05.07.2009

Gas initially produced from an underground reservoir

Fluid (such as gas, oil, or water) that exists in a subsurface formation

Formation damage is a problem that can occur during the various phases of oil and gas recovery from subsurface reservoirs including production, drilling, hydraulic fracturing and workover operations. Formation damage assessment, control and remediation are among the most important issues to be resolved for efficient exploitation of hydrocarbons. Formation damage indicators include permeability impairment, skin damage and decrease well performance

Formation damage is a problem that can occur during the various phases of oil and gas recovery from subsurface reservoirs including production, drilling, hydraulic fracturing and workover operations. Formation damage assessment, control and remediation are among the most important issues to be resolved for efficient exploitation of hydrocarbons. Formation damage indicators include permeability impairment, skin damage and decrease well performance

A body of rock that is sufficiently distinctive and continuous that it can be mapped. A general term applied in the well-logging industry to the external environment of the drilled well bore without stratigraphic connotation