| 煤层气井N2泡沫压裂技术探讨 |
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| 引用本文： | 刘长延. 煤层气井N2泡沫压裂技术探讨[J]. 特种油气藏, 2011, 0(5): 114-116,141,142 |
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| 作者姓名： | 刘长延 |
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| 作者单位： | 中石化中原石油勘探局; |
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| 基金项目： | 国家科技攻关项目“沁水盆地南部无烟煤煤层气田开采技术研究”(2004BA616A-08-01); 中原油田分公司重大攻关课题“煤层气藏压裂增产技术研究”(2006208-1) |
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| 摘 要： | 针对中国煤储层三低一高的特点和常规压裂效果差、煤层气井产量低的现状,提出了煤层气井N2泡沫压裂技术。通过实验研究,优选气相、液相,优化泡沫配方,提高铺砂浓度,完善施工技术、储层保护和压后排液措施,现场应用2口井,效果显著。实践证明,N2泡沫压裂技术可有效提高煤层气井产量,推广应用前景较好。
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| 关 键 词： | N2泡沫 压裂 煤层气井 施工技术 效果 |
Approach to N_2 foam fracturing technique for CBM wells |
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| LIU Chang-yan. Approach to N_2 foam fracturing technique for CBM wells[J]. Special Oil & Gas Reservoirs, 2011, 0(5): 114-116,141,142 |
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| Authors: | LIU Chang-yan |
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| Affiliation: | LIU Chang-yan(Zhongyuan Petroleum Exploration Bureau,SINOPEC,Puyang,Henan 457164,China) |
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| Abstract: | Coal measures in China are characterized by three lows and one high,poor effect of conventional fracturing and low production,so that N2 foam fracturing has been proposed for CBM wells.Experimental study has been conducted to optimize gas and liquid phases and foam formula,and to improve sand-packing concentration,operation technique,reservoir protection and postfrac fluid discharge measures.Field application in two wells has achieved remarkable result,showing N2 foam fracturing can effectively increase the... |
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| Keywords: | N2 foam fracturing CBM well operation technique result |
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