What is hydrolyzed polyacrylamide (HPAM)?

Hydrolyzed polyacrylamide (HPAM) is the popular synthetic polymer in most of the polymer flooding process in filed and experiment scale . Xanthan is non-ionic biopolymer that has been used in areas in the oil industry including polymer flooding and drilling mud .

How effective is polymer flooding?

Polymer flooding will be most effective if applied in the early stages of a water flood while the mobile oil saturation is still high. Polymer is also a critical component when considering other chemical EOR technologies such as alkaline-polymer or alkaline-surfactant-polymer. The present study covers two main parts.

Why is polymer flooding a chemical EOR method?

Polymer flooding as a chemical EOR method involves adding polymer molecules in order to increase water viscosity. Increasing water viscosity will improve the mobility ratio of injected fluid to reservoir fluid toward a more favorable value. Therefore, vertical and areal sweep efficiencies are increased compared to typical water flooding.

What causes permeability reduction after polymer flooding?

The permeability reduction after polymer flooding is driven by some factors including polymer type (cationic, anionic, nonionic), molecular weight of polymer, shear effects, rock properties and reservoir condition (temperature, pressure, salinity).

Do polymers affect emulsifying stability of amphoteric polyacrylamide (tspam)?

The role of polymers in the emulsifying stability of an amphoteric polyacrylamide (TSPAM) with good viscosity–temperature property in different flooding systems was investigated by means of a new emulsion stability model and molecular simulations.

Can dodecyltrimethylammonium bromide be used as ASP flooding?

Firozjaii investigated the performance of dodecyltrimethylammonium bromide DTAB (surfactant), HPAM (polymer) and sodium hydroxide (alkaline) as ASP flooding in numerical simulation after history matching with production data from laboratory work on water flooding and surfactant injection .