| Título: | Research on Profile Control and Water Shut-off Performance of Pre-crosslinked Gel Particles and Matching Relationship between Particle and Pore Size |
| Autores: |
SONG, Xin-wang; Research Institute of Geological Science of Shengli Oil Field, Sinopec, Dongying 257015, Shandong, China. CAO, Xu-long; Research Institute of Geological Science of Shengli Oil Field, Sinopec, Dongying 257015, Shandong, China CHI, Qing-sheng; The 3rd Oil production Area of Huanxiling Oil Production Factory, Huanxiling Liaohe Oilfield, 124114 LI, Dong-xu; The Center of EOR, China University of Petroleum, Beijing 102249 HOU, Ji-rui; The Center of EOR, China University of Petroleum, Beijing 102249 |
| Fecha: | 2010-04-15 |
| Publicador: | Advances in Natural Science |
| Fuente: |
 |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
| Tema: | No aplica |
| Descripción: | Experiments on injectivity and profile control performance of pre-crosslinked gel particles widely used in oilfields were done .The results show that, the injectivity of pre-crosslinked gel particle is poor Most of particles pile up in the front of sand pack, and the migration distance of pre-crosslinked gel particles is less than twenty centimeter, which lead to the formation of filter cake and the poor effects of depth profile control. The injection of pre-crosslinked gel particle is selectivity. In the early stage of profile control, the diversion rate of low permeability layer increases slightly. After long-term waterflooding, due to the easily breakthrough in higher permeability layers, the diversion rate of low permeability layer declines in comparison that before the operation. It is indicated that pre-crosslinked gel particles will harm low permeability layers. It is calculated and analyzed that the diameters of current pre-crosslinked gel particles are bigger than pore size. Theoretically, current pre-crosslinked gel particles are difficult to be applied in depth profile control. Key words: pre-crosslinked gel particle; profile control and Water Shutoff; particles diameter; pore size |
| Idioma: | Inglés |
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