Statistical and rheological evaluation of the effect of salts in partially hydrolyzed polyacrylamide solutions

被引:1
|
作者
Santos, Jonas F. [1 ]
Santos, Allan S. [1 ]
de Oliveira, Priscila F. [1 ,3 ]
Santos, Izabel C. V. M. [1 ]
Mansur, Claudia R. E. [1 ,2 ]
机构
[1] Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano IMA, Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Programa Engn Met & Mat PEMM COPPE, Rio De Janeiro, Brazil
[3] Univ Fed Rio de Janeiro, Inst Macromol, Lab Macromol & Coloides Ind Petroleo, Cidade Univ,Rua Moniz Aragao,360,Bloco 8G-CT2, BR-21941594 Rio De Janeiro, RJ, Brazil
关键词
brines; central composite rotational design; partially hydrolyzed polyacrylamide; thermal aging; viscosity; OIL-RECOVERY APPLICATIONS; POLYMER; TEMPERATURE; STABILITY;
D O I
10.1002/app.55278
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Partially hydrolyzed polyacrylamide (PHPA) is the most common anionic copolymer used in Enhanced oil recovery (EOR), but the use of this polymer presents some limitations in the presence of divalent cations. The objective of this work was to evaluate the thermal stability of PHPA in brines containing Na+, Mg2+, and Ca2+ cations (isolated or combined). In this study, the PHPA used at a concentration of 2500 mgL-1 has a MW of 20 x 106 Da. The stability of the polymeric solutions was monitored through rheological analyses for 180 days at 70 degrees C, in the absence of oxygen, using a central composite rotational design. In the absence of dissolved oxygen and cations, the PHPA solution was basically the same as that observed over a period of 30 days. It was observed that Ca+2 ion had the greatest influence on reducing the viscosity of PHPA in all cases. Polymeric solutions with Total dissolved solids (TDS) greater than 1000 mg L-1 showed complete degradation of the polymer in 180 days. The statistical data corroborate the rheological results, showing that only the main effect of Na+ was not statistically significant and that the concentrations of Mg2+ and Ca2+ presented statistically significant effects in their linear components and quadratic components. Representative scheme of the PHPA polymer chain in the presence of different concentrations of Na+, Mg2+, and Ca2+ salts. image
引用
收藏
页数:14
相关论文
共 50 条
  • [31] Studies on the rheological properties of amphiphilic nanosilica and a partially hydrolyzed polyacrylamide hybrid for enhanced oil recovery
    Cao, Jie
    Song, Tao
    Wang, Xiujun
    Zhu, Yuejun
    Wang, Shanshan
    Zhao, Mitao
    Miao, Yungjing
    Zhang, Jian
    CHEMICAL ENGINEERING SCIENCE, 2019, 206 : 146 - 155
  • [32] Rheological properties of hydrolyzed polyacrylamide/sodium oleate mixed system in the presence of different inorganic salts
    Xin, Xia
    Wang, Lin
    Shen, Jinglin
    Xu, Guiying
    Li, Ying
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2014, 114 : 15 - 21
  • [33] Effect of Charge Distribution on the Viscosity and Viscoelastic Properties of Partially Hydrolyzed Polyacrylamide
    Spildo, Kristine
    Sae, Endre I. O.
    ENERGY & FUELS, 2015, 29 (09) : 5609 - 5617
  • [34] The effect of salts and haematite on carboxymethyl cellulose–bentonite and partially hydrolyzed polyacrylamide–bentonite muds for an effective drilling in shale formations
    M. Kuma
    B. M. Das
    P. Talukdar
    Journal of Petroleum Exploration and Production Technology, 2020, 10 : 395 - 405
  • [35] Effect of partially hydrolyzed polyacrylamide (PHPA) mud contamination on rock wettability
    ElSayed, AAH
    AlAwad, MNJ
    OIL GAS-EUROPEAN MAGAZINE, 1997, 23 (02): : 10 - 11
  • [36] MECHANISM OF MICROGEL FORMATION IN PARTIALLY HYDROLYZED POLYACRYLAMIDE
    BURCIK, EJ
    JOURNAL OF PETROLEUM TECHNOLOGY, 1969, 21 (APR): : 373 - &
  • [37] Empirical correlations for viscosity of partially hydrolyzed Polyacrylamide
    Gao C.
    Journal of Petroleum Exploration and Production Technology, 2014, 4 (2) : 209 - 213
  • [38] PREDICTION OF VISCOSITY FOR PARTIALLY HYDROLYZED POLYACRYLAMIDE SOLUTIONS IN THE PRESENCE OF CALCIUM AND MAGNESIUM-IONS
    WARD, JS
    MARTIN, FD
    SOCIETY OF PETROLEUM ENGINEERS JOURNAL, 1981, 21 (05): : 623 - 631
  • [39] ROLE OF IONIC SPECIES AND VALENCY ON THE STEADY SHEAR BEHAVIOR OF PARTIALLY HYDROLYZED POLYACRYLAMIDE SOLUTIONS
    TAM, KC
    TIU, C
    COLLOID AND POLYMER SCIENCE, 1990, 268 (10) : 911 - 920
  • [40] The influence of multivalent cations on negative thixotropy in aqueous glycerol solutions of partially hydrolyzed polyacrylamide
    Bradna, B
    Quadrat, O
    Titkova, L
    Dupuis, D
    ACTA POLYMERICA, 1997, 48 (10) : 446 - 449