Mud Pulser with Vertical Rotational Actuator

摘要

A mud pulser system for use in a wellbore includes a pulser assembly disposed in a drill string and through which drilling fluid is metered in order to generate pressure pulses in the drilling fluid. The pulser assembly includes a pulser body having an inlet and an exit. Included in the pulser body is a rotary member having multiple ports formed through the member. The rotary member can be spherically shaped. The ports are formed so that selectively rotating the rotary member registers opposing ends of a one of the ports with the inlet and exit in the body to provide communication between the inlet and exit. An actuator couples with the rotary member for its selective rotation.

主权项

1. A mud pulser system for use with a drilling system comprising:
a pulser assembly disposed in a path of drilling fluid flowing through the drill string and that comprises a body with an inlet, an exit, and a cavity between the inlet and exit; a rotary member disposed in the cavity; and multiple ports formed through the rotary member, so that when the rotary member is selectively rotated to register an end of one of the ports with the inlet an opposing end of the one of the ports registers with the exit so that the drilling fluid flows between the inlet and exit and through the one of the ports, and so that when the rotary member is selectively rotated to move all of the ports out of registration with the inlet, a pressure pulse is generated in the drilling fluid.