drilling fluids and materials

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. A predominately oil phase drilling mud with trace water ( 10%) as an additive or a contaminant. Note: special cleanup and dispersants are needed before displacing with brine or treating with acids.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. A mud in which the external, liquid phase is oil.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. Usually oil base or an oil external mud which will not conduct electrical charge. Many logs cannot be run in these muds.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. A fluid whose shear force and response is directly proportional to shear rate.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. Mud with a low suspended solids quantity. It may be formulated with a brine with high density created by dissolved salt.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. A high permeability zone that takes fluids from the wellbore and the conventional filter cake building materials have no effect on fluid losses.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. Same as lost circulation control materials.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. During circulation, when less fluid returns to the surface than was injected into the well. Severe lost circulation is the loss of all returns.

Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content.