| 摘要 |
The invention relates to a system for controlling a flow of hydrocarbon feedstock (oil, oil and gas condensate, natural gas etc.) from underwater well. The system comprises a metal casing with holes and valves thereon submerged from a floating platform to an injured underwater well. The holes in the casing are divided into two groups, the first group holes are positioned at different levels around the casing at an outer surface of its bottom part and connected by hoses with the floating platform, the valves are double-acting and for killing a well the holes serve for carrying off ejecting material and additionally they can be used for producing hydrocarbon feedstock or in the opposite direction to feed liquid into the casing to kill the well. Holes of the second group are positioned in the upper part of the casing and are intended for filling the casing internal volume with polished steel balls through hoses. The use of the inventive system simplifies well killing and providing reliability and safety of killing operations. |
