The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In a naturally-fractured formation, the maximum mudweight (the lost-circulation pressure gradient) allowed along the interval is distributed between the minimum and maximum in-situ stress gradients. For a vertical wellbore drilled in an extensional stress environment, the spectrum of lost-circulation pressure gradients is dominated by the values close to the maximum (vertical) in-situ stress gradient...
Cement losses into fractures may have detrimental effect on the height of the cement sheath built in the annulus after pumping a pre-defined volume of cement slurry. On the other hand, they might help ensure zonal isolation in CO2 storage sites by reducing permeability of the fracture network in the cap rock, at least in the near-well area. A simple, engineering model of a lost-circulation event during...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.