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When we running desander cyclone there should produce discharge jet type, while the nozzle has a small suction. If you do not have a steady jet and suction pressure, Desander cyclone is not working properly, it should be timely maintenance. Need to understand the maintenance desander common faults, their causes and solutions.

Fault 1: the discharge port bonding, liquid and solid phase bonding.
Reason: solid-phase overload.

Drilling fluid shale shaker is a kind of filterable mechanical separation equipment, compared with other mechanical separation equipment, its unit cost is a kind of economy and high efficiency separation equipment which obtain solid removal amount. Drilling fluid shale shaker is made of screen body, machine rack and gearing, according mechanical vibration make solid phase which is big than screen hole and the adhesive attraction will screen the solid phase particles which is smaller than screen hole.

Condition temperature is one of the affected factors to make sure normal operation for shale shaker. In summer, temperature condition always surpasses what shale shaker could bear. Generally, 40 centigrade is the limit temperature for shale shaker working condition. Therefore, not only production conditions but also working condition, especially temperature factor should be taken into consideration for the equipment itself. The following description will focus on effective measures to make sure normal operation of shale shaker preventing high temperature conditions.

Solids removal on the rig is accomplished by the following techniques: shale shakers, desander , desilter, centrifuge. Each device is designed to remove a sufficient quantity and size range of solids. Often these are accomplished using separate devices, but sometimes these processes are combined, as in the case of the mud cleaner, which is a bank of hydrocyclones mounted over a vibrating screen. Another important hybrid device is the cuttings dryer, which is a centrifuge fitted with a cone-shaped shaker. Additional devices can help enhance solids-removal efficiency.

Jet Mud Mixer is used with solids control equipment,it supporting the use of the equipment , it can meet the needs of different depth of mud solid control system of drilling fluid weighting and compounding . It set up by a sand pump (or many sets ), a Jet mixing hopper (or many sets) , with manifold valve connection installed in a base . Aggravated hopper and sand pump can be combined and fission installation, aggravating hopper and sand pump is used between manifold valve connection .

Drilling centrifuge is used as the 4th phase solids control equipment after shaker, desander and desilter. The centrifuge suck the mud from the compartment receiving the discharge from the desilters and mud cleaners, and the returned stream is directed to the next compartment downstream.
The use of decanter centrifuge with the drilling mud is
(1) removal fine solids from unweighted fluids

In order to separate the gas effectively in the drilling, so an efficient degasser is essential to the safe and productive drilling operations. Since gas is practically insoluble in water, it is relatively easy to detect and remove. By comparison, gas is easily soluble in oil-based muds to detect and remove it are both more difficult. Regardless of the composition of the gas encountered, gas existing in the mud can decrease efficiencies in rig pumps, centrifugal pumps and associated operational equipment. The goal is to “Keep the pumps operating”.

How to keep drilling mud solids control system more efficient ?
1. Weak capacity of oilfield solids control equipment:
It should be taken into consideration how much the fluids can be injected into mud tanks according to equipment’s actual capacity and how much the flow rate is in mud agitator in order to guarantee the quality of processing the fluids.

KOSUN MD series high effective oilfield drilling fluids cleaner is the second or third stage drilling fluids solids control equipment of drilling fluids recycling system.This oil drilling fluids cleaner will handle the solids particle after being treated by the first grade separation equipment. The mud will be recovered and cuttings which are bigger than mud will be removed. Then the cuttings in the underflow will flow into circulation mud tanks through the screens of the drilling mud cleaner when the weighted mud passes while the particles that are bigger than mesh will be removed.

The drilling shale shaker is the first stage of solids control equipment in drilling fluids system. It can remove cuttings above 75μm brought from the drilling well to leave the liquid with smaller particles into the drilling fluid circulation mud tanks below, which will flow into next grade drilling fluids solids control equipment to be treated.
The Economy of Linear Motion Shale Shaker