Abstract: A door sealing system for a container having a container door is provided. The container can be part of a vacuum system, for example as mounted on a trailer. The sealing system is hydraulically actuated and includes a mechanical lock. A corresponding vacuum system and method of operation are also provided.

Abstract: A door sealing system for a container having a container door is provided. The container can be part of a vacuum system, for example as mounted on a trailer. The sealing system is hydraulically actuated and includes a mechanical lock. A corresponding vacuum system and method of operation are also provided.

Abstract: A door sealing system for a container having a container door is provided. The container can be part of a vacuum system, for example as mounted on a trailer. The sealing system is hydraulically actuated and includes a mechanical lock. A corresponding vacuum system and method of operation are also provided.

Abstract: A door sealing system for a container having a container door is provided. The container can be part of a vacuum system, for example as mounted on a trailer. The sealing system is hydraulically actuated and includes a mechanical lock. A corresponding vacuum system and method of operation are also provided.

Abstract: A drilling rig for use in both coiled tubing injection and rigid threaded pipe operations, and consisting of a number of separably transportable modules which are assembled on site for carrying out the operations. Included in the modules are a substructure component, a mast component and an injector component. In setting up for operation, the mast component is combined on site with the substructure component which supports the assembled rig over the borehole. The mast component in location provides a loading area to support the injector component in a position for ready loading of an injector included in the injector component into the mast when required for a coiled tubing operation.

Abstract: An articulated mast for use in supporting a coiled tubing injector on a deck of a transport trailer and capable of accomplishing storage of the mast and the injector in a compact manner on the deck for transport on the one hand in conjunction with other equipment in drilling operations, and yet capable of ready deployment of the injector to an operative position above a well head on the other hand. The mast includes boom sections pivotally joined relative to each other for movement between a position in which the sections are folded one on top of the other on the deck to an extended position for holding the tube injector above the well head rear of the transport deck.