Tech Report

Lab Analysis: Fulcrum Technology Maintains Cement Properties

Published: 09/19/2019

Tech Report

Lab Analysis: Fulcrum Technology Maintains Cement Properties

Published: 09/19/2019

Representation of cement channels after horizontal well cementing

For cement mixed at 13.2 lbm/galUS [1.58 g/cm3], slurry and set cement properties were comparable for the conventional and Fulcrum technology-enhanced cements, except that the channeled mud near the Fulcrum technology-enhanced cement had much higher resistance to flow. Results for other densities are available upon request.

Lab Testing Results Summary

Property	Conventional Cement	Cement with Fulcrum Technology	Change, %
Property Density, lbm/galUS	Conventional Cement 13.2	Cement with Fulcrum Technology 13.2	Change, % 0
Property Conditioned viscosity, cP	Conventional Cement 51.9	Cement with Fulcrum Technology 55.9	Change, % 8
Property Conditioned yield point, lbf/100 ft²	Conventional Cement 13.1	Cement with Fulcrum Technology 10.72	Change, % –18
Property Free fluid	Conventional Cement 0	Cement with Fulcrum Technology 0	Change, % 0
Property Sedimentation	Conventional Cement 0	Cement with Fulcrum Technology 0	Change, % 0
Property Thickening time, h:min	Conventional Cement 4:47	Cement with Fulcrum Technology 4:50	Change, % 1
Property Fluid loss, mL	Conventional Cement 80	Cement with Fulcrum Technology 80	Change, % 0
Property Time to 500-psi compressive strength, h:min	Conventional Cement 6:59	Cement with Fulcrum Technology 8:23	Change, % 20
Property Mud channel yield point, lbf/100 ft²	Conventional Cement 65.2	Cement with Fulcrum Technology 1,185.9	Change, % 1,719

Location

United States, North America, Onshore

Details

Testing Parameter	Value
Temperature, degF [degC]	340 [171]
Density, lbm/galUS [g/cm³]	12 to 16.2 [1.44 to 1.94]

Background

As operators accelerate the use of Fulcrum cement-conveyed frac performance technology to improve stage-to-stage isolation before fracturing, lab work was designed to verify zonal isolation and cement stability with and without the additive. Conventional cement and cement enhanced with Fulcrum technology were tested for common critical cement properties such as compressive strength and thickening time.

Products Used

Fulcrum

Cement-conveyed frac performance technology

Improve multistage fracturing efficiency by limiting stage-to-stage communication behind the casing.