AP200 desilters are capable of processing up to 240 stere per minute and can get do to cut point of approximately 35 microns. This equipment is designed to remove the sand and silt sized particles before they have a chance to break down even smaller. Hydrocyclone working The is designed to save barite and remove low gravity solids larger than barite from weighted mud system. The Sand/Silt Separator -cyclones will separate the low solid liquid slurry from the barite and larger than medium silt range particles. The barite and larger silt size particles will be directed on the screen surface to save barite and drilling fluid while the large silt size particles will go off the end of the screen.

On the unweighted mud systems the AP200 desilter paired with a hunter shaker will reduce the costs by reduced jetting, less chemical replacement and less replacement of water and/or oil. With the use of 325 it is possible to remove solids to approximately 25-35 micron silt size particle. Hydrocylone/Shaker combination has several design characteristics that justify its ability to remove sand and silt sized solids from the drilling fluid. The feed manifold is designed to ensure balanced feed pressure into the hydrocyclones. System balance is achieved by opening or closing individual control valves on each hydro cyclone, by lowering or raising the siphon tubes on each overflow tube, and/or increasing or decreasing the apex bushing size.

[Composition of the Manual ] The VoiceFinder AP2620 installation guide serves to assist the installation of the AP2620 Gateway. This manual is composed of 4 chapters as the following. Thos experienced with Gateways may refer directly to the chapters as needed.

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Any of these adjustments can alter the GPM rate and handle most volume requirements. These adjustments can make particle interference, mud viscosity, and rejection volume less critical and enable the system to work more efficiently. The Triflo 8-4 Mud Cleaner can remove solids that are often found to be the cause of collar sticking and wear on mud pump expendables. AP200 Desilter Operation • The feed slurry of solids and liquid is fed through the inlet at a high velocity obtained by steady pressure of twenty-five (0.25-0.4)Mpa. The high velocity transmitted to the feed section creates a spinning velocity and resulting centrifugal forces.

The vortex finder causes the stream to spiral downward towards the underflow solids discharge. Centrifugal force and inertia causes solids to settle outward toward the hydro cyclone wall, in a downward spiraling stream. • The solids separate according to size and weight of the particles. In the density range of solid particles in drilling fluids, size is of far more influence than the variations in density so that basically the biggest particles settle first and fastest. • The cone section narrows, inner layers of the downward spinning liquid turn back toward the overflow because of the increasing centrifugal forces near the center. • In Aipu’s hydrocyclone, as the last of the liquid moves to the center and back upward toward the overflow, the downward spiraling solids continue out the apex, not being able to turn back because of their greater inertia and high downward velocity.

Therefore, the actual solids removal at the underflow is by inertia, not by settling. The underflow rate and density varies with the volume and size of solids being separated to the underflow. • The underflow from the fluids, even under extreme conditions, will be approximately 40 GPM and ordinarily under 30 GPM. This makes it possible to use fine mesh screen (150-200 mesh) to clean all of the mud returning from the bore hole. 200 mesh screens have openings of 74 microns and the 150 mesh screens have openings of 104 microns. Theoretically, particles smaller than these opening should remain with the mud and larger particles and would be carried off the end of the.