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Tuned ® Spacer VI Spacer Fluid SUBHEAD, 12PT ARIAL BOLD Title

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Tuned ® Spacer VI Spacer Fluid . SUBHEAD, 12PT ARIAL BOLD Title. Preparing the Wellbore to Receive Cement. Tuned ® Spacer VI System Optimal m ud removal system Economically enables spacer fluid volume to b e i ncreased Helps improve d isplacement efficiency. - PowerPoint PPT Presentation

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Page 1: Tuned ®  Spacer VI Spacer Fluid

Tuned® Spacer VI Spacer Fluid

SUBHEAD, 12PT ARIAL BOLDTitle

Page 2: Tuned ®  Spacer VI Spacer Fluid

2 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Preparing the Wellbore to Receive Cement

Tuned® Spacer VI System Optimal mud removal system Economically enables spacer

fluid volume to be increased Helps improve displacement

efficiency

Page 3: Tuned ®  Spacer VI Spacer Fluid

3 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Tuned® Spacer VI Spacer Fluid – Benefits

Replaces water-based mud for displacing oil-based drilling fluid (OBM)– Enhances surface recovery of OBM

Increased spacer fluid volume helps improves wellbore cleanout and thus cement bonding

Fluid stability helps eliminate /reduce settling in horizontal wells

Rheological properties can be adjusted to optimize fluid train– Plastic viscosity (PV) – Yield point (YP)

Can reduce or eliminate use of surfactant package

Page 4: Tuned ®  Spacer VI Spacer Fluid

4 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Tuned® Spacer VI Spacer Fluid – Features

Density ranges from 8.15 lbm/gal to 14.0 lbm/gal

Superior suspension properties increases fluid stability– Helps mitigate solids settling

of cuttings – Helps mitigate bridging off

across thief zones – Avoids filtrate loss to the

producing zones or fresh water aquifers

Maintains constant hydrostatic pressure

Page 5: Tuned ®  Spacer VI Spacer Fluid

5 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Tuned® Spacer VI Spacer Fluid – From the Field

Challenge: Achieve zonal isolation throughout the wellbore, from shoe to surface

– Improve bond logs over wells previously cemented in the field

– Avoid using WBM to mitigate casing failures due to corrosion

Solution: – Replace WBM with Tuned Spacer VI fluid– Utilize the settable properties of the spacer

for a hydraulic seal above the top of cement to the surface

– 50 bbl of Tuned® Spacer III spacer fluid, 418 bbls of Tuned Spacer VI fluid followed by the lead cement slurry, cap and foam cement

Results: – Achieved full returns of Tuned Spacer VI fluid

to surface and plug bumped– Bond logs indicated superior cement-sheath

isolation and bonding above top of cement from Tuned Spacer VI fluid

– Procedure has been adopted and successful in subsequent wells in the same field

Page 6: Tuned ®  Spacer VI Spacer Fluid

6 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Tuned® Spacer VI Spacer Fluid – From the Field

Challenge: Cost Management – Optimize recovery of OBM– Decrease remediation costs incurred

in similar offset wells (cement sheath de-bonding during completion operations)

Solution: Extend contact time of spacer for enhanced wellbore cleaning

– 151 bbls Tuned Spacer VI fluid immediately preceding 445 total bbls of primary cement

Results: – Significantly improved CBL– No remediation required after

completion operations– CBLs showed complete coverage

above top of cement due to cementitious set of remaining Tuned Spacer VI fluid

CBL above TOC shows solid set and bonding of remaining Tuned Spacer VI fluid

CBL of offset wellshow annular seal

Requiring remediation.

CBL of well in whichTuned Spacer IV fluid was run

shows excellent bonding.

Page 7: Tuned ®  Spacer VI Spacer Fluid

7 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Tuned® Spacer VI Spacer Fluid – Summary

Provides cost efficiencies– Increased spacer volume– Can replace WBM and optimize wellbore cleaning– Improved OBM recovery

Adjust density and rheology Cementitious properties helps improve hydraulic seal Fluid stability

Page 8: Tuned ®  Spacer VI Spacer Fluid

8 © 2012 HALLIBURTON. ALL RIGHTS RESERVED.

Who to Contact, Where to get more information

NameTitle

[email protected]

Phone: 123-456-7890Fax: 123-456-7890Cell: 123-456-7890

www.halliburton.com