Petroleum Reservoir Evaluation and Development >
2020 , Vol. 10 >Issue 5: 114 - 119
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2020.05.017
Comparison and analysis of stage feature of in situ combustion
Received date: 2019-05-24
Online published: 2020-09-24
The division of combustion stage is significance to fire drive, which can guide the production design and control in site. However, the characteristics of the previous combustion stage division methods are one-sided without considering many factors, and the applicability of its parameter index is not strong. In order to obtain a more comprehensive combustion phase division and oil displacement characteristic of in situ combustion（ISC）, the characteristics of different fire drive stages are studied by the experiment of one-dimensional combustion tube and the comparison of numerical simulation and field example of ISC. Meanwhile, the production dynamics and the characteristics of combustion front propulsion in the process of in situ combustion are compared and analyzed. 10 parameters, such as yield increase multiple, water cut, air/oil ratio, oxygen content of production well, and combustion leading edge propulsion velocity, are selected for the stage analysis to obtain the stage characteristics, which is used as the index of stage division and contrast. The conventional fire drive is divided into four stages, while the fire drive after steam huff and puff is divided into five stages. The reference standard for the division of combustion stage is established, guiding the on-site production.
Haiyan JIANG , Xiaoqi LI , Chengguo GAO , Zongxiao REN , Shibao YUAN . Comparison and analysis of stage feature of in situ combustion[J]. Petroleum Reservoir Evaluation and Development, 2020 , 10(5) : 114 -119 . DOI: 10.13809/j.cnki.cn32-1825/te.2020.05.017
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