Camellia Zareie - Faculty of Chemical Engineering, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran.
Mohsen Vafai Sefti - Faculty of Chemical Engineering, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran.
Ahmad Reza Bahramian - Faculty of Chemical Engineering, Polymer Engineering Department, Tarbiat Modares University , Tehran, Iran
Mahsa Baghban Salehi - Petroleum Engineering Department, Chemistry & Chemical Engineering Research Center of Iran, Tehran, Iran

The effect of pressure on the gelation time and the strength of gel polymer is one of the important parameters to design the gel polymer using in temporary well plugging. In this paper, bottles, rheology tests and oil-well laboratory system are used for investigating of the gel formation which consisting of polyacrylamide and chromium crosslinker. The effect of temperature and pressure of 3000 psi (typical Iranian oil well condition) was investigated on gelation time and the strength of gel polymer. The results showed that the pressure did not have any significant effect on gelation time. Also the sweep test showed that the elastic modulus of gel polymer under pressure is approximately 5 times more than the elastic modulus of gel polymer under ambient pressure

Polymer gel, Gelation time, Rheology, Pressure, Sweep test