A new type of gel profile confronting experiment for deep high-temperature reservoir
A kind of gel-forming time and gel-strength were controlled by adjusting the concentration of nano-graphite,polymer and crosslinking agent.The study shows that the increase of temperature and salinity accelerates the rate of gelling and ensures long term stability of gelling in deep strata.Differential scanning calorimetry was used to determine the applicable temperature range of the gel from 0 to 147℃.The core plugging test shows that the plugging rate and resistance coefficient are greater than 90%and 14,respectively.
High temperature reservoir profileControlMicromechanism
NETL
NSTL
万方数据
