Fluid pressure pulse generator and method of using same

摘要

A fluid pressure pulse generator comprising a stator and rotor that can be used in measurement while drilling using mud pulse or pressure pulse telemetry is disclosed. The stator comprises a stator body with a circular opening therethrough and the rotor comprises a circular rotor body rotatably received in the circular opening of the stator body. One of the stator body or the rotor body comprises one or more than one fluid opening for flow of fluid therethrough and the other of the stator body or the rotor body comprises one or more than one full flow chamber. The rotor is rotatable between a full flow configuration whereby the full flow chamber and the fluid opening align so that fluid flows from the full flow chamber through the fluid opening, and a reduced flow configuration whereby the full flow chamber and the fluid opening are not aligned. The flow of fluid through the fluid opening in the reduced flow configuration is less than the flow of fluid through the fluid opening in the full flow configuration thereby generating a fluid pressure pulse.

主权项

1. A fluid pressure pulse generator system comprising:
(a) a stator comprising a stator body with a circular opening therethrough and one or more than one full flow chamber; (b) a first rotor comprising a first circular rotor body rotatably receivable in the circular opening of the stator body, the first rotor body comprising one or more than one first fluid opening for flow of fluid therethrough; and (c) a second rotor comprising a second circular rotor body rotatably receivable in the circular opening of the stator body, the second rotor body comprising one or more than one second fluid opening for flow of fluid therethrough, a flow area of the second fluid opening being less than a flow area of the first fluid opening; wherein the first and second rotors are rotatable between:
(i) a full flow configuration whereby the full flow chamber and the first or second fluid opening align so that fluid flows from the full flow chamber through the first or second fluid opening; and(ii) a reduced flow configuration whereby the full flow chamber and the first or second fluid opening are not aligned and the flow of fluid through the first or second fluid opening is less than the flow of fluid through the first or second fluid opening in the full flow configuration thereby generating a first fluid pressure pulse.