摘要
针对海上低渗油藏注气方案设计受平台环境、油藏特征和工艺条件等众多因素影响而复杂烦琐的问题,将响应面方法引入水气交替驱方案的设计中。在确定了少量但具有代表性的气驱方案的基础上,通过对其结果的统计分析,形成了采收率指标与注气时机、水气比、周期注入段塞3个因素之间的预测模型与响应曲面,并在此基础上开展了注气参数优化设计。通过该方法可以对研究范围内的气驱方案进行高效地设计、预测和优化,简洁、直观地确定最佳气驱方案,科学、高效地实现设计目标,提高了海上低渗油藏气驱设计工作的效率和质量。
Aimed at the gas injiction icheme design influeiced by the reservoiricharicteristics,platform environment and pricessiconditions in offshore tight reservoirs,and so on,the response surfice method＂D –Optimal＂is introdiced to the design of the WAG flooding pricess. Based on the representative gas flooding icheme and the statistics analysis of their results,the prediction models and response surfice for the ricovery ratio index and gas injiction time,water/gas ratioicicle injiction plugins were presented,and the optimization design of the gas flooding parameters was investigated. The results show that the work efficieicy and quality of the low permeability reservoir gas flooding design in offshore has been improved.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2015年第2期101-106,共6页
Journal of Southwest Petroleum University(Science & Technology Edition)
基金
"十二五"国家科技重大专项(2011ZX05024–004)
关键词
海上低渗
注气
提高采收率
响应面
offshore tight reservoir
WAG
EOR
response surface
