Cover Image

Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios

Well cleanup operation for large diameter well with low bottomhole pressure is problematic and common cleanout fluids are not effective as a circulation fluid due to severe pressure losses and low suspension capability. So, It is required to analyze a fluid which can suspend the solid particles even...

Full description

Saved in:
Bibliographic Details
Main Authors: Khan, Javed, Pao, William K. S.
Format: Conference or Workshop Item
Published: 2013
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utp.edu.my/10942/1/IOGSE_122.pdf
http://www.iogse2013.tasacad.org/
http://eprints.utp.edu.my/10942/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utp.eprints.10942
record_format eprints
spelling my.utp.eprints.109422017-03-20T01:59:21Z Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios Khan, Javed Pao, William K. S. TJ Mechanical engineering and machinery Well cleanup operation for large diameter well with low bottomhole pressure is problematic and common cleanout fluids are not effective as a circulation fluid due to severe pressure losses and low suspension capability. So, It is required to analyze a fluid which can suspend the solid particles even at low annular velocities and efficiently clean the wellbore. Recently, the use of foam as cleaning agent has become more popular due to its low density and high viscosity which are desirable in many underbalanced operations. This study is focused to analyze the coil tubing fill cleanout with foam in horizontal annulus. The objective of this paper is to investigate the effect of foam quality and velocity on fill concentration during horizontal wellbore cleanup operation at different CT/Annulus diametric ratios using Herschel Buckley viscosity model. Results showed that foam quality and velocity are the deciding factors for the fill transport. Present study also showed that for all size of fill particles, lower foam quality removes fill more efficiently than higher foam quality. It is noticed that diametric ratio has high effect on particle removal when foam quality is 70 %. Surprisingly, it is found that the effect of diametric ratio on fill concentration decreases when foam quality is 90%. 2013-10-13 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/10942/1/IOGSE_122.pdf http://www.iogse2013.tasacad.org/ Khan, Javed and Pao, William K. S. (2013) Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios. In: International Oil and Gas Symposium and Exhibition, 9-11 Oct 2013, Sabah. http://eprints.utp.edu.my/10942/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Khan, Javed
Pao, William K. S.
Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios
description Well cleanup operation for large diameter well with low bottomhole pressure is problematic and common cleanout fluids are not effective as a circulation fluid due to severe pressure losses and low suspension capability. So, It is required to analyze a fluid which can suspend the solid particles even at low annular velocities and efficiently clean the wellbore. Recently, the use of foam as cleaning agent has become more popular due to its low density and high viscosity which are desirable in many underbalanced operations. This study is focused to analyze the coil tubing fill cleanout with foam in horizontal annulus. The objective of this paper is to investigate the effect of foam quality and velocity on fill concentration during horizontal wellbore cleanup operation at different CT/Annulus diametric ratios using Herschel Buckley viscosity model. Results showed that foam quality and velocity are the deciding factors for the fill transport. Present study also showed that for all size of fill particles, lower foam quality removes fill more efficiently than higher foam quality. It is noticed that diametric ratio has high effect on particle removal when foam quality is 70 %. Surprisingly, it is found that the effect of diametric ratio on fill concentration decreases when foam quality is 90%.
format Conference or Workshop Item
author Khan, Javed
Pao, William K. S.
author_facet Khan, Javed
Pao, William K. S.
author_sort Khan, Javed
title Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios
title_short Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios
title_full Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios
title_fullStr Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios
title_full_unstemmed Horizontal Well Cleanup Operation using Foam in Different Coiled Tubing/Annulus Diameter Ratios
title_sort horizontal well cleanup operation using foam in different coiled tubing/annulus diameter ratios
publishDate 2013
url http://eprints.utp.edu.my/10942/1/IOGSE_122.pdf
http://www.iogse2013.tasacad.org/
http://eprints.utp.edu.my/10942/
_version_ 1738655914020306944
score 13.211869

Similar Items