Abstract: An apparatus, system, and method are disclosed for in-situ extraction of hydrocarbons from a hydrocarbon bearing formation. The system includes a well drilled through a hydrocarbon bearing formation, and a completion unit that places an injection tube near a fluid injection of a target zone and a production tube near a fluid production point of the target zone. The injection tube comprising a tube with an inner diameter between about 1 inch and about 2 inches. The system includes a heat source, and a thermal conduit fluid that delivers heat from the heat source to the target zone. A mixer mixes an oxygen mixture and an injection unit injects the oxygen mixture into the depleted target zone to combust a coke remainder within the target zone. The system further includes a recycling unit configured to circulate a cool gas through the heated target zone to absorb the thermal energy disposed in the heated target zone.

Abstract: A book wherein one or more of the covers or pages or binding is provided with a track, and a toy figure is movably coupled to the track. For this purpose, the cover(s) or page(s) which attach the toy figure have sufficient structural integrity to support the toy figure and the movement of the toy figure along the track. Preferably, the track is provided along the edge or periphery of a cover or page so that the toy figure may be moved around the periphery of the book even when the book is closed. The toy figure preferably takes the shape of an animal or other creature which is the subject of a story in the book. In this way, a young reader can easily correlate the movable toy figure with the story. The book is particularly useful in encouraging children to read.

Abstract: A book wherein one or more of the covers or pages or binding is provided with a track, and a toy figure is movably coupled to the track. For this purpose, the cover(s) or page(s) which attach the toy figure have sufficient structural integrity to support the toy figure and the movement of the toy figure along the track. Preferably, the track is provided along the edge or periphery of a cover or page so that the toy figure may be moved around the periphery of the book even when the book is closed. The toy figure preferably takes the shape of an animal or other creature which is the subject of a story in the book. In this way, a young reader can easily correlate the movable toy figure with the story. The book is particularly useful in encouraging children to read.