Oil Field Chemicals
Oil / Water Separation Process Chemicals
Oil /water separation by the different gravity of the two phases is a very slow process,
but can be accelerated by the assistance of chemicals. The chemicals used are termed
demulsifiers, antifoam and water clarifiers /deoilers.
We supply a range of demulsifiers, antifoam and water clarifiers /deoilers that give our
customers the confidence that their processes are controlling.
Demulsifier
Emulsion breaking is one of the most complex and situational aspects of oilfield
chemistry. Stable emulsions encountered in oil production are normally composed of
varying levels of water or brine dispersed in a continuous oil phase. These emulsions
are stabilised by compounds occurring naturally in the crude. The severity of the
emulsion formed and thus the ease at which it can be broken is dependent on:
1- Physical and chemical properties of the crude oil
2- Production temperature
3- Distance between reservoir and topsides
4- Degree of agitation experienced between reservoir and separator, turbulent flow presence of solids (sand, clay, bacteria, scale, asphaltenes, corrosion product, napthenates) and / or natural surfactants which act to stabilise the emulsion.
Demulsifier or emulsion breakers that separates the water from the “water/crude oil”
emulsion. Demulsifier additive chemical breaks the crude oil emulsion into crude oil and
water. Demulsifiers are key components of production formulations which enable the
quick separation of produced water from oil. Separating crude oil from water can be
very time critical due to short residence time.
Vira Baspar Bartar Co. create the new demulsifier formulation for demulsification of
crude oil emulsion. Demulsifier selection by us is normally carried out in the field by our
highly experienced bottle testing engineers. A wide selection of demulsifier chemistries
are screened individually and in the form of blends.


Antifoam
Anti-foaming additive suppresses foam when all types of crude oil tanks are being
cleaned. Foaming is a function of crude oil type which either permits small gaseous
bubbles to be encased in a thin film of crude oil as the gas comes out of the crude oil
solution or permits gaseous bubbles as the viscosity and surface tension of the crude
oil changes and mechanically unlocks the gas. Anti-foaming additive avoids operational
cost increases due to foam induced crude oil supply disruption. Anti-foaming solutions
have employed chemicals, heat, or mechanical processes such as settling, agitation, or
centrifugal force. Each process provides solutions, but can also create additional
problems necessitating further remediation.
Vira Baspar anti-foaming additive employs new chemistry to solve the foaming
challenge without creating additional problems necessitating further remediation.
Silicone-based Vira Baspar defoamers are polymers with silicon backbones. These
might be delivered as an oil or a water based emulsion. These are also heavy duty
defoamers and are good at both knocking down surface foam and releasing entrained
air. Our defoamers are suitable in non-aqueous foaming systems like crude oil and oil
refining.


Water clarifiers / Deoilers
Tightening legislation has encouraged many organizations to review their treatment of
challenging oil / water mixtures. Depending on the regional requirements, residual oil
limits can range from 40 ppm to as low as 10 ppm. For removing residual oil from
produced water or separating waste oil and oil sludge, Vira Baspar Bartar Co. offers a
broad range of water clarifiers (deoilers), covering different molecular weights, ionicity,
and chemistries.
We offer a series of water clarifiers, and chelates designed to work under various
production conditions, allowing you to safely and effectively clear your oil and gas
production water. The benefits of our products include: