Month: October 2010

After dredging work, we should separate the slurry, for envioment friendly or other purpose. GN FL 1000 is one perfect system for about 3000 gpm capacity. We will take this for example to introduce How the slurry separation work.

How the Slurry Separation Work

1. Entry: the dredged slurry enters the shale shaker directly from the dredge. In GN FL 1000, the slurry enters into the GNZS 83-3 shale shaker, (5 pcs)
2. Shale Shaker: there are 5 GNZS 83-3 shale shakers in FL 1000, treating capacity is 3000 gpm. With the proper shaker screen, the debris like grass, roots, leaves, cans, plastic, rags, and bottles can be separated, then the slurry to the next stage is in conditon that the biggest particles is 47-76um.
3. Desanding tank: The slurry going through the shale shaker, and drop into a tank, where it is picked up by a centrifugal pump.
4. De-sanding and De-silting: the pump, means SB 8*6*14 centrifugal pump moves the slurry to the second phase. Then it passs the desanding hydro-cyclones, to the desilting tank. Then the slurry will be pumped again to the desilting hydrocyclones. Dropped into another process tank. Until now the debris bigger than 20um (15-47um) are separated. Equipments referred is ZQJ 250 desander, and ZQJ 100 desilter. Continue reading “Operation of Dredge Slurry Separation System”

Mud rotary drilling is popular in wellbore drilling, offshore works, well drilling, Horizontal directly drilling, mining, geotechnical. Drilling fluid system is one very important part of the drilling work. The two main parts of the drilling fluid system is the actual drilling fluid and the solids control equipments, to separate the cuttings from the drilling mud at the surface, and circulating water based drilling fluid.

As we all know the quality and charactor of the drilling fluid effects the drilling works. The viscosity, density, fluid loss control, sand content, gel strength, and so on. The drilling fluid system is used to control them.
If not use the drilling fluid system correctly, effiently, there must be some trouble. High fluid density causes pressure in the formation of the borehole. This pressure drives the drilling fluid through the filter cake into the formation, leads to excessive drilling fluid loss to the formation, and extends well development time required to remove the mud from the formation. As the fluid density increases, the pressure required to move the fluid up the borehole also increases, leading to high mud pump pressure requirements. Continue reading “Drilling Fluid System”

Desilting and desilting kown as part of drilling mud cleaning is one important part of solids control system. While in solids control system, the desanding and desilting equipments are called desander and desilter, or combine them, as mud cleaner.

In a solids control system, desilting is after desanding work, and depends on the drilling mud character,  the desanding or desilting unit is not always need. GN Solids Control always can give our clients a appropriate solution.

Desilting cones is the main and core part of the desilter. The dimension of the hydrocyclones is 4″.  ZQJ 100s and ZQJ 100 is the usual model of GN, ZQJ100s means the desilting equipments with a small shale shaker.

Drilling Fluids Desilting equipments (desilter) Manufacturers

GN soldis control is one of the most important solids control equipment manufacturer.

Derrick, NOV Brandt, Mi swaco are very famous US manufacturers on solids control equipments.

Desilter of GN soldis control is popular all over the world

Drilling fluids desilting equipments (desilter) manufactured by GN solids control is very popular all over the world.

Five Sets of Desanders and Desilters for Kuwait Clients

Mud cleaner desilter cones to Indonesia

Even more…