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PCS Marathon Presentation
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Transcript of PCS Marathon Presentation
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Gas Well Deliquification Workshop
Sheraton Hotel, Denver, Colorado
February 23 - 26, 2009
Below Packer Annular Gas Lift WithVelocity Enhancement
Bill Holmes, Marathon Oil Company
Steve Pohler, Marathon Oil Company
Sonny Stephenson, PCS-Opti Flow
Contents of this presentation by Marathon Oil Company and PCS-Opti Flow. Copyright 2009 Marathon Oil Company LLC and PCS-Opti-Flow
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Denver, Colorado
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Below Packer Annular Gas Liftwith Velocity Enhancement
Developed to effectively deliquify wells with
completion interval lengths up to several
thousand feet
Allows well to be lifted from the bottom of theperforation interval
Increases fluid velocity in the annular flow area below
the packer by reducing the cross sectional flow area
Allows wellbore access below the packer
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Below Packer Annular Gas Liftwith Velocity Enhancement
ProductionLift Gas
Side Pocket Mandrel
Packer
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Denver, Colorado
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Cross Over System
Lift Gas Production
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Denver, Colorado
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Benefits of System
Can produce zones several thousand feet long
Allows for using standard wireline retrievable gas lift
valves below the packer
Allows for running pressure/temperature memory tools
below the packer
Maintains access to the wellbore below the
perforations.
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2009 Gas Well Deliquification Workshop
Denver, Colorado
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Benefits of System
Reduces lift gas volume required to reach critical
velocity
Allows corrosion inhibitor to be injected to the
bottom of the wellbore with the lift gas.
Minimal flow restriction through system.
Remove more liquid, make more gas.
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7/27/2019 PCS Marathon Presentation
7/18Feb. 23 - 26, 2009
2009 Gas Well Deliquification Workshop
Denver, Colorado
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Application of System
Wells producing from multiple zones with overall
length of 1500 to 2000 feet.
System installed and wells placed on gas lift
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2009 Gas Well Deliquification Workshop
Denver, Colorado
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Well A
0
500
1000
1500
2000
2500
12/4/2006 6/22/2007 1/8/2008 7/26/2008 2/11/2009
MCFDBWPD
FTP
Installed Below Packer
Annular Gas Lift w/Velocity
Enhancement
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Feb. 23 - 26, 20092009 Gas Well Deliquification Workshop
Denver, Colorado
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Well B
0
400
800
1200
1600
2000
11/9/2005 5/28/2006 12/14/2006 7/2/2007 1/18/2008 8/5/2008 2/21/2009
MCFDBWPD
FTP
Installed Below Packer
Annular Gas Lift w/Velocity
Enhancement
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Feb. 23 - 26, 20092009 Gas Well Deliquification Workshop
Denver, Colorado
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Application of System
Wells with previously abandoned zones below
bridge plugs
Plugs are removed and System is installed
Entire interval of approximately 2000 feet placed
on production
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Feb. 23 - 26, 20092009 Gas Well Deliquification Workshop
Denver, Colorado
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Well C
0
200
400
600
800
1000
1200
1400
10/15/2007 1/23/2008 5/2/2008 8/10/2008 11/18/2008 2/26/2009
MCFD
BWPD
FTPDrill plugs. Installed
Below Packer Annular
Gas Lift w/Velocity
Enhancement
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Feb. 23 - 26, 20092009 Gas Well Deliquification Workshop
Denver, Colorado
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Application of System
Wells with new zones being completed
Immediately after fracture stimulation, system is
installed to produce both the old and new
completion interval
Eliminates the need for using CO2 or N2 in the
frac for clean up
Reduces time and cost since the well is cleaned up with
the gas lift system
Eliminates the need for swabbing or jetting with
N2
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Well D
0
200
400
600
800
1000
1200
9/25/2007 1/3/2008 4/12/2008 7/21/2008 10/29/2008 2/6/2009
MCFD
BWPD
FTPRecomplete Upper Zones, Install
Below Packer Annular Gas Lift
w/Velocity Enhancement
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Applications
Marathon has 10 installations in EastTexas
Has been successful at increasing
production in existing completions
Has allowed for producing previously
abandoned zones in addition to
existing zones.
Has allowed for producing all zones in
newly recompleted wells
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Future Plans and Applications
Marathon has plans to continue to expand the
use of this system in its East Texas Fields
Marathon is currently designing a retrofit
installation in an Offshore deliquification project
Reviewing potential application in other fields
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Conclusion
Any Questions?
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Copyright
Rights to this presentation are owned by the company(ies) and/orauthor(s) listed on the title page. By submitting this presentation tothe Gas Well Deliquification Workshop, they grant to the Workshop,the Artificial Lift Research and Development Council (ALRDC), andthe Southwestern Petroleum Short Course (SWPSC), rights to:
Display the presentation at the Workshop.
Place it on the www.alrdc.com web site, with access to the site to beas directed by the Workshop Steering Committee.
Place it on a CD for distribution and/or sale as directed by theWorkshop Steering Committee.
Other uses of this presentation are prohibited without the expressed
written permission of the company(ies) and/or author(s) who own itand the Workshop Steering Committee.
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Disclaimer
The Artificial Lift Research and Development Council and its officers and trustees,and the Gas Well Deliquification Workshop Steering Committee members, and theirsupporting organizations and companies (here-in-after referred to as the SponsoringOrganizations), and the author(s) of this Technical Presentation or ContinuingEducation Training Course and their company(ies), provide this presentation and/ortraining material at the Gas Well Deliquification Workshop "as is" without anywarranty of any kind, express or implied, as to the accuracy of the information or theproducts or services referred to by any presenter (in so far as such warranties may beexcluded under any relevant law) and these members and their companies will not be
liable for unlawful actions and any losses or damage that may result from use of anypresentation as a consequence of any inaccuracies in, or any omission from, theinformation which therein may be contained.
The views, opinions, and conclusions expressed in these presentations and/ortraining materials are those of the author and not necessarily those of the SponsoringOrganizations. The author is solely responsible for the content of the materials.
The Sponsoring Organizations cannot and do not warrant the accuracy of thesedocuments beyond the source documents, although we do make every attempt towork from authoritative sources. The Sponsoring Organizations provide thesepresentations and/or training materials as a service. The Sponsoring Organizationsmake no representations or warranties, express or implied, with respect to thepresentations and/or training materials, or any part thereof, including any warranteesof title, non-infringement of copyright or patent rights of others, merchantability, orfitness or suitability for any purpose.