US Patent 7614451 Method for constructing and treating subterranean formations

A method for servicing a well comprises providing at least one trailer, providing at least one towing vehicle, providing servicing equipment, supporting the equipment with the trailer, and moving the towing vehicle, so as to move the trailer along with the equipment. The combination gross weight rating or combination gross vehicle weight of the trailer and the towing vehicle may be less than 26,001 pounds or less than less than the commercial drivers license threshold, under the Federal Motor Carrier Safety Administration's regulations.