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Mi Swaco Parts & Tools

M-I SWACO became a Schlumberger company in 2010. Innovative drilling fluid engineers are at the company’s core, helping oil and gas operators increase efficiency and lower costs. We do this by developing drilling fluid systems and additives that accommodate a wide range of drilling environments and demanding applications—including HPHT, deep water and ultradeep water, shale gas, heavy oil, depleted wells, and more.

M-I SWACO drilling fluid systems

In SiteTec recycling units screens are used to direct, separate and control drilling fluids flow in the process. Recycling units are used to recycle drilling fluids. This process enables you to reuse drilling fluids during horizontal or vertical drilling projects. When working with drilling fluids it is regulatory economically and ecologically interesting to recycle on the jobsite.  The heart of recycling unit is the shale shaker. This vital piece of equipment filters out the gritty pieces from the drilling fluid (or “mud”), so the fluid can recirculate and thus continue the recycling process. The two main purposes for screening the recycling unit are to remove oversize material from the shaker or undersize solids from the mud recycling unit and completely size the solids produced. A recycling unit must perform both functions.

The feed may contain mud solids that does not have to be crushed and which should be removed from the input to the primary crusher. A scalping shaker is frequently used between the feeder and the primary crusher to remove from the feed material that is smaller than the setting of the crusher. It may be a grid, grate, or screen, and it may be stationary or it may vibrate. Solids removed from the feed is directed to finish screens and reduction crusher.

Mud recycling units

Mud recycling units normally uses horizontal screen to remove and recycle materials. The horizontal screen is a modern vision of the shaker screen for improved effectiveness caused by higher speed motion and a shorter stroke. It is similar to the inclined vibrating screen but it requires less headroom. Since it is held in a horizontal position, this screen is not used for scalping.

M-I SWACO screens on stock

Operators must be aware to protect their investment beyond purchasing durable screens. Proper maintenance will affect all screens’ quality. On job site, screens should be kept in their boxes and stacked flat, or in accordance with the manufacturer’s recommendations. Mishandling panels, especially during storage and installation, may cause premature screen failure. Operators should also ensure that screens are always properly mounted, check for proper tensioning and replace worn deck and crown (channel) rubbers as soon as possible. Personnel should never walk on screens when working on shakers. They should also avoid dropping tools on screens. After service each day, screens should be washed down, especially if drilling is occurring in sticky solids such as clay. Periodically, screens should be carefully inspected for tears and holes. If unresolved, these issues will lead to a major mud weight problem and may cause a heavy build-up of solids being returned to the active mud tank. Monitoring for extremely high mud weights will also help extend screen life. All personnel must be cognizant of the proper operation, installation, storage and maintenance of shaker screens. We always have screens on stock, #10 mesh and other sizes.

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