What is PAC r used for?

NewPac™ R filtration control agent is a regular-viscosity grade, polyanionic, cellulosic polymer. It is effective in fresh or saltwater to control fluid loss, build viscosity and maintain thin filter cakes. The product is a highly effective coating agent that protects hydratable solids from dispersion.

What is PAC in drilling?

PAC Polyanionic Cellulose polymer of high purity and used as a main fluid-loss reducer for water-based drilling fluids. Polyanionic cellulose (PAC) is a widely used drilling fluid additive. Its low water loss properties can reduce the amount of water needed to go into the productive zone.

What is PAC R?

PAC-R is a modified natural polyanionic cellulosic polymer (PAC). It is exhibits high viscosity and is readily dispersible and water soluble. PAC-R provides filtration control in bentonite-based drilling fluids and increases water absorption capacity.

Which polymer is used as Viscosifier in drilling mud?

NAPZAN-PR is a premium grade industrial xanthan gum used as a viscosifier in oil field drilling, workover and completion fluids. It is a high molecular weight polysaccharide produced by fermentation of carbohydrate with xanthomonas campestris.

What is PAC polymer?

PAC Polymer is a highly efficient poly-anionic carboxy-methyl-cellulose of high purity. As protective colloid, PAC Polymer prevents the swelling of penetrated clay layers, protects against further disintegration of the clay cuttings, and opimizes deposition during fluid processing.

What is drilling fluid additives?

Water-based drilling mud most commonly consists of bentonite clay (gel) with additives such as barium sulfate (barite), calcium carbonate (chalk) or hematite.

Why we use oil-based mud?

Oil-based muds have become more widely used because of their distinct advantages over water-based muds. Boyd el al. list (1) thermal stability in deep, high-temperature wells, (2) increased lubricity in deviated offshore wells, and (3) hole stability in thick, water-sensitive shales as advantages of oil-based muds.

Is PAC a flocculant?

PAC is a flocculant of new concept, the specific properties of which derive from the action of its basic active constituent, namely Poly Aluminium Chloride. PAC is supplied in form of water solution or as powder, which facilitates the transport and storage operations and subsequent dosage of the reagent.

What is PAC used for in water treatment?

Polyaluminum Chloride (PAC) is one of the most efficient water treatment chemicals utilized today. It is widely used in both potable water and wastewater treatment because it provides high coagulation efficiency and it has the widest pH and temperature application ranges compared to other water treatment chemicals.

What base we choose the drilling fluid?

There are three broad categories of drilling fluids: • Pneumatic fluids, which use compressed air or gas, foam and aerated muds; • WBMs, which use water or brine as the base fluids; and • NAFs, which use oil or other non-aqueous base fluids called OBMs or SBMs.

What is oil based drilling mud?

Oil-based mud is a drilling fluid used in drilling engineering. It is composed of oil as the continuous phase and water as the dispersed phase in conjunction with emulsifiers, wetting agents and gellants. The oil base can be diesel, kerosene, fuel oil, selected crude oil or mineral oil.