pcs marathon presentation

7/27/2019 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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Feb. 23 - 26, 20092009 Gas Well Deliquification Workshop

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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Denver, Colorado

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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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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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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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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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Denver, Colorado

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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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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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Denver, Colorado

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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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Denver, Colorado

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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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Denver, Colorado

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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.

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