| 影响特低渗气藏气体渗流能力因素分析 |
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| 引用本文： | 林光荣,卢燕,刘学刚,杜朝峰,刘秋兰.影响特低渗气藏气体渗流能力因素分析[J].辽宁工程技术大学学报(自然科学版),2009(Z1). |
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| 作者姓名： | 林光荣 卢燕 刘学刚 杜朝峰 刘秋兰 |
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| 作者单位： | 中国石油长庆油田分公司勘探开发研究院; |
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| 摘 要： | 为了有效地开发特低渗气藏,就必须搞清楚这类储层的渗流规律。通过室内模拟实验发现。储层基质渗透率的不同,气体的渗流特征也不同,压力越大,流量的增幅越大;在不含水的条件下不存在启动压力,含水饱和度对气体渗流能力影响很大,当含水达到一定值时,在储层中就会存在非达西渗流特征和启动压力梯度;净围压的变化对气体渗流也会产生一定的影响,特别是特低渗储层,随着净围压的增加,其流量随之减小。通过实验得出,含水饱和度和净围压变化对气体渗流能力影响最大。
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| 关 键 词： | 特低渗气藏 渗流 含水饱和度 净围压 |
Analysis of factors influencing capacity of gas flowing in ultra-low permeability gas reservoirs |
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| LIN Guangrong,lU Yan,LIU Xuegang,DU Chaofeng,LIU Qiulan.Analysis of factors influencing capacity of gas flowing in ultra-low permeability gas reservoirs[J].Journal of Liaoning Technical University (Natural Science Edition),2009(Z1). |
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| Authors: | LIN Guangrong lU Yan LIU Xuegang DU Chaofeng LIU Qiulan |
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| Institution: | LIN Guangrong,lU Yan,LIU Xuegang,DU Chaofeng,LIU Qiulan(Research Institute of Exploration and Development,PetroChina Changqing Oilfield Company,Xi'an 710021,China) |
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| Abstract: | In order to effectively develop the ultra-low permeability gas reservoirs,the rules of percolation in such kind of reservoirs must be figured out clearly.The experiment shows: in the reservoir,different matrix permeabilities lead to different gas flow inside reservoirs,the higher the pressure is,the greater the incremental of the flow rate will be;In the conditions without water there is no starting pressure,the water saturation has great impact on the capacity of the gas flow,When the water content ratio r... |
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| Keywords: | the extra-low permeability gas reservoirs percolation water saturation net confining pressure ground source heat pump(GSHP) |
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