Weighting Agents

Weighting agents let operators alter slurry density to restrain high formation pressures and improve mud displacement. Weighting agents also play important roles in preventing strength retrogression, decreasing cement-system permeability and helping to control settling and gelation.

MICROMAX® Weight Additives
A hausmannite ore that has been ground to an average particle size of 5 microns which is used to increase slurry weight.

Weighting Agents

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Summary Summary Bentonite (Halliburton Gel)
Bentonite (Halliburton Gel) is a colloidal clay mineral composed primarily of smectite. It may also contain accessory minerals, such as quartz, feldspar, and calcite. In fresh water, bentonite swells to approximately 10 times its original volume.
Summary Summary Barite Heavyweight Additive
Barite heavyweight additive is a barium sulfate material used to weight drilling muds and cement slurries. Typically, 85 to 90% of barite additive will pass through a 325-mesh sieve.
Summary Summary Spherelite™ Cement Additive
When combined with the proper type of cement, Spherelite™ cement additive can provide slurry densities of 9.5 to 12 lb/gal. The 24-hour compressive strength of these slurries can range from 100 to 700 psi at curing temperatures of 28° to 140°F (-2.2° to 60°C).
Summary Summary Spherelite™ Cement Additive A-4
When combined with the proper type of cement, Spherelite™ cement additive can provide slurry densities of 9.5 to 12 lb/gal. The 24-hour compressive strength of these slurries can range from 100 to 700 psi at curing temperatures of 28° to 140°F (-2.2° to 60°C).
Summary Summary Attapulgite
Attapulgite suspending agent is a colloidal clay mineral composed primarily of magnesium silicate, silica, and crystalline quartz. In salt water, attapulgite suspending agent swells to approximately 10 times its original volume.
Summary Summary Bentonite (Halliburton Gel) A-4
Bentonite (Halliburton Gel) is a colloidal clay mineral composed primarily of smectite. It may also contain accessory minerals, such as quartz, feldspar, and calcite. In fresh water, bentonite swells to approximately 10 times its original volume.
Summary Summary Econolite Additive
Halliburton's Econolite additive is used in oilwell cementing to increase volume, decrease density, provide a detergent action, and reduce costs; the resulting slurries are widely used as filler cement. The additive is dry-blended, in finely ground powder form, with API cement Classes A, C, H, and Halliburton LIGHT cement at the rate of 1 to 3% by weight. Econolite additive cannot be used with calcium chloride (accelerator).
Summary Summary Econolite Additive A-4
Halliburton's Econolite additive is used in oilwell cementing to increase volume, decrease density, provide a detergent action, and reduce costs; the resulting slurries are widely used as filler cement. The additive is dry-blended, in finely ground powder form, with API cement Classes A, C, H, and Halliburton LIGHT cement at the rate of 1 to 3% by weight. Econolite additive cannot be used with calcium chloride (accelerator).
Summary Summary Hi-Dense® No. 3 and No. 4 Weight Additives
Halliburton's Hi-Dense® weight additives can be added to cement slurries to restrain high formation pressure, increase slurry density, and improve mud displacement. The two available grades of Hi-Dense additives are classified according to mesh size. These hematite-ore additives can be mixed to form 26-lb/gal slurries with an effective specific gravity of 3.15. Halliburton markets these products as Hi-Dense No. 3 and Hi-Dense No. 4.
Summary Summary MICROMAX™ Weight Additive A-4
MICROMAX weight additive consists of a hausmannite ore ground to an average particle size of 5 microns. This additive is primarily used to increase slurry density.
Summary Summary MICROMAX™ Weight Additive (Russian)
Russian language version of data sheet.
Summary Summary MICROMAX™ Weight Additive
MICROMAX weight additive consists of a hausmannite ore ground to an average particle size of 5 microns. This additive is primarily used to increase slurry density.
Summary Summary Weighting Agents
Weighting agents increase slurry density to help restrain high formation pressures and improve mud displacement. They also help prevent strength retrogression, can decrease permeability in cement systems, and help control settling and gelation.
Summary Summary MICROMAX® Weight Additives
A hausmannite ore that has been ground to an average particle size of 5 microns which is used to increase slurry weight.
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