Powered Wellbore Bailer

• US 20150240583A1
• Filed: 09/27/2012
• Published: 08/27/2015
• Est. Priority Date: 09/27/2012
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Mineo, Richard, Bellotte, Dominick Joseph
• Granted Patent: US 9,334,704 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E21B 2200/04 Ball valves
• CPC Class Codes: E21B 27/04 where the collecting or depositing means include helical conveying means
• CPC Class Codes: E21B 34/06 in wells
• CPC Class Codes: E21B 34/063 Valve or closure with destructible element, e.g. frangible disc E21B34/103 takes precedence

Abstract

A wellbore bailer has a rotary motor coupling, a cylinder having an open end, and a pump in the cylinder coupled to the rotary motor coupling and configured to pump fluid when rotated via the coupling. A closure of the bailer is changeable between sealing and allowing flow through the open end.

Claims

1. A wellbore bailer, comprising:

a rotary motor coupling;

a cylinder having an open end;

a pump in the cylinder coupled to the rotary motor coupling and configured to pump fluid when rotated via the coupling; and

a closure changeable between sealing and allowing flow through the open end.

2. The wellbore bailer of claim 1, where the pump comprises a screw sealed along its length to a sidewall of the cylinder.

3. The wellbore bailer of claim 1, where the pump comprises a central shaft carrying a helical blade that extends outward from the shaft and defining a helical fluid chamber substantially the length of pump.

4. The wellbore bailer of claim 3, where the helical blade seals with an interior wall of the cylinder.

5. The wellbore bailer of claim 1, where the pump comprises a power screw coupled to the rotary motor coupling and a piston carried on the power screw and sealed to a sidewall of the cylinder.

6. The wellbore bailer of claim 1, further comprising a battery.

7. The wellbore bailer of claim 1, further comprising a rotary downhole type motor coupled to the rotary motor coupling;

and

an electrical coupling coupled to the downhole type motor and adapted to couple to an electrical conductor of a well wireline.

8. The wellbore bailer of claim 1, where the closure comprises a check valve.

9. The wellbore bailer of claim 8, where the check valve comprises a ball in the cylinder that seals the opening against flow out of the cylinder.

10. The wellbore bailer of claim 1, where the closure comprises a frangible plate.

11. The wellbore bailer of claim 10, where the pump is axially moveable into the frangible plate to break the frangible plate.

12. The wellbore bailer of claim 1, where the pump is configured to pump fluid out of the cylinder when rotated via the coupling.

13. The wellbore bailer of claim 1, where the pump is configured to pump solids entrained in fluid into the cylinder when rotated via the coupling.

14. The wellbore bailer of claim 1, further comprising a actuator to trigger the motor based on pressure or time.

15. A method, comprising:

rotating a pump of a wellbore bailer with a downhole type motor; and

in response to rotating the pump, pumping fluids between a wellbore and a chamber of the wellbore bailer, where pumping fluids between a wellbore and a chamber of the wellbore bailer comprises pumping fluids out of the chamber into the wellbore; and

shifting the pump axially to break a frangible plate sealing the chamber.

23. The method of claim 15, where rotating the pump of a wellbore bailer with the downhole type motor comprises rotating a central shaft carrying a helical blade that extends outward from the shaft defining a helical fluid chamber substantially the length of the pump.

24. The method of claim 15, where rotating the pump of the wellbore bailer with the downhole type motor comprises powering the downhole type motor with a battery of the motor.

16-22. -22. (canceled)