In order to effectively control the dust in the underground coal mine,this study proposes and develops a new technology for dust control by foam,and briefly demonstrates the advantage of the foam technology for dust c...In order to effectively control the dust in the underground coal mine,this study proposes and develops a new technology for dust control by foam,and briefly demonstrates the advantage of the foam technology for dust control,such as the good isolation performance,large contact area,high wetting ability,strong adhesion and so on.Besides,the details of the technology are introduced,including the foam agent,foam generator,and foam production process.Then the paper studies the relationship between the foaming agent concentration and liquid surface tension,and explains the principle of the foam generator.The technology is applied in heading face.The application results show that the foam has a remarkable effect on dust control in underground coal mines.展开更多
采用高温高压泡沫评价装置对自制的发泡剂SH-1进行CO_2泡沫性能的测试,考察了SH-1在不同压力、温度、矿化度及用量下的CO_2泡沫性能,并研究了SH-1用量、注入速率和泡沫质量对CO_2泡沫封堵能力的影响。实验结果表明,矿化度和压力的增加,...采用高温高压泡沫评价装置对自制的发泡剂SH-1进行CO_2泡沫性能的测试,考察了SH-1在不同压力、温度、矿化度及用量下的CO_2泡沫性能,并研究了SH-1用量、注入速率和泡沫质量对CO_2泡沫封堵能力的影响。实验结果表明,矿化度和压力的增加,有利于泡沫性能的增强;随温度的升高,泡沫稳定性降低;随SH-1用量的增加,泡沫半衰期呈先增大后减小的趋势。在SH-1用量为0.30%(w)、注入速率为2 m L/min、泡沫质量为80%(φ)时,SH-1的阻力因子达184的峰值,是一种优良的CO_2流度控制剂,具有较好的应用前景。展开更多
乍得潜山地层微裂缝发育丰富,地层压力系数在1以下,采用常规钻井液体系往往导致地层发生恶性漏失,针对该技术难题,提出采用可循环微泡钻井液钻潜山储层。合成出一种可用于可循环微泡钻井液的发泡能力强同时具有稳泡能力的发泡剂GWFOM-LS...乍得潜山地层微裂缝发育丰富,地层压力系数在1以下,采用常规钻井液体系往往导致地层发生恶性漏失,针对该技术难题,提出采用可循环微泡钻井液钻潜山储层。合成出一种可用于可循环微泡钻井液的发泡能力强同时具有稳泡能力的发泡剂GWFOM-LS,在120、150℃时0.5%GWFOM-LS的发泡体积分别为720 m L和400 m L以上,其抗温能力达到130℃,抗盐能力达10%,抗钙能力达0.5%。基于该发泡剂优选出密度范围在0.70~0.96 g/cm^3的可循环微泡钻井液体系。该体系在乍得Baobab C1-13井裂缝发育的潜山油层进行了应用。现场应用表明,该发泡剂配制的可循环微泡钻井液性能稳定,而且具有较好的携岩性能和储层保护性能,利于井下工具信号传导,解决了钻井过程中潜山地层恶性漏失问题,为今后潜山储层开发奠定了技术基础。展开更多
基金The financial support by the National Natural Science Foundation of China (No.51104153)the Fundamental Research Fundsfor the Central Universities (No.2011QNB11)
文摘In order to effectively control the dust in the underground coal mine,this study proposes and develops a new technology for dust control by foam,and briefly demonstrates the advantage of the foam technology for dust control,such as the good isolation performance,large contact area,high wetting ability,strong adhesion and so on.Besides,the details of the technology are introduced,including the foam agent,foam generator,and foam production process.Then the paper studies the relationship between the foaming agent concentration and liquid surface tension,and explains the principle of the foam generator.The technology is applied in heading face.The application results show that the foam has a remarkable effect on dust control in underground coal mines.
文摘采用高温高压泡沫评价装置对自制的发泡剂SH-1进行CO_2泡沫性能的测试,考察了SH-1在不同压力、温度、矿化度及用量下的CO_2泡沫性能,并研究了SH-1用量、注入速率和泡沫质量对CO_2泡沫封堵能力的影响。实验结果表明,矿化度和压力的增加,有利于泡沫性能的增强;随温度的升高,泡沫稳定性降低;随SH-1用量的增加,泡沫半衰期呈先增大后减小的趋势。在SH-1用量为0.30%(w)、注入速率为2 m L/min、泡沫质量为80%(φ)时,SH-1的阻力因子达184的峰值,是一种优良的CO_2流度控制剂,具有较好的应用前景。
文摘乍得潜山地层微裂缝发育丰富,地层压力系数在1以下,采用常规钻井液体系往往导致地层发生恶性漏失,针对该技术难题,提出采用可循环微泡钻井液钻潜山储层。合成出一种可用于可循环微泡钻井液的发泡能力强同时具有稳泡能力的发泡剂GWFOM-LS,在120、150℃时0.5%GWFOM-LS的发泡体积分别为720 m L和400 m L以上,其抗温能力达到130℃,抗盐能力达10%,抗钙能力达0.5%。基于该发泡剂优选出密度范围在0.70~0.96 g/cm^3的可循环微泡钻井液体系。该体系在乍得Baobab C1-13井裂缝发育的潜山油层进行了应用。现场应用表明,该发泡剂配制的可循环微泡钻井液性能稳定,而且具有较好的携岩性能和储层保护性能,利于井下工具信号传导,解决了钻井过程中潜山地层恶性漏失问题,为今后潜山储层开发奠定了技术基础。
