[1]吴墨染,崔雷,李盈,等.水平气井全井段气水两相流动数值模拟分析[J].油气井测试,2022,31(01):1-7.[doi:10.19680/j.cnki.1004-4388.2022.01.001]
　WU Moran,CUI Lei,LI Ying,et al.Numerical simulation analysis of gaswater twophase flow in the whole well section of horizontal gas well[J].Well Testing,2022,31(01):1-7.[doi:10.19680/j.cnki.1004-4388.2022.01.001]
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水平气井全井段气水两相流动数值模拟分析()
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《油气井测试》[ISSN:1006-6977/CN:61-1281/TN]

卷:
31
期数:
2022年01期
页码:
1-7
栏目:
出版日期:
2022-02-25

文章信息/Info

Title:
Numerical simulation analysis of gaswater twophase flow in the whole well section of horizontal gas well
文章编号:
1004-4388(2022)01-0001-07
作者:
吴墨染1; 崔雷2; 李盈2; 王天意2; 刘墨2; 王洪军2
1.中国石油集团渤海钻探工程有限公司第一钻井分公司 天津 300280
2.中国石油集团大庆油田有限责任公司大庆钻探工程公司试油测试公司 吉林松原 138000
Author(s):
WU Moran1;  CUI Lei2;  LI Ying2;  WANG Tianyi2;  LIU Mo2;  WANG Hongjun2
1.No.1 Drilling Company, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300280, China
2.Oil Testing Company, CNPC Daqing Drilling Engineering Company, Songyuan, Jilin 138000, China
关键词:
水平井; 全井段; 气水两相流动; 数值模拟; 积液; 相似原理; 持液率; 影响因素
Keywords:
horizontal well;  full well section;  gas water twophase flow;  numerical simulation;  effusion;  similarity principle;  liquid holdup;  influence factor
分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2022.01.001
文献标志码:
A
摘要:
水平井井筒内气水两相流动规律和积液过程与直井差异较大。为明确水平井气水两相流动规律，建立水平井积液识别方法，利用相似原理，建立水平气井全井段气水两相流动理论计算模型，应用多相流模拟软件对水平井积液过程进行数值模拟分析。结果表明，水平井积液后水平段的压力损失较小，积液易堆积在造斜段，影响产能。对复杂完井段持液率影响因素分析，当管径大于40 mm时，持液率大幅增加；当上倾角为65°时，持液率出现峰值，且倾角与持液率呈角函数变化关系。利用数值模拟技术，准确判断气水两相流在水平井中的流动状态和持液率变化，为确定水平气井井筒积液情况提供了新的理论分析方法，对后期排水采气增产措施的制定具有指导作用。
Abstract:
The gaswater twophase flow law and effusion process in horizontal wells are quite different from those in vertical wells. To clarify the law of gaswater twophase flow in horizontal wells and establish the identification method of liquid accumulation in horizontal wells, a theoretical calculation model of gaswater twophase flow in the whole well section of horizontal gas wells is established by using the similarity principle, and the liquid accumulation process in horizontal wells is numerically simulated and analyzed by multiphase flow simulation software. The results show that the pressure drop in the horizontal section is small after the liquid accumulation in the horizontal well, and the liquid is easy to accumulate in the deflecting section to affect the production capacity. In addition, the influencing factors of liquid holdup in complex completion section are analyzed. When the pipe diameter is greater than 40 mm, the liquid holdup increases greatly; When the updip angle is 65 °, the liquid holdup appears a peak, and the relationship between these factors is an angular function. The numerical simulation technology is used to accurately judge the flow state and liquid holdup change of gaswater twophase flow in horizontal wells, which provides a new theoretical analysis method for determining the wellbore effusion of horizontal gas wells, and plays a guiding role in the formulation of drainage and gas production stimulation measures in the later stage

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备注/Memo

备注/Memo:
吴墨染，男，1987年出生，工程师，2009年毕业于大庆石油学院机械设计制作造及自动化专业，现主要从事钻井工程工作。电话：04386336655；Email： wumoran@cnpc.com.cn 。通信地址：天津市滨海新区大港油田红旗路128号渤海钻探第一钻井分公司，邮政编码：300280。
更新日期/Last Update: 2022-04-19