Affiliation:
1. China University of Petroleum, Beijing
2. Northeast Petroleum University
Abstract
Aiming at the problems in the conventional SAGD production process, taking a heavy oil reservoir in Bohai oilfield for prototype, we design and manufacture a set of three-dimensional physical model which is resistance to high temperature and high pressure. Under the same temperature and pressure, using this physical model we made two sets of indoor experiments. The experimental results show that steam and gas assisted gravity drainage has the characteristics of high output at the early stage, dramatic decrease at the end compared with the SAGD mining, development effect of high pressure reservoir is good when using steam and gas assisted gravity drainage after steam and gas stimulation preheating, recovery of steam and gas assisted gravity drainage after three rounds of steam and gas stimulation preheating is improved significantly.
Publisher
Trans Tech Publications, Ltd.
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