塔里木油田高温高矿化度油藏三次采油初步研究

Primary Study on EOR for High Temperature and Salinity Reservoirs in Tarim Basin

概述了塔里木高含水油藏主力油田塔中4油田和轮南油田的开发现状及目前面临的问题。提出了塔里木油田高温高矿化度油藏三次采油前期研究思路,重点突破口在于剩余油分布和新材料的研究。从高分子水凝胶、高分子树脂、有机无机复合材料及无机材料方面对剖面调整所需材料进行了初步研究。从表面活性剂如非离子-阴离子表面活性剂、多极表面活性剂和特殊表面活性复配方面对驱油剂进行了初步研究。

The exploitation status and existing issues are reviewed of Lunnan field and Tazhong-4 field in high water cut stage as major oil fields in Tarim basin. The primary research on EOR for reservoirs with high temperature, high salinity and high Ca and Mg ions are proposed. It is recognized that the key point should be focused on the remained oil distribution and new materials such as aqueous polymer gel, polymer resin, organic/inorganic composite material and inorganic material, which are suitable for profile control. And the nonionic-anionic surfactants, multi-polarization surfactants and special surfactants as oil displacement agents are technically and preliminarily studied in this paper.