초록 ▼

A pilot valve system including an electrical connector assembly for a subsurface safety valve operated by control fluid pressure from the surface including a pilot valve connected with the control fluid line to the subsurface safety valve and into the well production string immediately above the saf

A pilot valve system including an electrical connector assembly for a subsurface safety valve operated by control fluid pressure from the surface including a pilot valve connected with the control fluid line to the subsurface safety valve and into the well production string immediately above the safety valve to bypass the control fluid pressure directly into the tubing string and dump the control fluid pressure from the subsurface safety valve into the tubing string directly above the valve to minimize the time delay between control fluid pressure reduction and the safety valve closure. The electrical connector assembly includes a male plug assembly for connection on the pilot valve and a female plug assembly mounted in a side pocket mandrel for the pilot valve, such plug assemblies including annular spaced insulated connector rings in the side pocket mandrel and annular spaced insulated spring-type conductors on the male plug assembly for engaging the female plug assembly connector rings when the pilot valve is installed in the side pocket mandrel. Also disclosed is a minimum backlash latch assembly for releasably locking the pilot valve, or other well tools, along a well bore in a receptacle such as a side pocket mandrel.

대표청구항 ▼

An electrical connector assembly for electrical contact with a removable well tool in a well tubing comprising: housing means adapted for mounting in said well tubing: a plurality of longitudinally spaced insulated electrical contact rings mounted in said housing means; an insulator ring mounted in

An electrical connector assembly for electrical contact with a removable well tool in a well tubing comprising: housing means adapted for mounting in said well tubing: a plurality of longitudinally spaced insulated electrical contact rings mounted in said housing means; an insulator ring mounted in said housing means between each adjacent pair of said contact rings, each said insulator ring having longitudinal slots for electrical wires to said contact rings in said housing means; an electrical wire in said housing means to each said contact ring; a tubular member adapted to be connected on said well tool and defining a flow passage through said electrical connector assembly; a tubular insulator on said tubular member; a plurality of longitudinally spaced annular contact bodies on said tubular insulator each provided with longitudinal slots for electrical wires to each said contact body; an insulator ring on said tubular insulator between each adjacent pair of said contact bodies, said insulator rings on said tubular insulator being provided with slots for electrical wires; and electrical contact ring on each contact body sized and spaced to electrically contact each said contact ring in said housing means, each contact ring on each said contact body being a ring-shaped spring member formed of a plurality of interconnected circumferentially spaced longitudinal outwardly bowed spring-like contacts; and an electrical wire to each said contact ring on said tubular insulator.