Annulus (well) - Wikipedia
The 'A' annulus is the void between the production tubing and the smallest casing string. The 'A' annulus can serve a number of crucial tasks, including gas lift and well kills. A normal well will also have a 'B' and frequently a 'C' annulus, between the different casing strings.
Borehole Annulus - an overview | ScienceDirect Topics
H. Yang, ... Z. Fang, inApplied Energy, 2010. In the vertical GCHP systems, the GHE configurations may include one, tens, or even hundreds of boreholes, each containing one or double U-tubes through which heat exchange fluid is circulated.
The Impact of Annulus Width on Well Performance
Jun 22, 2020 · The annulus of a well is the area between the exterior of the casing or screen, and the interior of the borehole (Figure 1).
annulus | Energy Glossary
annulus. 1. n. [Drilling] The space between two concentric objects, such as between the wellbore and casing or between casing and tubing, where fluid can flow. Pipe may consist of drill collars, drillpipe, casing, or tubing. Alternate Form: annuli.
Do the Math - Water Well Journal
Apr 20, 2022 · The word “annulus” refers to the area between two concentric circles, or in the case of a water well, the volume between two cylinders that are defined by the casing or tubing string in a boring, and the borehole wall.
Annulus | Oil and Gas Drilling Glossary | IADCLexicon.org
The space between the outer wall of one string of pipe (casing or tubing) suspended in a wellbore and the inner wall of the next larger casing or the borehole wall; i.e., the space between concentric pipe strings.
Understanding The Significance Of Annulus In Well Drilling
Jan 19, 2024 · An annulus in well drilling refers to the space or gap between two concentric pipes or casings that are used in drilling oil or gas wells. This annular space plays a crucial role in the drilling process, providing a barrier between the wellbore and the surrounding formations.
Well Integrity: A Holistic Approach To Annulus Pressure Management …
Sep 29, 2015 · Annulus Pressure Management refers to an engineered approach ensuring that casing annulus pressures do not challenge the well’s integrity during the life of the well. The aim is to maintain the casing pressure within the well’s mechanical design limits at all times by controlling the ‘A’ annulus pressure.
Annulus (oil well) - OilfieldWiki
The annulus (area between tubing and casing in diagram) of an oil well refers to any void between any piping, tubing or casing and the piping, tubing, or casing immediately surrounding it. It is named after the corresponding geometric concept.
Wellbore Monitoring and Tubing-Casing Annulus Protection
Sep 18, 2021 · Introduction. The performance monitoring of underground gas storage facilities mainly includes monitoring the injection and production well parameters, monitoring/detection of the sealing properties of the injection and production wells, and performance monitoring.