CemCRETE

The concrete The concrete science of zonal science of zonal

isolationisolation

An Advanced Cement Technology from

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With more waterWith more wateryou have:you have: lower density.lower density. lower viscosity.lower viscosity.

Good slurry properties Good slurry properties Good mechanical Good mechanical propertiesproperties

For oil well cement designFor oil well cement designyou need wateryou need water

but you also have:but you also have: longer working time.longer working time. lower compressive lower compressive

strength.strength. higher permeability.higher permeability.

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Oil well cement slurriesOil well cement slurries

Cement particles must be surrounded Cement particles must be surrounded by water to flow as a slurryby water to flow as a slurry

Sufficient water Sufficient water must first be must first be added to fill the added to fill the void between void between the cement the cement grainsgrains

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Advanced Cement Advanced Cement TechnologyTechnology

CemCRETECemCRETE uses particle size distribution to uses particle size distribution to maximize solid and liquid contentmaximize solid and liquid content

Less water is Less water is wasted in the voidwasted in the void

Slurry properties Slurry properties andand mechanical mechanical properties are properties are optimizedoptimized

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CemCRETE Advanced Cement Advanced Cement

TechnologyTechnology

CemCRETE

LiteCRETE

DensCRETE

DeepCRETE

SqueezeCRETE

Production cements are Production cements are lighter. lighter.

High-density cements have High-density cements have greater versatilitygreater versatility

Cold-water cements set Cold-water cements set faster.faster.

Remedial cements inject Remedial cements inject better.better.

At any slurry densityAt any slurry density

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The effect of The effect of CemCRETECemCRETE technology on liquid technology on liquid

slurriesslurries

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How much less water is in How much less water is in CemCRETE??

CemCRETE

Conventional lightweight

Normal Portland

0 2 4 6 8 10 12 14

Mix water needed (gal/ cu. ft)

60% solid volume fraction @ 8 - 23 lb/gal

41% solid volume fraction @ 15.8 lb/gal

23% solid volume fraction @ 12.5 lb/gal

Less water = improved mechanical properties

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Advantages of Advantages of CemCRETECemCRETE technology technology

Density is disconnected from rheologyDensity is disconnected from rheology Lower permeabilityLower permeability Compressive strengths higher and fasterCompressive strengths higher and faster Improved mechanical durability (Improved mechanical durability (t/et/e)) Improved injectability for remediationImproved injectability for remediation Improved field operationsImproved field operations

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Permeability (mD)

0

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

0.2

Lightweight Conventional

Conventional cement propertiesConventional cement propertiesvs. vs. CemCRETE technology technology

24 hr Compressive Strength (psi)

0

500

1000

1500

2000

2500

3000

3500

4000

Lightweight Conventional

Slurry Porosity (%)

0

10

20

30

40

50

60

70

80

90

Lightweight Conventional

Fluid Loss (mL)

0

20

40

60

80

100

120

140

160

Lightweight Conventional

Acid Solubility (wt %)

0

5

10

15

20

25

30

35

40

Lightweight Conventional

CemCRETE

Conventional cements

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LiteCRETE

LiteCRETE slurries can slurries can changechange your current casing programyour current casing program

– single stage replacement of two-single stage replacement of two-stage cementingstage cementing

– deeper casing setting pointsdeeper casing setting points– elimination of intermediate stringselimination of intermediate strings

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LiteCRETE