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Mar 29

Solids Removal Theory

Drilling fluid and equipment maintenance cost can decrease greatly when proper solids control practices are utilized. From a fluid control stand point it would be desirable in most cases to remove all drilled solids. Although this is possible, it would be cost prohibitive. The goal of a solids control system is to achieve the balance between mechanical solids separation and dilution that will result in drill solids being maintained at an acceptable level with a minimum of cost.

GN solids control system

GN solids control system

Benefits of Low Solids In Drilling Mud

  1. Increased drilling penetration
  2. Increase bit or back reamer life
  3. Reduce mud cost
  4. Reduce triplex mud pump, mud motor & surface equipment maintenance cost.
  5. Reduced clean up & haul off or disposal cost

    Shale shaker

    Shale shaker

These benefits are the result of planning prior to boring and are accomplished through the use of properly designed, sized and operated solids removal equipment. It is the responsibility of the boring crew to become knowledgeable in the proper use of the equipment; otherwise the potential benefits may be reduced or nullified.

Cutting dryer

Cutting dryer

Methods of Controlling Solids

  1. Mechanical treatment
  2. Chemical treatment
  3. Dilution of mud with water
  4. Discard mud & mix new mud.

All of the above with the exception of Mechanical treatment in most cases are cost prohibitive.

written by GN Desander Desilter \\ tags: , ,

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