 | |
Thermal Stability Viscosity Of 0.66% Welan Gum in Water(70F/21℃/） | ||
200rpm | ≥33 | |
100rpm | ≥29 | |
6rpm | ≥ 17 | |
3rpm | ≥ 16 | |
Thermal Stability Viscosity Of 0.66% Welan Gum in Water(185F/85℃/） | 300rpm | ≥ 37 |
200rpm | ≥ 32 | |
100rpm | ≥ 28 | |
6rpm | ≥ 17 | |
3rpm | ≥ 16 | |
Key Features and Benefits
Excellent pseudoplastic rheology
Excellent suspension and emulsion stability
Excellent thermal stability
Improves shelf life stability of high pH products
Provides excellent water retention
Improved pumping, placement and workability
Non-toxic and biodegradable for reduced disposal costs
Packaging, Storage and Shelf Life
The product is packaged in 55Lbs / 25Kg, 44Lbs / 20kg valve bag.
Store product in ambient temperature and away from direct sunlight.
when stored in these conditions and in its original unopened packaging,
will maintain its initial properties for 24 months.
