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Drilling fluid circulation process introduction

The drilling fluid circulates back from the wellhead, is sent to two (or three) vibrating screens through the overflow pipe, flows into the sand settling silo after screening, comes out of the sand settling silo through the mud tank into the degassing silo, and then passes through the vacuum degasser, desander, desilter and other solid control equipment processing, and flows into the medium-speed centrifugal silo through the degassing silo, sand silo and mud silo in turn.

The medium speed centrifuge liquid pump transfers the drilling fluid in the medium speed centrifugal bin to the medium speed centrifuge, and the medium speed centrifuge drains the treated drilling fluid into the high speed centrifugal bin. The high speed centrifuge liquid pump will transport the drilling fluid in the high speed centrifugal bin to the high speed centrifuge, and finally the high speed centrifuge will discharge the treated drilling fluid to the suction bin of the mud pump. At this point, the solid phase separation of the drilling fluid circulation process is completed.

After solid control system treatment, it can not only completely remove various large cuttings and impurities in the drilling fluid, but also remove fine solid particles, and efficiently reduce the relative density and viscosity of the drilling fluid, so as to meet the relevant requirements of the drilling process.

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