Mud testing•Necessary for a successful drilling operation•The tests are also used as a tool to aid in diagnosing mud related problems.•The mud properties are routinely checked at the well site, and recorded on a daily drilling mud report
Mud Density
•Drilling mud density is required to calculate the hydrostatic pressure that is being exerted by a column of drilling mud at any given depth. Density is also used to provide an indication of the solids content of a drilling mud.
•When the test is performed using a standard mud balance, care must be taken to ensure the cup is full and free of entrapped air.
Test procedure:
•Remove the lid from the cup and completely fill the cup with the mud to be tested. It may be necessary to tap or vibrate the cup lightly to bring the entrapped air to the surface for high viscosity muds.
•Replace the lid and seat it firmly on the cup in a rotating manner. Allow the excess drilling mud to be expelled through the centrally located hole in the lid.
•Wash the mud from the outside of the cup, and dry the mud balance.
.•Place the balance arm on the base with the knife edge resting on the fulcrum.•Adjust the rider until the bubble oscillates equally to the left and right of the centering mark above the level vial.•Read the mud density as shown by the indicator on the rider.•Report the result to the nearest scale division in kg/m3or lb/ga
Mud Density
•Drilling mud density is required to calculate the hydrostatic pressure that is being exerted by a column of drilling mud at any given depth. Density is also used to provide an indication of the solids content of a drilling mud.
•When the test is performed using a standard mud balance, care must be taken to ensure the cup is full and free of entrapped air.
Test procedure:
•Remove the lid from the cup and completely fill the cup with the mud to be tested. It may be necessary to tap or vibrate the cup lightly to bring the entrapped air to the surface for high viscosity muds.
•Replace the lid and seat it firmly on the cup in a rotating manner. Allow the excess drilling mud to be expelled through the centrally located hole in the lid.
•Wash the mud from the outside of the cup, and dry the mud balance.
.•Place the balance arm on the base with the knife edge resting on the fulcrum.•Adjust the rider until the bubble oscillates equally to the left and right of the centering mark above the level vial.•Read the mud density as shown by the indicator on the rider.•Report the result to the nearest scale division in kg/m3or lb/ga
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