Salt polyacrylamide polymer have the flooding effect
Salt polyacrylamide polymer have the flooding effect 2014-02-12 Currently,world oil commonly used in high molecular weight polyacrylamide PAM for flooding and made many satisfactory results,while higher tackifying salt polyacrylamide polymer and has greater resistance coefficient,residual resistance factor,showing the adjusted water injection profile , increasing oil precipitation rate and other characteristics.
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Polyacrylamide degradation and its implications
High MW anionic PAM is also the most commonly applied polymer in enhanced oil recovery applications; the use of surfactant-polymer flooding can increase oil recovery by 5–30% 14 and in some
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Salt effect on hydrophobically modified polyacrylamide
The emulsification of amphiphilic polymer is inevitably affected by the salinity environment in the preparation and flooding process. The variation of emulsions in stability and rheology has a significant influence on the efficiency of polymer flooding. Thus, the effect of NaCl and CaCl2 on the emulsification behavior of hydrophobically modified polyacrylamide (HMPAM) was investigated.
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Impact of Salts on Polyacrylamide Hydrolysis and Gelation
drilling, polymer flooding and other enhanced oil recovery meth-ods, such as alkaline and alkaline– surfactant–polymer (ASP) flood-ing. In improved oil recovery, PAM is used in water control, 1
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Effect of partially hydrolyzed polyacrylamide
During this process, water soluble polymers are added to flooding water and then injected into reservoirs. Polymer flooding increases water viscosity and oil/water mobility ratio, and thereby enhances oil recovery. Polymer flooding has been proven to be an effective means to enhance oil recovery for middle/high water-cut oilfields . In this respect, partially hydrolyzed polyacrylamide (HPAM) has become the most widely used polymer for enhanced oil recovery because of its low-price, good
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Experimental investigation on effect of alkali, salts
Fig. 2(a) and (b) shows the effect of the addition of alkali on the rheological properties of polyacrylamide, PAM + CTAB, PAM + Gemini-5 and PAM + Gemini-6 mixed systems. On adding the NaOH to a mixed assembly of polymer-surfactant, the viscosity decreases up to 0.05 wt.% of alkali, further, increases with increasing the concentration of alkali.
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Effect of salt solutions on chain structure
The effect of salt solutions (NaCl, Na2SO4 and CaCl2) on the conformational properties of partially hydrolyzed polyacrylamide (HPAM) was investigated by using static laser light scattering (SLLS).
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Development and Performance of Salt-Resistant Polymers
The development of salt tolerance polymer has been improved a lot in China recently, due to the need of reinjection of oilfield produced water in chemical flooding.
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Introduction to polymer flooding and related agents, EOR
Polymer flooding processes use many molecules of a high molecular weight to alter the flow of water. Polymers often are used in drilling as either fracturing or completion fluids, and in injection well profiles as blocking agents (Chatterji & Borchardt, 1981; Taylor & Nasr-El-Din, 1995).
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Assessment of Polyacrylamide Based Co-Polymers Enhanced
Polymers 2017, 9, 647 3 of 16 where m i; is the molar concentration of the ith ion and z i is its charge. The flexible polyelectrolytes expand in a solvent of low ionic strength (low salt concentrations) as a result of the mutual repulsion of the charges along the chain and contract in high salt concentrations.
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Research on the crosslinking mechanism - Polymer Journal
Resol crosslinked polyacrylamide (PAM) hydrogel can be used as the chemical flooding agent in enhanced oil recovery because of its excellent temperature- and salt-resistant properties. It is known
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Experimental investigation of the effect of different
Increasing the viscosity of injected water by the addition of polymer improves the displacement efficiency during the water flooding process. In this study, a sulfonated polyacrylamide copolymer has been added to salt water. Several parameters, such as polymer concentration, shear rate, NaCl concentration, molecular weight and sulfonation degree, have a significant effect on the polymer
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Effect of Hydrophobically Modified Polymer on Salt-Induced
Journal of Applied Polymer Science 2014, 131 (12) , n/a-n/a. DOI: 10.1002/app.40390. Jin Ling Chai, Hao Sun, Xun Qiang Li, Lu Sheng Chen, Bao Yang, Yu Tong Wu. Effect of Inorganic Salts on the Phase Behavior of Microemulsion Systems Containing Sodium Dodecyl Sulfate.
Get PriceExperimental investigation of polymer flooding with low
Polymer flooding is considered as one of the most successful IOR techniques with over 40 years of application, both in lab and field scale. The main objective of polymer flooding is to increase the viscosity of injection water to improve mobility ratio of oil and water (Samanta et al. 2010).This is achieved by addition of water soluble polymers to the injection water (Gaillard et al. 2014
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tension, injected fluid viscosity and are stable than the polymer-surfactant at harsh and saline conditions [1-3]. The oil recovery decreases by increasing the salt concentration during the polymer flooding, whereas in the case of flooding with a suspension of nano-silica in the polymer, decreasing the rate of oil recovery is lower [4].
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Physico-Chemistry Characterization of Sulfonated
physico-chemistry characterization of sulfonated polyacrylamide polymers, and states the objectives of this research. It starts with a general overview about polymer applications in oil industry, and followed by the viscosity and adsorption/retention study of polymers which must be well known before the application processes.
Get PriceExperimental investigation of the effect of different
Increasing the viscosity of injected water by the addition of polymer improves the displacement efficiency during the water flooding process. In this study, a sulfonated polyacrylamide copolymer has been added to salt water. Several parameters, such as polymer concentration, shear rate, NaCl concentration, molecular weight and sulfonation degree, have a significant effect on the polymer
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Experimental investigation of polymer flooding with low
Polymer flooding is considered as one of the most successful IOR techniques with over 40 years of application, both in lab and field scale. The main objective of polymer flooding is to increase the viscosity of injection water to improve mobility ratio of oil and water (Samanta et al. 2010).This is achieved by addition of water soluble polymers to the injection water (Gaillard et al. 2014
Get PriceIsolation and Characterization of Polyacrylamide-Degrading
Polyacrylamide (PAM) is a water-soluble polymer that is usually produced through the polymerization of acrylamide with one or more copolymers. The amide groups of PAM form hydrogen bonds in aqueous solutions, and high-molecular-weight PAM is an effective flocculant of suspended solids in water via charge neutralization and interparticle
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Effects of Nanoparticles on Rheological Behavior
tension, injected fluid viscosity and are stable than the polymer-surfactant at harsh and saline conditions [1-3]. The oil recovery decreases by increasing the salt concentration during the polymer flooding, whereas in the case of flooding with a suspension of nano-silica in the polymer, decreasing the rate of oil recovery is lower [4].
Get PricePhysico-Chemistry Characterization of Sulfonated
Hydrolyzed polyacrylamide polymer (HPAM) as a feasible and effective viscosifier has been fully studied and used for polymer flooding processes in several oil field, e.g. Daqing oil field. It has been shown that Hydrolyzed polyacrylamide polymers (HPAM) may be a good choice for high temperature condition with no oxygen and no divalent ions
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Experimental Study on the Physical Performance and Flow
energies Article Experimental Study on the Physical Performance and Flow Behavior of Decorated Polyacrylamide for Enhanced Oil Recovery Shuang Liang 1,* , Yikun Liu 1,*, Shaoquan Hu 2, Anqi Shen 1,* , Qiannan Yu 1,*, Hua Yan 2 and Mingxing Bai 1,* 1 EOR key lab in the Ministry of Education in Northeast Petroleum University, Daqing 163318, China 2 Daqing Oilfield Co., Ltd. No. 6 Oil Production
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polymers to plug porous media. The new test is more sensitive to differences in polymer plugging than the old 1970s test. The new test demonstrated that plugging tendencies varied considerably among both partially hydrolyzed polyacrylamide (HPAM) and xanthan polymers. 2. Consistent with previous work, we confirmed that xanthan
Get PriceAn experimental study of polymer flooding to enhance oil
The effect of salinity on the effectiveness of HPAM solution It is generally proved that the concentration of cationic ions such as [Na.sup.+], [Ca.sup.2+] and [Mg.sup.2+] have negative effects on the polymer flooding efficiency as it affects the viscosity of the solution.
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Selection of Optimal Polyacrylamide for Polymer Flooding
Summary HPAM is a copolymer of acrylamide and acrylic acid, and it is the most common polymer utilized in polymer flooding. Sulfonated polyacrylamides, i.e. copolymers of acrylamide and acrylamide tertiary butyl sulfonic acid (ATBS), are a potential choice for high temperature and harsh salinity reservoirs. The aim of this study was to provide systematic information to aid in the selection of
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Sinofloc Polyacrylamide with AMPS - Sinofloc Chemical
Lab experiments and field test studies have shown that polymer flooding is an effective way to improve oil recovery, and has broad application prospects. However, although the most commonly used polyacrylamide has a certain oil displacement effect, the viscosity of polyacrylamide decreases rapidly with the increase of the mineralization degree
Get PriceIsolation and Characterization of Polyacrylamide-Degrading
Polyacrylamide (PAM) is a water-soluble polymer that is usually produced through the polymerization of acrylamide with one or more copolymers. The amide groups of PAM form hydrogen bonds in aqueous solutions, and high-molecular-weight PAM is an effective flocculant of suspended solids in water via charge neutralization and interparticle
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An investigation into polymer flooding in high temperature
Today polymer flooding in a reservoir with high temperature and high salt content is an important challenge for this industry (Han et al. 2013).Detecting salt-tolerant and thermally stable, polymers with high efficiency and low adsorption on rock surface is a main step to the success of polymer flooding in HTHS reservoirs (Zhu et al. 2014).To solve this problem, Sulfonated polymers have also
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but partially hydrolyzed polyacrylamide PHPA was used to control mobility. They obtained additional oil recovery of 20% for surfactant flooding and 23% for polymer augmented surfactant flooding but the effect of surfactant flow rate was not investigated. Onuoha and Olafuyi [18] in 2013 came up with a laboratory study on the use of Gum Arabic
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Injectivity Characteristics Of EOR Polymers
polymers to plug porous media. The new test is more sensitive to differences in polymer plugging than the old 1970s test. The new test demonstrated that plugging tendencies varied considerably among both partially hydrolyzed polyacrylamide (HPAM) and xanthan polymers. 2. Consistent with previous work, we confirmed that xanthan
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of polymer has also been calculated with the help of the permeability reduction data. Flooding experiments have been performed to investigate the additional oil recovery a er conventionalwater ooding. 2. Experimental Sections.. Materials Used. Partially hydrolyzed Polyacrylamide (PHPA) (Polymer Pusher , SNF Floerger, France) with
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Academic Journal of Polymer science (AJOP) | Juniper
Abstract. The effect of nanoparticles SiO2, TiO2 and Fe2O3 on the rheological behavior of anionic polyacrylamide and a mixed assembly of polymer and cationic surfactants were measured systematically by shear viscosity and oscillatory testing at different concentration of Nano-materials.
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