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砾岩油藏原始非均质性极强,注采矛盾十分突出,部分层系存在明显水流优势通道,严重影响了注水开发效果。利用高强缓膨颗粒调堵剂具有在注入过程中缓慢膨胀的特点,能有效地进入地层深处,最大膨胀后能封堵高渗层和裂缝条带,达到深部有效封堵的目的,开展了砾岩油藏整体调驱矿场试验及效果分析。新疆六中东区块整体调堵效果表明,高强缓膨颗粒有效改善了砾岩油藏的严重非均质性和水驱开发效果,施工3年后试验区块累积增油34 226t,提高采收率8.38%。
The primary heterogeneity of conglomerate reservoir is very strong, the contradiction between injection and production is very prominent, and obvious channel of water flow exists in some strata, seriously affecting the water injection development effect. The use of high-strength slow-release particles plugging agent has the characteristics of slow expansion during injection can effectively enter the depths of the formation, the maximum expansion can block the high permeability layer and fracture strips, to achieve the purpose of an effective block in the deep, carried out Test and Effect Analysis on Conglomerate Reservoir General Flood Control Mine Drive. The results show that the high-strength slow-release particles effectively improve the serious heterogeneity of conglomerate reservoir and the development effect of water flooding. After 3 years of construction, the oil accumulation in the test block increased by 34 226 tons to improve the recovery Rate of 8.38%.