Abstract: A modified beetle luciferase protein which is an environmentally sensitive reporter protein is provided.

Abstract: A modified beetle luciferase protein which is an environmentally sensitive reporter protein is provided.

Abstract: A modified beetle luciferase protein which is an environmentally sensitive reporter protein is provided.

Abstract: A modified beetle luciferase protein which is an environmentally sensitive reporter protein is provided.

Abstract: A modified beetle luciferase protein which is an environmentally sensitive reporter protein is provided.

Abstract: A quick swap fender includes an intermediate mounting structure having securing features that are configured to secure the intermediate mounting structure to a body panel. The intermediate mounting structure includes a first locating feature. A detachable fender includes a second locating feature that is configured to cooperate with the first locating feature in an installed position. The first and second locating features retain the detachable fender relative to the intermediate mounting structure in a desired position, which may correspond to a typical fender “street use” position. A fastening device removably secures the detachable fender relative to the intermediate mounting structure in the installed position.

Abstract: A closed loop heat transfer system located on the surface near the wellhead for transporting hot fluid through a tubing located in the annulus between the well casing and the outer surface of the production string. The tubing extends down along the production string to a coil submerged in the oil reservoir in the vicinity of the production pump and back to the surface for reheating and recirculation. The tubing provides heat transfer from the hot fluid to the production fluid, as well as the downhole pump and the region of the oil reservoir surrounding the pump. The system is preferably operated to transfer enough heat to the oil to prevent paraffins from coagulating and forming deposits on the production string or sucker rods, if used. The higher temperature lowers the viscosity of the oil and increases oil production.

Abstract: A closed loop heat transfer system located on the surface near the wellhead for transporting hot fluid through a tubing located in the annulus between the well casing and the outer surface of the production string. The tubing extends down along the production string to a coil submerged in the oil reservoir in the vicinity of the production pump and back to the surface for reheating and recirculation. The tubing provides heat transfer from the hot fluid to the production fluid, as well as the downhole pump and the region of the oil reservoir surrounding the pump. The system is preferably operated to transfer enough heat to the oil to prevent paraffins from coagulating and forming deposits on the production string or sucker rods, if used. The higher temperature lowers the viscosity of the oil and increases oil production.