关键词: 盐间非砂岩, 水敏, 气敏, 岩芯实验, 提高采收率

Abstract: Intersalt layer nonsandstone reservior in Qianjiang Depression of Jianghan Basin contains plentiful oil and gas resources, the characterisitics of the formations include the thin monolayer, mutilayer in vertical, huge total thickness of the formation and connected and wildly spreaded oil blocks. Oil tests show that the formation in the depression has EOR potential while most of the wells have a decreasing production rate. In order to use the inartificial resourses in an effective way, the production rate in an acceptable scale should be hold, also, the final recovery rate should be increased in effective ways. Based on the sensitivities analyze of the intersalt layer nonesandstone reservoir and core tests sampling from Wangping well block 1 and Wangbei well block 115, this paper presents the best exploitation way for special wells of this reservior.The rational way of exploitation in Wangping Well 1 District is waterflooding, and that the best way of exploitation in Wangbei Well 115 District is nitrogen injection.

Key words: inter salt layer non sandstone, water sensitivity, gas sensitivity, core test, EOR