May 22

As a part of rig package, mud system is a separate but an essential part, the handling of drilling fluids can save huge cost of drilling. In the early oil industry open earthen pits were used as settling area to separate solids and mud thereby acting as a solids control equipment.

mud system for a rig

mud system for a rig

Now, with the stringent environmental regulations and high mud costs, the economics of an effective mud system come into consideration. Different solids control companies introduce zero-discharge systems, closed-loop systems, “quick move” technology, screening technology, disposal options etc. No reserve-mud pit is used in a truly closed mud system. Mud is continually processed primarily by mechanical means, such as screening, hydrocyclone and centrifuging to remove solids initially. A second stage to remove colloidal solids is by wastewater cleanup techniques.

Major components of a mud system, including:

Mud gas separator, flare ignition device

Shale shaker, mud cleaner(or desander, desilter), vacuum degasser, decanter centrifuge , centrifugal pump, mud hopper,  mud agitator, mud gun, mud tank and others, such as cutting dryer, screw auger, mud cooling unit,etc.

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Apr 01

GN solids control design and manufacture a complete solids control system/drilling mud system for oil & gas drilling, now we need a mud cooling system in our design, to make it more user-friendly. Usually we call the mud cooling system as mud cooler.

 

Application of mud cooling system

Scomi Oiltools Mud Cooling System

Scomi Oiltools Mud Cooling System

  • Oil, Gas, Geothermal Drilling – cooling drilling fluids
  • Oil and Gas Refineries – gas cooling/condensing
  • Petro-Chemical – steam condensing
  • Power Generation – fluid cooling
  • Steel – waste water cooling

In Oil, Gas, Geothermal Drilling ,the Mud Cooling system is used to reduce the temperature of drilling fluid returned to the surface.

 

In HT / HP wells the temperature of the drilling fluid must be strictly controlled to keep it’s properties within the specified parameters for that particular well. If the temperature of the drilling fluid is allowed to increase then a variety of problems can occur such as high equivalent circulating density (ECD), formation breakdown, lost circulation, packing off, stuck pipe and evaporation of the oil and water phase.

 

Why use mud cooler?

 

1 crew safety

2 Reduction of mud temperature in return lines especially important in Oil based systems to be maintained below flash point.

3 reduction of mud temperature reduces the risk of fire, blowouts, and helps provide safer drilling operation/ environment.

 

Benefits to well, drilling fluids, downhole equipment

 

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