CEMENTING
Halad®-568LM Fluid Loss Additive
Offshore cementing operations where logistics favor the use of
a minimal suite of additives is the primary application of
Halad®-568LM fluid-loss additive. It helps improve slurry
stability and, at the higher concentrations, provides some
element of gas control.
Halad-568LM fluid-loss additive can be used alone to design low
viscosity slurries with good fluid loss control for slurries used
during primary cementing operations and is compatible with
dispersants and retarders. It can also be used with other
fluid-loss additives to enhance overall slurry performance.
When used in standard density slurries (~15.8 ppg),
Halad-568LM additive still provides easily mixable slurries with
good fluid loss control across a wide temperature range.
Benefits and Advantages
• Provides excellent fluid-loss control up to 300°F (148°C)
bottomhole static temperatures (BHCTs) and is compatible
with lower-temperature fluid-loss additives.
• A liquid additive that is easily used through a liquid additive
system.
• Can be used across a wide range of density and temperature
conditions by modifying the concentration and/or the
concentrations of other additives (dispersants and retarders).
• Suitable for use in both fresh and seawater making it
particularly attractive for offshore applications.
Halad®- 568LM Fluid Loss Additive –
Properties
Description of Product
High Temperature
Fluid Loss Additive
Function
Fluid Loss Control
Generic Chemical Description
Aqueous Polymer
Blend
Form
Liquid
Colour
Dark brown
Specific Gravity
1.07 – 1.10
Bulk Density
8.9 - 9.2 lbm/gal
pH
6.0-8.0
Halad® - 568LM Fluid Loss Additive – Test results at various temperatures
(15.8 ppg slurry system)
Fluid Loss – cc/30min
66
66
66
Thickening Time – hr:min
3:42
3:18
4:19
Compressive Strength – psi
3047
3124
3047
231 (111)
245 (118)
245 (118)
Halad® - 568LM additive – gps
0.60
0.60
0.60
HR® -12LM cement retarder – gps
0.08
0.10
0.13
CFR-3L™ cement dispersant – gps
0.15
0.35
0.35
SSA-1™ cement additive – BWOC
35
35
35
BHCT – Temp. °F (°C)
Note: All slurries were mixed in seawater and added with 0.01 gps D-Air 3000L™ antifoaming agent
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