Abstract
Aiming at water shut-off in high temperature reservoirs, the hydroquinone (HQ)–hexamethylenetetramine (HMTA) gel system was studied. The gelation performance and effects of various parameters were systematically evaluated. With increase of the concentrations and temperature, gelation time decreases and gel strength increases. In addition, gelation rate and gel strength were enhanced on adding acid. Moreover, the gel system shows good salt tolerance. The thermal stability measurement indicates that the gel can maintain stability up to 140°C. Uniformly distributed three-dimensional network structure was formed in the gel. At last, the gelation mechanism was proposed, illuminating the detailed gelation process clearly.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
