Abstract: After Tahe Oilfield Ordovician carbonate rock reservoir is subjected to the multi-round cycle after water injection，
the advantage water flow channels are formed within the pattern wells. The breakthrough of injection water phenomenon is
increasingly outstanding，and water injection efficiency decreases year by year. Aiming at the water injection breakthrough
technical problems，under the high temperature（140 ℃）high salinity（24×104 mg/L）work environment，we study the profile
control system experiment，select thickening agent and surface sand separation，establishprofile model and create qualitative
erosion-resistant analysis model. As a resuli，we establish thickening fluid carrying sand formation profile control system and
develop“detail ceramsite + river sand + coated sand”three slug profile technology. The application of the thickening fluid
profile to carry sand field test technology，gained a good profile control. It will be some guidance for carbonate profile of Tahe
Oilfield deep carbonate rocks.

Key words: carbonate rock, sand carrying profile control, forfracture-cave type reservoirs, profile control model, Tahe Oilfield