Shale shaker is a conventional equipment used to separate solid phase from circulating drilling fluid. There are many shapes and types of shale shakers. Commonly used are
cobalt well fluid flows along the center on a square or rectangular screen cloth.
drilling fluid flows along the center on a rotating, non vibrating cylindrical screen cloth
drilling fluid flows from the center to all around on a circular screen cloth.
Although vibrating screens of other shapes have been in trial use, they have not been commercialized. Most vibrating screens adopt rectangular screen cloth. Large solid particles are removed at the bottom of the vibration. Small solid particles and drilling fluid flow through the screen surface and re-enter the circulation system. The solid in the drilling fluid greater than 74um is unfavorable to the performance of the drilling fluid. Api200 mesh (74um) vibrating screen is formulated on this basis. Only 3% of the weighting materials that meet the API classification standards have a particle size greater than 74um. The screen mesh is larger than 74um. Under this size, most barite will be removed from the drilling fluid, which will seriously affect the performance of the drilling fluid and the drilling cost. Vibrating screen is the most important and earliest equipment used for solid phase removal, which plays a very important role in solid control system. It is the first line of defense after the drilling fluid returns to the surface from the wellbore, which generally has a great impact on the cost. However, if the damaged screen cloth is used, the cobalt well fluid does not pass through the screen cloth, and the mesh number of the screen cloth is improperly selected or partially damaged, the next solid control system will not operate normally. Shale shaker is suitable for any type of drilling fluid. The selection of screen cloth is determined by circulation speed, shale shaker structure, borehole properties, drilling fluid performance and other factors. Many properties of drilling fluid show the processing capacity of screen cloth.
GN solids control has been in shale shaker manufacture for more than 15 years, we can provide different type shaker according to client requirement. If you have demanded , welcome to contact us.