CA2258237A1 - Hydraulic submersible bottom pump actuator - Google Patents
Hydraulic submersible bottom pump actuator Download PDFInfo
- Publication number
- CA2258237A1 CA2258237A1 CA002258237A CA2258237A CA2258237A1 CA 2258237 A1 CA2258237 A1 CA 2258237A1 CA 002258237 A CA002258237 A CA 002258237A CA 2258237 A CA2258237 A CA 2258237A CA 2258237 A1 CA2258237 A1 CA 2258237A1
- Authority
- CA
- Canada
- Prior art keywords
- hydraulic
- gland
- port
- actuator
- 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.)
- Abandoned
Links
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
- F04B47/06—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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A uniquely designed hydraulic cylinder adapted to a conventional oil well, bottom hole pump. This cylinder employs separate confined hydraulic fluid supply for the gland port and the end port which allows the hydraulic plunger to actuate the BHP
plunger and traveling valve by alternately powering the port supplies until they have achieved their full travel. The automatic repetitive action of the actuator is achieved with pressure sensitive supply relays that reverse the port flow when the pump has reached its' top stroke or bottom stroke and causes the hydraulic supply to pressure up. These controls are mounted on the surface hydraulic supply.
plunger and traveling valve by alternately powering the port supplies until they have achieved their full travel. The automatic repetitive action of the actuator is achieved with pressure sensitive supply relays that reverse the port flow when the pump has reached its' top stroke or bottom stroke and causes the hydraulic supply to pressure up. These controls are mounted on the surface hydraulic supply.
Description
TEM File No. 180.2 TITLE: HYDRAULIC SUBMERSIBLE BOTTOM PUMP ACTUATOR
The present invention relates to a submersible pump arrangement which hydraulically actuates a conventional oil field bottom hole pump, and in particular to a cylinder, concentric gland port and gland packing design which allows separate and independent hydraulic application to each port.
The advent of directional and horizontal drilling technology has allowed greater production volumes and drainage to be attained from single well bores. A
conventional oil field bottom hole pump presently operates with a rod string from the pump rod to surface and is reciprocated mechanically, usually with a pump jack. Deviated wells create a variety of problems for conventionally pumped wells, such as rod drag, tubular and rod wear.
Because of these problems, conventional pumping can become very costly, and is generally not used in well bore deviations exceeding 30 degrees from vertical.
Another problem with conventional pumping systems is that the stroke length and the rate of reciprocation is limited by the pump jack, thereby limiting the production capacity unless larger equipment is moved in.
US Patent no. 4,925,374 (Carrens), titled "Down Hole Hydraulically Actuated Pump", offers an alternative to the above conventional pumping systems, but suffers from several disadvantages. First, the Carrens actuator is restricted to only a single hydraulic power supply. Second, the actuator exhausts power fluid into the production fluid stream for operation, thus needlessly commingling the power fluid with the production fluid.
Third, Carrens uses a very complex switching valve with small flow channels that may be prone to plugging. Fourth, the actuator and pump appear to be integral and thus not adapted for use with conventional pumps.
What is therefore desired is a novel submersible hydraulic actuator arrangement which overcomes the disadvantages and limitations of conventional arrangements.
Preferably it should be adapted for use with conventional bottom hole pumps, it should operate at any angular deviation, including horizontal, and avoid mechanical failures associated with rod strings. The actuator arrangement should further accommodate any pump stroke length and provide greater reciprocation rates than are attainable with mechanical methods. In particular, the actuator arrangement should use two distinct and separate power supply lines to provide power fluid to both ports of a hydraulic cylinder, thus creating a true double acting hydraulic actuator, and should use a closed hydraulic system to avoid the commingling of power fluid with the produced fluid.
In one aspect the invention provides a double acting hydraulic cylinder actuator assembly for submersible actuation of a conventional bottom hole oil field pump comprising:
The present invention relates to a submersible pump arrangement which hydraulically actuates a conventional oil field bottom hole pump, and in particular to a cylinder, concentric gland port and gland packing design which allows separate and independent hydraulic application to each port.
The advent of directional and horizontal drilling technology has allowed greater production volumes and drainage to be attained from single well bores. A
conventional oil field bottom hole pump presently operates with a rod string from the pump rod to surface and is reciprocated mechanically, usually with a pump jack. Deviated wells create a variety of problems for conventionally pumped wells, such as rod drag, tubular and rod wear.
Because of these problems, conventional pumping can become very costly, and is generally not used in well bore deviations exceeding 30 degrees from vertical.
Another problem with conventional pumping systems is that the stroke length and the rate of reciprocation is limited by the pump jack, thereby limiting the production capacity unless larger equipment is moved in.
US Patent no. 4,925,374 (Carrens), titled "Down Hole Hydraulically Actuated Pump", offers an alternative to the above conventional pumping systems, but suffers from several disadvantages. First, the Carrens actuator is restricted to only a single hydraulic power supply. Second, the actuator exhausts power fluid into the production fluid stream for operation, thus needlessly commingling the power fluid with the production fluid.
Third, Carrens uses a very complex switching valve with small flow channels that may be prone to plugging. Fourth, the actuator and pump appear to be integral and thus not adapted for use with conventional pumps.
What is therefore desired is a novel submersible hydraulic actuator arrangement which overcomes the disadvantages and limitations of conventional arrangements.
Preferably it should be adapted for use with conventional bottom hole pumps, it should operate at any angular deviation, including horizontal, and avoid mechanical failures associated with rod strings. The actuator arrangement should further accommodate any pump stroke length and provide greater reciprocation rates than are attainable with mechanical methods. In particular, the actuator arrangement should use two distinct and separate power supply lines to provide power fluid to both ports of a hydraulic cylinder, thus creating a true double acting hydraulic actuator, and should use a closed hydraulic system to avoid the commingling of power fluid with the produced fluid.
In one aspect the invention provides a double acting hydraulic cylinder actuator assembly for submersible actuation of a conventional bottom hole oil field pump comprising:
an actuator adapter for attaching the assembly to the bottom hole pump, and having a rod wiper and gland packing incorporated to prevent produced fluid from entering the actuator assembly;
a gland end port sub for mounting of the pump's outer barrel to the actuator's hydraulic cylinder, wherein the gland end port sub includes gland end fluid ports and a gland packing below the fluid ports to contain hydraulic fluid from escaping the gland port supply;
a concentric gland port barrel to contain the gland port supply about the cylinder and deliver it to the gland ports; and, a cylinder end port with integral gland port by-pass channels:
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawing, wherein:
Figure 1 is a schematic view partially in vertical cross-section showing an above-ground wellhead, surface hydraulic power unit with automatic controls and hydraulic lines, a production tubing string extending from the wellhead down an oil well to a horizontal portion thereof complete with an API pump seating nipple, a hydraulic submersible bottom hole pump actuator assembly seated into the API pump seating nipple at the pump seating cups, and concentric endless tubing hydraulic lines from the top of the actuator assembly internally up the length of the production tubing to the wellhead;
a gland end port sub for mounting of the pump's outer barrel to the actuator's hydraulic cylinder, wherein the gland end port sub includes gland end fluid ports and a gland packing below the fluid ports to contain hydraulic fluid from escaping the gland port supply;
a concentric gland port barrel to contain the gland port supply about the cylinder and deliver it to the gland ports; and, a cylinder end port with integral gland port by-pass channels:
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawing, wherein:
Figure 1 is a schematic view partially in vertical cross-section showing an above-ground wellhead, surface hydraulic power unit with automatic controls and hydraulic lines, a production tubing string extending from the wellhead down an oil well to a horizontal portion thereof complete with an API pump seating nipple, a hydraulic submersible bottom hole pump actuator assembly seated into the API pump seating nipple at the pump seating cups, and concentric endless tubing hydraulic lines from the top of the actuator assembly internally up the length of the production tubing to the wellhead;
Figure 2 is a cross-sectional side view of a preferred embodiment of the hydraulic submersible bottom hole pump actuator assembly of figure 1 showing a modified conventional bottom hole pump attached thereto; and, Figure 2A is a close-up view of the hydraulic actuator assembly from a pump adapter sub to an endless tubing adapter connection.
T.TST OF EFERENCE NUMERALS IN DRAWINCrS
hydraulic submersible bottom hole pump actuator arrangement 11 production tubing 12 connections of 11 13 API pump seating nipple of 11 14 wellhead hydraulic tubing supply, end port 16 hydraulic tubing supply, gland port 17 surface hydraulic power supply with automatic flow reversal controls conventional bottom hole reciprocating pump 21 suction screen of 20 22 standing valve of 20 23 traveling valve of 20 24 plunger of 20 barrel of 20 26 seating assembly of 20 hydraulic submersible pump actuator 31 actuator - bottom hole pump adapter of 30 31a bottom hole pump discharge ports of 31 31b plunger rod wiper & primary gland packing to seal out produced fluid of 31 31 c secondary gland packing to seal out produced fluid of 31 32 gland packing saver sub of 30 32a lubricant chamber of 32 32b barner seal of 32 32c secondary gland packing to seal hydraulic fluid of 32 33 plunger rod of 30 34 gland end port sub of 30 34a primary gland seal for hydraulic fluid of 34 34b gland ports of 34 34c gland port barrel mount of 34 34d gland port hydraulic cylinder mount of 34 35 gland port barrel of 30 36 actuator hydraulic cylinder of 30 37 hydraulic double acting plunger head with V block seals of 30 38 hydraulic cylinder port end with concentric gland port channels of 30 38a concentric gland port channels 40 concentric endless tubing gland port hydraulic supply of 16 41 concentric endless tubing end port hydraulic supply of 15 42 gland port adapter of 40 43 end port adapter of 41 DESCRTP ION OF P FFER_RRD EMBODIIVVIENT
Figures 1, 2, and 2A show a hydraulic submersible bottom hole pump actuator and conventional oil field bottom hole pump (generally designated by reference numeral 10) within a production tubing string 11 which is itself within the production casing 17 of a well bore. The pump and attached actuator are typically seated within the production tubing using a standard API pump seating nipple 13. The pump and actuator are run into the production tubing and seated into the pump seating nipple with attached endless tubing hydraulic line 16 running to surface. Once landed in the seating nipple a second smaller endless tubing hydraulic line 1 S is run inside of line 16 down to and coupled with the end port adapter 43 of the hydraulic actuator.
At surface the hydraulic lines are sealed from each other to provide separate hydraulic lines to each port of the actuator, line 15 being for the end port and the annulus of lines 15 and 16 for the gland port. The separate hydraulic lines are connected at surface to a manifold and control system built onto a hydraulic power supply 17. Each hydraulic supply line contains a pressure switch and relay connected to an electric switching valve.
When the actuator plunger reaches the end of its' stroke, the hydraulic pressure will increase above the working pressure. This increased pressure will be identified by the respective pressure control switch and an electronic signal will be relayed to the control valve which will reverse the hydraulic flow down the other hydraulic line. The actuator plunger 37 will then travel to the other end of its' stroke where the process is repeated.
Since the actuator plunger rod 33 is connected to the bottom hole pump plunger 24 and traveling valve 23, the bottom hole pump 20 reciprocates as the hydraulic actuator 30 cycles back and forth. A typical hydraulic supply 17 may range from 10-20 gpm, at 1500-3000 PSI.
The hydraulic submersible actuator 30, which is connected to a slightly modified standard oil-field bottom hole pump 20, is an arrangement of the following general components:
a pump adapter 31 for connecting the actuator to the pump and preventing produced fluid from entering the actuator via a built in rod wiper and gland packing 31b, and secondary gland packing 31 c to prevent produced fluid entry;
a gland packing saver sub 32 having a lubricant chamber 32a, a barner seal 32b, and secondary gland packing 32c to facilitate greater gland packing seal life;
a gland end, port sub 34 which connects the gland end port hydraulic supply to the cylinder via gland ports 34b, which contains the primary gland packing 34a to prevent the hydraulic supply from escaping the hydraulic cylinder gland end, and which provides a hydraulic cylinder mount 34d for centering the hydraulic cylinder 36 within the gland port barrel and a gland port barrel mount 34c to connect the gland port supply to the gland ports;
a gland port barrel 3 5 which provides a concentric hydraulic channel to the gland ports 34b outside of the cylinder 36;
a hydraulic cylinder 36 which provides the plunger head stroke area;
a plunger rod 33 which contains a hydraulic plunger head in the actuator end and is attached to plunger 24 and a traveling valve 23 of the bottom hole pump 20 at the other end;
_7_ a hydraulic plunger head 37 containing hydraulic V cup seals to facilitate the containment of hydraulic fluid from either side;
a cylinder end port 38 with concentric gland port by-pass channels 38a which allows gland port hydraulic flow to enter and exit the gland port barrel, the cylinder end port engaging the threaded top of the gland port barrel which centers and supports the cylinder end port;
an external concentric tubing adapter 42 which engages the same threaded connection on top of the gland port barrel, and screws down to and tightens against the top of the hydraulic cylinder end port 38 to connect the external concentric hydraulic tubing line 16 with the gland port barrel 35 and lock down the cylinder end port; and, an internal concentric tubing adapter 43 to couple the inside hydraulic tubing line 1 S to the hydraulic cylinder end port 38, for allowing end port hydraulic fluid to enter and exit the cylinder end port.
The operation of the present hydraulic actuator, and thus the reciprocation of the attached bottom hole pump, is accomplished by providing power fluid to either port supply line. If fluid power is supplied to the end port line, the power fluid pushes the plunger rod head 37 down the hydraulic cylinder 36 to the gland port sub 34. The plunger rod 33, attached to the plunger rod head 37 in the hydraulic actuator 30, is attached to the bottom hole pump plunger 24 and to the bottom hole pump traveling valve 23 in the bottom hole pump 20.
As a result, powering the end port of the actuator pushes the plunger rod and the pump plunger with the traveling valve to the bottom of the pump stroke. At the bottom of the stroke the plunger stalls, forcing the power fluid pressure to increase above normal operating pressure. This increase is detected at the power fluid supply 17, and an _g_ electronic signal is relayed to a valve manifold which switches the power fluid to the gland port line. With power fluid now being applied to the gland port 34, the plunger head, plunger rod, bottom hole pump plunger and traveling valve are forced to travel in the opposite direction until the plunger head reaches the end port and the BHP
plunger reaches the top stroke position of the pump. At the top stroke position the plunger again stalls, forcing the power fluid pressure to increase above the normal working pressure. A
pressure sensor then electronically signals the valve manifold which switches the power supply to the other port which repeats the cycle.
The present hydraulic system does not circulate nor does it allow commingling of power fluid with produced fluid. The separate hydraulic lines alternately function as "supply", when power fluid is applied, and as "return" when power fluid is being applied to the other line. The BHP plunger and traveling valve are thus reciprocated by the actuator, and the fluid produced by this pumping action is discharged from the bottom hole pump discharge ports 31a of the actuator-bottom hole pump adapter sub 31. The discharged production fluid is then carned to surface in the annular area between the production tubing 11 and the gland port hydraulic supply line 16.
T.TST OF EFERENCE NUMERALS IN DRAWINCrS
hydraulic submersible bottom hole pump actuator arrangement 11 production tubing 12 connections of 11 13 API pump seating nipple of 11 14 wellhead hydraulic tubing supply, end port 16 hydraulic tubing supply, gland port 17 surface hydraulic power supply with automatic flow reversal controls conventional bottom hole reciprocating pump 21 suction screen of 20 22 standing valve of 20 23 traveling valve of 20 24 plunger of 20 barrel of 20 26 seating assembly of 20 hydraulic submersible pump actuator 31 actuator - bottom hole pump adapter of 30 31a bottom hole pump discharge ports of 31 31b plunger rod wiper & primary gland packing to seal out produced fluid of 31 31 c secondary gland packing to seal out produced fluid of 31 32 gland packing saver sub of 30 32a lubricant chamber of 32 32b barner seal of 32 32c secondary gland packing to seal hydraulic fluid of 32 33 plunger rod of 30 34 gland end port sub of 30 34a primary gland seal for hydraulic fluid of 34 34b gland ports of 34 34c gland port barrel mount of 34 34d gland port hydraulic cylinder mount of 34 35 gland port barrel of 30 36 actuator hydraulic cylinder of 30 37 hydraulic double acting plunger head with V block seals of 30 38 hydraulic cylinder port end with concentric gland port channels of 30 38a concentric gland port channels 40 concentric endless tubing gland port hydraulic supply of 16 41 concentric endless tubing end port hydraulic supply of 15 42 gland port adapter of 40 43 end port adapter of 41 DESCRTP ION OF P FFER_RRD EMBODIIVVIENT
Figures 1, 2, and 2A show a hydraulic submersible bottom hole pump actuator and conventional oil field bottom hole pump (generally designated by reference numeral 10) within a production tubing string 11 which is itself within the production casing 17 of a well bore. The pump and attached actuator are typically seated within the production tubing using a standard API pump seating nipple 13. The pump and actuator are run into the production tubing and seated into the pump seating nipple with attached endless tubing hydraulic line 16 running to surface. Once landed in the seating nipple a second smaller endless tubing hydraulic line 1 S is run inside of line 16 down to and coupled with the end port adapter 43 of the hydraulic actuator.
At surface the hydraulic lines are sealed from each other to provide separate hydraulic lines to each port of the actuator, line 15 being for the end port and the annulus of lines 15 and 16 for the gland port. The separate hydraulic lines are connected at surface to a manifold and control system built onto a hydraulic power supply 17. Each hydraulic supply line contains a pressure switch and relay connected to an electric switching valve.
When the actuator plunger reaches the end of its' stroke, the hydraulic pressure will increase above the working pressure. This increased pressure will be identified by the respective pressure control switch and an electronic signal will be relayed to the control valve which will reverse the hydraulic flow down the other hydraulic line. The actuator plunger 37 will then travel to the other end of its' stroke where the process is repeated.
Since the actuator plunger rod 33 is connected to the bottom hole pump plunger 24 and traveling valve 23, the bottom hole pump 20 reciprocates as the hydraulic actuator 30 cycles back and forth. A typical hydraulic supply 17 may range from 10-20 gpm, at 1500-3000 PSI.
The hydraulic submersible actuator 30, which is connected to a slightly modified standard oil-field bottom hole pump 20, is an arrangement of the following general components:
a pump adapter 31 for connecting the actuator to the pump and preventing produced fluid from entering the actuator via a built in rod wiper and gland packing 31b, and secondary gland packing 31 c to prevent produced fluid entry;
a gland packing saver sub 32 having a lubricant chamber 32a, a barner seal 32b, and secondary gland packing 32c to facilitate greater gland packing seal life;
a gland end, port sub 34 which connects the gland end port hydraulic supply to the cylinder via gland ports 34b, which contains the primary gland packing 34a to prevent the hydraulic supply from escaping the hydraulic cylinder gland end, and which provides a hydraulic cylinder mount 34d for centering the hydraulic cylinder 36 within the gland port barrel and a gland port barrel mount 34c to connect the gland port supply to the gland ports;
a gland port barrel 3 5 which provides a concentric hydraulic channel to the gland ports 34b outside of the cylinder 36;
a hydraulic cylinder 36 which provides the plunger head stroke area;
a plunger rod 33 which contains a hydraulic plunger head in the actuator end and is attached to plunger 24 and a traveling valve 23 of the bottom hole pump 20 at the other end;
_7_ a hydraulic plunger head 37 containing hydraulic V cup seals to facilitate the containment of hydraulic fluid from either side;
a cylinder end port 38 with concentric gland port by-pass channels 38a which allows gland port hydraulic flow to enter and exit the gland port barrel, the cylinder end port engaging the threaded top of the gland port barrel which centers and supports the cylinder end port;
an external concentric tubing adapter 42 which engages the same threaded connection on top of the gland port barrel, and screws down to and tightens against the top of the hydraulic cylinder end port 38 to connect the external concentric hydraulic tubing line 16 with the gland port barrel 35 and lock down the cylinder end port; and, an internal concentric tubing adapter 43 to couple the inside hydraulic tubing line 1 S to the hydraulic cylinder end port 38, for allowing end port hydraulic fluid to enter and exit the cylinder end port.
The operation of the present hydraulic actuator, and thus the reciprocation of the attached bottom hole pump, is accomplished by providing power fluid to either port supply line. If fluid power is supplied to the end port line, the power fluid pushes the plunger rod head 37 down the hydraulic cylinder 36 to the gland port sub 34. The plunger rod 33, attached to the plunger rod head 37 in the hydraulic actuator 30, is attached to the bottom hole pump plunger 24 and to the bottom hole pump traveling valve 23 in the bottom hole pump 20.
As a result, powering the end port of the actuator pushes the plunger rod and the pump plunger with the traveling valve to the bottom of the pump stroke. At the bottom of the stroke the plunger stalls, forcing the power fluid pressure to increase above normal operating pressure. This increase is detected at the power fluid supply 17, and an _g_ electronic signal is relayed to a valve manifold which switches the power fluid to the gland port line. With power fluid now being applied to the gland port 34, the plunger head, plunger rod, bottom hole pump plunger and traveling valve are forced to travel in the opposite direction until the plunger head reaches the end port and the BHP
plunger reaches the top stroke position of the pump. At the top stroke position the plunger again stalls, forcing the power fluid pressure to increase above the normal working pressure. A
pressure sensor then electronically signals the valve manifold which switches the power supply to the other port which repeats the cycle.
The present hydraulic system does not circulate nor does it allow commingling of power fluid with produced fluid. The separate hydraulic lines alternately function as "supply", when power fluid is applied, and as "return" when power fluid is being applied to the other line. The BHP plunger and traveling valve are thus reciprocated by the actuator, and the fluid produced by this pumping action is discharged from the bottom hole pump discharge ports 31a of the actuator-bottom hole pump adapter sub 31. The discharged production fluid is then carned to surface in the annular area between the production tubing 11 and the gland port hydraulic supply line 16.
Claims
1. A double acting hydraulic submersible actuator for conventional oil field bottom hole pumps utilizing a closed hydraulic system comprising:
a hydraulic actuator - bottom hole pump adapter sub which connects the actuator to the bottom hole pump and excludes produced fluid from entering the actuator;
a gland end port sub to provide hydraulic fluid containment within the actuator, to provide gland end hydraulic ports, and to provide a concentric hydraulic cylinder and gland port barrel mounts;
an end port sub with concentric bypass channels to center the hydraulic cylinder and to segregate the separate concentric channels while allowing free flow in the gland port channel;
a concentric gland port barrel which provides a concentric channel around the hydraulic cylinder that connects the gland port supply to the gland ports;
and, a surface power fluid and control system which automatically reveres the power fluid flow when the plunger rod has attained full extension or retraction.
a hydraulic actuator - bottom hole pump adapter sub which connects the actuator to the bottom hole pump and excludes produced fluid from entering the actuator;
a gland end port sub to provide hydraulic fluid containment within the actuator, to provide gland end hydraulic ports, and to provide a concentric hydraulic cylinder and gland port barrel mounts;
an end port sub with concentric bypass channels to center the hydraulic cylinder and to segregate the separate concentric channels while allowing free flow in the gland port channel;
a concentric gland port barrel which provides a concentric channel around the hydraulic cylinder that connects the gland port supply to the gland ports;
and, a surface power fluid and control system which automatically reveres the power fluid flow when the plunger rod has attained full extension or retraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002258237A CA2258237A1 (en) | 1999-01-08 | 1999-01-08 | Hydraulic submersible bottom pump actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002258237A CA2258237A1 (en) | 1999-01-08 | 1999-01-08 | Hydraulic submersible bottom pump actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2258237A1 true CA2258237A1 (en) | 2000-07-08 |
Family
ID=29554922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002258237A Abandoned CA2258237A1 (en) | 1999-01-08 | 1999-01-08 | Hydraulic submersible bottom pump actuator |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2258237A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7380608B2 (en) | 2004-12-14 | 2008-06-03 | Howard Geier | Pumping water from a natural gas well |
| US8366413B2 (en) | 2008-05-13 | 2013-02-05 | Jason Corbeil | Low rate hydraulic artificial lift |
| US20130205993A1 (en) * | 2012-02-13 | 2013-08-15 | Kenneth J. Stoddard | Adaptive hydraulic cylinder with floating seal interface |
| US10544662B2 (en) | 2016-12-06 | 2020-01-28 | PMC Pumps Inc. | Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore |
| US20240093694A1 (en) * | 2021-04-20 | 2024-03-21 | Ormat Technologies,Inc. | Well pumping apparatus and methods |
-
1999
- 1999-01-08 CA CA002258237A patent/CA2258237A1/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7380608B2 (en) | 2004-12-14 | 2008-06-03 | Howard Geier | Pumping water from a natural gas well |
| US8366413B2 (en) | 2008-05-13 | 2013-02-05 | Jason Corbeil | Low rate hydraulic artificial lift |
| US20130205993A1 (en) * | 2012-02-13 | 2013-08-15 | Kenneth J. Stoddard | Adaptive hydraulic cylinder with floating seal interface |
| US9435359B2 (en) * | 2012-02-13 | 2016-09-06 | Schlumberger Technology Corporation | Adaptive hydraulic cylinder with floating seal interface |
| US10544662B2 (en) | 2016-12-06 | 2020-01-28 | PMC Pumps Inc. | Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore |
| EP3551885A4 (en) * | 2016-12-06 | 2020-07-01 | PMC Pumps Inc. | Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore |
| US20240093694A1 (en) * | 2021-04-20 | 2024-03-21 | Ormat Technologies,Inc. | Well pumping apparatus and methods |
| US11982286B2 (en) * | 2021-04-20 | 2024-05-14 | Ormat Technologies, Inc. | Well pumping apparatus and methods |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8323003B2 (en) | Pressure driven pumping system | |
| CA2651181C (en) | Hydraulically actuated submersible pump | |
| CA1230263A (en) | Travelling valve assembly for a fluid pump | |
| RU2390660C2 (en) | Pump system for tandem motor | |
| US7252148B2 (en) | Plunger actuated pumping system | |
| US3123007A (en) | Well pump | |
| US6755628B1 (en) | Valve body for a traveling barrel pump | |
| US20030037929A1 (en) | Dual displacement pumping system suitable for fluid production from a well | |
| US5915475A (en) | Down hole well pumping apparatus and method | |
| US20120141310A1 (en) | Sand plunger for downhole pump | |
| WO2009092189A1 (en) | External valve type hydraulic self-sealing piston oil well pump | |
| US20070110597A1 (en) | Mechanically actuated diaphragm pumping system | |
| US8079831B2 (en) | Submersible pump having a two-step control hydraulic valve | |
| CA2258237A1 (en) | Hydraulic submersible bottom pump actuator | |
| CN108644088B (en) | Hydraulic slurry pump | |
| US2748712A (en) | Hydraulic pump | |
| CN108691737B (en) | A kind of piston high-density pump of hydraulic-driven | |
| US3865516A (en) | Fluid actuated down-hole pump | |
| AU2020217565B2 (en) | Double hydraulic activated receptacle pump | |
| RU2358156C1 (en) | Installation for simultaneous-separate operation of three reservoirs | |
| CA3196368A1 (en) | Hydraulically actuated double-acting positive displacement pump system for producing fluids from a wellbore | |
| CN113123950B (en) | Submersible electric plunger pump | |
| CN111287923A (en) | Underground grouting pump | |
| CN111335852A (en) | Oil-water separate production pipe column and oil-water separate production method | |
| CN115012866B (en) | Rotary blowout preventer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20030108 |