スチーム攻法シミュレーション技術の実油田への適用例 (その1)

抄録

In this paper, application of simulation technology for the evaluation of steamflood pilot test being conducted with a single inverted five spot injection pattern in heavy oil field is described.
Numerical thermal reservoir simulators generally take more calculation time than isothermal ones mainly due to strong nonlinearity of the equations caused by fluid viscosity change with tempararure. Therefore, the application to real field performance has been aimed at such a limited area as 1/8 symmetric element of a whole flood pattern. In order to establish the evaluation method for actual reservoir performance, the difficulties mentioned above should be overcome.
This paper presents the process and the results of simulation study using 1/8 symmetric model as the first step of the method of evolving a model construction for the simulation of a whole flood pattern. The results obtained here are discussed and proved to be basically reasonable in comparison with actual reservoir performance observed by means of several kinds of monitoring methods. The further steps of enlargement of the model construction will be carried out in the future.