System and choke valve actuator mechanism for operating a plunger lift well

Patent · Tue Oct 21 00:00:00 EDT 1986

OSTI ID:6975025

Abel, T E

An actuator mechanism is described for selective positioning of a choke valve element relative to a valve seat within a piping flow tee for regulating the flow of gas and oil from a producing wellhead. The flow tee has an opening to receive and connect the actuator mechanism, an inlet opening for conducting gas and oil toward the choke valve seat and an outlet opening for conducting gas and oil beyond the choke valve seat: the actuator mechanism comprises a closed body member with a base end adapted for connection with the flow tee opening, a control shaft positioning collar housed within the body member and a cylinder member connected to the upper end of the body member. It also has a control piston housed within the cylinder member, a cap member connected to the upper end of the cylinder member, a control piston stop sleeve carried by the cap member and an elongated control shaft; the control shaft extending coaxially through the body member, the control shaft positioning collar, the cylinder member, the control piston, the cylinder cap member and the stop sleeve; the body member, the cylinder member and the stop sleeve each having a small diameter axial bore for rotatable and slidable mounting of the control shaft; and the control shaft having an upper end projecting above the stop sleeve and adapted for carrying a handwheel thereon and a lower end projecting below the body member and into the flow tee and adapted for carrying the choke valve element thereon.

• Assignee: NOV; NOV-85-034025; EDB-87-008741
• Patent Number(s): US 4617992
• OSTI ID: 6975025
• Resource Relation: Patent File Date: Filed date 3 May 1985
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
VALVES
OIL WELLS
ACTUATORS
CONTROL EQUIPMENT
CYLINDERS
GAS FLOW
LIQUID FLOW
PISTONS
POSITIONING
SHAFTS
WELLHEADS
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
MACHINE PARTS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing