| 不同类型裂缝对气井产能影响 |
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| 引用本文： | 熊钰,黄仕林,唐洪明,刘江斌,何锡俊.不同类型裂缝对气井产能影响[J].特种油气藏,2011,18(4):98-101,140. |
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| 作者姓名： | 熊钰 黄仕林 唐洪明 刘江斌 何锡俊 |
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| 作者单位： | 西南石油大学,四川成都,610500 |
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| 基金项目： | 国家重大科技专项“低渗油气田高效开发钻井优化设计技术研究”(2008ZX05022-001) |
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| 摘 要： | 在低渗、特低渗气藏开发过程中,裂缝对气井的产能和稳产能力起着主导作用。选取了某低渗气田在不同沉积微相下的含有裂缝的岩心进行了专门的实验研究。详细分析了半充填缝、未充填缝的应力敏感,评价了裂缝宽度随有效应力的变化以及其对产能的贡献差异。实验研究表明:未充填缝的应力敏感性较强,对气井初期产能贡献较大;半充填缝的应力敏感性较弱,对气井中后期产能起主导作用;特低渗气藏产量在很大程度上取决于未充填缝与充填缝的比例。
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| 关 键 词： | 半充填缝 未充填缝 应力敏感 气井产能 裂缝闭合 |
Effects of different fracture types on gas well productivity |
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| XIONG Yu,HUANG Shi-lin,TANG Hong-ming,LIU Jiang-bin,HE Xi-jun.Effects of different fracture types on gas well productivity[J].Special Oil & Gas Reservoirs,2011,18(4):98-101,140. |
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| Authors: | XIONG Yu HUANG Shi-lin TANG Hong-ming LIU Jiang-bin HE Xi-jun |
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| Affiliation: | XIONG Yu,HUANG Shi-lin,TANG Hong-ming,LIU Jiang-bin,HE Xi-jun(Southwest Petroleum University,Chengdu,Sichuan 610500,China) |
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| Abstract: | Fractures play a leading role in gas well productivity and rate maintenance capability in the development process of low and ultra-low permeability gas reservoirs.Special experimental study has been conducted with fractured cores of different sedimentary microfacies from a low permeability gas field.Stress sensitivity of semi-filled fractures and unfilled fractures has been analyzed in detail,and the change of fracture width with effective stress and its contribution difference to productivity have been eva... |
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| Keywords: | semi-filled fracture unfilled fracture stress sensitivity gas well productivity fracture closure |
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