硼交联氮气泡沫压裂液对流换热特性研究  

Convective Heat Transfer of Borate-Crosslinked Nitrogen Foam Fracturing Fluid

作　　者：沈林华[1] 王树众[1] 段百齐[1] 管保山[2] 慕立俊[2] 周晓群[2] 赵威[1] 王亮[1] 张钦明[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室 [2]长庆油田公司油气工艺技术研究院

出　　处：《石油与天然气化工》2005年第3期196-199,共4页Chemical engineering of oil & gas

摘　　要：在大型超高压(30MPa)泡沫压裂液实验回路上,对实际施工条件下表现为非牛顿流体性质的伴氮压裂液的两相管流对流传热特性进行了研究,得出了压力、温度、泡沫质量和流量对氮气泡沫压裂液对流传热特性的影响规律,并提出了用于计算施工条件下氮气泡沫压裂液的对流换热系数关联式。实验表明:泡沫压裂液的平均Nu数主要取决于温度、泡沫质量和流量,压力的影响较小,压力对它的影响在不同泡沫质量和温度时有不同的趋势。Experiment was performed on a large-scale test loop at 30MPa to investigate the influences of pressure, temperature, foam quality and flow rate on the convective heat transfer characteristics of nitrogen foam fracturing fluid. A new correlation deduced from experimental dates was proposed for predicting the average surface heat transfer coefficient. The nitrogen foam fracturing fluid is a two-phase fluid consisting of supercritical gas and non-Newtonian liquid. The convective heat transfer characteristics are complex. The experimental results were explained with two-phase fluid mechanics. To average Nu number of foam fracturing fluid,the effect of two phase constituent and rheological behavior are some times more than each phase properties. The influence of temperature is the largest one in the phase properties, and the influence of pressure is different at different temperature and foam quality.

关 键 词：氮气泡沫压裂液 流传热特性 温度 泡沫质量 流量 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]