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US 12,486,735 B2Granted
Downhole tool, bottomhole assembly, and drilling method using same
AssigneeSaudi Arabian Oil Company
InventorsFernando Rodriguez Campos, Ahmed Elsayed Khalaf
Life of this patent
Estimating the term…
Abstract
A downhole tool includes: a tubular body having a central bore; a plurality of first ports that extend through a sidewall of the tubular body; a plurality of reaming blades that extend from an outer surface of the sidewall; and a flow control node configured to control a switching of each of the plurality of first ports between an open state and a closed state based on a command from a surface control unit. The plurality of first ports are configured to eject rearward jets of fluid in the open state.
Claims19
A downhole tool comprising:
- a tubular body having a central bore;
- a plurality of first ports and a plurality of second ports that extend through a sidewall of the tubular body;
- a plurality of reaming blades that extend from an outer surface of the sidewall, wherein the plurality of reaming blades is retractable;
- and
- a flow control node configured to control a switching of each of the plurality of first ports and each of the plurality of second ports between an open state and a closed state based on a command from a surface control unit by individually controlling a separate valve for each of the plurality of first ports and a separate valve for each of the plurality of second ports,
- wherein the plurality of first ports is configured to eject rearward jets of fluid in the open state, and
- wherein the plurality of second ports is configured to eject forward jets of fluid in the open state.
4 more elements
A bottomhole assembly (BHA) comprising:
- a drill bit;
- a measurement-while-drilling (MWD) tool uphole of the drill bit;
- and
- a downhole tool uphole of the MWD tool,
- wherein the downhole tool comprises:
- a tubular body having a central bore;
- a plurality of first ports and a plurality of second ports that extend through a sidewall of the tubular body;
- a plurality of reaming blades that extend from an outer surface of the sidewall
- wherein the plurality of reaming blades is retractable;
- and
- a flow control node configured to control a switching of each of the plurality of first ports and each of the plurality of second ports between an open state and a closed state based on a command from a surface control unit by individually controlling a separate valve for each of the plurality of first ports and a separate valve for each of the plurality of second ports, and
- wherein the plurality of first ports is configured to eject rearward jets of fluid in the open state, and
- wherein the plurality of second ports is configured to eject forward jets of fluid in the open state.
10 more elements
A drilling method comprising:
- connecting a downhole tool on a bottomhole assembly (BHA), the downhole tool comprising:
- a tubular body having a central bore,
- a plurality of first ports and a plurality of second ports that extend through a sidewall of the tubular body,
- a plurality of reaming blades that extend from an outer surface of the sidewall,
- wherein the plurality of reaming blades is retractable, and
- a flow control node configured to control a switching of each of the plurality of first ports and each of the plurality of second ports between an open state and a closed state based on a command from a surface control unit by individually controlling a separate valve for each of the plurality of first ports and a separate valve for each of the plurality of second ports,
- wherein the plurality of first ports is configured to eject rearward jets of fluid in the open state, and
- wherein the plurality of second ports is configured to eject forward jets of fluid in the open state;
- running the downhole tool and the BHA down a wellbore and drilling until a target depth;
- and
- pulling the downhole tool and the BHA out of the wellbore comprising:
- ejecting the rearward jets of fluid through the plurality of first ports and back reaming the wellbore using the plurality of reaming blades.
9 more elements
Dependencies are inferred from the claim text.