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| 多功能煤储层钻井液动态污染评价系统 | |
| 引用本文： | 余维初,蒋光忠,汪伟英,胡三清,邹来方,田中兰,杨恒林. 多功能煤储层钻井液动态污染评价系统[J]. 钻井液与完井液, 2011, 28(4) |
| 作者姓名： | 余维初 蒋光忠 汪伟英 胡三清 邹来方 田中兰 杨恒林 |
| 作者单位： | 1. 长江大学化学与环境工程学院,湖北荆州 2. 中国石油集团钻井工程技术研究院,北京 |
| 基金项目： | 国家科技重大专项项目36课题1(2008ZX05036-001) |
| 摘 要： | 多功能煤储层钻井液动态污染评价系统是一种模拟煤储层真三轴应力条件下的钻井液对煤储层的侵入、以及侵入储层的深度和程度,同时还可以进行各种真三轴应力条件下的煤储层各向异性特征研究的实验仪器,属煤层气钻井液保护与伤害评价测试技术研究领域。该评价系统具有测量煤层煤心在各向异性应力条件下渗透率变化以及在真三维压力状态下煤储层钻井液动态污染前后的渗流变化规律的功能;能模拟正压差、负压差、平衡钻井过程中的钻井液动态污染过程,实现煤储层污染过程和渗流测试过程一体化,避免多次装夹煤样产生应力效应;适用于煤储层气液两相渗透率测试,解决了目前评价实验中常用的伪三轴夹持器不能在3个轴向上加载不同轴压的问题以及流体驱替实验、钻井液污染试验、气液两相驱替试验要单独进行的缺陷,具有流程清晰、操作方便、实验软件模块化、实验数据标准化等特点。 |
| 关 键 词： | 煤储层 真三轴应力 动态污染 实验研究 |
Research and Application of Multi-function Evaluation System for Dynamic Contamination of Drilling Fluid in Coal-bed Reservoir |
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| YU Weichu,JIANG Guangzhong,WANG Weiying,HU Sanqing,ZOU Laifang,TIAN Zhonglan,YANG Henglin College of Chemistry , Environmental Engineering,Yangtze University,Jingzhou,Hubei ,China. Research and Application of Multi-function Evaluation System for Dynamic Contamination of Drilling Fluid in Coal-bed Reservoir[J]. Drilling Fluid & Completion Fluid, 2011, 28(4) | |
| Authors: | YU Weichu JIANG Guangzhong WANG Weiying HU Sanqing ZOU Laifang TIAN Zhonglan YANG Henglin College of Chemistry Environmental Engineering Yangtze University Jingzhou Hubei China |
| Affiliation: | YU Weichu,JIANG Guangzhong,WANG Weiying,HU Sanqing,ZOU Laifang,TIAN Zhonglan,YANG Henglin College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou,Hubei 434000,China |
| Abstract: | The multifunction evaluation system for dynamic contamination of drilling fluid is a test instrument of drilling fluid protection and damage evaluation of coal reservoir,which is used for simulating coal formation invasion caused by drilling fluid and the extent and depth of contamination under the condition of true triaxial stress,and can research anisotropic characteristics of coal formation being stood various true triaxial stresses.The system can detect permeability variation of coal core in aeolotropic... |
| Keywords: | Coal-bed reservoir True triaxial stress Dynamic pollution Experimental study |
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