Drilling waste treatment and disposal equipment from FD Petrol

CAIRO - June 13, 2014 - PRLog -- FD Petrol drilling waste treatment and disposal solutions including :

1.Verti G cuttings dryer for oil based mud drilling waste management

2.Dewatering unit for water based mud drilling waste management.

What is vertical cuttings dryer

Vertical   cuttngs dryer system (http://www.fdpetrol.com/case-study/drilling-waste-management/25-news/company-news/132-cuttings-dryer-utility-model-patent) is a vertical basket centrifuge with the objective of achieving less than 5% Oil on Cuttings and allow the operator to eventually switch to Synthetic (L.A.O.) base oil. The test was successful and most operators have converted to more economic synthetic drilling fluids using this cuttings drying technology. the vertical basket centrifuge is not only a sound technology, capable of ensuring a level of synthetic on cuttings allowing compliance with present regulations (less than 50 grams of oil per Kg of dry cuttings), but also has potential for further improvement (i.e.lower oil on cuttings).  Furthermore the cuttings dryer applications are likely to expand since the process reduces the volume of waste and allows to re-cycle the fluids, which are “high priority” waste management principles.

Verti G cuttings dryer is a vertical centrifuge, constituted of a rotating cone fitted with flights overcast by a conical screen basket. The conic unit, which is fed from the top, spins at high rpm, applying an increasingly important centrifugal force (over 300 Gs at the maximum diameter) to the cuttings.

http://www.fdpetrol.com/drilling-waste-management/vertica...

What is dewatering ?

1.Chemically enhanced centrifuging of excess mud volumes

2.Removes the majority of colloidal size solids from drilling fluids

http://www.fdpetrol.com/drilling-waste-management/dewater...

FD Petrol WBM DWM system integrate HGD unit ,catch tank, decanter centrifuge unit, mud mixer and mud lab unit ,pressure unit, filter and reverse osmosis unit, screw conveyor ,double screw conveyor and other auxiliary equipment.

Coagulation is the addition of chemicals to water causing colloidal particles within the water to stick or bond together when contact is made. Mixing is utilized during coagulation to provide a rapid and uniform dispersion of the chemicals and also increase the opportunity for particle to particle contact.  Normally, the entire process occurs in less than one second.
Flocculation generally follows coagulation and can be described as a chemical and physical bridging or agglomeration of the coagulated particles.  The flocculation process involves gently mixing the particles until distinct, suspended flocs are formed.

Separation of the liquid and solids of a mud system occurs easily as the centrifuge removes the larger flocked solids as a moist sludge.  The Dewatered sludge is discharged into a cuttings tank and the cleaned effluent is returned to storage or the active mud system.  If necessary a portion of the centrifuge effluent can be recycled for the dilution volume required by the dewatering system or returned to the active mud system or to the drill water tanks for use as dilution.