The desander Diaries
The desander Diaries
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desander 1. n. [Drilling] A hydrocyclone unit that eliminates huge drill solids from The full mud process. The desander should be Situated downstream in the shale shakers and degassers, but before the desilters or mud cleaners. A quantity of mud is pumped in the extensive upper section of the hydrocylone at an angle about tangent to its circumference. As the mud flows all around and slowly down The within of the cone condition, solids are divided with the liquid by centrifugal forces.
Yes, Desanders can be personalized to satisfy the specific requirements of different apps. They may be intended with various movement capacities, resources of building, and Management programs to go well with the needs of a certain job.
The centrifugal pump sucks out of the tank. The underflow with the top rated on the desanders is discharged into your tank downstream. These two tanks should be related by an equalizing valve at The underside of your tanks.
Demineralization and sand removal hydro-cyclones are uncomplicated mechanical units without any transferring parts, Nonetheless they aid the solids sedimentation system. Drilling mud laden with solids is drawn into the human body of the hydro-cyclone and also the iatrogenic force of the movement separates the weighty solids in the lighter solids.
Starting a centrifuge pump to run a number of parts of equipment will not be a good idea, as doing this demands compromises in performance and options for incorrect Procedure.
Drilling fluid desander and desilter is usually a sort of mud cleaner. Desanders and desilters are solids control equipment that is certainly set up along with a mud tank.
Geometry, the design and positioning of varied connections, and their relative Proportions are critical for productive cyclone Procedure and determine the Reduce-off stage (among the solids ejected from your apex and people remaining while in the liquid discharge).
The centrifugal force forms an air column from the middle to your periphery. The larger sized and heavier particles from the liquid are thrown toward the cyclone wall underneath the action of centrifugal force, and vortex alterations and falls beneath the action of cyclone and gravity, and is discharged from The underside move hole. A little Section of the finer particles flows out from the underflow hole, and A lot of them alter course when approaching the underflow gap, and they are discharged throughout the overflow pipe within an upward spiral flow to accomplish strong-liquid separation.
Desanders and desilters are used to eliminate solids from drilling fluid that a shale shaker is incapable of taking away.
The Digital control procedure can recognize automatic control of the sand remover and will alter and Management it based on the liquid move charge, sand particle dimensions, machines managing time along with other parameters to attain better sand removal impact.
Mud cleaners are extremely inefficient and the necessity for their use continues to be replaced by the appearance of linear movement desander shakers (Verify also: Shale Shaker Design & Performance) coupled with the usage of centrifuges.
去除井口或附近的固体（例如压裂砂、支撑剂），可以提供多种优势，包括：
Desanders are installed instantly downstream from the shaker and degasser. Suction is taken from the fast upstream tank, commonly the degasser discharge tank.
每套系统均采用定制工程设计，以确保适合您的应用，包括提供宽广的运行范围以应对不断变化的状况，这在多相井内液气流中十分常见。井口除砂器具备多种尺寸（包括一些最大型商用尺寸），一台旋风分离器即可适应多种不同井口液气流。此外，旋风分离器经过特别设计，能够分离较大和不规则形状颗粒，以及更常见的圆形小颗粒，以避免发生阻塞。
The part of desanders is to lessen loading downstream on desilters. Setting up a desander in advance of your desilter relieves a significant level of solids loading within the desilter and enhances desilter effectiveness. Substantial premiums of penetration, specifically in the unconsolidated floor gap, wherever the most important-diameter bits are used, results in making larger sized concentrations of drilled solids.