| Título: | Evaluation of the Gel Profile Control Agent Polyacrylamide in Enhanced Oil Recovery |
| Autores: | Jianguang, WEI; Institute of Petroleum Engineering of Northeast Petroleum University, Daqing, Heilongjiang |
| Fecha: | 2013-03-31 |
| Publicador: | Advances in Petroleum Exploration and Development |
| Fuente: |
 |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
| Tema: |
Profile control agent; Anionic; Delayed cross-link |
| Descripción: | Based on the system of anionic delayed cross-link polymer gel type deep profile control agent, experiments are conducted to evaluate the performance of long-term thermal stability, shearing resistance, and compatibility with natural debris of profile control agent and compatibility with ASP compound system. Besides, experiments are completed to simulate core displacement profile controlling and evaluate effect of oil displacement. Formula of anionic delayed cross-link polymer gel profile control agent with ideal long-term stability is confirmed. Profile control effect referred to core with diverse permeability and influence law of different injection time and injection rate on effect of oil displacement. Following conclusions are made according to the research. Long-term thermal stability, shearing resistance, and compatibility with natural debris of profile control agent and compatibility of ASP compound system of anionic delayed cross-link polymer gel profile control agent all have good performance, as well as core plugging effect and resistance to erosion. Displacing effect varies with the profile control agent injecting time, which shows, injection before polymer displacing proves the best, injection during polymer displacing the second, and injection after polymer displacing the worst. At the same time, the value of enhanced oil recovery increases with the injection rate of profile control agent increasing, however, when the rate comes to the point of 0.1 pv, the increasing extent begins to slow down.Key Words: Profile control agent; Anionic; Delayed cross-link |
| Idioma: | Inglés |
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