presentation final i-6 --- cjs --- flatpak u - alrdc -...

Gas Well Deliquification WorkshopSheraton Hotel, Denver, Colorado

February 22 - 24, 2010

FLATpaktm UmbilicalPresented By Collin Morris – President & Chief Technology Officer

CJS Coiled Tubing Supply Ltd. – Lloydminster, Alberta, Canada

Feb. 22 - 24, 2010 2010 Gas Well Deliquification WorkshopDenver, Colorado 2

Agenda

Heading

• What is the Vertical Umbilical

• Why was the Vertical Umbilical developed

• Advantages of using the Vertical Umbilical

• What are the components of the Vertical Umbilical

• How is Vertical Umbilical manufactured

• Original challenges

• Alternative applications for the Vertical Umbilical

• Where is the Vertical Umbilical being utilized and how

• Technical challenges/solutions

Feb. 22 - 24, 2010 2010 Gas Well Deliquification WorkshopDenver, Colorado

3

Definition of the System

The Vertical Umbilical is a uniquely designed multiple conduit bundlethat:

•Was originally designed for CONVEYING hydraulic subsurface pumps•Provides a hydraulic circuit for POWERING these pumps•Provides a PRODUCTION CONDUIT for producing the well•Is installed by conventional coiled tubing units•Utilizes complete Canadian class 1+2 “safe operating” practices•Used for deployment of subsurface hydraulic pumps, electricsubmersible pumps, gas lift & other artificial lift systems


4

Why Was the Vertical Umbilical DevelopedWhy Was the Vertical Umbilical Developed

The Vertical Umbilical was developed to …

• Efficiently & safely convey hydraulic based pumps• Replace jointed production tubing and rods• Eliminate the “Conventional Rig” for installation• Combine multiple services into one & reduce surface

footprint• Provide flexibility in design and function• Permit temporary intervention with Artificial Lift Systems


Material SpecificationsMaterial Specifications

• Carbon Steel Coiled Tubing• High Strength 70/80k Grade, various gauges• High Tensile Strength• Outstanding low cycle fatigue• Well understood mechanical and chemical properties• External FBE Coatings enable use in mild H2S/CO2

environments for closed hydraulic systems

• Alternative Tubular Materials

• 304 SS, 316-L SS

• Lean Duplex Alloy 19D

• Alternative “hi temp” acid resistant thermo plastic tubefor low pressure, shallow applications


Encapsulation SpecificationsEncapsulation Specifications

• Encapsulation Material

• Vulcanized Thermoplastic (PP/EPDM)

• Temperature Rating-135C

• Chemical Resistance to all Oilfield Solvents andchemicals

• Excellent Abrasion Resistance (Taber Test) ASTM D904Wear Index 5

• Has been used for “eons” for capillary tubing protectionand SCSSV installations


Pressurized Extrusion ProcessPressurized Extrusion Process


Dimensions for HSP UmbilicalDimensions for HSP UmbilicalDescription Dimensions Weight lbs/ ft

1” x ¾” x 1” 3.051” x 1.20” 2.69

1” x 5/8” x 1” 2.925” x 1.20” 2.88

1” x 1” x 1” 3.300” x 1.20” 2.71

¾” x ¾” x ¾” 2.80” x .95” 2.12

Cross Section Umbilical Configuration


Original Challenges to OvercomeOriginal Challenges to Overcome• The Vertical Umbilical could be

spooled in its configuration

• “Encapsulation” material couldwithstand stresses of spooling

• “Encapsulation” equipment couldhandle the tubing sizes

• Chains/Gripper Blocks couldfunction without damage

• Well Control equipmentmodifications could be made

• Conventional CT wellhead couldbe modified to support the system


Application Types/SystemsApplication Types/Systems

HSP Pump3-Line System

Single Point2-Line Gas Lift

orJet Pump

ESP Pump1 Line + Cable

Current LiftTypes/Suppliers

•HSP Activator-GlobalEnergy

•HSP Perry Pump-Cyclone

•HSP Hygr Pump-HydroPacfic

•HSP Cormorant Pump

•Jet Pump(JetPakTM)-Source Rock


Application Types/SystemsApplication Types/Systems (Con(Con’’t)t)

HSP Pump3-Line System

Single Point2-Line Gas Lift

orJet Pump

ESP Pump1 Line + Cable

Systems underdevelopment

•ESP Permanent

•Hydraulic Centrifugal

•Hydraulic PCP

•HSP Dual Stroke

•Multi Pt. Gas Lift


Other Additional CapabilitiesOther Additional Capabilities

• Downhole Chemical Injection

• Downhole Reservoir DataAcquisition

• Downhole Optical Fiber DataTransmission

• Downhole Camera Conveyance


Application HistoryApplication History

•Canada - multiple 3200 ft hydraulic pump installations•Canada - multiple 3500 ft jet pump installations•Canada - multiple 2500 ft vertical well HSP and Jet Pump cleanouts•Oklahoma - multiple 4500 ft horizontal well Jet Pump cleanouts•Oklahoma - multiple 3000 ft hydraulic pump installations•Texas - multiple 7000 ft Barnett & Fayetteville shale HSP installations•Montana 5600 ft single point gas lift and chemical injection


HSP CleanoutsHSP Cleanouts• 3-Line HSP service pump for CBM

wells in Alberta - total 100+ wellsserviced

• 1-Line provides production conduitfor produced water to surface frompump discharge

• 2-Lines provide closed-loop hydrauliccircuit

• Use of this system reduces fluids andpressure placed on reservoir duringoperation for cleanout

• Results in a non-invasive treatment

• Ideal means to test HSP

• Cost effective/no CAPEX


Jet Pump CleanoutsJet Pump Cleanouts

UmbilicalTubingSystem

ProductionMode

Jetting Mode

• JetPakTM service with2-line FlatPak string &modified jet pump

• for dewatering & fillremoval operations inCBM and conventionalgas wells

• 1 line for jet pumppower fluid / 1 line forreturn fluids

• 150 wells serviced infirst 6 months ofoperation in Canada

• Successful 10 horizontalCBM well pilot project inOklahoma


Jet Pump CleanoutsJet Pump Cleanouts (Cont.)(Cont.)

• System eliminates backpressure placed onreservoir duringcleanout resulting innon-invasive treatment

• Able to rapidly “pumpoff” the well

• Immediate increaserealized in post cleanoutraw gas production

• Ideal means to test jetpump for permanentinstallation

UmbilicalTubingSystem

ProductionMode

Jetting Mode

0.00

Vo

lum

e(m

3)

02/01/200903/05/2009

04/06/200905/08/2009

06/09/200907/11/2009

08/12/200909/13/2009

10/15/2009

Date


Single Well Gas Rate

Rat

e(m

cfd

)

100

80

60

40

20


0

ConventionalCleanoutDamage

JetPak™Cleanout

30 mcfd“Sustained”IncrementalProduction

(56% Increase)


Clean-out Volume (m3) Raw Gas Gross (mcf/day)

0.00

200.00

400.00

600.00

800.00

1,000.00

0.00

0.80

1.60

2.40

3.20

4.00

02/01/200903/05/2009

04/06/200905/08/2009

06/09/200907/11/2009

08/12/200909/13/2009

10/15/2009

Date

Gas Rate Only9 Completions

Oct 16, 2009, 15:04

9 WellJetPak™CleanoutCampaign

100 mcfd Incremental Production(18% increase)

Gas Rate - Group

Rat

e(m

cfd

)

1,000

800

600

400

200

Clean

ou

tVolum

e(m

3)

4.0

3.2

2.4

1.6

0.8


0 0.0


Technical Issues/SolutionsTechnical Issues/Solutions

• Gas migration / explosive decompression entering downhole“encapsulation end”

• Depth limitations related to potential damage to encapsulationby CT Injector Head Gripper Blocs

• Wellhead Modifications

• Temperature and application compatibility

• Fishing



SOLUTION…Gas Migration /Explosive Decompression

• Addition of “underlayer” ofPolyethylene Polymer from Innotek“G-55”

• Field trials prove advantageous byimproving adhesion of tube toencapsulation



SOLUTION… Depth limitationsrelated to potential damage toencapsulation by CT InjectorHead

•Increased surface area results indecreased “skate” hydraulic pressure

•Newly designed “drive arch” systemresults in increased surface area anddecreased “skate” pressure resultingin ability to “run deeper” with outpotential damage to encapsulation



SOLUTION… WellheadModifications

•To prevent Umbilical slippagethrough Dognut when using hardercoiled tubing, newly designed dognutslips in the form of conventionalwellhead slips are being designed



SOLUTION… Temperature andapplication versatility

Santoprene or Nexoprene TPVproves to work very well in numerousfield trials when subjected long termunder pressure, temperature andvarious hydrocarbon exposures

To achieve greater versatility inapplication, research is beingconducted to identify additionalthermoplastic elastomers for new,higher temperature and pressureapplications and address potentialhydrocarbon permeation



SOLUTION… Fishing

•In the event of downhole umbilicalloss, fishing tools have beendesigned and successfully tested torecover FlatPak with a conventionalservice rig


Advantages of Vertical UmbilicalAdvantages of Vertical UmbilicalSuperior Design

• Minimizes formation damage due to live well intervention• Provides mechanical and corrosion protection and insulation

from extreme temperatures• Easily repaired in the field• Optional selections of tubing or wire proven they can be

spooled

Versatility• Facilitates permanent pump installation and temporary

service intervention• Configuration can be easily altered for specific applications• Is conveyed with any conventional CT unit


Advantages of Vertical UmbilicalAdvantages of Vertical Umbilical (Con(Con’’t)t)

Efficiency• Permits intervention consolidation (ie: Coiled tubing unit replaces

service rigs, capillary rigs & cable spool rigs)• Facilitates swift and efficient operations in a CT environment with

minimal surface disturbance

Safety• Offers multiple points of well control


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Other use of this presentation is prohibited without the expressedwritten permission of the author(s). The owner company(ies) and/orauthor(s) may publish this material in other journals or magazines ifthey refer to the Gas Well Deliquification Workshop where it wasfirst presented.

Feb. 22 -24, 2010 2010 Gas Well Deliquification WorkshopDenver, Colorado

28

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