CA2568230A1 - Submersible pump - Google Patents
Submersible pump Download PDFInfo
- Publication number
- CA2568230A1 CA2568230A1 CA002568230A CA2568230A CA2568230A1 CA 2568230 A1 CA2568230 A1 CA 2568230A1 CA 002568230 A CA002568230 A CA 002568230A CA 2568230 A CA2568230 A CA 2568230A CA 2568230 A1 CA2568230 A1 CA 2568230A1
- Authority
- CA
- Canada
- Prior art keywords
- tube
- gas
- valve
- piston
- submersible pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005086 pumping Methods 0.000 claims abstract 21
- 239000007788 liquid Substances 0.000 claims abstract 18
- 230000005484 gravity Effects 0.000 claims 4
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
- F04B47/04—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level the driving means incorporating fluid means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
- F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
A submersible pump (10) for attachment to the lower end of a well pipe discharge tube (100) for insertion in liquid includes a stationary collecting tube (20) for collecting the liquid and an upward and downward reciprocating pumping tube (30) within the collecting tube (20) for pushing and lifting the liquid into the discharge tube (100); source of pressurized gas (50), a casing assembly (41) including a casing tube (42) and a gas valve (60), and a piston assembly (88) with the casing tube (42) including a piston tube (81) having a lower end connected to the pumping tube (30) for reciprocating the pumping tube (30) and an upper portion having pistons (90) for moving in chambers with the inside of the casing tube (42). Preferably the same amount of liquid is pumped during the upward movement of the pumping tube (30) as during the downward movement.
Claims (25)
1. A submersible pump for connection to a discharge tube having a lower end including an entrance; said pump for pumping a liquid into the entrance of the discharge tube; said pump including:
a wet portion for disposition in the liquid including:
a collecting tube defining a collection chamber for collecting the liquid;
said collecting tube including:
an upper end; and a lower end including:
a collection port for ingress of the liquid into said collection chamber; and a collection valve having open and closed positions that open and close said collection port; and a pumping tube for pumping the liquid; said pumping tube defining a lifting chamber; said pumping tube having a longitudinal axis and including:
an upper end including an egress orifice for egress of lifted liquid into the discharge tube;
a lower end including:
an ingress port for ingress of liquid from said collection chamber; and an ingress valve having open and closed positions that open and close said ingress port; said pumping tube adapted for reciprocating, longitudinal, sealed, and sliding lifting and pushing movements with the discharge tube and with said collecting tube; the lifting movement being from a lower position, wherein said pumping tube lower end is within said collecting tube and distal the entrance of the discharge tube and said ingress valve is closed, to an upper position, wherein said pumping tube lower end is proximal the entrance of the discharge tube, such that liquid within said lifting chamber is lifted into the entrance of the discharge tube and liquid flows into said collection chamber through said collection port; the pushing movement being from the upper position, wherein said collection valve is closed, to the lower position such that a first volume of liquid is forced from said collection chamber through said ingress port, through said pumping tube, and into the entrance of the discharge tube and a second volume of liquid from said collection chamber passes through said ingress port into said lifting chamber; and reciprocating means for reciprocating said pumping tube.
a wet portion for disposition in the liquid including:
a collecting tube defining a collection chamber for collecting the liquid;
said collecting tube including:
an upper end; and a lower end including:
a collection port for ingress of the liquid into said collection chamber; and a collection valve having open and closed positions that open and close said collection port; and a pumping tube for pumping the liquid; said pumping tube defining a lifting chamber; said pumping tube having a longitudinal axis and including:
an upper end including an egress orifice for egress of lifted liquid into the discharge tube;
a lower end including:
an ingress port for ingress of liquid from said collection chamber; and an ingress valve having open and closed positions that open and close said ingress port; said pumping tube adapted for reciprocating, longitudinal, sealed, and sliding lifting and pushing movements with the discharge tube and with said collecting tube; the lifting movement being from a lower position, wherein said pumping tube lower end is within said collecting tube and distal the entrance of the discharge tube and said ingress valve is closed, to an upper position, wherein said pumping tube lower end is proximal the entrance of the discharge tube, such that liquid within said lifting chamber is lifted into the entrance of the discharge tube and liquid flows into said collection chamber through said collection port; the pushing movement being from the upper position, wherein said collection valve is closed, to the lower position such that a first volume of liquid is forced from said collection chamber through said ingress port, through said pumping tube, and into the entrance of the discharge tube and a second volume of liquid from said collection chamber passes through said ingress port into said lifting chamber; and reciprocating means for reciprocating said pumping tube.
2. The submersible pump of claim 1 wherein:
said pumping tube is adapted to displace a volume of said collection chamber during the pushing movement of approximately twice the volume of liquid lifted into the entrance of the discharge tube during the lifting movement.
said pumping tube is adapted to displace a volume of said collection chamber during the pushing movement of approximately twice the volume of liquid lifted into the entrance of the discharge tube during the lifting movement.
3. The submersible pump of claim 1 wherein:
the first volume of liquid is approximately equal to the second volume of liquid.
the first volume of liquid is approximately equal to the second volume of liquid.
4. The submersible pump of claim 1 wherein:
said collection valve is closed by gravity.
said collection valve is closed by gravity.
5. The submersible pump of claim 1 wherein:
said ingress valve is closed by gravity
said ingress valve is closed by gravity
6. The submersible pump of claim 1 wherein:
said collection valve is closed by gravity; and said ingress valve is closed by gravity.
said collection valve is closed by gravity; and said ingress valve is closed by gravity.
7. The submersible pump of claim 1 wherein:
said reciprocating means comprising:
a pressurized gas source;
a casing assembly including:
a casing tube connected to the discharge tube; said casing tube having a longitudinal axis; and gas valve means connected to said casing tube and to said pressurized gas source for receiving pressurized gas therefrom; said gas valve means movable between a first valve position and a second valve position; and a piston assembly including:
a piston tube connected to said pumping tube for reciprocating said pumping tube; said piston tube having a longitudinal axis and disposed in co-axial relationship to said casing tube; and an annular piston including:
a first radial wall connected to said piston tube;
a second radial wall in sealed sliding contact with said casing tube above said gas seal;
an upper surface; and a lower lateral face; said piston assembly adapted for reciprocating, longitudinal, sealed, and sliding movements with said casing tube including a lifting movement between a lower position and a higher position whereby said pumping tube is lifted and a pushing movement between the higher position and the lower position whereby said pumping tube is loaded; and wherein: said gas valve means in the first valve position directs pressurized gas against said lower lateral face of said piston in the lower position to push said piston assembly to the higher position.
said reciprocating means comprising:
a pressurized gas source;
a casing assembly including:
a casing tube connected to the discharge tube; said casing tube having a longitudinal axis; and gas valve means connected to said casing tube and to said pressurized gas source for receiving pressurized gas therefrom; said gas valve means movable between a first valve position and a second valve position; and a piston assembly including:
a piston tube connected to said pumping tube for reciprocating said pumping tube; said piston tube having a longitudinal axis and disposed in co-axial relationship to said casing tube; and an annular piston including:
a first radial wall connected to said piston tube;
a second radial wall in sealed sliding contact with said casing tube above said gas seal;
an upper surface; and a lower lateral face; said piston assembly adapted for reciprocating, longitudinal, sealed, and sliding movements with said casing tube including a lifting movement between a lower position and a higher position whereby said pumping tube is lifted and a pushing movement between the higher position and the lower position whereby said pumping tube is loaded; and wherein: said gas valve means in the first valve position directs pressurized gas against said lower lateral face of said piston in the lower position to push said piston assembly to the higher position.
8. The submersible pump of claim 7 wherein:
said gas valve means in the first valve position exhausts gas from above said piston during the lifting movement.
said gas valve means in the first valve position exhausts gas from above said piston during the lifting movement.
9. The submersible pump of claim 8 wherein:
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
10. The submersible pump of claim 8 wherein:
said gas valve means in the second valve position directs pressurized gas against said upper lateral face of said piston in the upper position to push said piston assembly to the lower position.
said gas valve means in the second valve position directs pressurized gas against said upper lateral face of said piston in the upper position to push said piston assembly to the lower position.
11. The submersible pump of claim 10 wherein:
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
12. The submersible pump of claim 7 wherein:
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
13. The submersible pump of claim 12 wherein:
said gas valve means in the second valve position directs pressurized gas against said upper lateral face of said piston in the upper position to push said piston assembly to the lower position.
said gas valve means in the second valve position directs pressurized gas against said upper lateral face of said piston in the upper position to push said piston assembly to the lower position.
14. The submersible pump of claim 7 wherein:
said gas valve means in the second valve position directs pressurized gas against said upper lateral face of said piston in the upper position to push said piston assembly to the lower position.
said gas valve means in the second valve position directs pressurized gas against said upper lateral face of said piston in the upper position to push said piston assembly to the lower position.
15. The submersible pump of claim 14 wherein:
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
said gas valve means in the second valve position exhausts gas from below said piston during the pushing movement.
16. The submersible pump of claim 7 wherein:
said gas valve means includes:
a valve including a movable valve member; and wherein said piston assembly moves said movable valve to the first valve position by pushing movement of said piston assembly and wherein piston assembly moves said movable valve to the second valve position by lifting movement of said piston assembly.
said gas valve means includes:
a valve including a movable valve member; and wherein said piston assembly moves said movable valve to the first valve position by pushing movement of said piston assembly and wherein piston assembly moves said movable valve to the second valve position by lifting movement of said piston assembly.
17. The pump of claim 1 wherein:
said reciprocating means comprises:
a pressurized gas source for supplying a pressurized gas;
a casing assembly including:
a casing tube connected to the discharge tube; said casing tube having a longitudinal axis;
one or more gas seals connected to said casing tube; and gas valve means connected to said casing tube and to said pressurized gas source for receiving pressurized gas therefrom; said gas valve means movable between a first valve position and a second valve position; and a piston assembly including:
a piston tube connected to said pumping tube for reciprocating said pumping tube; said piston tube having a longitudinal axis and disposed in co-axial relationship to said casing tube; and a plurality of annular pistons; each said piston including:
a first radial wall connected to said piston tube;
a second radial wall in sealed sliding contact with said casing tube above said gas seal;
an upper lateral face; and a lower lateral face; said piston assembly adapted for reciprocating, longitudinal, sealed, and sliding movements with said casing tube between a lower position and a higher position; and wherein at least one said gas seal provides sealed sliding contact with said piston tube between said pistons; and said gas valve means in the first valve position directs pressurized gas against said lower lateral faces of said pistons in the lower position to lift said piston assembly to the higher position.
said reciprocating means comprises:
a pressurized gas source for supplying a pressurized gas;
a casing assembly including:
a casing tube connected to the discharge tube; said casing tube having a longitudinal axis;
one or more gas seals connected to said casing tube; and gas valve means connected to said casing tube and to said pressurized gas source for receiving pressurized gas therefrom; said gas valve means movable between a first valve position and a second valve position; and a piston assembly including:
a piston tube connected to said pumping tube for reciprocating said pumping tube; said piston tube having a longitudinal axis and disposed in co-axial relationship to said casing tube; and a plurality of annular pistons; each said piston including:
a first radial wall connected to said piston tube;
a second radial wall in sealed sliding contact with said casing tube above said gas seal;
an upper lateral face; and a lower lateral face; said piston assembly adapted for reciprocating, longitudinal, sealed, and sliding movements with said casing tube between a lower position and a higher position; and wherein at least one said gas seal provides sealed sliding contact with said piston tube between said pistons; and said gas valve means in the first valve position directs pressurized gas against said lower lateral faces of said pistons in the lower position to lift said piston assembly to the higher position.
18, The submersible pump of claim 17 wherein;
said gas valve means in the first valve position exhausts gas above said pistons during the lifting movement.
said gas valve means in the first valve position exhausts gas above said pistons during the lifting movement.
19. The submersible pump of claim 18 wherein:
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
20. The submersible pump of claim 18 wherein:
said gas valve means in the second valve position directs pressurized gas against said upper lateral faces of said pistons in the upper position to push said piston assembly to the lower position.
said gas valve means in the second valve position directs pressurized gas against said upper lateral faces of said pistons in the upper position to push said piston assembly to the lower position.
21. The submersible pump of claim 20 wherein:
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
22. The submersible pump of claim 17 wherein:
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
23. The submersible pump of claim 22 wherein:
said gas valve means in the second valve position directs pressurized gas against said upper lateral faces of said pistons in the upper position to push said piston assembly to the lower position.
said gas valve means in the second valve position directs pressurized gas against said upper lateral faces of said pistons in the upper position to push said piston assembly to the lower position.
24. The submersible pump of claim 17 wherein:
said gas valve means in the second valve position directs pressurized gas against said upper lateral faces of said pistons in the upper position to push said piston assembly to the lower position.
said gas valve means in the second valve position directs pressurized gas against said upper lateral faces of said pistons in the upper position to push said piston assembly to the lower position.
25. The submersible pump of claim 24 wherein:
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
said gas valve means in the second valve position exhausts gas below said pistons during the pushing movement.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45801903P | 2003-05-31 | 2003-05-31 | |
| US60/458,019 | 2003-05-31 | ||
| US10/854,862 US7275590B2 (en) | 2004-05-27 | 2004-05-27 | Submersible pump |
| US10/854,862 | 2004-05-27 | ||
| PCT/US2004/017054 WO2005001231A2 (en) | 2003-05-31 | 2004-05-28 | Submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2568230A1 true CA2568230A1 (en) | 2005-01-06 |
| CA2568230C CA2568230C (en) | 2010-09-21 |
Family
ID=33555084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2568230A Expired - Fee Related CA2568230C (en) | 2003-05-31 | 2004-05-28 | Submersible pump |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA2568230C (en) |
| MX (1) | MXPA06013669A (en) |
| WO (1) | WO2005001231A2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089322A (en) * | 1996-12-02 | 2000-07-18 | Kelley & Sons Group International, Inc. | Method and apparatus for increasing fluid recovery from a subterranean formation |
| US5915475A (en) * | 1997-07-22 | 1999-06-29 | Wells; Edward A. | Down hole well pumping apparatus and method |
-
2004
- 2004-05-28 MX MXPA06013669A patent/MXPA06013669A/en active IP Right Grant
- 2004-05-28 WO PCT/US2004/017054 patent/WO2005001231A2/en active Application Filing
- 2004-05-28 CA CA2568230A patent/CA2568230C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005001231A3 (en) | 2005-03-24 |
| CA2568230C (en) | 2010-09-21 |
| WO2005001231A2 (en) | 2005-01-06 |
| MXPA06013669A (en) | 2007-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170529 |