How does 4 stage oil drilling fluids system work

Nov. 3, 2010 - PRLog -- I. Oilfield drilling fluids processing equipments

Usually, in oilfield drilling fluids processing solids control equipments are four stage. Including Shale shaker;

Vacuum degasser; Desander & Desilter or fluids processing cleaner combined with desander, desilter and underflow shaker; Then the Decanting centrifuge.

Besides above listed ones, we also need assistant equipments to support the whole fluids processing sytem.  Such as mud mixing pump; Centrifugal pump divided into Horizontal and Vertical type, as well as Submersible slurry pump; fluids processing agitator; Poor boy degasser; Flare ignition device.
http://www.gn-shale-shaker.com/how-does-gn400-mud-solids-removal-system-work/


II. Four stage Drilling fluids processing sytem process

I) First stage solids contorl
The shale shaker is key equipments and first stage equipments on drilling fluids processing system. Nowadays, shale shaker can be linear motion shaker, balanced elliptical shale shaker, also the dual motion shale shaker as we talked before. The fluids processing flow into shaker by high way pipeline. The vacuum degasser follow shaker.  

Then processed by shale shaker separate partical bigger than 76 microns.Vacuum degasser will get rid of small capacity invaded gas.

II) The second-third stage processing
Then the clean fluids processing will fall into the shaker compartment and pumped by desander pump into desanding cones inlet.  After desanding the clean fluids processing will flow into the desilter compartment and pumped into desilting cones inlet by desilter pump. The fluids processing after desilter process will down to underflow shaker after that the partical size will be less than 15microns.
http://www.gn-shale-shaker.com/how-does-mud-cleaner-work/

III) The fourth stage
The decanting centrifuge is the 4th solids control equipment in oil well fluids processing system. After fluids processing by mud cleaner  there will be particals less than 15 microns. And usually the centrifuge can separate solids between 2-7microns. The speed is important issue decides treating capacity and separation size.

Commonly, 1800RPM can separate solids larger than 5-7 microns, and 3200-3500 can separate particals 2-5 microns. As we all know, the relationship between speed and treating capacity is inverse ratio


III. Other assistant fluids processing equipments

Such as Centrifugal pump, used in pumping fluids processing for desilter and desander. And there maybe vertical type for centrifuge. At this time it will be submersible slurry pump; the fluids processing mixing pump combined with centrifugal pump, Ventrie hoppers used to feeding fluids processing material, do some circulation or configuration on drilling fluids processing, the fluids processing mixng pump also can be combined with shearing pump to do more strong and effective processing.

About the mud mixer, it is usually used together with mud gun as mixing device to make drilling fluids processing more even; Finally the poor boy degasser and flare ignition device, http://www.prlog.org/11016099-elevating-poor-boy-degasser...
they are specific equipments to avoid accident on oil well drilling, the poor boy degasser get rid of large quantity invaded gas in fluids processing, after degasser processing the flare ignition device will burn it up to make sure satety operation

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GN provides you qualified goods at your budget. including shale shaker, mud cleaner, decanter centrifuge, centrifugal pump, decanter centrifuge, mud agitator, mud jet mixer, mud gas separator, flare ignition device, whole mud purification sytem