View in EDS HTML Full Text PDF Full Text

Prediction of Gas–Liquid Two‐Phase Flow Pressure Wave in the Wellbore During the Re‐Production of Deep Gas Wells.

Saved in:
Bibliographic Details
Title: Prediction of Gas–Liquid Two‐Phase Flow Pressure Wave in the Wellbore During the Re‐Production of Deep Gas Wells.
Authors: Zheng, Yushan1,2 (AUTHOR) zhengyushan1988@126.com, Chu, Shengli1,2 (AUTHOR), Zhang, Sixi1,2 (AUTHOR), Wang, Pengcheng3 (AUTHOR), Li, Yanlong4 (AUTHOR), Jing, Yinghua1,2 (AUTHOR), Sun, Bingcai1,2 (AUTHOR), Zhang, Zhi5 (AUTHOR), Wang, Jiawei6 (AUTHOR)
Source: Energy Science & Engineering. Nov2025, Vol. 13 Issue 11, p5105-5120. 16p.
Subject Terms: *Gas wells, *Unsteady flow, *Fluid dynamics, *Theory of wave motion, *Numerical solutions to equations, *Gas flow
Abstract: The pressure of the tube at the wellhead is abruptly released during the opening of a high‐production gas well, causing pressure fluctuation and subjecting the tubing to extra stress. In extreme circumstances, shock load may shatter tubing, compromising the integrity of the well and safe production. Thus, the dynamic boundary conditions of the wellhead valve opening procedure and the complex operating circumstances of the gas well must be fully taken into account. To determine the changes in wellhead pressure and velocity following valve opening, a nonlinear mathematical model of transient flow during valve opening is developed, and a method of characteristics is used for numerical solution. Next, examine how wellhead pressure and velocity are affected by well opening time Top, valve opening coefficient m, production Qg, and holdup HL. According to the study, wellhead pressure steadily drops from shut‐in static pressure and approaches steady flow pressure during fluctuation following valve opening. Wellhead pressure and flow rate variations essentially occur at the same time. The wellhead pressure is discharged and the pressure fluctuation decays more quickly with a shorter well opening period. The pressure variation lasts longer the longer the well is opened. The wellhead opening decreases as the valve opening coefficient decreases. The pressure drops off more quickly as the flow rate rises. The fluctuation pressure first rises and then falls as output rises. The larger the production, the quicker the fluid steady flow rate, provided that the tubing's cross section stays constant. Wellhead pressure rises and the wellhead flow rate falls as the liquid holdup increases. This study is of practical significance for determining how to reduce wellbore fluctuation pressure and improve wellbore integrity. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: enr
DbLabel: Energy & Power Source
An: 189231497
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Prediction of Gas–Liquid Two‐Phase Flow Pressure Wave in the Wellbore During the Re‐Production of Deep Gas Wells.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zheng%2C+Yushan%22">Zheng, Yushan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhengyushan1988@126.com</i><br /><searchLink fieldCode="AR" term="%22Chu%2C+Shengli%22">Chu, Shengli</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Sixi%22">Zhang, Sixi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Pengcheng%22">Wang, Pengcheng</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yanlong%22">Li, Yanlong</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jing%2C+Yinghua%22">Jing, Yinghua</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Bingcai%22">Sun, Bingcai</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhi%22">Zhang, Zhi</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jiawei%22">Wang, Jiawei</searchLink><relatesTo>6</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energy+Science+%26+Engineering%22">Energy Science & Engineering</searchLink>. Nov2025, Vol. 13 Issue 11, p5105-5120. 16p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Gas+wells%22">Gas wells</searchLink><br />*<searchLink fieldCode="DE" term="%22Unsteady+flow%22">Unsteady flow</searchLink><br />*<searchLink fieldCode="DE" term="%22Fluid+dynamics%22">Fluid dynamics</searchLink><br />*<searchLink fieldCode="DE" term="%22Theory+of+wave+motion%22">Theory of wave motion</searchLink><br />*<searchLink fieldCode="DE" term="%22Numerical+solutions+to+equations%22">Numerical solutions to equations</searchLink><br />*<searchLink fieldCode="DE" term="%22Gas+flow%22">Gas flow</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The pressure of the tube at the wellhead is abruptly released during the opening of a high‐production gas well, causing pressure fluctuation and subjecting the tubing to extra stress. In extreme circumstances, shock load may shatter tubing, compromising the integrity of the well and safe production. Thus, the dynamic boundary conditions of the wellhead valve opening procedure and the complex operating circumstances of the gas well must be fully taken into account. To determine the changes in wellhead pressure and velocity following valve opening, a nonlinear mathematical model of transient flow during valve opening is developed, and a method of characteristics is used for numerical solution. Next, examine how wellhead pressure and velocity are affected by well opening time Top, valve opening coefficient m, production Qg, and holdup HL. According to the study, wellhead pressure steadily drops from shut‐in static pressure and approaches steady flow pressure during fluctuation following valve opening. Wellhead pressure and flow rate variations essentially occur at the same time. The wellhead pressure is discharged and the pressure fluctuation decays more quickly with a shorter well opening period. The pressure variation lasts longer the longer the well is opened. The wellhead opening decreases as the valve opening coefficient decreases. The pressure drops off more quickly as the flow rate rises. The fluctuation pressure first rises and then falls as output rises. The larger the production, the quicker the fluid steady flow rate, provided that the tubing's cross section stays constant. Wellhead pressure rises and the wellhead flow rate falls as the liquid holdup increases. This study is of practical significance for determining how to reduce wellbore fluctuation pressure and improve wellbore integrity. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=189231497
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/ese3.70280
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 5105
    Subjects:
      – SubjectFull: Gas wells
        Type: general
      – SubjectFull: Unsteady flow
        Type: general
      – SubjectFull: Fluid dynamics
        Type: general
      – SubjectFull: Theory of wave motion
        Type: general
      – SubjectFull: Numerical solutions to equations
        Type: general
      – SubjectFull: Gas flow
        Type: general
    Titles:
      – TitleFull: Prediction of Gas–Liquid Two‐Phase Flow Pressure Wave in the Wellbore During the Re‐Production of Deep Gas Wells.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zheng, Yushan
      – PersonEntity:
          Name:
            NameFull: Chu, Shengli
      – PersonEntity:
          Name:
            NameFull: Zhang, Sixi
      – PersonEntity:
          Name:
            NameFull: Wang, Pengcheng
      – PersonEntity:
          Name:
            NameFull: Li, Yanlong
      – PersonEntity:
          Name:
            NameFull: Jing, Yinghua
      – PersonEntity:
          Name:
            NameFull: Sun, Bingcai
      – PersonEntity:
          Name:
            NameFull: Zhang, Zhi
      – PersonEntity:
          Name:
            NameFull: Wang, Jiawei
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 11
              Text: Nov2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 20500505
          Numbering:
            – Type: volume
              Value: 13
            – Type: issue
              Value: 11
          Titles:
            – TitleFull: Energy Science & Engineering
              Type: main
ResultId 1