Radial flow plunger lift lubricator
A plunger lift lubricator having an internal bypass configuration which enables a plunger to be reliably captured and while still allowing the flow of fluid up through the lubricator before the fluid is directed radially outward and down the internal bypass passageways. The lubricator can comprise both an upper flow path and a lower flow path and can be configured such that a plunger can travel all the way up to shift a valve in the plunger if needed.
1. A plunger lift lubricator comprising:
a sleeve comprising plunger holding area;
an upper chamber comprising a diameter larger than a diameter of the plunger holding area;
a plurality of bypass openings disposed radially around a circumference of said upper chamber;
at least one internal bypass passage which extends at least a length of a plunger holding area and which is positioned such that it is not blocked by a plunger when the plunger is disposed within the plunger holding area; and
an upper flow path, said upper flow path comprising:
at least one upper opening providing fluid communication between an interior of said plunger lift lubricator and said at least one internal bypass passage.
2. The plunger lift lubricator of claim 1 wherein said plunger lift lubricator is configured such that a flow of fluid can travel up through said sleeve and into said upper chamber before turning exiting said upper chamber through the plurality of bypass openings.
3. The plunger lift lubricator of claim 1 wherein said at least one internal bypass passage comprises an annulus formed between an exterior of said plunger holding area and a body of said plunger lift lubricator.
4. The plunger lift lubricator of claim 1 wherein said at least one internal bypass passage comprises a plurality of passages disposed outside of said plunger holding area.
5. The plunger lift lubricator of claim 1 wherein said at least one internal bypass passage comprises a plurality of channels formed on an outside of said plunger holding area.
6. The plunger lift lubricator of claim 1 wherein said at least one internal bypass passage comprises a plurality of channels formed on an interior of a body of said plunger lift lubricator such that when said sleeve is positioned within said body, the plurality of internal bypass passages are formed within said plurality of channels.
7. The plunger lift lubricator of claim 1 further comprising a lower flow path.
8. The plunger lift lubricator of claim 7 wherein said lower flow path comprises at least one lower opening positioned such that it is below a plunger when the plunger is fully seated up into said plunger holding area.
9. The plunger lift lubricator of claim 8 wherein said at least one lower opening is disposed through said sleeve.
10. The plunger lift lubricator of claim 8 wherein said at least one lower opening comprises a plurality of lower openings.
11. The plunger lift lubricator of claim 1 further comprising a plunger catching mechanism.
12. A method for producing fluids through a plunger while the plunger is disposed in a sleeve of a plunger lift lubricator, the method comprising:
flowing fluid up through the plunger into an upper chamber having a diameter larger than the sleeve, directing the fluid radially out of the upper chamber by passing the fluid through a plurality of openings disposed in a circumference of the upper chamber to a distance beyond an outside circumference of the plunger, then allowing the fluid to flow down past the plunger through at least one passage while the plunger is disposed within the plunger lift lubricator.
13. The method of claim 12 wherein allowing the fluid to flow down past the plunger through at least one passage comprises directing the fluid to a distance beyond an outside circumference of the plunger.
14. The method of claim 12 further comprising simultaneously allowing fluid to be produced by directing the fluid radially outward before the fluid reaches the plunger.
15. The method of claim 12 further comprising allowing fluid that flowed up through the plunger to be merged together with fluid that did not flow up through the plunger before any of the merged fluid exits a plunger lift lubricator.
16. The method of claim 12 further comprising activating a mechanism to capture the plunger such that the plunger is held within the plunger lift lubricator.
17. The method of claim 12 wherein allowing the fluid to flow down past the plunger through at least one passage comprises allowing the fluid to flow down through an annulus formed between an exterior of a sleeve and an interior of a body of the plunger lift lubricator.
18. The method of claim 12 wherein allowing the fluid to flow down past the plunger through at least one passage comprises allowing the fluid to flow through a plurality of passages arranged circumferentially around an exterior of a plunger holding area of the plunger lift lubricator.
19. The method of claim 12 wherein directing the fluid radially out of the upper chamber comprises passing the fluid out through a plurality of openings disposed above a top of the plunger when the plunger is disposed within the plunger lift lubricator.