annular


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annular

[′an·yə·lər]
(mining engineering)
The space between the casing and wall of a hole or between a drill pipe and casing.

annular

Said of a ring-shaped structure or object.
References in periodicals archive ?
Annular ring and wrap plating seem to be the primary drivers to calling out Class 2 when Class 3 was originally desired.
The view captured by the sensors of SDO was highly unusual despite it not capturing the annular eclipse.
The total Annular Phase began at 12:21 PST and end at 15:53 PST.
On physical exam, we noted 2 erythematous, scaly, annular, and slighdy raised plaques on the distal dorsal aspects of both forearms/wrists with a few erythematous papular lesions (FIGURE).
This gives assurance of a competent seal, as it can be directly measured with its associated annular pressure and temperature sensors.
According to the fundamentals of fluid mechanics [2] and related studies [1, 3-6], the inlet structure which determines the flow patterns in the annular gas channel plays an important role in the flow distribution in the packed beds.
Annular pancreas is a rare congenital morphological anomaly of the pancreatic ducts.
Annular types of fuel [3-7] have been introduced to improve the performance of nuclear power plant.
Compared with the single-stage pumps or turbines, the effect of annular seals on the vibration behavior of multi-stage pump rotor system needs additional consideration [1].
The Micro-Magnetic Crawler (MMC) is a remotely controlled robotic direct inspection tool capable of collecting critical visual, environmental and pipeline thickness data from within the annular space of cased pipe to allow utilities to develop risk models.
The 14 contributions, all written by Japanese academics, explain high-angle annular dark field STEM, annular bright field STEM imaging, electron energy-loss spectroscopy, density functional theory for calculating ELNES, secondary electron microscopy, scanning confocal electron microscopy, electron tomography, and holography.
This is an annular eclipse (Latin annulus, 'ring').