Mud 10 & Mud 8 Centrifuges

HORIZONTAL VIBRATING CUTTINGS CLEANING EQUIPMENT

MUD 10 and MUD 8 Applications

  • Reduction and recovery of SOBM from drill cuttings prior to discharge offshore
  • Reduction and recovery of OBM from drill cuttings prior to discharge offshore
  • Recovery of OBM from drill cuttings prior to shipping for onshore disposal, reducing volume and disposal costs
  • Recovery of OBM from drill cuttings produced on land based OBM operations, reducing transport and disposal costs
  • Increasing capacity of thermal treatment systems

Benefits of MUD 10 and MUD 8 Systems

  • The most effective synthetic Mud Recovery system available
  • Unlimited effective process capacity
  • Compact and robust equipment
  • Zero consumable operating cost
  • 60% reduction in synthetic mud costs achievable
  • Well average discharges down to 40 g/kg
  • Accelerated biodegradation of discharged cuttings

Basic Principles

The system induces a centrifugal force of up to 130 G on well drill cuttings, and separates the oil-based mud and sub 200 micron drill cuttings from the main stream of cuttings. This in turn allows the separated fluid to be treated with a decanting centrifuge at between 1500 G and 1800 G to remove and dry the drill solids retained in the recovered mud.

Drill cuttings being discharged from the primary shakers are transferred by a variable speed mechanical conveyor system to the inlet pipe of the ‘Mud’ unit, where they fall into the inlet pipe and are fed by gravity to the distribution cone/support disc. A distribution cone removes the cuttings from the discharge end of the inlet pipe and accelerates and spreads them evenly onto the inner circumference of the conical wedge wire screen. The drill cuttings are retained on the inner circumference of the wedge wire screen by centrifugal force, and Linear Motion is induced axially onto the conical wedge wire screen, conveying the retained drill cuttings to the discharge end of the conical wedge wire screen. The oil-based mud is forced through the apertures in the wedge wire screen by the centrifugal force, and the recovered mud flows from the discharge point to be collected for secondary treatment.

Secondary treatment is carried out by a decanting centrifuge, which will remove drill solids down to 5 microns. The viscosity of the recovered mud being processed by the decanter should be monitored. A high viscosity in the recovered mud will reduce the effective cut point of the decanting centrifuge, and viscosity reduction can be achieved by small additions of active mud or base oil, if necessary.

Model MUD 10

Equipment Weight: Dry Weight 3600kg Wet Weight 3800kg
Equipment Dimensions: L 2260mm x W 1880mm x H 1705mm
Capacity: 80 tonnes/hour
Service Requirement: 85 amp, 440volts electrical supply, 100 psi air supply, wash down facility

Model MUD 8

Equipment Weight: Dry weight 1100 kg Wet weight 1150 kg
Equipment Dimensions: L 1500 mm x W 1375 mm x H 1412 mm
Capacity: 35 tonnes/hour
Service Requirement: 40 amp, 440 volts electrical supply, 100 psi air supply, wash down facility

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