Abstract: The invention provides an improved method for extracting heavy oil or bitumen contained in a reservoir. The invention involves directing the formation of a solvent fluid chamber through the combination of directed solvent fluid injection and production at combinations of horizontal and/or vertical injection wells so as to increase the recovery of heavy oil or bitumen contained in a reservoir. The wells are preferably provided with flow control devices to achieve uniform production.

Abstract: The present invention relates to a package for mailing CDs, DVDs or other optical computer readable mediums made of materials that include polycarbonate. The package includes a panel, preferably made of paperboard material, against which a surface of the optical computer readable medium can be located to protect against damage during mailing. The panel has a coating applied thereto that has a hardness that is less than the hardness of the polycarbonate material from which the optical computer medium is made in order to prevent the panel from scratching the surface of the optical computer readable medium. Although the coating may be in any form, it is preferred that the coating include an acrylic polymeric material.

Abstract: The present invention relates to a envelope or blank for the making the envelope, wherein the envelope is specifically adapted for mailing computer readable medium such as CDs or DVDs. The envelope and blank are particular suited for sorting using high speed sorting machinery and are characterised by a central storage region for accommodating the medium that is stiffened relative to sections of the envelope adjacent to the storage region.

Abstract: The invention provides an improved method for producing heavy oil or bitumen in a reservoir. The invention involves directing the formation of a solvent fluid chamber through the combination of directed solvent fluid injection and production at combinations of horizontal and/or vertical injection wells so as to increase the recovery of heavy oil or bitumen in a reservoir.

Abstract: The process is for ageing heat treatment of an age-hardenable aluminium alloy which has alloying elements in solid solution. The process includes holding the alloy at an elevated ageing temperature which is appropriate for ageing the alloy to promote precipitation of at least one solute element, herein termed “primary precipitation” for a period of time which is short relative to a T6 temper. Resultant underaged alloy then is cooled from the ageing temperature to a lower temperature and at a sufficiently rapid rate to substantially arrest the primary precipitation. The cooled alloy then is exposed to an ageing temperature, lower than the elevated ageing temperature for primary precipitation, so as to develop adequate mechanical properties as a function of time, by further solute element precipitation, herein termed “secondary precipitation”.