Sentence examples for casing stability from inspiring English sources
The methodology may be applied to investigate casing stability and help optimize well completions in areas that experience subsidence from longwall mining of coal.
Lack of wellbore stability has led to many instances of casing failure and significant economic losses as well as safety and environmental issues.
A specific indicator is proposed to measure the instability of each component in a compressor, which can be used to determine the best region for stability extension technologies, such as a holed casing treatment, in different compressor applications.
The mud weight should be appropriately selected based on the pore pressure gradient, wellbore stability, and fracture gradient prior to setting a casing.
To ensure the stability of a borehole in the extraction process, the casing is installed after the borehole is created.
The stability of the follower gear is derived from the casing of the microrobot and a cover which holds the micromotor and bevel gear in position.
Steam injection, for instance, raises the cement sheath-steel casing interface temperature to ∼300 °C which can be deleterious to the mechanical stability and zonal isolation provided by the cement sheath as a result of cracking of the cement.
To ensure the stability and reliability of the boreholes, a variety of casings were used to protect them.
Drilling with long open-hole sections can lead to rock temperature changes as large as 30 40 °C at the casing shoe through mud heating at depth and upward mud circulation, dramatically impacting wellbore stability.
It shows that such end bending moment exceeded the yield moment of the casing when the specimens failed by global buckling, indicating a significant negative effect on global stability of BRBs.
The borehole sealing quality decides whether the air will escape through the borehole from the casing and fracture zones, which will reduce the gas concentration of extraction, and also influence the stability of the borehole.
