- Settore: Oil & gas
- Number of terms: 8814
- Number of blossaries: 0
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A measure of the energy per unit of time that is being expended across the bit nozzles. It is commonly calculated with the equation HHP=P*Q/1714, where P stands for pressure in pounds per square in. , Q stands for flow rate in gallons per minute, and 1714 is a conversion factor necessary to yield HHP in terms of horsepower. Bit manufacturers often recommend that fluid hydraulics energy across the bit nozzles be in a particular HHP range, for example 2. 0 to 7. 0 HHP, to ensure adequate bit tooth and bottom-of-hole cleaning (the minimum HHP) and to avoid premature erosion of the bit itself (the maximum HHP).
Industry:Oil & gas
A material used in a liquid form to modify the properties of cement for use in oil- or gas-well cementing.
Industry:Oil & gas
A material added to a drilling fluid to perform one or more specific functions, such as a weighting agent, viscosifier or lubricant.
Industry:Oil & gas
A maritime vessel modified to include a drilling rig and special station-keeping equipment. The vessel is typically capable of operating in deep water. A drillship must stay relatively stationary on location in the water for extended periods of time. This positioning may be accomplished with multiple anchors, dynamic propulsion (thrusters) or a combination of these. Drillships typically carry larger payloads than semisubmersible drilling vessels, but their motion characteristics are usually inferior.
Industry:Oil & gas
A luster, brightness or radiance. A sheen appears as a spectrum of colors and is commonly caused by a thin film on a surface that diffracts light. A film of diesel oil on water has a multicolored luster and is an indicator of an oil spill or oil slick.
Industry:Oil & gas
A low-solids mud in which there is no clay deflocculant chemical.
Industry:Oil & gas
A low-molecular-weight polymer typically with two to five monomer units.
Industry:Oil & gas
A long, rectangular platform about 3 ft (0. 9 m) high, usually made of steel and located perpendicular to the vee-door at the bottom of the slide. This platform is used as a staging area for rig and drillstring tools, components that are about to be picked up and run, or components that have been run and are being laid down. A catwalk is also the functionally similar staging area, especially on offshore drilling rigs, that may not be a separate or raised structure.
Industry:Oil & gas
