| 模拟煤层气储层条件下煤岩渗透性实验研究 |
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| 引用本文： | 张建东.模拟煤层气储层条件下煤岩渗透性实验研究[J].科学技术与工程,2012,12(11):2543-2545. |
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| 作者姓名： | 张建东 |
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| 作者单位： | 1. 中国石油长庆油田分公司第二采油厂,庆阳,745100
2. 中国石油川庆钻探公司国际工程公司,内江,610056 |
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| 摘 要： | 储层煤岩特有的割理结构使其渗透性与常规砂岩储层不尽相同，本文以山西沁水盆地3#煤作为实验煤心，实验研究了围压、孔隙压力对煤岩渗透率的综合影响规律，并得到3#煤岩的裂缝体积压缩系数范围。研究表明，流体介质不同，储层煤岩渗透率在压降过程中变化趋势不同；储层煤岩裂缝体积压缩系数在整个煤层气开采过程中并非一恒定值。
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| 关 键 词： | 煤岩渗透率，双重介质，裂缝体积压缩系数 |
| 收稿时间： | 1/17/2012 8:55:40 PM |
| 修稿时间： | 2/16/2012 8:05:19 AM |
Experiment study of coal permeability under simulating in-situ coalbed methane reservoir |
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| zhangjiandong.Experiment study of coal permeability under simulating in-situ coalbed methane reservoir[J].Science Technology and Engineering,2012,12(11):2543-2545. |
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| Authors: | zhangjiandong |
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| Institution: | 2(No.2 Oil Production Site,Changqing Oilfields Co.,Ltd1.,Qingyang 745100,P.R.China; CNPC Chuanqing Drilling Engineering Co.,Ltd2.,Neijiang 610056,P.R.China) |
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| Abstract: | Unique coal cleat system make the permeability of the coalbed methane reservoir different with the conventional sandstone reservoirs, using # 3 coal of Qinshui as an experimental core, experimental study coal permeability under the confining pressure and pore pressure, obtain the range of fracture system pore volume compressibility. The results show that the variation tendency of coal permeability is different with the pore pressure reduced if the experimental fluid medium is different; fracture system pore volume compressibility of coalbed methane reservoir is not a constant value in the whole production process. |
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| Keywords: | coal permeability porous medium fracture system pore volume compressibility |
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