砾岩油藏弱凝胶调驱技术的研究与矿场应用

Study of Indepth Weak Gel Flooding Fluid for Conglomerate Reservoir and Its Field Application

针对克拉玛依红山嘴油田红29井区砾岩油藏水驱特征,研制出了弱凝胶配方。其组成分别为:聚合物DQ1600 1500,交联剂75,除氧剂50,稳定剂500-700 mg／L。现场实施弱凝胶调驱2井次,增油7 291 t,投入产出比1:5．6,经济效益显著。

The composition of weak gel flooding fluid for conglomerate reservoirs of Hong - 23 wellsite in Karamayi Hongshanzui oilfield was developed as follows：polymer DQ 1600 1 500, crosslinking agent 75, deoxidizer 50, stabilizer 500 - 700 mg/L. The weak gel flooding fluid was applied in two injection wells. The oil yield incresaed to 7 291 tons. Input- output ratio was 1：5.6,showing obvious economic benefit.