Use of ceramic proppant

Cement dispersant liquid component also . Cement dispersing agent can formliquid droplets dispersed in a carrier fluid , a mixture of suitable dispersing agents and furfural diethyl phthalate . As the sand is not homogeneous , so the cement maide resin coated proppant will be more along the high permeability layer into the sand , the impact of sand effect. In order to make uniform injection of cement in the cement injection prior to the first injection period of dispersants. Since the dispersant can reduce the permeability of the high permeability layer , the permeability of the sand layer around the flare , so that the cement can be more uniformly dispersed into the sand . To improve the effectiveness of sand should be noted that the use of dispersants . Displacement fluid injection (by hole liquid ) , so that formation sand coated with resin material. Because of the sand from the cementation is glued to the cement at the point of contact of sand cement , sand in the gap caused by the excess cement after curing sand clogging of the reduced permeability of cement sand , so use the drive liquid cement for the extra fluid replacement to the depths of the maide ceramic proppants formation. Binders such as cement when polar , you can use kerosene, diesel doing additional hole fluid. Consolidation of the resin , to form a subterranean formation permeability , the resin can be achieved by heating and curing in contact with the catalyst . The catalyst can be injected into the formation together with the liquid cement ( catalyzed method) can be filled with the cement , and then into the catalyst ( catalytic outside ) . When using the catalytic method is worth noting: Only cementation fluid injected into the formation , the resin curing reaction can occur . The best way is outside the catalytic catalytic method. Epoxy resin , suitable catalysts include amines, acid anhydrides catalyst for phenolic resins, urea -formaldehyde resin , furfuryl alcohol resin , the inorganic acids, organic acids and the acid are relatively good external chemical catalyst.