Abstract: A system and method for providing convenient manufacture and delivery of customized greeting cards uses the convenience and ready access of the Internet or other widely available network. The website allows a user to enter information used to assist in the selection of an appropriate expression and image. An advertisement, sales promotion or product sale can be associated with the greeting card and used to subsidize the cost of the greeting card. In one embodiment an advertisement is associated with the greeting card and printed as part of the greeting card. The printed greeting card and advertisement are delivered by mail or other delivery service. The website is also designed to allow users to seek assistance from others with respect to expressions and images.

Abstract: A horizontal tree having a vertical bore and a horizontal production passage is landed in a wellhead housing. A tubing hanger lands in the bore and has a vertical passage and a horizontal passage that aligns with that of the tree. A retrievable first plug seals the vertical passage. A tree cap seals in the tree bore above the tubing hanger and has an axial passage. A retrievable second plug having a valve seals the tree cap passage. A vent port extends laterally through the tree cap between its axial passage and outer surface. A pair of seals on the second plug seal above and below the vent port. A tubing annulus passage communicates with the vent port and an annulus passage. The second plug serves as a second pressure barrier to the first plug and blocks the vent port when the valve is closed. The annulus passage is sealed from communication with a void between the plugs. The valve may be opened to release pressure in the void by applying pressure to an upper end of the check valve.