摘要
研究了特低渗透油藏油井的流入动态,认为储层应力敏感性和溶解气是导致特低渗透油藏压裂水平井流入动态曲线存在"拐点"的主要原因。在此基础上,利用油藏数值模拟软件,建立了考虑应力敏感性和溶解气影响的特低渗透油藏压裂水平井模型,计算了不同裂缝条数、裂缝半长的压裂水平井流入动态,分析了不同裂缝参数对压裂水平井合理井底流压的影响,为特低渗透油藏压裂水平井合理工作制度的确定提供了理论基础。
The inflow performance of oil wells is studied for ultra-low permeability reservoirs,and it is believed that stress sensitivity and dissolved gas are major reasons for the inflection point on the inflow performance curve of fractured horizontal well in ultra low permeability reservoir.On this basis,a fractured horizontal well model is established for ultra-low permeability reservoir by using numerical reservoir simulation with consideration of stress sensitivity and dissolved gas,thus calculated the inflow performance of different fracture numbers and fracture half lengths,analyzed the impact of fracture parameters on flowing bottom hole pressure,and provided theoretical basis for determination of reasonable work system.
出处
《特种油气藏》
CAS
CSCD
北大核心
2012年第3期90-92,155,共3页
Special Oil & Gas Reservoirs
基金
国家重大专项"复杂结构井优化设计与控制关键技术"(2011ZX05009-005)部分研究成果
关键词
压裂水平井
特低渗透油藏
流入动态
应力敏感性
溶解气
数值模拟
fractured horizontal well
ultra-low permeability reservoir
inflow performance
stress sensitivity
dissolved gas
reservoir simulation
