Article Detail — Pakistan Science Abstracts

Choose Theme

Theme 1 — Green & Gold

No Detail Found!
Tight gas sands gas well production enhancement system.
Author(s)
Abdullah Khan Weatherford, Islamabad, Pakistan
M. Naveed Aslam Maan University of Engineering and Technology Lahore, Pakistan
Abstract
The production of gas from `tight sand` deep wells has always created a challenge to gas well operators. The problem with conventional gas production methods from `tight sands` wells has been the inability to predictably adjust to the changes in the production capability of the well. The decisions to produce, and fluid removal on a predicted schedule, have been left to the experience and skill of the well tender. Quite often, the well may be overproduced; it becomes `waterlogged`, and the residual natural gas pressure is incapable of `lifting` the accumulated fluids from the well. Extended periods of `shut in` are then necessary to recover the pressure, and to force the excess fluids back into the formations; as a result, considerable production time is lost. Secondly, this shut in period is followed by exhausting, or `blowing` the well to the atmosphere, in order to remove the excess fluids and `clean up` the well. This loss of time and natural gas results in considerable loss of revenue. A more efficient production method is called for to fully utilize these untapped gas reserves. This paper describes a system for enhancing gas production from `tight sands` gas wells by the use of expansion tanks, designed to accept the discharged volume of gas and well fluids from at least one production cycle at a reduced pressure, plumbed in unique manner, and controlled by strategically located switch gauges, that allow naturally controlled fluid clean-out cycles. This method eliminates well shut-ins and gas loss, experienced with conventional gas production methods, and to allow more efficient exhaustion of predicted natural gas well reserves, with minimal well supervision and maintenance expense.
Publication Details
Page(s) 171-179
DOI DOI not available
Published Journal: Proceedings SPE-PAPG Annual Technical Conference, Volume: 0, Issue: , Year: 2008
Keywords
Keywords are not available for this article.
References
References are not available for this document.
Citations
Citations are not available for this document.
0

Citations

0

Downloads

76

Views

Copyright ©  PASTIC National Center, Islamabad www.pastic.gov.pk