摘要
孤东油田经过多年的强注强采,目前已进入特高含水开发期,综合含水量达94％,油井水淹情况严重,部分油藏边水活跃。针对这种情况,研制了一种AN-1型堵水剂并对其性能进行了评价。结果表明,AN-1型堵水剂的适应温度为50-90℃,其凝胶强度几乎不受地层pH值、温度和矿化度影响;在不同矿化度和岩芯原始渗透率下,均有很好的堵水效果。现场试验表明,该堵水剂堵水增油效果明显,适用于孤东油田的油井堵水。
Gudong Oilfield was in extra high water content and its synthetical moisture content was up to 94% due to water - injecting production for many years. The situation of water flood in oil well was serious. The border water in some reservoirs was active. The water - plugging agent AN - 1 was prepared to resolve the problem. Its performance was evaluated. The result showed that its adaptive temperature was 50-90℃. The pH value, temperature and mineralizing rate of stratum had little effect on its gel strength. It was very effective on plugging water in the stratum with various original permeability and mineralizing rate. The field test showed that the water - plugging a-gent was suitable for plugging water in oil wells of Gudong Oilield.
出处
《精细石油化工进展》
CAS
2004年第10期15-17,共3页
Advances in Fine Petrochemicals
关键词
孤东油田
AN-1型堵水剂
成胶性能
堵水效果
<Keyword>dong Oilfield, water - plugging agent, performance of gel, plugging water
