| 岩石压缩系数变化规律研究 |
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| 引用本文： | 王新海,宋岩,方海飞,李玉姣,谢又新.岩石压缩系数变化规律研究[J].石油天然气学报,2007,29(1):42-44. |
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| 作者姓名： | 王新海 宋岩 方海飞 李玉姣 谢又新 |
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| 作者单位： | 1. 油气资源与勘探技术教育部重点实验室(长江大学),湖北,荆州,434023
2. 塔里木油田分公司,新疆,库尔勒,841000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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中国石油天然气集团公司资助项目 |
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| 摘 要： | 通过对十八块岩样的覆压试验结果进行回归分析,得到了岩石压缩系数的变化规律.研究表明:岩石压缩系数随覆压孔隙度、覆压渗透率的增大而增大,岩石压缩系数的变化率通常是随覆压孔隙度、覆压渗透率的增大而增大.岩石压缩系数与覆压孔隙度、覆压渗透率之间的关系大多数呈二次多项式.压缩系数与有效覆压之间通常呈指数递减,压缩系数的递减率通常是随有效覆压的增大而减小.
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| 关 键 词： | 岩石压缩系数 覆压渗透率 覆压孔隙度 有效覆压 岩石压缩系数 变化规律 研究 Compressibility Rock Laws 递减率 指数递减 二次多项式 关系 变化率 渗透率 孔隙度 回归分析 结果 试验 岩样 |
| 文章编号： | 1000-9752（2007）01-0042-03 |
| 修稿时间： | 2006-10-10 |
Transforming Laws of Rock Compressibility |
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| WANG Xin-hai,SONG Yan,FANG Hai-fei,LI Yu-jiao,XIE You-xin.Transforming Laws of Rock Compressibility[J].Journal of Oil and Gas Technology,2007,29(1):42-44. |
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| Authors: | WANG Xin-hai SONG Yan FANG Hai-fei LI Yu-jiao XIE You-xin |
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| Abstract: | By regression analysis on overburden pressure experimental results of 18 rock samples, the transforming laws of rock compressibility are obtained. Study indicates that the rock compressibility rises with the increase of porosity and permeability of overburden pressure the rate of compressibility changes rises with the increase of overburden porosity and permeability, the relationship between the compressibility and overburden porosity and permeability is quadratic expression, the relationship between the compressibility and effective overburden pressure is exponential expression, while the decrease of compressibility is often with the increase of effective overburden pressure. |
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| Keywords: | rock compressibility overburden permeability overburden porosity effective overburden pressure |
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