利用X衍射、薄片鉴定、水驱敏感性流动试验等方法,对富县探区L6P3井区长2储层敏感性进行研究,主要分析了储层的速敏性、水敏性、酸敏性、碱敏性和盐敏性。研究结果表明,研究区储层表现为弱速敏、中等偏弱水敏、中等偏弱盐敏、储层改善的酸敏、中等偏强的碱敏。因此长2储层的敏感性整体上偏弱,有利于注水开发,但在勘探开发过程中要注意碱性溶液对储层的伤害。 The sensitivity of Chang 2 reservoir in L6P3 well area in Fuxian exploration area was studied by means of X-ray diffraction, thin slice identification and water-flooding sensitivity flow test. The effects of velocity sensitivity, water sensitivity and acid sensitivity , Alkali sensitivity and salt sensitivity. The results show that the reservoirs in the study area are acid-sensitive and medium-strong alkali-sensitive with weak speed-sensitive, medium-weak water-sensitive, medium-weak salt-sensitive, and reservoir improvement. Therefore, the sensitivity of Chang 2 reservoir is weak on the whole, which is beneficial to waterflooding development. However, it is necessary to pay attention to the harm of alkaline solution to the reservoir during exploration and development.