• chemical degradation of hpam by oxidization in produced

    Chemical Degradation of HPAM by Oxidization in Produced

    In this work, the HPAM chemical degradation characteristics were investigated through series of laboratory experiments. The oxidative, ionic and thermal degradation of HPAM were studied, and the feasibility of HPAM degradation by oxidization was examined. The results will help the oil industry to find a practical and optimal HPAM treatment

  • chemical degradation of hpam by oxidization in produced

    Chemical Degradation of HPAM by Oxidization in Produced

    Request PDF Chemical Degradation of HPAM by Oxidization in Produced Water: Experimental Study Hydrolyzed polyacrylamide (HPAM) degradation is a critical technical and environmental concern in

  • visible light photocatalytic degradation of hpam polymer

    Visible light photocatalytic degradation of HPAM polymer

    2018-11-01· HPAM is transformed into propionamide followed by the removal of CH 3 group and a new byproduct is formed (acetamide). The other part of HPAM, the compound (–H 3 C) reacts with the free hydrogen ions (H +) to produce acetic acid. During the photocatalytic degradation of HPAM, ammonia (NH 3) is formed.

  • hydrolyzed polyacrylamide fly ash reinforced polymer

    Hydrolyzed polyacrylamide Fly ash reinforced polymer

    2020-01-15· HPAM has many advantageous features; however, several researchers have also mentioned polymer degradation due to several factors. HPAM has been used in many forms and with different characteristics and concentrations in various applications in the oil industry including polymer flooding, drilling fluid additive, and conformance control gel

  • polymer degradation

    Polymer degradation

    Polymer degradation is a change in the properties—tensile strength, color, shape, etc.—of a polymer or polymer-based product under the influence of one or more environmental factors such as heat, light or chemicals such as acids, alkalis and some salts.These changes are usually undesirable, such as cracking and chemical disintegration of products or, more rarely, desirable, as in

  • weiguo luo's research works university of regina, regina

    Weiguo Luo's research works University of Regina, Regina

    Chemical Degradation of HPAM by Oxidization in Produced Water: Experimental Study. Article . Mar 2013; Farshid Torabi. Weiguo Luo. Suxin Xu. Hydrolyzed polyacrylamide (HPAM) degradation is a

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    scholar.google

    We would like to show you a description here but the site won’t allow us.

  • chemical degradation of polymer used in enhanced oil

    Chemical Degradation of Polymer Used in Enhanced Oil

    Chemical Degradation of Polymer Used in Enhanced Oil Recovery (EOR) Produced Water November 1, 2017 24th IPEC Iris Porat and Miguel Pelaez. Background Produced water with polymer challenges: 1. Viscosity and viscoelastic properties of produced water poor performance of water-oil separators 2. Water discharge in sea polymer (HPAM) is not readily biological degradable and is

  • chemical degradation of polyacrylamide polymers under

    Chemical Degradation of Polyacrylamide Polymers Under

    In this paper we will preserve the terminology of Muller (1981a, 1981b) in referring to the continued hydrolysis of partially hydrolyzed polyacrylamides (HPAM), which results in their sensitivity to calcium, as "chemical degradation,?? which is not to be confused with cleavage of the acrylic backbone by radical mechanisms, which Muller refers

  • what is oxidation? definition and example

    What Is Oxidation? Definition and Example

    A type of chemical reaction in which oxidation and reduction occurs is called a redox reaction, which stands for reduction-oxidation. The oxidation of a metal by oxygen gas could then be explained as the metal atom losing electrons to form the cation (being oxidized) with the oxygen molecule gaining electrons to form oxygen anions.

  • rheological evaluation of hpam fluids for eor applications

    Rheological Evaluation of HPAM fluids for EOR Applications

    Rheological Evaluation of HPAM fluids for EOR Applications L. F. Lopes, B. M.O. Silveira, R. B. Z. L. Moreno State University of Campinas Abstract--The interest in techniques for enhanced oil recovery has grown due to the need to improve oil productivity reducing recovery. Water water injection and production. Although waterflooding is the

  • degradation of rubber

    Degradation of Rubber

    Thermal-Oxidative Degradation of Rubber. Most elastomers will undergo significant changes over time when exposed to heat, light, or oxygen (ozone). These changes can have a dramatic effect on the service life and properties of the elastomers and can only be prevented or slowed down by the addition of UV stabilizers, antiozonates, and antioxidants.

  • polymers for conformance improvement petrowiki

    Polymers for conformance improvement PetroWiki

    Polyacrylamide is normally not referred to as HPAM until the carboxylate content exceeds approximately 2 mole percent. HPAM is the most widely employed water-soluble polymer for use in both polymer waterflooding and in oilfield conformance polymer-gel treatments. As compared with polyacrylamide, HPAM polymer tends to be a better viscosity

  • in situ chemical oxidation

    In situ chemical oxidation

    In situ chemical oxidation (ISCO), a form of advanced oxidation processes and advanced oxidation technology, is an environmental remediation technique used for soil and/or groundwater remediation to reduce the concentrations of targeted environmental contaminants to acceptable levels. ISCO is accomplished by injecting or otherwise introducing strong chemical oxidizers directly into the

  • the chemical degradation of the oil sludge produced

    The chemical degradation of the oil sludge produced

    Then it was treated by chemical degradation. The chemical degradation is a good choice for treatment of OSPPF in situ for the offshore oilfield. To our knowledge, this is the first study for treatment of OSPPF produced from offshore oilfield in situ by chemical degradation. 2 EXPERIMENTAL SECTION. 2.1 Materials. The OSPPF and HPAM which was used for the polymer flooding were supplied by CNOOC

  • degradation of polymers

    Degradation of Polymers

    The degradation of polymers can be induced by. Heat (thermal degradation) Oxygen (oxidative and thermal-oxidative degradation) Light (photodegradation) Weathering (generally UV/ozone degradation) The deterioation due to oxidation and heat is greatly accelerated by stress, and exposure to other reactive compounds like ozone.

  • polyacrylamide degradation and its implications

    Polyacrylamide degradation and its implications

    Chemical degradation of PAM that leads to chain scission involves activation of the polymer by free radicals, 42,62,63,64,65,66 most commonly hydroxyl radicals generated in the environment from

  • experimental study of the optimal conditions for degrading

    Experimental study of the optimal conditions for degrading

    The paper takes it as the goal to test and find the optimal conditions for degrading HPAM-containing sewage by using the mixed bacteria.As a matter of fact,the HPAM,short for the partially hydrolyzed polyacrylamide,a linear water-soluble polymeric compound with high molecular weight,has been broadly used for oil production in China.As compared with the physico-chemical degradation of HPAM

  • viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    Polymer flooding is the most successful chemical method to enhance oil recovery. This technique has achieved large-scale field application in China. Polymer flooding is also being tested in several heavy oil fields. For oil field applications, partially hydrolyzed polyacrylamide (HPAM) is the most widely used polymer. HPAM must maintain high viscosity to achieve good oil recovery. In reality

  • uv-light aided photoelectrochemical synthesis of au/tio2

    UV-light aided photoelectrochemical synthesis of Au/TiO2

    TiO 2 nanotube arrays (TiO 2 NTs) loaded with Au nanoparticles were fabricated as an electrode for enhanced photoelectrocatalytic activity toward partially hydrolyzed polyacrylamide (HPAM) degradation. The honeycombed TiO 2 NTs were prepared by a two-step anodization method and modified by Au nanoparticles via an UV-light aided photoelectrochemical process.

  • plastic failure through molecular degradation

    Plastic Failure Through Molecular Degradation

    M olecular degradation is a leading cause of plastic component failure, with a study indicating that 17% of plastic failures are associated with a degradation mechanism. 1 In generic terms, molecular degradation of a plastic is the deleterious alteration of the molecular structure within the polymer as the result of a chemical reaction. Importantly, degradation mechanisms principally involve a

  • chemical degradation of polyacrylamide polymers

    Chemical Degradation of Polyacrylamide Polymers

    In this paper we will preserve the terminology of Muller (1981a, 1981b) in referring to the continued hydrolysis of partially hydrolyzed polyacrylamides (HPAM), which results in their sensitivity to calcium, as "chemical degradation,?? which is not to be confused with cleavage of the acrylic backbone by radical mechanisms, which Muller refers

  • the chemical degradation of the oil sludge produced

    The chemical degradation of the oil sludge produced

    Then it was treated by chemical degradation. The chemical degradation is a good choice for treatment of OSPPF in situ for the offshore oilfield. To our knowledge, this is the first study for treatment of OSPPF produced from offshore oilfield in situ by chemical degradation. 2 EXPERIMENTAL SECTION. 2.1 Materials. The OSPPF and HPAM which was used for the polymer flooding were supplied by CNOOC

  • chemical degradation of polyacrylamide polymers

    Chemical degradation of polyacrylamide polymers

    Chemical degradation of polyacrylamide polymers under alkaline conditions. David B. Levitt, Gary A Pope, Stephane Jouenne. Research output: Contribution to journal › Article. 41 Citations (Scopus) Abstract. Hydrolysis of polyacrylamide (PAM) -based polymers is rapid and extensive under the alkaline conditions typical of alkaline/surfactant-polymer (ASP) flooding. Even at room temperature

  • polyacrylamide

    Polyacrylamide

    In dilute aqueous solution, such as is commonly used for Enhanced Oil Recovery applications, polyacrylamide polymers are susceptible to chemical, thermal, and mechanical degradation. Chemical degradation occurs when the labile amide moiety hydrolyzes at elevated temperature or pH, resulting in the evolution of ammonia and a remaining carboxyl

  • 4-4 chemical oxidation frtr

    4-4 Chemical Oxidation FRTR

    Figure 4-4: Typical Chemical Oxidation System. The Chemical oxidants most commonly employed to date include peroxide, ozone, and permanganate. These oxidants have been able to cause the rapid and complete chemical destruction of many toxic organic chemicals; other organics are amenable to partial degradation as an aid to subsequent

  • phosphorene degradation: visualization and quantification

    Phosphorene Degradation: Visualization and Quantification

    Solving the degradation problem demands an understanding of the oxidization process. We, for the first time, apply synchrotron-based X-ray photoelectron spectroscopy (XPS), X-ray absorption near-edge structure (XANES), and scanning trans-mission X-ray microscopy (STXM) for the nanoscale chemical imaging of phosphorene degradation. Through

  • spe americas e & p health, safety, security,

    SPE Americas E & P Health, Safety, Security,

    ISBN: 978-1-62748-141-0 SPE Americas E & P Health, Safety, Security, and Environmental Conference 2013 Galveston, Texas, USA 18-20 March 2013

  • chemical properties

    Chemical Properties

    Chemical Properties and Introduction This booklet is the second in a series, the first being "Physical Properties of Glycerine and its Solutions," published in 1963. Together, they present the more important available data on this versatile chemical compound. One of the significant things about glycerine is the

  • viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    Polymer flooding is the most successful chemical method to enhance oil recovery. This technique has achieved large-scale field application in China. Polymer flooding is also being tested in several heavy oil fields. For oil field applications, partially hydrolyzed polyacrylamide (HPAM) is the most widely used polymer. HPAM must maintain high viscosity to achieve good oil recovery. In reality

  • spe 169030 effect of dissolved iron and oxygen

    SPE 169030 Effect of Dissolved Iron and Oxygen

    SPE 169030 Effect of Dissolved Iron and Oxygen on Stability of HPAM Polymers 3 digital pipets, a small amount of stock Fe2+ chloride solution was added to achieve the desired concentration: 5, 10, 20, or 30 ppm of Fe2+. To achieve 8000-ppb dissolved oxygen, we bubbled pure oxygen through the polymer solutions (outside the anaerobic

  • the impact of surface modified nanoparticles on the

    The Impact of Surface Modified Nanoparticles on the

    It was also observed that the surface modified SiO2 NPs with silanes and carboxylic acids cannot improve the performance of the HPAM solutions. To conclude, the HPAM/TiO2-PAM, the XG/Fe(OH)3 and XG/TiO2 nanopolymer sols exhibited the best performance in displacing viscous oil in the linear sand-pack tests. The original contributions to

  • visible light photocatalytic degradation of hpam polymer

    Visible light photocatalytic degradation of HPAM polymer

    Here we report a new approach to use vertically aligned zinc oxide nanorods (ZnO NRs) supported on substrates engineered for improving their visible light harvesting capacity for effective solar photocatalytic degradation of HPAM. The viscosity of collected oilfield produced water containing HPAM were found to be reduced dramatically when the

  • what is oxidation? definition, process & examples

    What is Oxidation? Definition, Process & Examples

    In this lesson, learn about oxidation and its process, and examine some examples of oxidation, including the mystery of browning fruit. Then, measure what you've learned with a quiz.

  • plastic failure through molecular degradation

    Plastic Failure Through Molecular Degradation

    M olecular degradation is a leading cause of plastic component failure, with a study indicating that 17% of plastic failures are associated with a degradation mechanism. 1 In generic terms, molecular degradation of a plastic is the deleterious alteration of the molecular structure within the polymer as the result of a chemical reaction. Importantly, degradation mechanisms principally involve a

  • phosphorene degradation: visualization

    Phosphorene Degradation: Visualization

    Solving the degradation problem demands an understanding of the oxidization process. We, for the first time, apply synchrotron-based X-ray photoelectron spectroscopy (XPS), X-ray absorption near-edge structure (XANES), and scanning transmission X-ray microscopy (STXM) for the nanoscale chemical imaging of phosphorene degradation. Through these

  • comparative study on enhancing oil recovery under high

    Comparative Study on Enhancing Oil Recovery under High

    2019-06-30· Relative to the water flooding process, addition of HPAM in the displacing fluid can further recover 5–30% of original oil in place 1 by enlarging the sweep efficiency and increasing the oil/water mobility ratio. 2,3 With HPAM being used in the chemical EOR process, around 14 million tons of incremental crudes is produced annually in Daqing

  • 4-4 chemical oxidation frtr

    4-4 Chemical Oxidation FRTR

    Figure 4-4: Typical Chemical Oxidation System. The Chemical oxidants most commonly employed to date include peroxide, ozone, and permanganate. These oxidants have been able to cause the rapid and complete chemical destruction of many toxic organic chemicals; other organics are amenable to partial degradation as an aid to subsequent

  • laboratory study on the potential eor use of hpam/ves

    Laboratory Study on the Potential EOR Use of HPAM/VES

    Abstract. Polymer flooding represents one of the most efficient processes to enhance oil recovery, and partially hydrolyzed polyacrylamide (HPAM) is a widely used oil-displacement agent, but its poor thermal stability, salt tolerance, and mechanical degradation impeded its use in high-temperature and high-salinity oil reservoirs.

  • determining the cause of oil degradation

    Determining the Cause of Oil Degradation

    Also known as pressure-induced thermal breakdown (degradation), micro-dieseling is a process in which an air bubble transitions from a low-pressure region in a system to a high-pressure zone. This is very common in hydraulic systems. Micro-dieseling results in adiabatic compression of the air bubble within the oil, which then cooks the

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