Stability Evaluation of Surfactant-Grafted Polyacrylamide Used in Oilfields by Evolution of Ammonia
- 1 Institute of New Energy Chemistry and Environmental Science, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, China
- 2 Institute of New Energy Chemistry and Environmental Science, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, China
- 3 First Oil Plant, Daqing Oilfield Company Limited, Daqing, China
Abstract
Surfactant-grafted Polyacrylamide (S-PAM) serves as a novel oil displacement agent in oilfield. The analysis on composition of S-PAM shows that due to its instability the harmful ammonia gas may be generated during the operation of S-PAM or high temperature. In this paper, stability of S-PAM was studied by measuring the ammonia release from solid and aqueous S-PAM at different temperatures. The results showed that ammonia release of the solid S-PAM was increased with raising temperature. The ammonia release from S-PAM produced by Haibo Company is more than one from Lianhua in the solid state. The ammonia emissions from Lianhua S-PAM are slightly higher than Haibo one in the solutions prepared by both clean water and oilfield water.
- Hu, B.Z. (1997) Production Engineering of Polymer Flooding. Petroleum Industry Press, Beijing, 70-72 (in Chinese).
- Chen, G. (1997) The Strategic Position of Three Oil Production in the Oil Industry in Development. Energy of China, 9, 17-19 (in Chinese).
- Gang, Q.L. (1998) A Dissertation on Chinese Tertiary Recovery Technology. OGRT, 5, 1-7 (in Chinese).
- Ge, G.Z., Wang, J.Y. and Wang, Y.L. (2001) Polymer Flooding and Related Chemical Flooding Progress. Oilfield Chemistry, 18, 282-284 (in Chinese).
- Moritis, G. (1996) New Technology Improved Economics Boost EOR Hopes. Oil Gas Journal, 15, 39-61.
- Fang, D.B. (2006) Acrylamide Polymers. Chemical Industry Press, Beijing, 58-84 (in Chinese).