Open AccessPreparation and Evaluation of PPGs for High-Temperature Conformance Control
Author(s) -
Hao Wu,
Longfei Song,
Jijiang Ge
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/585/1/012139
Subject(s) - swelling , monomer , acrylamide , nanocomposite , materials science , thermal stability , polymer chemistry , rheology , polymerization , chemical engineering , radical polymerization , composite material , polymer , engineering
In this paper, the synthesis and thermal behavior of nanocomposite performed particle gels (PPGs) was investigated. The nanocomposite PPGs were synthesized via free radical polymerization at room temperature, using acrylamide (AM), N-vinylpyrrolidone (NVP) as monomers and N, N-methylenebis (acrylamide) (MBA) as crosslinker. Thermal stability evolutions were conducted by aging PPGs at 130°C and salinity of 2.2×10 5 mg/L for 90 days. Swelling ratio (S w ) and modulus were measured as a function of aging time. A three-stage swollen history was discovered by means of rheological experiments and swelling measurements. Eexperimental results show that increasing the concentration of monomer, crosslinker and clay leaded to higher swelling ratio and lower modulus during the aging term. PPGs prepared with 30 wt % monomers, NVP: AM ratio of 6:4, 0.25 wt % crosslinker and 3.0 wt % clay exhibited optimum properties for conformance control at high temperature reservoir condition.