PNP-101

Polyacrylamide

(TU) 20.59.59-321-14023401-2021

Polyacrylamide PNP-101 is an anionic copolymer of polyacrylamide and sodium acrylate with molecular weight average. It is very soluble in water, and does not react with hydrocarbons and porous medium. PNP-101 is used for maintenance and workovers of oil and gas wells, for technologies of oil recovery enhancement resulting in polymer flooding prolonged effect, due to its retention of basic viscosity properties and capability to reduce water relative permeability of formation. The reagent is also used while carrying out water shut-off jobs, in operations on equalization of injectivity profile, in flowdeflecting technologies.
The PNP-101 polyacrylamide is delivered in bags of 25 kg.

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Purpose

Advantages
• Cost-affordable technology;
• powder-like product.

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Physical and chemical properties

Property

Standard

Appearance

White or yellowish freeflowing powder

Granulometric composition:
% of mass granules with size of more than 1,000 mkm, max
% of mass granules with size of less than 100 mkm, max

10,0
5,0

Bulk density, g/cm3

0,55 – 0,80

Flowability

Free discharge

Dynamic viscosity, mPas 0.5% solution in 10% NaCl solution, min

400

Solid residue mass part, %, min*

90,0

PAA solubility, minutes, max*::
in fresh water
in salt water

180
180

PAA gelling test in fresh water 85±5°С, minutes, max*

* the property is measured under customer demand

Recommendations to application

• Under conventional technology of polymer flooding, a chemical plug of the solution of the PNP-1 polymer is injected into formation with permanent concentration, the chemical solution plug, in its turn, is moved within the formation with brine water of the formation pressure maintenance system. The polymer content in the solution and the volume of the chemical plug may vary within a wide range.
• The PNP-101 polyacrylamide is recommended to be used under 70°С and lower formation temperature.