第39参第3期 2017年5月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017）03032806
DOI:10.13639/j.odpt.2017.03.014
Vol. 39 No. 3 May 2017
气井井筒气液两相环雾流压降计算新方法
刘通1.2王世泽？郭新江’国华3陈海龙’伍洲4
1.中国石化西南油气分公司博士后科研工作站；2.中国石化西南沟气分公司石油工程技术研究院：
3.中国石油新镜油田分公司勘探开发研究院；4.中国石化西南油气分公司川西采气厂
引用格式：刘通，王世泽，郭新江，浠国华，陈海龙，伍洲.气井井简气液两相环雾流压降计算新方法【J】.石油钻采工艺， 2017,39(3): 328-333.
摘要：气液两相环雾流是气并生产中最常见的流型之一，正确预测其并筒压降是气并节点系统分析、生产动态预测的重要基础。从环雾流气芯-液膜分相流结构出发，建立了环雾流压力梯度方程；其中持液率计算烯合考虑了液联及液滴的影响，通过引入Henstock&Hanratty无固次液膜厚度关系式，导出了液膜厚度计算显式方程，基于液滴沉降与液膜雾化的动态平衡，导出了适用于气并低液相雷诺数条件的液滴失带率关系式；学阻计算考感了减联与管壁的剪切应力，最终采用龙格呼塔法选代求解并筒压力。利用国内外91并次气井测压数据评价表明，新模型提高了整新气并和产水气并并筒环雾流压降预测准确度，优于传统的均匀流模型和分相流模型，而且能够获得液滴央带率、液膜厚度等特性参数，为油气图开发提供技术理论支持、
关键词：气并；并筒；压降；环雾流；液滴；液膜；分相流
中图分类号：TE37
文献标识码：A
New calculation method of gas-liquid two phase annular-mist flow pressure drop
ofwellboresingaswells
LIU Tong "2, WANG Shize', GUO Xinjiang", PAN Guohua', CHEN Hailong, WU Zhou
1. Pas-Doctoral Research Station of Sorthwesr Oil & Gas Branch, SINOPEC, Chengdar 610041, Sicharan, China
2. Perolerm Engineering Technology Institufe, Sourthwesr Oil & Gas Branch, SINOPEC, Deyang 618000, Sichran, Chinar; 3. Research Institarte of Exploration and Developmen, Xinjiang Oijfield Company, CNPC, Karamay 834000, Xinjiang, China;
4. Chaartxi Gas Prodiction Plant, Sourhwest Oil & Gas Branch, SINOPEC, Dejang 618000, Sichuan, Chind
Citation: LIU Tong, WANG Shize, GUO Xinjiang, PAN Guohua, CHEN Hailong, WU Zhou. New calculation method of gas-liquid two phase annular-mist flow pressure drop of wellbores in gas wells [ J ] . Oil Drilling & Production Technology, 2017, 39(3): 328-333.
Abstraet: Gas-liquid two phase annular-mist flow is one of the most common flow patterns in the production of gas wells and the important foundation of nodal system analysis and production performance prediction for the gas wells is correct prediction of the wellbore pressure drop. The pressure gradient equation for the annular-mist flow was established from the air core-liquid membrane separated phase flow structure of annular-mist flow. Therein, the contributions of liquid membranes and droplets were comprehensively considered in the liquid holdup calculation. By inducing Henstock & Hanratty dimensionless liquid membrane thickness relation formu-la, the explicit equation for the liquid membrane thickness calculation was derived. Based on the dynamic equilibrium of droplet settling and liquid membrane atomization, the droplet entrainment relation formula of low liquid phase Reynolds numbers applicable to gas wells was also derived. Besides, the shear stress of liquid membranes and tube walls was considered in the friction calculation and the wellbore pressure was finally solved by using Runge-Kutta iteration. The pressure test data evaluation for 91 gas wells at home and abroad shows that the new model has improved the prediction accuracy of the wellbore annular-mist flow pressure drop in the condensate gas wells
基金项目：国家科技重大专项"超深层高含疏气水平井高产稳产工艺技术研究"（编号：2016ZX05017-005-003)
第一作者：刘通(1986-),2014年毕业于西南石沟大学装博士学位，现主要从事沟气并多相流理论以及来气工程技术研究工作。通讯地址：
(618000)四川省德阳市龙泉山北路298号。E-mail:liutong697@126.com
万方数据