Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location

Claim 1

An arrangement which forms the support for an elevated drilling means and drawworks during drilling operations and which also collapses to form a transportable arrangement for the drilling mast and drawworks comprising: a. elevatable support means; b. support means on said elevatable support means supporting the drilling mast means in a longitudinally extending relationship during transport, said support means including: A-frame means mounted on said elevatable support means and pivotally connected at its upper end to said longitudinally extending drilling mast at a position laterally spaced from the foot of the drilling mast; c. wheel means connected to said elevatable support means for transport of the arrangement and supported drilling mast and drawworks; d. base support means; e. means extending between and pivotally connected to each said elevatable support means and said base support means whereby said base support means may be positioned adjacent the elevatable support means during transport and may be lowered onto the earth's surface at a well location; f. jack means pivotally connected to and extending between each said base support means and elevatable support means for elevating said elevatable support means with the drawworks and drilling mast supported on the A-frame; and g. means to pivot said drilling mast about said A-frame whereby the foot of the drilling mast may be swung downwardly and secured to said base support means to retain the drilling mast in an erect position during drilling operations.