- Industry: Oil & gas
- Number of terms: 8814
- Number of blossaries: 0
- Company Profile:
Pertaining to an attraction for water by the surface of a material or a molecule. Clays and most other natural minerals used in drilling fluids, such as barite and hematite, are hydrophilic. They are spontaneously wet by water. To render them oleophilic, they can be treated with an oil-wetting chemical.
Industry:Oil & gas
Pertaining to an attraction for oil by a surface of a material or a molecule. This term is applied to the oil-wetting behavior of treatment chemicals for oil muds. Lipophilic oil-mud additives are required because most minerals drilled and additives such as barite are naturally hydrophilic and must be rendered lipophilic.
Industry:Oil & gas
Pertaining to an aqueous solution, such as a water-base drilling fluid, which has more hydroxyl ions (OH<sup>-</sup>) than hydrogen ions (H<sup>+</sup>) and pH greater than 7.
Industry:Oil & gas
Pertaining to a well that has more than one branch radiating from the main borehole. The term is also used to refer to the multilateral well itself.
Industry:Oil & gas
Pertaining to a type of metamorphic rock with shearing and granulation of minerals caused by high mechanical stress during faulting or dynamic metamorphism, typically during episodes of plate tectonic activity.
Industry:Oil & gas
Pertaining to a type of filter medium in which the particles are fused together to give a designed permeability. Sintered filters are used in the API high-pressure, high-temperature filtration test above about 375掳F (190掳C) and in laboratory tests of formation damage. Large-scale sintered filters are also used to clean up clear brines after use.
Industry:Oil & gas
Pertaining to a technique in which a packer flowmeter is partially inflated and dragged up the hole to give a continuous flow log. This obsolete technique was introduced in the 1960s because the packer flowmeter could make only stationary measurements.
Industry:Oil & gas
Pertaining to a strike-slip or left-lateral fault in which the block across the fault moves to the left; also called a sinistral strike-slip fault. If it moves to the right, the relative motion is described as dextral. Counterclockwise rotation or spiraling is also described as sinistral.
Industry:Oil & gas
Pertaining to a strike-slip fault or right-lateral fault in which the block across the fault moves to the right. If it moves left, the relative motion is described as sinistral. Clockwise rotation or spiraling is also described as dextral.
Industry:Oil & gas
Pertaining to a spectrum. The spectral content of a wavetrain or wavelet usually refers to its amplitude and phase as a function of frequency.
Industry:Oil & gas
