It is difficult to shut off the useless water production from horizontal wells because of the big number of water points. To solve this problem， a kind of annular chemical packing martial （MMH/MT/AM system） was developed using 4% aluminum-magnesium layered hydroxide/sodium soil（MMH/MT）and 4% acrylamide（AM） . Effects of the influencing factors on rheological properties of the MMH/MT/AM system were explored. Results showed that when the MMH/MT concentration increased from 1% to 4% and the temperature rose from 30℃ to 70℃，both the recovery rate and the recovery strength of the system were obviously enhanced. With the increase of the shear rate from 1000 s^-1 to 7000 s^-1，the damage degree of the system structure was sharply intensified，but the elasticity modulus after system ecovered was similar to that of system before shearing. Moreover，a particle-coating with a three-dimensional network structure was formed after the addition of the accelerating agent. With the increase of the accelerating agent concentration，the consolidation time of the system was rapidly shortened and the strength of the consolidated system was obviously improved. The elasticity modulus after the system recovered exceeded 38 kPa when the concentration of the accelerating agent was only 60 mg/L. The plugging strength of the system in the annular space was 8.3 MPa/m when the annular space was packed with sand. Results of the scanning electron microscope tests indicateed that the particles inside the system were dispersed after the shearing action；with the extension of the recovery time，dispersed particles gradually aggregated and associated in layers and a obvious layered network structure was constructed after the recovery time exceeded 60 seconds.