With the reason of decreasing overall environmental impact, and reducing total cost for drilling operation.Fluids recovery technology is growing fast and wide. One of the major concerns about fluid loss recovery technology is ultrafines. Vacuum screen drilling recovery system does not create fines, which solve this problem.
Vacuum shaker screen can fit all types of shakers. It sucks the drilling mud out of the cuttings as it passes over the last screen on the shaker.
Vacuum shaker screen recovery system is attaching a vacuum manifold under the shaker screen or installing a vacuum manifold that has a shaker screen attached to it. The system is attached to the shaker’s vibrating basket so the manifold vibrates with the shaker as it is running. Attached to the manifold is a vacuum line with a fluid/air separator; this is connected to the vacuum collection tank. The vacuum unit is installed as close as possible to the shaker to keep the distance that the recovered fluid is transported as short as possible.
Advantages of vacuum shaker screen system:
- Increased emulsion stability in recovered fluid
- Higher density in recovered fluid
- Lower viscosity in recovered fluid
- No detrimental effects on main drilling fluid system rheology
- Decrease in low gravity solids to high gravity solids ratio
- Dehumidify fluid
- No evident increase in concentration of ultrafine solids
- Elimination of sawdust/rubber crumb usage for mixing off shaker cuttings
- Initial review saw a decrease in waste haulage by 20%
- Elimination or severe reduction in oil spray gun usage to clean shakers.
- Reduced centrifuging required
- Improved shaker operations, allowing for finer screens to be run
- Increased shaker screen life