Abstract: A method of obtaining an image tile from a server by a client includes a client submitting a request to a server for extracting an image tile from a compressed image file. The server controls access to the compressed image file, the compressed image file contains multiple different resolution image layers and the image tile is to be extracted from one of these image layers. The request includes the identity of the image layer and the coordinates of the image tile in the image layer. The server extracts the requested image tile directly from the image layer in the compressed image file using the request and transfers image tile to the client at the decompressed image resolution and quality such that the image tile can be displayed on a display of the client.

Abstract: A method of obtaining an image tile from a server by a client includes a client submitting a request to a server for extracting an image tile from a compressed image file. The server controls access to the compressed image file, the compressed image file contains multiple different resolution image layers and the image tile is to be extracted from one of these image layers. The request includes the identity of the image layer and the coordinates of the image tile in the image layer. The server extracts the requested image tile directly from the image layer in the compressed image file using the request and transfers image tile to the client at the decompressed image resolution and quality such that the image tile can be displayed on a display of the client.

Abstract: An apparatus for treating a wellbore comprises a downhole component (22) and a body (16) mounted on the downhole component (22) to protect the downhole component. The body (16) comprises a treating agent and at least a portion of the body (16) is configured to break up to expose the downhole component (22) and permit release of the treating agent at a downhole location within a wellbore.