第39参第2期 2017年3月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)02021806
DO1:10.13639/j.odpt.2017.02.017
Vol. 39 No. 2 Mar.2017
考虑界面张力和液滴变形影响的携液临界流量模型
李元生藤赛男’杨志兴廖恒杰】马恋李宁】
1.中海石油（中国)有限公司上海分公司研究院；2.中国石化上海海洋油气分公司期探开发研究院
引用格式：季元生，幕赛男，杨志兴，厚位杰，马恋，季宁，考虑界面张力和液满变形影响的携减临界流量模型（J」，石油钻采工艺，2017,39(2)：218-223
摘要：现有的携液临界流量模型通常认为界面张力及变力系数为常数，急喀温度及压力对界面张力、液滴尺寸及液滴变形对变力系数的影响，造成预测携液临界流量的结聚与实际结有较大差异。为了更准确预测气并携液临界流量，首先通过分段拟合界面张力实验数据，建立界面张力公式，然后引入变形减满史力系数公式及液滴变形程度和液滴尺于之间的关系式，得到考感界面张力和液滴变形影响的携液临界流量模型。研究结果表明，温度越高，压力越大，界面张力越小，祺液临界流量越小；液滴尺寸越大，液滴变形越严重，液滴高宽比越小，史力系数越大，携液临界流量越小。实验表明，模型预测数据与气井磁观现液滴积液实验数据基本响合一致，其准确度选选高予Tuner模型和季阅模型。新模型能够更加准确预测不同减滴尺于下的据液临界流量，符合气田开发规律，为油气田开发提供技术指导，
关键词：界面张力；液滴变形；液滴尺寸；电力系数；积液
中图分类号：TE37
文献标识码：A
Critical liquid carrying flowrate model with consideration of interfacial tension
anddropletdeformationeffect
LI Yuansheng , TENG Sainan', YANG Zhixing , LIAO Hengjie', MA Lian', LI Ning 1. Research Institarte of Shanghai Branch, CNOOC(China) Co., Ld, Shanghai 200335, China;
2. Exploration and Developmenr Research Institufe of Shanghai Ofishore Oil and Gas Compary, SINOPEC, Shanghai 200120, China
Citation: LI Yuansheng, TENG Sainan, YANG Zhixing, LIAO Hengjie, MA Lian, LI Ning. Critical liquid carrying flow rate model with consideration of interfacial tension and droplet deformation effect [J] . Oil Drilling & Production Technology, 2017, 39(2): 218-223
Abstraet: At present, the interfacial tension and drag coefficient are usually considered as the constants by the critical liquid carry-ing flow rate model, and the effect of temperature and pressure on the interfacial tension and the influence of droplet size and deforma-tion on drag coefficient both are neglected. Thus, the prediction of critical liquid carrying flow rate has great difference from the actual results. In order to predict the critical liquid carrying flow rate of the gas wells more accurately, first, the interfacial tension formula was established by segmental fitting the experimental data of the interfacial tension; then, the critical liquid carrying flow model with consideration of the effect of the interfacial tension and droplet deformation was obtained by introducing the deformable droplet drag coefficient formula and the relationship formula between the droplet deformation degree and the droplet size. The research results show that the higher the temperature and the pressure are, the smaller the interfacial tension and critical liquid carrying flow rate are. Besides, the bigger the droplet size is and the more serious the droplet deformation is, the smaller the height-width ratio is, the bigger the drag coefficient is and the smaller the critical liquid carrying flow rate is. The experimental results indicate that the model can agree well with the experimental data of microscopic droplet effusions of the gas wells. Moreover, the new model can predict the critical liquid carrying flow rate with different droplet sizes more accurately and be more suitable to the development rules of the gas fields.
Key words: interfacial tension; droplet deformation; droplet size; drag coefficient; effusions
基金项目：国家科技重大专项“东海厚层非均质性大型气田有效开发关键技术"（编号：2016ZX05027-004)。
第一作者：李元生（1986-),2015年毕业于中国石油大学（北京)油气田开发工程专业，茂博士学位，现从事菱析气蓝、低渗气藏开发技术
研究，工程师。通试地址；(200335)上海市长宁区通协路388号A647宝。E-mail；lys6891@163.con
万方数据