Oil and Gas Terms Beginning with “F” — Page 2

Fatty acids in petroleum drilling and oilfield chemistry are long-chain carboxylic acids (general formula CnH(2n+1)COOH for saturated versions, with chain lengths typically between C8 and C22) that serve as the chemical… Read more →

Fatty acid soap, in the petroleum drilling and completion industry, is a lubricant additive comprising the alkali metal salts of long-chain fatty acids (typically C12-C18 saturated and unsaturated fatty acids derived… Read more →

Fatty acid soap, in the petroleum drilling and completion industry, is a lubricant additive comprising the alkali metal salts of long-chain fatty acids (typically C12-C18 saturated and unsaturated fatty acids derived… Read more →

A fault is a planar fracture or zone of fractures in rock across which the two sides have moved relative to each other. The movement is driven by tectonic stress and can range from centimetres to hundreds of kilometres.… Read more →

What Is a Fault Trap? Fault trap (also called a fault-sealed trap or structural fault trap ) is a subsurface configuration in which one or more faults juxtapose a permeable reservoir rock against an impermeable… Read more →

What Is Fee Simple Interest? Fee simple interest (also called fee simple absolute or simply fee ownership ) is the most complete and unrestricted form of real property ownership recognized in common law, conferring on… Read more →

Feldspar is the most abundant mineral group in Earth's crust, comprising a family of aluminosilicate minerals with the general formula XAl(Al,Si)3O8 where X is potassium (K-feldspar: orthoclase, microcline, sanidine),… Read more →

Felsic describes igneous rocks and minerals that are rich in silicon, aluminum, and alkali metals (sodium and potassium), with a relatively low density and a light color in hand specimen. The word is a portmanteau of… Read more →

What Is a Fence Diagram? Fence diagram (also called a fence section or panel diagram) is a three-dimensional geological cross-section display consisting of multiple intersecting vertical cross-sections arranged in a… Read more →

Ferrous sulfide (FeS, also called iron monosulfide or iron(II) sulfide) is an inorganic compound formed by the reaction of iron with hydrogen sulfide (H2S), occurring in petroleum production systems as a black,… Read more →

Fiber lost circulation material (fiber LCM) is a category of lost circulation material consisting of long, slender, flexible particles of natural or synthetic fibrous substances — including cedar bark, shredded sugar… Read more →

Fiber lost-circulation material (fiber LCM) is a classification of drilling fluid additive comprising elongated, flexible fibrous particles — derived from natural sources such as cedar bark, sugar cane bagasse, mineral… Read more →

The surface area above a subsurface hydrocarbon accumulation. Read more →

A magnetic tape containing data recorded in the field, abbreviated FT. Read more →

A cement system used to provide zonal isolation across generally nonproductive zones located above the zones of interest. The fill cement is also called the lead cement. Read more →

What Is a Fill Sub? Fill sub describes a pipe-shaped housing that shields the firing head of a tubing-conveyed perforating gun from debris falling down the wellbore during running and depth correlation. Engineers… Read more →

To remove undesirable portions of data during seismicprocessing to increase the signal-to-noise ratio of seismic data. Filtering can eliminate certain frequencies, amplitudes or other information. Read more →

What Is Filter Cake in Drilling? A filter cake is a layer of solid particles deposited on the borehole wall when drilling fluid filtrate is forced into permeable formation by differential pressure between the wellbore… Read more →

Filter cake quality in drilling operations is an assessment of the physical properties of the filtercake deposited on the wellbore wall when drilling fluid loses liquid (filtrate) into a permeable formation under… Read more →

Filter cake thickness is the physical depth of the solid deposit that forms on the face of a permeable formation (or on the surface of a filter paper in laboratory testing) as drilling fluid filtrate is forced through… Read more →

(noun) The plural of filter medium. The porous materials — including woven screens, sintered metals, gravel packs, sand, diatomaceous earth, and synthetic membranes — through which a fluid is passed to remove suspended… Read more →

A filter medium (plural: filter media) is the porous material through which a fluid is forced under pressure or gravity, retaining particles larger than the medium's pore size while allowing the liquid phase (the… Read more →

A filter press in oil and gas operations refers to two distinct but related instruments and pieces of equipment: in drilling fluid testing, the filter press (also called the filtration press or API filter press) is the… Read more →

Filter cake quality in drilling operations is an assessment of the physical properties of the filtercake deposited on the wellbore wall when drilling fluid loses liquid (filtrate) into a permeable formation under… Read more →

Filter cake thickness is the physical depth of the solid deposit that forms on the face of a permeable formation (or on the surface of a filter paper in laboratory testing) as drilling fluid filtrate is forced through… Read more →

A completion or workover fluid that has been treated to remove debris and fine particles that may cause near-wellbore damage if allowed to enter the reservoirformation. Read more →

Filters in petroleum engineering encompass a broad class of mechanical, cartridge, and membrane separation devices used throughout the oil and gas industry to remove solid particles, contaminants, or entrained liquids… Read more →

The liquid that passes through a filter cake from a slurry held against the filter medium, driven by differential pressure. Dynamic or static filtration can produce a filtrate. Read more →

Filtrate slump is a transient, elevated filtrate invasion event occurring when the low-permeability filter cake deposited on the formation face during static or dynamic filtration is mechanically disrupted by pipe… Read more →

What Is a Filtrate Tracer? A filtrate tracer is a chemical or isotopic marker dissolved uniformly in the liquid phase of a drilling, coring, or completion fluid that migrates with the filtrate into permeable formations,… Read more →