Polyacrylamide (PAM), a high molecular weight water soluble polymer, serves as a multi functional chemical agent widely used across diverse oilfield operations. In enhanced oil recovery (EOR), high molecular weight anionic PAM is applied for polymer flooding. It raises the viscosity of injected water, optimizes oil water mobility ratio, mitigates water channeling, expands swept volume and effectively boosts crude oil recovery for mature reservoirs. It is also adopted for profile control and water shut off to adjust reservoir permeability heterogeneity.
During drilling and hydraulic fracturing, PAM stabilizes borehole walls, inhibits clay swelling, reduces fluid loss and acts as a friction reducer. It improves fracturing fluid rheology and enhances proppant carrying capacity to facilitate fracture propagation in formations. Moreover, PAM works as an efficient flocculant for produced water treatment. It aggregates oil droplets and suspended solids to achieve solid liquid separation, enabling treated water to meet standards for reinjection or discharge.
Selection of appropriate ionic type, molecular weight and dosage must match reservoir salinity and onsite working conditions to avoid formation damage. Overall, polyacrylamide improves oilfield production efficiency, cuts operational costs and supports sustainable oil gas development.
Application Scenarios
For treatment of drilling wastewater, fracturing flowback fluid, acid-fracturing waste fluid and produced water.
Suitable for clarification, turbidity removal, decolorization and purification, alone or in combination with inorganic flocculants.
Solutions
Organic high-efficiency cationic polymer flocculants provide rapid flocculation and clear solid-liquid separation. Solid and emulsion product forms are …
Application Scenarios
Suitable for fracturing operations requiring rapid dissolution, high viscosity, strong friction reduction or compatibility with high-mineralization water.
Applicable to conventional vertical wells and large-scale, high-rate horizontal-well fracturing using groundwater, river/lake water, flowback fluid, seawater or high-mineralization water.
Solutions
Polymer friction reducers and thickeners support efficient hydraulic-fracturing treatments by …
Application Scenarios
Designed for oilfield stimulation treatments including matrix acidizing and acid fracturing.
Suitable for improving formation permeability by enhancing acid placement, reaction control, diversion and fracture etching performance.
Solutions
Acidizing restores or improves permeability by dissolving rock cement and blockages in formation pores and fractures. Proper acid-fluid rheology and …
Application Scenarios
Suitable for polymer flooding, deep profile control and water shutoff across a wide range of reservoir conditions.
Applicable to high-temperature and high-salinity reservoirs, low- to medium/high-permeability formations, and injection-enhancement operations.
Solutions
High-molecular-weight polymers improve sweep efficiency and residual-oil recovery while providing good water solubility, injectivity, shear resistance, salinity …
Application Scenarios
Suitable for various drilling-fluid systems, including shale intervals and both fresh-water and salt-water mud systems.
Designed for demanding drilling and completion operations, with strong applicability in deep and ultra-deep wells.
Solutions
Polymer additives are key to maintaining stable drilling-fluid properties and safe downhole operation. The product series is …
