| 裂缝性油藏控水堵水方法研究与应用 |
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| 引用本文： | 贾虎,蒲万芬,赵金洲,金发扬.裂缝性油藏控水堵水方法研究与应用[J].地质科技情报,2010,29(5). |
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| 作者姓名： | 贾虎 蒲万芬 赵金洲 金发扬 |
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| 作者单位： | 西南石油大学油气藏地质与开发工程国家重点实验室,成都,610500 |
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| 基金项目： | 国家科技重大专项"大型油气田及煤层气开发"专题项目"碳酸盐岩缝洞型油气藏高效开发技术应用" |
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| 摘 要： | 随着油田逐渐进入后期开采,调堵井的数量不断增加,所面临的问题是如何在高温、高盐以及裂缝性等恶劣油藏条件下提高采收率技术。目前凝胶类和颗粒类堵剂依然是裂缝性油藏化学调堵体系的主流;另外基于对水体分布、能量预测等油藏地质条件全面认识下的各种物理堵水技术也得到了较好应用。从裂缝性油藏控水堵水难点出发,介绍了国内外的配套技术,重点综述了恶劣油藏条件下的各种凝胶体系,并分析了提高凝胶体系热稳定性的研究思路,认为聚合物高温碳化作用对凝胶的使用有着变革性意义。用某种高吸水材料配成的软颗粒状凝胶完井液130℃高温下与低渗岩心动态污染时,在岩心端面形成强度高、韧性好的黄-黑色胶质暂堵层,极大地避免了漏失,降低了水相圈闭的损害,在中国东海天外天高温低渗气田A1s、A7完井中取得了较好应用效果。另外,丙烯酰胺与丙烯酸叔丁酯的共聚物(PAtBA)用聚乙烯亚胺作交联剂的凝胶体系在国外已得到了成功的应用,聚乙烯亚胺有着低毒、环境友好等诸多优点,研制出性能更优越的聚合物与之交联对未来的凝胶体系研究有着重要意义。最后从控水-堵水-治水整体思路出发,提出了对今后的研究设想。
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| 关 键 词： | 裂缝性油藏 控水堵水 凝胶 采收率 |
Application and Research of Various Water Control and Shutoff Methods in Fractured Reservoirs |
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| JIA Hu,PU Wan-fen,ZHAO Jin-zhou,JIN Fa-yang.Application and Research of Various Water Control and Shutoff Methods in Fractured Reservoirs[J].Geological Science and Technology Information,2010,29(5). |
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| Authors: | JIA Hu PU Wan-fen ZHAO Jin-zhou JIN Fa-yang |
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| Institution: | JIA Hu,PU Wan-fen,ZHAO Jin-zhou,JIN Fa-yang (State Key Laboratory of Oil and Gas Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China) |
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| Abstract: | With the development of mature oilfields,water control will be increasingly attractive to re-searchers.The IOR projects in complex reservoirs will become more common in future.Currently,gel and expandable polymer microspheres are still the mainstream techniques of chemical method.Several physical techniques for water shutoff have also been well applied.This paper starts with the difficulty of water control and shutoff in fractured reservoirs and introduces the successful application of several techniques,fo... |
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| Keywords: | fractured reservoir water control and shutoff gel recovery |
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