Kobe sub with inflow control, wellbore tubing string and method
AssigneePackers Plus Energy Services Inc.
InventorsDaniel Jon Themig, Robert Joe Coon
Life of this patent
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Abstract
A kobe sub includes a kobe installed in a port of the sub, the kobe includes a cap portion accessible in the inner bore, a base mounted in the port and connected to the cap portion, a channel extending through the base and closed by the cap portion; and an inflow controller positioned to control fluid flowing through the channel toward the inner bore when the cap portion is opened; and a port opening tool for opening the cap portion. The kobe may be employed with a frac port.
Claims32
A kobe sub comprising:
- a tubular body connectable into a wellbore tubing string, the tubular body including a wall including an outer surface and an inner surface defining an inner bore and a port through the wall;
- a kobe installed in the port with a cap portion accessible in the inner bore, a base mounted in the port and connected to the cap portion, a channel extending through the base and closed by the cap portion;
- and an inflow controller positioned to control fluid flowing through the channel toward the inner bore when the cap portion is opened.
A tubing string system for installation in a wellbore comprising:
- a tubular body including a tubular wall with an outer surface and an inner surface defining an inner bore and a port through the tubular wall;
- a kobe installed in the port with a cap portion accessible in the inner bore, a base mounted in the port and connected to the cap portion, a channel extending through the base and closed by the cap portion;
- and an inflow controller positioned to control fluid flowing through the channel toward the inner bore when the cap portion is opened;
- and a port opening tool for opening the cap portion.
A method for forming a fluid channel through a tubing string wall, the method comprising:
- installing a tubing string in a wellbore, the tubing string including a tubular wall including an outer surface and an inner surface defining an open inner bore and a port through the wall;
- a kobe installed in the port with a cap portion accessible in the inner bore, a base mounted in the port and connected to the cap portion, a channel extending through the base and closed by the cap portion;
- and an inflow controller positioned to control fluid flowing through the channel toward the inner bore when the cap portion is opened;
- manipulating a port opening tool in the inner bore to open the cap portion and to allow fluid flow through the inflow controller and the channel into the inner bore.
A method for fluid treatment of a borehole, the method comprising:
- running a tubing string into a wellbore to a desired position for treating the wellbore;
- opening a frac port by application of a force to a closure for the frac port;
- injecting stimulating fluids through the frac port;
- closing the frac port;
- opening a fluid inflow control port by opening an inner cap over the fluid inflow control port;
- and permitting fluid to pass from the wellbore into the tool through the fluid inflow control port.
Dependencies are inferred from the claim text.