Sentence examples for maintain wellbore stability from inspiring English sources
The mud weight required to prevent breakout generation and maintain wellbore stability during drilling was determined.
It is very important to maintain wellbore stability during shale formation drilling (Al-Bazali 2011; Bybee 2009; Díaz-Pérez et al. 2007; Hu et al. 2016; Riley et al. 2012).
The stability models has been applied to a well located in Iran oil field and leads to easily computed expression for the critical mud pressure required to maintain wellbore stability.
A new drilling fluid system centering on the two biomimetic agents was designed and prepared in order to enhance the strength of shale rocks near wellbore and maintain wellbore stability.
This critical output from this study raises the need to consider the possibility of changing the designed well trajectory over the life of the reservoir to maintain wellbore stability and optimize the drilling and production operations.
Therefore, selecting an appropriate drilling fluid density or borehole pressure is the most effective way to both avoid drilling fluid loss and maintain wellbore stability in these regions, which means that the collapse pressure must be calculated accurately enough.
Therefore, the key to maintaining wellbore stability is to prevent pore pressure transmission.
In recent years, nanoparticles are found to effectively plug shale pore throats to prevent liquid penetration into the formation, thus maintaining wellbore stability and protecting the reservoir (Roshan and Aghighi 2012; Rafieepour et al. 2013; Wen et al. 2014).
Cement sheath is very important to maintain wellbore integrity in high pressure high temperature (HPHT) wells and steam injection wells.
On the contrary, if one substitutes the maximum and minimum principle stress into Eq. 15 when the collapse occurs, then the critical drilling mud density which maintains the wellbore stability, known as collapse pressure, can be obtained.
The determination of in situ stresses are important during the drilling operations to maintain the hole integrity and wellbore stability to avoid drilling problems.
