摘要
水力喷射工具是水力喷射压裂和喷射酸化工艺的重要设施,它是将流体压力转化为速度的一个装置。其中喷嘴是喷射工具喷射射流的执行元件。文章运用工程流体力学原理确定了喷嘴的结构形状和几何参数,并根据能量守恒、动量守恒原理和伯努利原理对喷射关键参数进行了理论计算,根据喷嘴结构参数并结合现场条件设计出了喷射工具。在材料选择上,考虑工作液体可能为酸液,优选出了耐腐蚀的高强度碳化硅陶瓷喷嘴。最后,根据现场碳酸盐岩清水喷射实验结果,该喷嘴仅用清水在40MPa驱动压力,110L/min排量下达到了破岩效果,延伸了岩心孔道。从而验证了喷嘴设计的合理性以及喷射破岩的有效性,该工具的设计和开发对喷射压裂和喷射酸化技术具有现场实用价值。
The hydraulic jet tool is an important part of hydrajet-fracturing fracturing and jet acidizing,it is an equipment of converting fluid pressure into speed. Nozzle is an actuator of jet flow. In this paper,using engineering fluid mechanics principles to determine the structure and geometric parameters of the nozzle,and the key parameters of jet were calculated based on the principle of energy conservation,momentum conservation,Bernoulli,and a jetting tool was designed according to nozzle structural parameters and site conditions. In terms of material selection,a corrosion-resistant high-strength silicon carbide ceramic nozzle was chosen. The field experimental results of jetting water in carbonate rock showed that the nozzle reached rock breaking effect and extended core channel in condition of 40MPa water drive pressure and 110L/min displacement. The rationality of the nozzle design and the effectiveness of breaking rock were verified.
出处
《钻采工艺》
CAS
北大核心
2013年第2期90-92,11,共3页
Drilling & Production Technology
关键词
喷射工具
伯努利方程
局部压耗
喷射试验
jetting tool,bernoulli equation,local pressure loss,jet test
作者简介
杨光炼（1974-），工程师，2000年毕业于中国石油大学（华东）石油工程专业，现在川庆钻探工程有限公司钻采工程技术研究院从事油气井试油测试作业。地址：（618300）四川省广汉市中山大道88号，电话：0838—5152115，E—mail：ygl749@163．com
