FIELD: oil and gas industry.
SUBSTANCE: invention refers to the method of control over movement of block on drilling rig. According to the first version the method consists in determination of speed of the movable block, of position of the block within the range of displacement, of load of weight on the movable block, in comparison of speed of the movable block with maximum value of speed, notably, that maximum value of speed is determined in function of weight of load on the movable block and position of the block in the range of displacement. Also speed of the movable block is controlled so, as to maintain its speed at maximum value of speed or below it. According to the second version the method provides for determination of speed of the movable block, of position of the movable block within the range of displacement, and also weight of load on the movable block, for calculation of momentum of the movable block, for comparison of momentum of the movable block with maximum value of momentum. Also speed of the movable block is controlled so, as to maintain its momentum at maximum value of momentum or below it.
EFFECT: increased safety of rig operation.
24 cl, 12 dwg
