Injection and Production Profile Modification in Waterflooding of Oil Reservoirs Utilizing Viscous Invert W/O Emulsion Pre-Flush
- سال انتشار: 1390
- محل انتشار: هفتمین کنگره ملی مهندسی شیمی
- کد COI اختصاصی: ICHEC07_640
- زبان مقاله: انگلیسی
- تعداد مشاهده: 1084
نویسندگان
Iranian Offshore Oil Company
چکیده
Normal oil production from layered heterogeneous reservoirs always results in uneven production of oil from different permeability layers. In secondary stage of production, water will penetrates more in high-permeable zone than low-permeable one, causing uneven injection profile as well. Inorder to produce oil more efficiently from all layers and to control the mobility in waterflooding process, invert water-in-oil emulsions were utilized. Four different viscous emulsion samples weredeveloped. Their rheological behaviour and stability were studied and experiments were conductedin order to investigate their use as a mobility control agent as well as providing selective plugging behaviour to limit the water penetration in high-permeable zones. Increasing the recovery factorand reducing the water-cut were considered as the criteria for evaluation of the emulsion performance. Experiment results revealed that the designed stable emulsions can be used properly both as a mobility control agent and selective plugging material as well.کلیدواژه ها
invert emulsions, viscous flooding, mobility control agent, selective plugging agent,reservoir heterogeneity, relative permeability modifierمقالات مرتبط جدید
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