Abstract: A trailer tow assist system including a camera that captures a rearward image of the trailer and its surroundings, a human machine interface that displays the rearward image, an input device that receives user input, and an electronic processor. The electronic processor receives the rearward image, identifies a target-space within the surroundings, determines a vehicle orientation relative to the target-space, determines a trailer angle relative to the vehicle, determines a trailer trajectory within the surroundings, and displays the trailer trajectory and rearward image on the human machine interface. The electronic processor also controls, in response to the user input, the vehicle to follow the trailer trajectory along a centerline of the trailer trajectory.

Abstract: A method of treating a wellbore comprises injecting into the wellbore a high density brine comprising water; an inorganic salt; and a polyol having at least four hydroxyl groups per molecule, the polyol being present in an amount effective to cause the high density brine to have a density of about 14.2 pounds per gallon to about 22 pounds per gallon; and to suppress the true crystallization point of the brine to about ?70° F. to about 70° F. at a pressure of about 0 to about 20000 psi determined according to API 13J.