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随着油田开发程度加深,常规油藏可采储量越来越少,深部挖潜价值越来越低。人们不得不把目光投向高温高盐、低渗特低渗、超稠油等非常规、条件苛刻的油藏。如何采取有效措施提高上述非常规油藏的采收率已成为当今油田开发的重点之一。为满足这些非常规油藏提高采收率的需求,采油表面活性剂的研究也在不断地深入开展。同时,在当前油价形势下,节能增效、降低无效循环已成为油田开发的另一重点。结合上述两个重点问题,讨论了油气开采用表面活性剂研究的新进展。
With the deepening of the development of oilfields, recoverable reserves of conventional reservoirs are getting less and less, and the value of deep excavation potential is getting lower and lower. People have to turn their attention to unconventional and harsh conditions such as high temperature and high salt, low permeability and low permeability, super heavy oil. How to take effective measures to improve oil recovery of unconventional reservoirs has become one of the focuses of oilfield development. In order to meet the demand of enhanced recovery of these unconventional reservoirs, the research on oil-extended surfactants has been continuously carried out. At the same time, under the current situation of oil prices, energy conservation and efficiency reduction and ineffective circulation have become another focus of oilfield development. Combining with the above two key issues, the recent developments in surfactants for oil and gas exploration are discussed.