Abstract: As the local block layer of small hollow oilfield hollow 38-15-13c well is unconsolidated, the viscosity of crude oil is high, the well is drilled by steam injection etc., the sand flowing has been serious, through having once prevented sand mechanically and taking measures against sand flowing by artificial well wall made out of high temperature resin, the problem of sand flowing has not yet fixed. After the technology of strengthening well wall by thermal solid resin against sand was applied, we take advantage of the characteristics of the temperature solidarity from thermal solid resin, to overcome the shortness of effective period of the conventional acid solidarity, poor performance in temperature resistance, etc., the sand flowing has been stopped. Through on-site implementation and the tracking evaluation of post-production effectiveness, the technology has developed an efficient way to prevent sand for heavyoil thermal well in small hollow oilfield due to its advantages, such as good quality of sand-proof, simpleness in construction, lowness of operation risk and low cost, etc..