cited by: polyacrylamide oilfield water shutoff agent in brazil

cited by: polyacrylamide oilfield water shutoff agent in brazil
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  • Which polymers are used in oil fields?
  • Polymers, such as partially hydrolyzed polyacrylamide (HPAM), are widely used in oil fields to enhance or improve the recovery of crude oil from the reservoirs. It works by increasing the viscosity of the injected water, thus improving its mobility and oil recovery.
  • What is polyacrylamide polymer gel treatment?
  • They include polymer flooding, alkaline-surfactant flooding, foam flooding, gel treatments, and so on. Among these methods, polyacrylamide polymer gel treatment is a common and cost-effective method because the process can reduce water cut by sealing the thief zone and redistributing the water drive.
  • Which biopolymers are used in oil industry?
  • Polysaccha- rides (biopolymers) such as starch, xanthan, guar, lignin and cellulose, and silicate gels with organic modification were also used in the oil industry. The raw materials, performance properties, and processing costs placed these polymers at a considerable disadvantage relative to PAM-related gels.
  • How can polyacrylamide-based polymer microspheres be used to arrest water cut?
  • Polyacrylamide-based polymer microspheres were applied to four wells in the pilot zone to arrest this water cut. A three-stage treatment was adopted applying 800 nm, 300 nm, and 100 nm initial diameters of PMs respectively for each stage. Given their small size, these PMs reached deeper areas of the formation sealing off high permeability channels.