초록 ▼

A submersible pump and safety system for installation in wells having a submersible pump adapted to land within a well flow conductor for pumping well fluids to the surface plus a subsurface safety valve or valves for maintaining the well under control as the pump is run into and removed from the we

A submersible pump and safety system for installation in wells having a submersible pump adapted to land within a well flow conductor for pumping well fluids to the surface plus a subsurface safety valve or valves for maintaining the well under control as the pump is run into and removed from the well. The subsurface safety valve is hydraulically actuated by the discharge pressure of the pump. The landing nipple in which the pump and safety valve are mounted has longitudinal flow passageways to communicate pump discharge pressure to the safety valve. The landing nipple and longitudinal flow passageways are designed for improved reliability and minimize the possibility of mechanical damage interrupting control fluid flow to the safety valve.

대표청구항 ▼

A safety system for a submersible pump, having an intake and a discharge, disposed within a well flow conductor comprising: a. means for installing the pump within the flow conductor at a preselected downhole location and for forming a fluid seal with the interior of the flow conductor to direct flu

A safety system for a submersible pump, having an intake and a discharge, disposed within a well flow conductor comprising: a. means for installing the pump within the flow conductor at a preselected downhole location and for forming a fluid seal with the interior of the flow conductor to direct fluid flow through the pump; b. means for installing a subsurface safety valve within the flow conductor at the preselected downhole location below the submersible pump and for forming a fluid seal between the exterior of the safety valve and the interior of the flow conductor; c. the safety valve having hydraulically actuated means for opening and closing the safety valve; d. a landing nipple with a longitudinal bore therethrough comprising a portion of the flow conductor at the preselected downhole location; e. the landing nipple comprising a portion of the means for installing the submersible pump and the safety valve within the flow conductor; f. a longitudinal flow passageway extending partially through the landing nipple and communicating with the longitudinal bore at preselected locations; and g. the longitudinal flow passageway comprising means for conducting fluid pressure from the pump discharge to the hydraulically actuated means to open the safety valve.