Removing Mud Solids

A field method for measuring solids sizes on the job. It is simple and easy to use and should improve the efficiency of solids control. There will be some sacrifice in accuracy; however, only the relative weight percentage distribution of the particles is needed to allow constructive steps to remove these particles.

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Field Applications of PHPA Muds

The application of polymer muds has been hindered by two criticisms. First, they are difficult to run because mud-engineering maintenance guidelines are very different from conventional bentonite mud systems. Second, they are less solids-tolerant than dispersed or lime-based systems. Consequently, these muds often have proved uneconomical for drilling geologically young and highly dispersive shales or for drilling with high mud weights (greater than 14 lbm/gal [greater than 1700 kg/m3]).

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HYDROCYCLONE USE IN DRILLING

Hydrocyclones are very effective classification devices which, as a result of centrifugal forces in the spinning fluid, cause solids to be separated at the underflow. Hydrocyclone is core part of mud cleaner, desander and desilter.

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Evaluate The Efficiency Of Solids Control Equipment

The volume and type of solids in a drilling mud system can adversely affect mud properties, reduce penetration rates, cause damage to drilling equipment, and increase total drilling costs. Efficiency controlling the solids content of the mud system is an important phase of an efficient and cost-effective drilling program. The three basic methods of removing solids are dilution and/or displacement of whole mud, settling and mechanical solids-control equipment.

Size capacity and operating of solids control equipment
Fig 1. Size capacity and operating of solids control equipment

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