Abstract: A device for forming one or more wellbore sealants in a wellbore can include a wellbore barrier and a cured polymer. The wellbore barrier can be positioned in the wellbore. The cured polymer can be positioned with respect to the wellbore barrier for swelling the device from a compressed configuration to a swelled configuration for forming one or more wellbore sealants in the wellbore.

Abstract: A method including entraining carbon dioxide (CO2) in a cement slurry composition and subjecting the cement slurry composition to conditions under which the CO2 achieves and maintains a supercritical state; and allowing the cement slurry composition to harden to form a hardened cement having CO2 sequestered therein.

Abstract: A traction device for treating a fracture in the femur bone of a child between the ages of 3 to 10 is described. A special frame and pelvic belt used in conjunction with adjustable tensioning devices is fitted to a child for the treatment of the fracture of the femur bone. This specialized traction device in one embodiment utilizes a pin through the lower part of the femur bone to provide tension to the leg and in another embodiment a leg wrap connected to a sole plate provides tension to the leg. A sling to relieve the downward load of the child patient's leg is provided on one embodiment and there is also provided a leg support under the knee to further relieve the down load resulting from the weight of the leg.