Oil and Gas Terms Beginning with "H"
74 terms
HLB number
Definition coming soon.
HP starch
Definition coming soon.
HPHT
Definition coming soon.
HPHT filtration test
Definition coming soon.
HPHT viscometer
Definition coming soon.
HSE
Definition coming soon.
HUD
Definition coming soon.
HWDP
Definition coming soon.
Horner slope
Definition coming soon.
Hough transform
Definition coming soon.
Humble formula
Definition coming soon.
high-pressure, high-temperature
Definition coming soon.
high-pressure, high-temperature filtration test
Definition coming soon.
high-pressure, high-temperature viscometer
Definition coming soon.
high-shot density gun
Definition coming soon.
high-specific-gravity solids
Solids added intentionally to a drilling fluid, such as barite or hematite, with a specific gravity significantly higher than typical formation solids; these weighting materials increase mud density to control formation pressures, distinguished from low-gravity drill solids.
highstand systems tract
Definition coming soon.
history matching
Definition coming soon.
hodogram
Definition coming soon.
holdup
Definition coming soon.
holdup depth
Definition coming soon.
holdup image
Definition coming soon.
holdup log
Definition coming soon.
holdup map
Definition coming soon.
holdup meter
Definition coming soon.
hole cleaning
The process of removing drill cuttings, cavings, and other solids from the wellbore during drilling by circulating drilling fluid with adequate velocity and rheological properties; poor hole cleaning leads to packoffs, stuck pipe, and drilling problems.
hollow carrier gun
A perforating gun design in which the shaped charges are housed within a sealed, pressure-isolated carrier tube, protecting the wellbore casing from explosive debris and allowing spent gun components to be retrieved to surface after firing.
homogeneity
Definition coming soon.
homogeneous
Having uniform composition, structure, or properties throughout; in reservoir engineering, a homogeneous reservoir has consistent porosity, permeability, and fluid properties throughout its extent, simplifying flow modeling and recovery predictions.
homogeneous formation
Definition coming soon.
hook
Definition coming soon.
hook load
Definition coming soon.
hookwall packer
Definition coming soon.
hopper
Definition coming soon.
horizon
Definition coming soon.
horizon slice
Definition coming soon.
horizontal drilling
Definition coming soon.
horizontal resistivity
Definition coming soon.
horizontal separator
Definition coming soon.
horizontal severance
Definition coming soon.
horizontal tree
Definition coming soon.
horst
Definition coming soon.
hostile environment
Definition coming soon.
hot lime
Calcium hydroxide (Ca(OH)₂) used in drilling fluids and cementing to raise pH, provide alkalinity, and treat CO₂ or H₂S contamination; hot lime reacts with soluble bicarbonates and carbonates to precipitate them from solution and protect the mud system.
hot oiler
Definition coming soon.
hot oiling
Definition coming soon.
hot tapping
Definition coming soon.
hot waterflooding
Definition coming soon.
housing
Definition coming soon.
huff and puff
Definition coming soon.
humic acid
Definition coming soon.
humidity
Definition coming soon.
humidity meter
Definition coming soon.
humping
Definition coming soon.
hybrid mode
In seismic acquisition or processing, a mode that combines or blends two different wave types or acquisition geometries; hybrid modes may refer to combined P-wave and S-wave acquisition or mixed marine and land seismic survey techniques.
hybrid scale
Definition coming soon.
hydrate
Definition coming soon.
hydration
Definition coming soon.
hydraulic bypass
Definition coming soon.
hydraulic cement
Definition coming soon.
hydraulic centralizer
Definition coming soon.
hydraulic disconnect
A downhole tool that allows the drill string or completion string to be disconnected hydraulically without rotation, used when mechanical release is not possible due to stuck pipe or to release tools in specific completion procedures.
hydraulic fracture monitoring
Definition coming soon.
hydraulic fracturing
Definition coming soon.
hydraulic head
Definition coming soon.
hydraulic horsepower
Definition coming soon.
hydraulic packer
Definition coming soon.
hydraulic power pack
Definition coming soon.
hydraulic pumping
Definition coming soon.
hydraulic release tool
Definition coming soon.
hydraulic set
A packer or downhole tool that is set in the wellbore by application of hydraulic pressure through the work string or tubing, expanding sealing elements against the casing wall without requiring rotation or mechanical manipulation.
hydraulic-set
Definition coming soon.
hydrocarbon
Definition coming soon.
hydrocarbon indicator
Definition coming soon.