A shale shaker screen is an integral part of the drilling process as it directly contributes to the efficiency of solid control equipment. If not handled properly it may lead to a premature failure or damage of the shale shaker screens which could result in loss of resources as well as monetary loss for the operators. Thus it is very important to understand the proper installation process of a shaker screen in a shale shaker.
Let us take you through the shaker screen installation process one step at a time. The very first step in the process will be to shut down the equipment completely, unplug the power and wait for the equipment to come to a stationary position. Step two will be to clean the equipment that will hold the screen in place, in case you replacing the older ones, or want to just clean and refit the same screen, make sure the screen and the equipment is in clean condition and also look out for any wear and tear of screws or straps that holds to keeps the shaker screens in place. After this the third and final step is to mount the shaker screen panel onto the shaker deck and slid it toward the equipment to fit into the slot. Make sure that the draw bolts are unlocked beforehand and ready to engage with the screen panel’s feed end. Fasten all the screws and nuts back into the place.
The size and shape of shaker screen will vary from manufacturer to manufacturer and so will the fashion in which they will be mounted. Few popular examples are, Hook Strap Screen, Wedge Blocked Screen, Steel framed screen or composite frame screen. Each will essentially be different only in the way they are fastened to the shale shaker deck.
Drilling fluids are used while drilling holes on the surface of the earth for oil, natural gas and even for water wells. The different types of drilling fluids that are used are water, water based muds (mixture of water and clay or other chemicals), oil or synthetic oil.
The advantages of using drilling fluids are;
– Due to the continuous use of machines for long time, the machine get heated. These fluids helps in keeping the drilling machine cool.
– As there is continuous contact between the drill pipes and the walls of the holes, heat may be generated due to friction. Drilling fluids, especially oil based fluids provides lubrication to the drill pipes.
– Keeps the machine clean.
– Maintains pressure on formation fluids (naturally occurring fluids).
This drilling fluids are poured inside the hole with different flow rate and pressure. These fluids then collect the cuttings of rocks from the hole and are then forced out of the hole by a pump. This mixture is then passed through a shale shaker.
A shale shaker is an equipment that removes large solids that are mixed with the drilling fluids, drilling waste, so that the fluids can be reused. These shale shakers not only improve the efficiency but also is very important from the cost cutting point of view. The basic parts of a shale shaker are the base of the shaker called Hopper, a feeder where the mixture of fluid and solid is collected, a screen and a vibrator.
Shale shaker is a vibrating equipment that uses a Shaker Screen (a mesh like structure supported on a frame) to separate the mixture. The vibratory motion may either be linear, elliptical or circular. The efficiency of a shale shaker also depends upon the vibration speed and the amplitude and frequency of the shale shaker.
The main functions of shale shaker is to make the drilling fluids reusable by separating the solids that are mixed with it.