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Shale Shaker Screen | How To Select And Use Proper

Oct. 15, 2022

Shaker screens are one of the most important and overlooked pieces of equipment on the drilling rig. The shale shakers are your first line of defense against drill solids and your primary solids control equipment.


The Shaker screen is a key factor in determining the success of your controlling mud and cuttings. It is very important to have the right shaker screen selected for your formation cuttings' bid type and mud properties.


Select Shaker Screen


Shale Shaker Screen

On the surface hole, drilled solids are usually larger which can be easily removed with a coarse mesh shaker screen, a mesh of 50 84, or 110 is usually adequate. However, intermediate and main hole cuttings are typically finer. Therefore it requires a finer mesh. I would recommend a minimum of a hundred and ten and beyond for very fine sand. The screen selection will also depend on ROP(rate of penetration), How well the hole is the cleaning and if you're adding else products that you may want to reuse to the system.


Use Screen Proper


Maintaining your shaker screens is as important as the screen selection itself. In normal drilling, it is important to ensure that the fluid comes about twenty-five percent to fifty percent of the way across the furthest screen from the flowline. Try to have the shaker deck as level as possible. This will allow for more consistency across the screens and typically means that the right size mesh has been selected. Jacking or raising the shaker deck up increases the amount of time that the solids will be on the shaker screens closer to a flow line. This will decrease the shaker screen life.


Be careful when cleaning screens not to puncture the mesh as this will diminish the effectiveness of the screen. The shaker screen with the top layer of mesh gone is also less effective and should be replaced when a shaker screen has a hole in it. there is no protection against drilled stones. why leave things to chance? This will have a dramatic effect on your drilling fluid.


Solids control has a wide range of benefits including, but not limited to:


ㆍIncreased drilling penetration

ㆍReduced mud costs

ㆍDecreased disposal costs

ㆍIncreased bit life


Replace Screen


Replacing a shaker screen is a lot cheaper than replacing a mud system or rebuilding mud pumps and directional tools. Enough to mention increased costs on the completion side of the well. It is also important to ensure that the shaker deck, rubber shaker bypass, and other components are in good working order at all times. If you open the bypass while drilling all the shales go underneath the shakers and into the mud tanks providing zero efficiencies.


The shale always manages to end up in the screen box of the feed pump which reduces the amount of volume processed by the centrifuge. The screen box is a great indicator, the more effective the shaker screens the more successful the centrifuge will be. The centrifuge will help to dramatically reduce mud costs, transportation costs, completion costs, and miscellaneous costs of rebuilding equipment.


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