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海南三断块综合含水高,注水效果逐渐变差,本文针对海南三块的特点研制了一种双凝胶体系。该双凝胶体系不需要交联剂,为均一体系,靠温度形成凝胶体系,高矿化度和高盐体系对其影响较小,凝胶体系均匀,具有一定强度,能对地层中的高渗透通道产生一定封堵作用,使后续注入水绕流至中低渗透层,既有调剖作用,又有驱油作用,同时解决了油水同层井的选择调剖问题。
Hainan fault block integrated high water content, water injection effect gradually worsened, this article in view of the characteristics of three Hainan developed a double gel system. The double-gel system does not require a cross-linking agent and is a homogeneous system, forming a gel system by the temperature. The high salinity and high salinity systems have less effect on the double-gel system. The gel system is uniform and has certain strength, High permeability channels have a certain blocking effect, so that subsequent injection of water around the flow to the low permeability layer, both profile control, but also the role of oil displacement, and solve the oil and water control of the same profile of the same well.