Geothermal well head and actuator assembly

Details Geothermal well head and actuator assembly Geothermal well head and actuator assembly

1981-08-10

1983-07-05

Pate, III, William F.

Wells

With below and above ground modification

Head for tool, piston or cleaner

166 72, 166 80, 166 86, 166113, 166170, 166177, E21B 3704

Patent

active

043913245

ABSTRACT:
A valve supporting tubular assembly capable of being mounted on a geothermal well head, with the tubular assembly of such structure that an internal plug that supports resilient packers and has circumferentially extending teeth defined thereon may be removably locked in a first position to seal the interior of the tubular assembly above the outlets to the valves, the plug may also be moved longitudinally in the tubular assembly to scrape solids deposited on the interior surface thereof by geothermal fluids, and the plug may also be moved to a second position to pack off the interior of the tubular assembly below the valve outlets to permit the valves to be moved or maintenance work performed thereon without shutting down the geothermal well. In addition, the plug is provided with means to equalize the pressure above and below the plug in the tubular assembly to permit the plug and components situated thereabove to be removed from the tubular assembly.
A gate valve is situated above the valve supporting assembly and is normally open, with the gate valve supporting a hydraulic cylinder that serves to longitudinally move an actuator connected to the plug. Visual means are provided to indicate the position of the plug in the valve supporting assembly. The gate valve defines a confined space above the valve member when the latter is in a closed position in which the plug may be disposed. With the gate valve member in a closed position, the plug, actuator and hydraulic cylinder may be removed from the valve supporting tubular assembly for maintenance purposes without shutting down the well.

REFERENCES:
patent: 2486308 (1949-10-01), McCray et al.
patent: 2678696 (1954-05-01), Crake
patent: 2788073 (1957-04-01), Brown
patent: 3166345 (1965-01-01), Pinkard
patent: 3976130 (1976-08-01), Chambless et al.

Affiliated with

Also associated with

Rating

Geothermal well head and actuator assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Geothermal well head and actuator assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geothermal well head and actuator assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1435816