Low-yield clay:

Terms Related to Low-yield clay

• High-yield drilling clay

  A classification of commercial drilling-clay preparations having a yield of 35 to 40 barrels per ton and intermediate between bentonite and low-yield clays. Usually prepared ...

• Yield

  A term used to define the quality of a clay by describing the number of barrels of a given centipoise slurry that can be made ...

• Base exchange

  The replacement of cations associated with the clay surface by those of another species, e.g., the conversion of sodium clay to calcium clay.

• Peptized clay

  A clay to which an agent has been added to increase its initial yield

• Montmorillonite

  A clay mineral often used as an additive to drilling mud. It is a hydrous aluminum silicate capable of reacting with such substances of magnesium ...

• Clay swelling

  A type of damage in which formation permeability is reduced because of the alteration of clay equilibrium. Clay swelling occurs when water-base filtrates from drilling, ...

• Clay extender

  Any of several substances--usually organic compounds of high molecular weight--that, when added in low concentrations to a bentonite or to certain other clay slurries, will ...