Studies to raise perforation position in Triassic reservoir with bottom water,Tahe Oil Field
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摘要: 底水碎屑岩油藏多井次的井筒剩余油监测表明,射孔段底水上升情况主要分为三类型仅底部层段水淹、层段全部水淹、层段部分水淹。通过对油层水淹类型与油藏性质分析,针对底水碎屑岩油藏油井已射孔层段顶部剩余油挖潜工作获得了较大的成功,多井次获得高产,该类措施有效率也较高。针对储层物性、生产因素等影响,射孔层段顶部剩余油较丰富层段的提高射孔位置措施将做为一个重要的挖潜手段,大大提高底水碎屑岩油藏开发。Abstract: Based on the supervisions of remaining oil in well bore,the perforated parts of elastic reser-voirs with bottom water are water-flooded in 3 different extents:a) only the bottom;b) the whole;c)some parts.According to the analyses of water-flood types and reservoir characteristics,the productionof remaining oil at the top of perforated part in elastic reservoir with bottom water has achieved success.Taking into consideration of the influences of reservoir physical properties and production mea-surements,raising the perforation position is an important way to improve yielding rate when remainingoil is rich at the top of perforated part.
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