80

100

60

40

20

0 4

C on

si st

en cy

, B c

Time, h 1 2 3

Conventional cement EcoShield system

Thickening Time

Slurry density

11.6

1,400

15.0 lbm/galUS

1,800 kg/m³

Bottomhole circulating temperature

120

48

180 degF

82 degC

Fluid loss

0 40 mL

Salinity

0 15% NaCl

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EcoShield Applications

→ Land operations

How it improves performance EcoShield™ geopolymer cement-free system provides an alternative to portland cement while delivering comparable performance.

EcoShield system matches the thickening time of conventional cement system.Operational range for EcoShield system.

Comparison of Rheological Parameters for 14.8 lbm/galUS EcoShield System with Similar Conventional Cement System

Parameter Conventional cement EcoShield system

Plastic viscosity, cP (Bingham) 36 35

Ty, lbf/100 ft2 (Bingham) 23 8

Ty, lbf/100 ft2 (Herschel-Bulkley) 9 8

Comparison of Compressive Strength for EcoShield System with Similar Conventional Cement System at 142 degF

Density—11.6 lbm/galUS Density—14.8 lbm/galUS

Conventional Cement Ecoshield System Conventional Cement Ecoshield System

Compressive strength–50 psi, h:min 8:45 8:27 1:42 1:45

Compressive strength–24 h, psi 480 240 2,180 1,060

Ultimate compressive strength, psi 500 750 3,000 3,500

All specifications are subject to change without notice.

Geopolymer cement-free system

How it works EcoShield system matches the rheology, thickening time, and compressive strength properties of portland cement-based systems. The technology fits within standard oilfield cementing workflows without major changes to the design process, onsite execution, or postjob evaluation.

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