ELECTRIC-ACTUATED CHOKE APPARATUS AND METHODS

摘要

In one aspect, a choke apparatus includes a choke body through which fluid is adapted to flow, a bonnet assembly connected to the choke body, and an electric actuator operably coupled to the bonnet assembly. The choke apparatus operates to control the imposition of backpressure on the fluid. In one embodiment, an actuator stem of the electric actuator is toollessly operably coupled to a choke stem of the bonnet assembly. In another embodiment, an adapter is connected to the bonnet assembly. In yet another embodiment, an absolute position sensor is disposed within a housing of the electric actuator. In still yet another embodiment, a measurement scale is used to indicate choke position. In certain embodiments, the choke apparatus provides for manual override. A method of assembling a choke apparatus is provided. A method of retrofitting a choke apparatus is provided.

主权项

1. A choke apparatus, comprising:
a choke body through which fluid is adapted to flow, the choke body defining a longitudinal axis; a bonnet assembly connected to the choke body, the bonnet assembly comprising a choke stem; and an electric actuator operably coupled to the bonnet assembly, the electric actuator comprising an actuator stem toollessly operably coupled to the choke stem of the bonnet assembly; wherein the actuator stem and the choke stem are generally coaxial along the longitudinal axis of the choke body; and wherein the actuator stem and the choke stem are movable, relative to the choke body, to control imposition of backpressure on the fluid when the fluid flows through the choke body.