Discussion on influencing factors of oilfield periodic water injection development

• Published in: AIP conference proceedings Vol. 2066; no. 1
• Main Author: Zhang, Liang
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Melville American Institute of Physics 29.01.2019
• Subjects: Computer simulation; Feasibility studies; Oil field equipment; Oil fields; Oil recovery; Permeability; Water flooding; Water injection
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.5089066

The mechanism of cycle water injection to improve the effect of water injection development is briefly analyzed. The applicable conditions of cyclic water injection and the feasibility calculation formula for evaluating the water injection into cyclic water injection are given. The factors affecting the cycle water injection effect are analyzed in detail. The sooner the better, but the best timing needs to be numerically simulated; the smaller the permeability, the longer the cycle of water injection; the more uneven the oil layer, the better the water injection effect of periodic water injection; the best effect of periodic water injection when the capillary force is moderate When the ratio of vertical permeability to horizontal permeability is 0.5, the effect of periodic water injection is the best; the system of water injection and oil recovery with asymmetric short-shooting long-term mining has the best effect of periodic water injection. A large number of field application tests abroad have proved that the use of periodic water injection can achieve better development results.