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普通稠油水淹层顶部剩余油水平井技术界限研究——以孤岛中二北Ng5为例 被引量:2

Technology limit research on exploiting remaining oil using horizontal well on the top of water-out zone in heavy oil reservoirs
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摘要 具有较大边底水的中等厚度的普通稠油油藏,长期以来利用直井开发,效果不佳。在高油价的有利条件下,针对该类油藏,提出了利用水平井挖潜,以孤岛中二北北部Ng5稠油区块为例,建立实际参数的概念模型,分不渗透隔层和无隔层两种类型,对水平井的开发方式、最小有效厚度、水平井垂向位置、排液量、井距及水平段长度进行了优化,给出了对应两种类型的水平井技术界限,现场实施取得了良好的开发效果。 Effects of using vertical wells to exploit heavy oil reservoirs with middle thickness and large-scaled bottom water was not good, a new method of exploiting remaining oil using horizontal wells was proposed. Taking Zhong'erbei Ng5 block in Gudao Oilfield as an example, conceptual models (non-permeable interlayer model and non-interlayer model) with actual parameters were built, development method of horizontal well, its minimum effective thickness, vertical position, fluid delivery, well spacing, and length of horizontal part were optimized, and technology limit of this 2 models were studied.
作者 周燕
出处 《海洋石油》 CAS 2009年第2期78-81,共4页 Offshore Oil
关键词 边底水 普通稠油 剩余油 水平井 技术界限 bottom water heavy oil reservoirs remaining oil horizontal well technology limit
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