Liquid Unloading with Multiphase Pumps - Artificial lift · Appalachian Basin Gas Well...

Appalachian Basin Gas Well Deliquification SeminarDeliquification SeminarMarietta College, Marietta, Ohio

June 7 - 8, 2010

Liquid Unloading with Multiphase Pumps

Presented by Joseph Latronica

Multiphase Pumpsp pTypical MPP Applications

D b k ll t i• Decrease back-pressure on wells to increase production

• Pressure boosting• Pressure boosting – Overcome terrain issues– Produce remote or marginal wellsg– Utilizing existing downstream

process facilities

• Flow assurance• Produced Water and Emulsions

June 7 – 8, 2010 22010 Appalachian Basin Gas Well Deliquification Seminar

Multiphase Pumpsp p


Multiphase Pumpsp p

Liquid Flow Multiphase Flow


Multiphase Pumpsp p

Liquid and gas phase split


Multiphase Pumpsp pSlug Flow


Multiphase Pumpsp p

Why use Multiphase Pumps on gas wells?

• Liquid hold-up in gas wells reduces the gas velocity and prevents gas from flowing into the sales linegas from flowing into the sales line.

• Low velocity is a problem in tight gas formations and aging wells. y p g g g gVelocity slows to a point that it cannot overcome the critical speed necessary to lift liquids up the production tubing.

Multiphase Pumps reduce well head pressure (near atmospheric pressure), thus increasing tubing velocity and allowing the liquids

to flow up the tubing with the gas flowto flow up the tubing with the gas flow.


Multiphase Pumps

Outlet toOut et toSales Line

Inlet from Gas Well


Multiphase Pumps


Multiphase Pumpsp p

Li id K k tLiquid Knock-out


Multiphase Pump Experiencep p pCasing Gas InstallationAlberta CanadaAlberta, Canada

Existing Conditions Average Gas: 19.97 MSCF/dAverage Oil: 74 BPDAverage Water: 100 BPDGVF: 94.3%Total Flow: 3070 BPDeTotal Flow: 3070 BPDe


Multiphase Pump Experiencep p pDesign ConsiderationsContinue to off load casing gas while pump jack isContinue to off load casing gas while pump jack is

not pumping

Protect against running pump dry with the use ofProtect against running pump dry with the use of level switches

Implement recovery of sealing liquid while pump jack is down to increase the operational time for casing gas off loading.

P id I t D t M t t ll it t bProvide Inverter Duty Motor to allow unit to be easily upgraded to PLC controlled operation.

Bed skid is standard oil field design to beBed skid is standard oil field design to be relocated if necessary.


Multiphase Pump Experiencep p pOperational ModesBoth Pump Jack and MPP in Operation:Both Pump Jack and MPP in Operation:Casing Pump discharge into discharge piping

header both gas and liquid.OPump Jack not running. MPP Operating Using

Seal Liquid in Piping:MPP discharge into discharge piping header and g g p p g

discharge liquid is “trapped” to be recycled back to pump seals. The Casing Gas is pumped down streampumped down stream.


Multiphase Pump Experience


Multiphase Pump Experiencep p p


Multiphase Pump Experiencep p pCasing Gas Project Summary

MPS installed in 2007 and still in use

S GWell pressure drawn down to 10 PSIG

Overall Production Increase: 31.5 BPD

Operated 3 months on 100% gas



MPP installed in Alberta, Canada



Multiphase Pump


Multiphase PumpsConclusions

• Liquid management and improved well availability can be achieved through Multiphase Pumping

• Twin Screw Multiphase Pumps are simple machines that adapt to changing well conditions thus extending end of life productionchanging well conditions, thus extending end of life production

• Systems are designed for portability

• Reduced environmental impact and typically low noise emissions


Wet Gas MPP’s


Copyrightpy gRights to this presentation are owned by the company(ies) and/or author(s) listed on the title page. By submitting this presentation to ( ) p g y g pthe Gas Well Deliquification Workshop, they grant to the Workshop, the Artificial Lift Research and Development Council (ALRDC), and the 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 be

as directed by the Workshop Steering Committee.Pl i CD f di ib i d/ l di d b h– Place it on a CD for distribution and/or sale as directed by the Workshop Steering Committee.

Other use of this presentation is prohibited without the expressed written permission of the author(s) The owner company(ies) and/orwritten permission of the author(s). The owner company(ies) and/or author(s) may publish this material in other journals or magazines if they refer to the Gas Well Deliquification Workshop where it was first presented.


DisclaimerThe following disclaimer shall be included as the last page of a Technical Presentation or Continuing Education Course. A similar disclaimer is included on the front page of the Gas Well Deliquification Web Site.The Artificial Lift Research and Development Council and its officers and trustees, and the Gas Well Deliquification Workshop Steering Committee members, and their supporting organizations and companies (here-in-after referred to as the Sponsoring Organizations), and the author(s) of this Technical Presentation or Continuing Education Training Course and their company(ies), provide this presentation and/or training material at the Gas Well Deliquification Workshop "as is" without any warranty of any kind, express or implied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded 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 any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained.The views, opinions, and conclusions expressed in these presentations and/or training materials are those of the author and not necessarily those of the Sponsoring Organizations. The author is solely responsible for the content of the materials.The Sponsoring Organizations cannot and do not warrant the accuracy of these documents beyond the source documents, although we do make every attempt to work from authoritative y g ysources. The Sponsoring Organizations provide these presentations and/or training materials as a service. The Sponsoring Organizations make no representations or warranties, express or implied, with respect to the presentations and/or training materials, or any part thereof, including any warrantees of title, non-infringement of copyright or patent rights of others, merchantability, or fitness or suitability for any purpose.

242010 Appalacian Basin Gas Well Deliquification SeminarJune 7 – 8, 2010

Liquid Unloading with Multiphase Pumps - Artificial lift · Appalachian Basin Gas Well...

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