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mud cleaner principle and installation

2012-11-27

In the drilling system, mud cleaner usually and desilter are laid it in the same position. Desilter or hydrocyclone are normally used for processing not aggravating drilling fluid, and processing including barite or red iron drilling fluid is need to use shale shaker. Hydrocyclone filtering solid phase size usually larger proportion of crystal, the rest of the smaller part and liquid return together in the mud. Be emphasized is that joined the barite, should use shale shaker.

 

Another with the shale shaker instead of cleaner method, usually in drilling process, use linear or translation elliptical shale shaker processing just spud in the borehole fluid, and less with shale shaker processing is slim-hole size (deep) or high density drilling fluid. Field can be installed on the shale shaker as many as 20 100 mm (4 in) of the hydrocyclone. In the treatment of non increase drilling fluid, desilter of base flow generally have been abandoned, and shale shaker processing from spill pipe drilling fluid, it is usually the biggest velocity stage. Along with the depth increasing, need to use increase drilling fluid, when drilling fluid velocity will be low, add barite, close the valve to prevent drilling fluid into the shale shaker screen. When mud flow has been transferred to the shale shaker screen, shale shaker screen becomes a mud cleaner.

with shale shaker processing is slim-hole size (deep) or high density drilling fluid. Field can be installed on the shale shaker as many as 20 100 mm (4 in) of the hydrocyclone. In the treatment of non increase drilling fluid, desilter of base flow generally have been abandoned, and shale shaker processing from spill pipe drilling fluid, it is usually the biggest velocity stage. Along with the depth increasing, need to use increase drilling fluid, when drilling fluid velocity will be low, add barite, close the valve to prevent drilling fluid into the shale shaker screen. When mud flow has been transferred to the shale shaker screen, shale shaker screen becomes a mud cleaner.

The cyclone from increase mud cleaner useless solid phase at the same time, in the bottom flow also have quite a number of barite. Hydrocyclone has been some of the detail screen, and clear large particles debris, and barite through screen returned to the circulation tank, this is the basic principle of mud cleaner.

 

For the present, no matter use what solids control equipment or combination, drilling fluid from wellhead returns to the ground must first after shale shaker screenprocessing. In the mud cleaner system before the emergence, aggravating drilling fluid through the shale shaker screenafter, centrifuge is used only in the mechanized purification equipment, centrifuge can remove very fine solid particles.

 

Nearly 10 years of the development of linear or translation elliptical shale shaker screen, has installed the super detail screen, the number has reached 100-325. In order to solve the super detail screen life problem, the development of the bond hole mesh and cementation laminated screen; In order to solve the super detail mesh throughput too small problems, development too much screen system (3-5 platform screen) and big screen surface and double screen. Domestic appearance field practice has proved, drilling fluid shale shaker use 150 mesh (cleaner general base flow screen) above screen, increase drilling fluid to use cleaner, no necessary, but not increase the drilling fluid used desilter is still necessary.