Solids control shale shaker operation and other equipment impact
Solids control shale shaker is always referred as important equipment in whole drilling mud system.
Correct use of solids-control equipment is essential to maintain drilling fluid within its desired properties and to avoid generation of unnecessary waste streams during drilling. Since the early 1930s, the shale shaker has been the dominant device for primary solids removal. Additional equipment such as desilters, desanders, and centrifuges are often used in the past to maintain proper solids control. Nowadays, there are complete line equipment as whole process of drilling mud management. Although it is dependent on the choice of correct shaker screens, most shakers are supposed to perform sufficiently to be able to act as the sole solids control device without the use of desanders and desilters, such thoughts is popular especially when the shakers initially were operated in oil well drilling.
The optimum solids-control design for a particular drilling fluid may not be generally valid for all fluid types. For example, a combination of shaker and screens applicable for treating water-based drilling fluids may not be suitable for treating oil-based drilling fluids. Furthermore, the suitability of the screen and shaker combination may change during drilling because the drill-cuttings morphology changes. That means, we have to change shaker type or screen size in different well drilling or at different drilling phase
During the last few decades, major shaker-design improvements have been made. The circular-motion shakers used up till the 1980s have been replaced by elliptical-motion and linear- motion shakers. Furthermore, double-deck, or even triple-deck, shakers have been implemented in the industry. Alternatives to shakers have been tested to improve occupational hygiene aspects although this type of equipment has not yet reached the market. Sinusoidal-formed screens have been implemented on some shakers to increase the flow capacity (Neidhardt 1995).
Shaker operation has also been automated (Scott 2006). Scott claims that use of this automated system leads to an in- crease in shaker-screen life. However, Scott does not reveal the screen selection for this case. Therefore, it is difficult to use this information in the present analysis.
Removal of solids with a particle diameter larger than 120 to 150 m can be achieved without problems on most shakers today by the application of the correct screen size. There are many types of screens on the market. We have talked about the screen selection. Shaker and shaker screen will together impact whole solids removal efficiency.
Considering present drilling condition and environment, we kindly suggest operate complete line solids control equipment for better maintenance on mud properties, such as mud cleaner
, centrifuge decanter, and so on. Please come to Aipu solids control for optimal solution at your budget.