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Mini COBRA 3-Panel Mud Conditioner

Fortifying solids control with a small footprint and low weir height.

Render of  Mini-COBRA Mud COnditioner
  • Description Description
  • Ruler Specifications
  • Resources Resources

Fortifying solids control with a small footprint and low weir height.

The low weir height of 24 in. (611 mm) enables the Mini COBRA™ 3-Panel Mud Conditioner to fit on smaller land rigs for which flowline slope is critical. As the name infers, the Mini COBRA 3-Panel Mud Conditioner is a three-panel shaker that has many compatible parts with other COBRA and KING COBRA™ shakers. Common screens, screen support material, and Hammerwedge screen fasteners simplify inventory requirements for contractors with COBRA or KING COBRA shakers in their fleet.

Multiple units can be supplied on a single skid and feature a common feed distribution to reduce installation time and costs and ensure balanced flow to each shaker. The Mini COBRA 3-Panel Mud Conditioner generates 6.5 G’s of efficient linear motion to rapidly remove drilled solids, saving valuable drilling fluid and reducing drilling waste.

The basket design sets the feed end at 0° and the discharge end at +5°. This basket angle minimizes liquid pool depths, which reduces fluid weight on screens. The basket angle is also adjustable. The flat screening surface evenly distributes fluid across the shaker. All these features maximize usable screen area.

The popular COBRA shaker family is also available as the BRANDT™ Mini COBRA 2-Panel Mud Conditioner.


Mini COBRA 3-Panel Mud Conditioner Specifications

Vibration type Linear
Quantity of screens 3 screens (not included)
Deck type Contour (0°, +5°, +5°)
Basket angle Adjustable, 0 to +3°
Screen area 25.5 ft2 (2.4 m2)
G-force 6.5 nominal G
Vibrator drive (2) Vibra-Motors
Length × Width × Height 104⅝ × 64¼ × 507/16 in. (2657 × 1632 × 1281 mm)
Weir height 24 in. (610 mm)
Weight 3,800 lbs (1723 kg)
  • BRANDT Mud Conditioner Headers Spec Sheet (English)
  • BRANDT Mud Conditioner Headers Spec Sheet (Portuguese)
  • BRANDT Mud Conditioner Headers Spec Sheet (Spanish)
  • BRANDT Mud Conditioner Headers Spec Sheet (French)
  • BRANDT Mud Conditioner Headers Spec Sheet (Arabic)

BRANDT Mud Conditioners

BRANDT mud conditioners are manufactured in Conroe, Texas, and are engineered to meet the specifications demanded by the application in most cases. Mud conditioners are just one of the many solids control and waste management offerings that BRANDT supplies to the oil and gas industry. NOV Quality Management System is ISO 9001-2000 certified.

Mud conditioners were first designed to remove fine-drilled solids from weighted muds without excessive loss of barite and fluid. Their primary purpose now is to desand weighted muds. Due to advancements in fine screening at the flowline, the mud conditioner’s use in the weighted hole section is much more limited than in previous decades. Consequently, the mud conditioner is used in this application to desand the mud until the primary shakers can maintain the sand content of the mud to a trace. The secondary use of a mud conditioner occurs when environmental conditions prohibit the use of a reserve pit. The mud conditioner is used to reclaim liquid from the hydrocyclone underflow while drilling hole sections with unweighted mud.

Typically, multiple desander cones (12- or 10-in.) and desilter cones (4-in.) are mounted above the screen deck of a shale shaker. The size of the solids (in microns) removed by these units is directly correlated to the size of the cone. The larger the cone, the larger the size of the particle removed and vice-versa. The mud is fed first through the hydrocyclones, where it subsequently cascades down over the shale shaker. The remaining solids, including barite, are returned to the mud system.