Effect of partially hydrolyzed polyacrylamide on emulsification stability of wastewater produced from polymer flooding

Chen, Hua-xing; Tang, Hongming; Gong, Xiao-ping; Wang, Junjie; Liu, Yigang; Duan, Ming; Zhao, Feng

doi:10.1016/j.petrol.2015.06.031

Cited by 41 publications

(6 citation statements)

References 26 publications

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“…Firstly, since HPAM was a high-molecular polymer, and a little change of the HPAM solution concentration will cause much enhancement of the solution viscosity. 35 The elevated solution viscosity resulted in the high mass transfer resistance, and it was difficult for the HPAM molecules diffusing from the membrane surface to the bulk solution. Thus, more sever ICP appeared.…”

Section: Resultsmentioning

confidence: 99%

Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite

et al. 2021

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Section: Resultsmentioning

confidence: 99%

Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite

et al. 2021

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“…Nuevamente, los resultados del proceso de clarificación obtenidos en el presente estudio están en concordancia con resultados reportados en literatura. Chen et al [16] concluyeron que es difícil separar el crudo de las aguas residuales producidas por inyección de polímeros, debido al incremento de la viscosidad, tensión interfacial, potencial Z y viscoelasticidad interfacial de las gotas de aceite, lo que impide el acercamiento y la coalescencia de estas al incrementar la concentración de polímero HPAM. En otra investigación, Ma et al [17] compararon el comportamiento en el tiempo de la emulsión presente en aguas de producción del campo Shengli, empleando dos medios: medio (A) con 40 ppm de polímero y medio (B) sin polímero.…”

Section: Muestraunclassified

Efectos de la irrupción polímero HPAM en procesos deshidratación y clarificación en tecnologías de cEOR en Ecopetrol S.A.

Trillos¹,

Quintero²,

Garcia³

et al. 2020

revion

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El recobro mejorado del petróleo es un proceso que se utiliza para maximizar el volumen de hidrocarburos recuperados en campos petroleros. Dentro de los métodos de recobro mejorado químico se encuentra la inyección de polímeros que tiene como objetivo aumentar la viscosidad del fluido desplazante y así la eficiencia volumétrica de barrido en el reservorio. Independientemente del proceso EOR utilizado, la gestión eficaz de los fluidos de producción es fundamental para el éxito del proyecto. Uno de los principales focos de atención es la incertidumbre de las características de los fluidos producidos, a medida que el polímero pasa a través del yacimiento. Estos cambios afectan las propiedades físicas y químicas debido a la adsorción de los compuestos en el yacimiento y a la degradación mecánica y térmica. En el caso de los campos de ECOPETROL S.A, donde en la actualidad se está considerando la posible expansión de proyectos de inyección de polímero, se requirió el estudio detallado de la incidencia de residuales poliméricos en los pozos productores y su efecto aguas abajo. El grupo de investigación del Centro de Innovación y Tecnología - ICP evidenció incremento en la eficiencia del proceso de deshidratación en presencia de residuales de polímero, mientras que en la etapa de tratamiento de agua se encontró un impacto negativo en la calidad del agua separada con el incremento del contenido de polímero remanente, dando como resultado parámetros fisicoquímicos fuera de especificaciones para agua de inyección o vertimiento.

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“…HPAMs offer several advantages over conventional methods such as conformance control in fractures, water leak-off, and EOR . In addition, the improved rheological behavior of HPAM-based polymeric solutions has been appreciated in emulsions, drug delivery, and EOR . Moreover, being a thickening agent, HPAM increases the viscosity of the base fluid, which curbs the effect of NP sedimentation within a nanofluid .…”

Section: Introductionmentioning

confidence: 99%

Comparative Effectiveness of Thermal Stability and Rheological Properties of Nanofluid of SiO₂–TiO₂ Nanocomposites for Oil Field Applications

Kumar

Narukulla

Sharma

2020

Ind. Eng. Chem. Res.

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Thermal stability is becoming a barrier for silica nanofluid use at high temperatures in several industrial applications including oil fields. Homoagglomeration of SiO 2 nanoparticles (NPs), which leads to premature sedimentation of large NP clusters, is one of the reasons for the loss in thermal stability. However, this can be improved by incorporating a thermally conductive co-stabilizer, which not only reduces the homoagglomeration of SiO 2 −SiO 2 NPs but also improves their rheological properties. Thus, this study reports the use of titania (TiO 2 ) NPs in improving the thermal stability and rheological properties of silica nanofluids for high-temperature applications. TiO 2 concentration was kept low and constant (0.1 wt %), whereas the SiO 2 concentration was varied from 0.1 to 1.0 wt %. In nanofluid synthesis, watersoluble partially hydrolyzed polyacrylamide of 1000 ppm is used as a viscosity enhancer. Different techniques such as visual inspection, dynamic light scattering, ultraviolet−visible (UV−vis) spectroscopy, thermogravimetric analysis, and field emission scanning electron microscopy were used to characterize nanofluids. The thermal stability and rheological properties of HS nanofluids were not only affected by agglomeration and high temperature but also showed least dispersion (45 days). TiO 2 inclusion controlled the rate of homoagglomeration in silica nanofluids, resulting in SiO 2 −TiO 2 nanocomposites of least size, and better dispersion (71 days) and thermal stability (only 78% mass loss) were observed in HTS nanofluids. Thus, thermally stable silica nanofluids of improved flow behavior are proposed for oil field applications where conventional nanofluids may find limitations. Finally, the enhanced oil recovery potential of silica nanofluids is studied and compared with the ones of silica and titania at real oil field conditions of high temperature (90 °C) and saline environment of 5 wt % NaCl. The oil recovery potential of conventional silica nanofluids increased by 12% original oil in place, with the inclusion of 0.1 wt % TiO 2 in the system.

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Effect of partially hydrolyzed polyacrylamide on emulsification stability of wastewater produced from polymer flooding

Cited by 41 publications

References 26 publications

Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite

Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite

Efectos de la irrupción polímero HPAM en procesos deshidratación y clarificación en tecnologías de cEOR en Ecopetrol S.A.

Comparative Effectiveness of Thermal Stability and Rheological Properties of Nanofluid of SiO₂–TiO₂ Nanocomposites for Oil Field Applications

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Effect of partially hydrolyzed polyacrylamide on emulsification stability of wastewater produced from polymer flooding

Cited by 41 publications

References 26 publications

Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite

Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite

Efectos de la irrupción polímero HPAM en procesos deshidratación y clarificación en tecnologías de cEOR en Ecopetrol S.A.

Comparative Effectiveness of Thermal Stability and Rheological Properties of Nanofluid of SiO2–TiO2 Nanocomposites for Oil Field Applications

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Product

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Comparative Effectiveness of Thermal Stability and Rheological Properties of Nanofluid of SiO₂–TiO₂ Nanocomposites for Oil Field Applications