Filter loss:

Terms Related to Filter loss

• Differential sticking

  A condition in which the drill stem becomes stuck against the wall of the wellbore because part of the drill stem (usually the drill collars) ...

• Filter cake

  1. Compacted solid or semisolid material remaining on a filter after pressure filtration of mud with a standard filter press. Thickness of the cake is ...

• Surge loss

  The flux of fluids and solids that occurs in the initial stages of any filtration before pore openings are bridged and a filter cake is ...

• Filter cake thickness

  A measurement of the solids deposited on filter paper in thirty-seconds of an inch during standard 30-min api filter test. See cake thickness. In certain ...

• Filtrate

  1. A fluid that has been passed through a filter. 2. The liquid portion of drilling mud that is forced into porous and permeable formations ...

• Filter paper

  Porous unsized paper for filtering liquids. Api filtration test specifies one thickness of 9-cm filter paper whatman no. 50, s & s no. 576, or ...

• Filtration qualities

  The filtration characteristics of a drilling mud. In general, these qualities are inverse to the thickness of the filter cake deposited on the face of ...