Derrick-drawworks unit mobile drilling rigs for cluster DRILLING

摘要

Derrick-winch unit relates to drilling equipment, namely, to the mobile drilling rigs designed for multiple drilling of exploration and production wells. The technical result of the utility model is to reduce the labor costs for assembly processes / demounting winch derrick-unit reduction of metal, providing a uniform distribution of load on the metal structure, increasing the reliability of the system for moving derrick-winch unit with simplification of the construction derrick-winch unit. Derrick-winch unit mobile drilling rig for drilling wells cluster includes drilling a base, a derrick, drawworks mobile unit carrying structure. The bearing structure is made of a series-connected frames, comprising longitudinal beams - the bottom frame and the ramp-frame. The lower frame is formed as a base member of the drill and is connected to its support legs. The mobile unit drawworks is mounted on a frame-ramp. Drilling rig obliquely installed at the end portion of the ramp-frame basis between the drill and the mobile unit drawworks or mobile unit drawworks or directly installed on the drill base. Derrick-winch unit provided with a movement system comprising a parallel guide mechanism and displacement. Each of the guides is formed by at least one sliding surface. The mechanism of movement is in the form of hydraulic cylinders, each of which is associated with hydraulically and is mounted along the corresponding guide with locking and displacement. The longitudinal beams of the lower frame and the ramp-frame support structure mounted along two guide sliding on their surfaces and formed with mating sliding surfaces. Wherein each hydraulic cylinder is connected to the end surface of the lower frame. 1N. 1 and ZP f-ly. 3 yl.