By ASME Shale Shaker Committee

The single source on hand to the drilling and petroleum engineer on drilling fluids processing.

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On the other hand, SBMs often can be discharged directly into the sea if they meet certain toxicity/biodegradability criteria and, in the United States, do not create a sheen; as a result, though SBMs generally incur higher initial costs than OBMs, disposal costs for SBMs tend to be considerably less, which can make them more economical to run. 4 Separation of Drilled Solids from Drilling Fluids The types and quantities of solids (insoluble components) present in drilling mud systems play major roles in the fluid’s density, viscosity, filter-cake quality/filtration control, and other chemical and mechanical properties.

Use of a shale inhibitor or deflocculant like lignosulfonate), (b) more frequent dilution of the drilling fluid with base fluid, and (c) more complex solidsremoval equipment, such as mud cleaners and centrifuges [Svarovsky]. In either case, solids removal is one of the most important aspects of mud system control, since it has a direct bearing on drilling efficiency and represents an opportunity to reduce overall drilling costs. 5 [M-I llc]. 5. Drilling Fluid Circulating System. ) the mud is very costly.

Solids are transported from a pool of liquid at the feed end of the shaker screen just as they are on a linear motion screen. When the linear motion shale shakers were introduced, several were frequently arranged in parallel to receive drilling fluid from scalping shakers. Since API 200 screens could be used on these primary shale shakers, mud cleaners were widely considered superfluous, and mudcleaner use diminished significantly. However, installation of mud cleaners, even with API 150 screens downstream from these linear motion shale shakers, revealed that some removable drilled solids were still in the drilling fluid.

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