displace 3d presentation open day 09.06

8/6/2019 Displace 3D Presentation Open Day 09.06

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2010 Halliburton. All rights reserved. Open Day Halliburton Celle, 09. June 2010

Preparing the Wellbore to Receive CementDisplace3D A full 3-dimensonal Simulator that Can

Optimize Complete Cement Placement

Malte PetersenAssociate Technical ProfessionalCelle, Germany


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Agenda

Primary Cementing Reasons (Best practices)

Research on Standoff

Displace 3D- Cement Job Design and Simulation

Annular Displacement Study

Conclusions


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Reasons for Cem en t in g :

1) Remove mobile mud

2) Create structural integrity

3) P rovide zonal isolation4) Protect fresh water zones

5) Prevent casing failure

6) P rovide strong foundation for future w ellevents like perforating, fracturing, production ,and injection

Primary Cementing


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Risks of a Poor Cement Job?


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Industry Best Practices

Top Five:

Condition the drilling fluid Use spacers and flushes Move the pipe Centralise the casing Maximise the

displacement rate


6/28 2010 Halliburton. All rights reserved. Open Day Halliburton Celle, 09. June 2010

Halliburton Standoff Research


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Experimental Results (3)



Study Conclusions

The preferred annular fluid velocity ratio is 1. When ratio of a slurry isnot equal to 1, the TOC on the wide and the narrow side of an

annulus will be different. Generally, the more viscous the fluid the higher the velocity ratio,

with all other parameters held equal.

In most instances, an annular fluid velocity ratio of approximately 1can be achieved with an optimized combination of casingcentralization, pump rate, and fluid rheology.

When a fluid velocity ratio of 1 can not be achieved the amount ofcement excess may need to be adjusted to achieve the desired

cement top height on the narrow and the wide sides of the annulus. When a high degree of casing centralisation is difficult to obtain and

when a velocity ratio of approximately 1 is required, then lowviscosity fluids (muds, flushes, spacers, and cements) may berequired.



More Information on Study



Key Features

3D pipe flow

3D annular flow Best fit yield-stress rheology Ability to model 8 separate fluids Gravity and inclination effects

Temperature effects Reciprocation or rotation effects Dynamic calculation of miscible intermixing between

fluids Accounts for fluid turbulence impact on friction and

pressure drop Interactive 3D visualization tool-kit Dynamic calculation of channel length Calculation of true top-of-cement (TOC)

Dynamic displacement efficiency calculation as afunction of time and well-depth


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Preparing the Wellbore



Cement

Interface

Mud

30% 70%

Total Depth

Surface

Standoff

Centralization Risk & Reward

2009 Halliburton. All rights reserved.
http://../My%20Documents/Work%20stuff/hbbe209/Desktop/EPCS%20Oct%202009/Standoff%2070.avihttp://../My%20Documents/Work%20stuff/hbbe209/Desktop/EPCS%20Oct%202009/Standoff%2030.avi



30% 70%

CementFraction

Standoff

Top of Cement

Top of Cement

Centralization Risk & Reward



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100 barrels

SpacerFractionSpacer Volume Risk / Reward

50 barrelsSpacerVolume

http://../My%20Documents/Work%20stuff/hbbe209/Desktop/EPCS%20Oct%202009/Spacer%2050.avihttp://../My%20Documents/Work%20stuff/hbbe209/Desktop/EPCS%20Oct%202009/Spacer%20100.avi



Variables Affecting Cement Placement



Tuned Spacer III

Spacer Selection Risk / Reward

Water SpacerType

100% Mud

100% Water

100% Lead CementSlurry


100% Mud

100% TS III

100% Lead CementSlurry



20 RPM

CementInterface

Mud

No

Rotation

Pipe Movement Risk / Reward

http://../My%20Documents/Work%20stuff/hbbe209/Desktop/EPCS%20Oct%202009/Rotation%2020.avihttp://../My%20Documents/Work%20stuff/hbbe209/Desktop/EPCS%20Oct%202009/No%20Rotation.avi



Annular Displacement Study

ID Outer cylinder: 6.5 in OD Inner pipe: 4.5 in Annular length: 4 feet Variables

Standoff Fluid Viscosities Pump Rates Inner pipe rotation

Visualisation of flow
http://rotation_adelaide.wmv/


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Experiment vs. Displace 3D TM Simulator

After 10-sec After 20-sec After 30-sec


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Conclusions Displace 3D

Determination of true TOC

All calculations are considering a 3D wellboreenvironment.

Able to look at fluid properties, pump rates, casingsolutions, volumes, casing movement in combination.

High variety of simulations possible, allowing manyoptions to optimize the cement design/placement andtherefore helps to make better decisions.


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Where It All Comes Together

Thank You for Your Attention!