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| 1 | Parameters affect foaming and foam stability during foam drilling显示文摘The authors presented indoor practice experiments of parameters affect on foaming and foam stability. Experiments were carried out and special equipments were used to determine foaming and foam stability; tests were tabulated and charted. The effects of chemical and physical parameters on foaming and foam stability have been conducted. | Hazaea Mohammed Ould El Houssein Yarbana | 2007 | Global Geology2007，10，2： | 4 |
| 2 | Research and development on foam breaking and recycling technology in air-foam drilling显示文摘In recent years,air-foam combining the advantages of both liquid and air drilling has been utilized as a drilling medium. Air-foam drilling has proved its efficiency in numerous situations where serious problems were encountered,such as in fractured formations and depleted or high permeable zones. However,the major disadvantage of air-foam drilling system is that the foam can only be used once,so that an extremely large pit is required to contain the foam to allow sufficient room for cuttings and for the foam to dissipate. Moreover,it needs enormous volume prepared,consuming abundance of water and ingredient additives,which results in the high cost of foam drilling. The recycling foam fluid by using foam breaking technology is the only effective method to solve these problems associated with the known foam drilling. Various types of equipment and technique have been employed to suppress foam formation in biological and process equipment in foam drilling. The study described various methods of foam breaking technology,and the trend of the foam breaking technology for foam drilling is discussed. | CAO Pinlu ZHANG Jincheng WU Xia HUANG Jinyun | 2009 | Global Geology2009，12，4： | 2 |
| 3 | 压力对消泡器消泡能力的影响实验研究与数值模拟显示文摘泡沫钻进中,消泡有十分重要的环保和经济意义。但在实际生产中,现有的消泡器不能很好地达到消泡的要求,这就需要对消泡器做更进一步的深入研究。通过建立消泡器室内试验台,进行压力对消泡能力影响的试验,确定了压力与消泡率的关系,同时利用FLUENT软件中的VOF模型对泡沫在消泡器中流动时压力变化进行了数值模拟,模拟结果与实验结果是相符的。 | 亚尔巴 孙友宏 穆罕默德 | 2010 | 探矿工程(岩土钻掘工程)2010，37，4： | 1 |
| 4 | 贮能管消泡实验与数值模拟显示文摘为了研究贮能管对消泡器消泡能力的影响,进行了消泡器消泡能力室内试验。通过试验可知,贮能管的长度对泡沫的消泡率有很大影响。试验证明,随着贮能管长度变短,泡沫稳定性增大,消泡率提高。对不同长度(1m、2m、8m)贮能管的消泡率进行测试,结果是当贮能管长度为1m、直径为20cm时,其消泡率最高,达到73%左右。另外消泡率与气液比有关,当气液比α=100~200时,消泡率较高。同时借助FLUENT软件对该管中泡沫流动速度与泡沫压力变化进行了数值模拟分析。结果表明:泡沫流动速度与贮能管的长度及直径无关,而泡沫压力随着贮能管的长度变小而更加稳定,这有利于提高消泡效果。模拟结果与实验结果相符。 | 亚尔巴 孙友宏 | 2010 | 吉林大学学报(地球科学版)2010，40，5： | 0 |
| 5 | 消泡压力对消泡率的影响及基于数值模拟的消泡器结构优化设计显示文摘在泡沫钻进过程中,现有的消泡器往往不能很好地达到消泡的目的。笔者建立了消泡器室内试验台,进行了消泡压力对消泡器消泡能力的影响试验,通过测试不同压力与不同泵转速确定了消泡压力与消泡率的关系,同时借助FLUENT软件对消泡器的扩散管和消泡管内部的压力分布,进行了数值模拟与分析。根据分析结果对消泡器进行了优化设计,将消泡管的长度从15cm增加至65cm。对改进后的消泡器进行室内试验,其消泡率达到80%左右。 | Yarbana EL Houssein 孙友宏 Mohammed Hazaea | 2010 | 世界地质2010，29，3： | 0 |
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