A Prediction Model for Sustained Casing Pressure under the Effect of Gas Migration Variety
Joint Authors
Cong, Ziyuan
Feng, Fuping
Shan, Wuyi
Hu, Chaoyang
Yan, Maosen
Han, Xu
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-20
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Sustained casing pressure (SCP) is a challenge in the well integrity management in oil and gas fields around the world.
The flow state of leaked gas will change when migrated up annulus protective fluid.
To show the influence of gas migration on casing pressure recovery, a prediction model of SCP based on Reynolds number of bubbles was established.
The casing pressure prediction of typical wells and the sensitivity analysis of casing pressure are performed.
The results show that the casing pressure recovery time decreases with the increase of cement permeability.
However, larger cement permeability has little effect on the casing pressure after stabilization.
Increasing the height of annulus protective fluid reduces the stable casing pressure value and shortens the casing pressure recovery time.
Compared with the existing models, the results show that the time of casing pressure recovery will be shortened by the change of gas migration, and the effect of bubbles Re < 1 on SCP will be greater.
The new model can be used to detect and treat the SCP problem caused by small Reynolds number gas leakage.
American Psychological Association (APA)
Feng, Fuping& Cong, Ziyuan& Shan, Wuyi& Hu, Chaoyang& Yan, Maosen& Han, Xu. 2019. A Prediction Model for Sustained Casing Pressure under the Effect of Gas Migration Variety. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1195033
Modern Language Association (MLA)
Feng, Fuping…[et al.]. A Prediction Model for Sustained Casing Pressure under the Effect of Gas Migration Variety. Mathematical Problems in Engineering No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1195033
American Medical Association (AMA)
Feng, Fuping& Cong, Ziyuan& Shan, Wuyi& Hu, Chaoyang& Yan, Maosen& Han, Xu. A Prediction Model for Sustained Casing Pressure under the Effect of Gas Migration Variety. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1195033
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195033