Extended reach tool for a bottom hole assembly
AssigneeKLX Energy Services LLC
InventorsRyan Nyberg, Robert Stratton, John D. McClure
Life of this patent
Estimating the term…
Abstract
A downhole tool comprises a tool housing defining a flow passage therethrough from a first to a second end thereof. A poppet is axially movable on a poppet mandrel positioned in the tool housing. The poppet mandrel has at least one outlet port defined therein. A pilot valve is rotatable about the poppet mandrel. Rotation of the pilot valve opens and closes the at least one outlet port in the poppet mandrel to permit and block flow therethrough, and wherein the opening and closing of the at least one outlet port moves the poppet axially on the poppet mandrel.
Claims21
A downhole tool comprising:
- a tool housing defining a fluid passageway for a fluid flow from a first to a second end of the tool housing;
- a fluid flow control valve movable in the tool housing between an open position in which flow through the fluid flow valve is permitted and a closed position in which flow through the fluid flow control valve is restricted, wherein cycling the fluid flow control valve between the open and closed positions to permit and restrict flow therethrough causes the downhole tool to axially oscillate, the fluid flow control valve comprising;
- a poppet;
- and
- a poppet mandrel, the poppet being reciprocable on the poppet mandrel to move the fluid flow control valve between the closed position and the open position solely as a result of fluid pressure acting on the poppet;
- and
- a mud motor assembly comprising a rotor and a stator connected to the tool housing, the fluid passageway communicated with an interior of the mud motor assembly.
A downhole tool comprising:
- a tool housing defining a flow passage for a fluid flow from a first to a second end of the tool housing;
- a fluid flow control valve movable between open and closed positions in the tool housing, wherein cycling the fluid flow control valve between the open and closed positions to permit and restrict fluid flow causes the downhole tool to axially oscillate, the fluid flow control valve comprising;
- a poppet;
- and
- a poppet mandrel, the poppet being reciprocable on the poppet mandrel;
- a pilot valve rotatably disposed about the poppet mandrel;
- and
- a rotational drive connected to the pilot valve to rotate the pilot valve, the rotational drive being rotated by fluid flowing through the downhole tool, wherein the poppet is reciprocated on the poppet mandrel solely as a result of fluid pressure acting on the poppet.
A downhole tool comprising:
- a tool housing defining a flow passage therethrough for a fluid flow from a first to a second end of the tool housing;
- a poppet axially movable on a poppet mandrel positioned in the tool housing, the poppet mandrel having at least one outlet port defined therein;
- a pilot valve rotatable about the poppet mandrel, wherein rotation of the pilot valve opens and closes the at least one outlet port in the poppet mandrel to permit and block the fluid flow through the mandrel, and wherein the poppet moves axially on the poppet mandrel solely as a result of fluid pressure acting on the poppet.
Dependencies are inferred from the claim text.