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喇嘛甸油田特高含水期水驱开发效果.PDF

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  2016年8月             大庆石油地质与开发 Aug , 2016                     第 35 卷第 4 期 Petroleum Geology and Oilfield Development in Daqing              Vol35 No4 DOI: 103969/ JISSN1000⁃3754201604015 喇嘛甸油田特高含水期水驱开发效果 肖千祝 (大庆油田有限责任公司第六采油厂, 黑龙江 大庆  163114) 摘要:喇嘛甸油田是非均质多油层砂岩油田, 经长期注水驱替后地下油水分布十分复杂, 剩余油在空间上呈高度 分散状态。 近年来实施了大量挖潜措施, 有必要对特高含水期水驱开发效果进行分析与评价。 选取递减率、 含 水上升率、 存水率、 地层压力和水驱控制程度等指标对开发效果进行评价。 评价结果表明: 自然递减率、 含水 上升率得到有效控制; 存水率较高、 地层压力保持合理水平, 地层能量充足, 具有较高生产能力; 水驱控制程 度高, 各类油层得到有效动用; 面临综合含水率高、 剩余油分布高度零散、 各层系各套井网含水率差别变小, 水驱挖潜难度增大等问题。 对油田水驱开发效果评价, 为油田高含水期挖潜提供了科学指导。 关 键 词:特高含水期; 递减率; 存水率; 地层压力; 水驱控制程度 中图分类号: TE341      文献标识码: B      文章编号: 1000⁃3754 (2016) 04⁃0078⁃04 DEVELOPED EFFECTS OF LAMADIAN OILFIELD AT THE STAGE OF EXTRA⁃HIGH WATER CUT XIAO Qianzhu (No6 Oil Production Plant of Daqing Oilfield Co. Ltd.,Daqing 163114,China) Abstract: Lamadian Oilfield is characterized by heterogeneous multi⁃layered sandstone oil reservoirs,after water⁃ flooded for quite a long time,the distributions of the underground oil and water are rather complex,and moreover the remained oil is highly decentralizedinthe space.Inrecentyears,alot of potential⁃tappingmeasureshavebeen implemented,so it is necessary to analyze and evaluate the developed effects at the stage of extra⁃high water cut. The achievementsshow that natural declinerate andwatercut rising/ escalatingrate arewell controlled;the netwa⁃ ter injection percent ispretty higher,theformation pressuresare reasonably maintained,so theformation energy is sufficient and the production capacity is very higher;the waterflooding controlled degree is favorite,each kind of the oil layer iswell developed;while t
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