CA2656654A1 - Mobile progressive cavity pump service unit - Google Patents
Mobile progressive cavity pump service unit Download PDFInfo
- Publication number
- CA2656654A1 CA2656654A1 CA2656654A CA2656654A CA2656654A1 CA 2656654 A1 CA2656654 A1 CA 2656654A1 CA 2656654 A CA2656654 A CA 2656654A CA 2656654 A CA2656654 A CA 2656654A CA 2656654 A1 CA2656654 A1 CA 2656654A1
- Authority
- CA
- Canada
- Prior art keywords
- pump
- stator
- testing
- trailer
- pumps
- 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
- 230000000750 progressive effect Effects 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 30
- 239000012530 fluid Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 description 7
- 238000011179 visual inspection Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/70—Disassembly methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/80—Diagnostics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
A transportable service trailer used for testing and inspection purposes of Progressive Cavity (PC) Pumps at or near a wellsite. A test bench in the trailer which is used to determine pc pump efficiencies and torques. A pc pump handling system used for assembly, disassembly and testing pc pumps. A stator cleaning device used to remove production fluid from stator bore. A small diameter camera which is used to view the stator bore and capture images of said stator bore for analysis. A
racking system used to safely transport new pc pump components and tested components. A system used to provide real time information to production personal and or consultants for analysis and proactive equipment selection.
racking system used to safely transport new pc pump components and tested components. A system used to provide real time information to production personal and or consultants for analysis and proactive equipment selection.
Description
Mobile Progressive Cavity Pump Service Unit Abstract of the Disclosure A transportable service trailer used for testing and inspection purposes of Progressive Cavity (PC) Pumps at or near a wellsite. A test bench in the trailer which is used to determine pc pump efficiencies and torques. A pc pump handling system used for assembly, disassembly and testing pc pumps. A stator cleaning device used to remove production fluid from stator bore. A small diameter camera which is used to view the stator bore and capture images of said stator bore for analysis. A
racking system used to safely transport new pc pump components and tested components. A system used to provide real time information to production personal and or consultants for analysis and proactive equipment selection.
Field of the Invention This invention relates to a portable progressive cavity pump unit for testing and analysis of pc pump at or near a well site. In particular, the apparatus is useful for onsite evaluations of pc pump used in the production of fluids in wellbores.
The service unit will provide information to determine weather a pc pump is suitable to be re-installed into a well.
Background of the Invention PC pumps are a type of artificial lift system used to produce fluid in a wellbore. The pc pump consists of a rotor and a stator. The rotor which is a single external threaded helical gear that rotates eccentrically inside a stationary double internal helical gear of the same minor diameter and twice the pitch length. The rotor is a precision machined from high strength steel and coated with a wear resistant layer, usually chrome. The rotor which is the rotating internal component of the pump is driven by the rod string. The stator consists of a moulded elastomer bonded to the inside of a tube, the stator is attached to the tubing string and remains stationary during operation.
Progressive pump suppliers determine the condition of their product by transporting the pump from the well site to a test facility which includes a pump clean out mechanism, a boroscope camera, and a bench test machine. Once the pump has been tested it is either put in customer stock or delivered back out to the well in which it came from. If the pump does not meet the customer's specifications it is discarded.
This process provides the information necessary to determine the effectiveness of the pump. Unfortunately, this information is not available in a timely manner because the pump has to be picked up and returned from site. The producer often has to run another pump while they wait the pump test information in order to reduce costly rig service charges. It is unfortunate the producer has to leave the well before they receive the pump test information. This information, although late, contains key clues to the cause of well failure. If this information was available sooner it could be used to determine which equipment (pump size, efficiencies, down-hole accessories, etc) should be re-installed in the well.
What is needed is a product that enabled pumps to be cleaned, inspected, and tested on site. This equipment would generate all the information required to determine the condition of the pump so that recommendations could be made before for the next pump install, without having to incur costly transportation time while the PCP is delivered to and from a test facility.
Failure is inevitable during operation and inspection and repair needs to be performed. The current method utilized is; the pc pump that has been removed from a wellbore is to transported to a pc pump testing and service centre were an evaluation can be performed. The rig will either wait for testing results and direction
racking system used to safely transport new pc pump components and tested components. A system used to provide real time information to production personal and or consultants for analysis and proactive equipment selection.
Field of the Invention This invention relates to a portable progressive cavity pump unit for testing and analysis of pc pump at or near a well site. In particular, the apparatus is useful for onsite evaluations of pc pump used in the production of fluids in wellbores.
The service unit will provide information to determine weather a pc pump is suitable to be re-installed into a well.
Background of the Invention PC pumps are a type of artificial lift system used to produce fluid in a wellbore. The pc pump consists of a rotor and a stator. The rotor which is a single external threaded helical gear that rotates eccentrically inside a stationary double internal helical gear of the same minor diameter and twice the pitch length. The rotor is a precision machined from high strength steel and coated with a wear resistant layer, usually chrome. The rotor which is the rotating internal component of the pump is driven by the rod string. The stator consists of a moulded elastomer bonded to the inside of a tube, the stator is attached to the tubing string and remains stationary during operation.
Progressive pump suppliers determine the condition of their product by transporting the pump from the well site to a test facility which includes a pump clean out mechanism, a boroscope camera, and a bench test machine. Once the pump has been tested it is either put in customer stock or delivered back out to the well in which it came from. If the pump does not meet the customer's specifications it is discarded.
This process provides the information necessary to determine the effectiveness of the pump. Unfortunately, this information is not available in a timely manner because the pump has to be picked up and returned from site. The producer often has to run another pump while they wait the pump test information in order to reduce costly rig service charges. It is unfortunate the producer has to leave the well before they receive the pump test information. This information, although late, contains key clues to the cause of well failure. If this information was available sooner it could be used to determine which equipment (pump size, efficiencies, down-hole accessories, etc) should be re-installed in the well.
What is needed is a product that enabled pumps to be cleaned, inspected, and tested on site. This equipment would generate all the information required to determine the condition of the pump so that recommendations could be made before for the next pump install, without having to incur costly transportation time while the PCP is delivered to and from a test facility.
Failure is inevitable during operation and inspection and repair needs to be performed. The current method utilized is; the pc pump that has been removed from a wellbore is to transported to a pc pump testing and service centre were an evaluation can be performed. The rig will either wait for testing results and direction
-2-or install a new or refurbished pc pump without evaluation results. The latter is a reactive approach rather than a proactive approach for pc pump selection.
Summary of the Invention There is a need for field testing and evaluation of pc pump at the well site.
To avoid high rig waiting costs and to prevent reactive pump selections on site pc pump testing and evaluations will reduce rig waiting times and ensure a proactive approach to pc pump selections.
Information gathered from on site testing and evaluations can be submitted in real time to production personal and or consultants who can then make an informative decision on what is need to be done to the well and what pc pump configurations need to be replaced back into the wellbore.
Accordingly, the present invention provides a transportable testing and service system for the evaluation of pc pumps at or near a wellsite:
a trailer or platform for transporting PC pump service equipment to site a region on the trailer or platform for PC pump test bench a region on the trailer or platform for PC pump handling system, assembly, disassembly and testing were the stator can travel axially in either direction.
a region on the trailer or platform for safe transportation of product 1. Means of performing a bench test on a pc pump to determine pump efficiency and torque at or near the wellsite in a mobile unit (Figure 1) i. The test bench (11) consists of a bearing box (12), hydraulic or electric motor (13), stuffing box (14) to prevent fluid leakage,
Summary of the Invention There is a need for field testing and evaluation of pc pump at the well site.
To avoid high rig waiting costs and to prevent reactive pump selections on site pc pump testing and evaluations will reduce rig waiting times and ensure a proactive approach to pc pump selections.
Information gathered from on site testing and evaluations can be submitted in real time to production personal and or consultants who can then make an informative decision on what is need to be done to the well and what pc pump configurations need to be replaced back into the wellbore.
Accordingly, the present invention provides a transportable testing and service system for the evaluation of pc pumps at or near a wellsite:
a trailer or platform for transporting PC pump service equipment to site a region on the trailer or platform for PC pump test bench a region on the trailer or platform for PC pump handling system, assembly, disassembly and testing were the stator can travel axially in either direction.
a region on the trailer or platform for safe transportation of product 1. Means of performing a bench test on a pc pump to determine pump efficiency and torque at or near the wellsite in a mobile unit (Figure 1) i. The test bench (11) consists of a bearing box (12), hydraulic or electric motor (13), stuffing box (14) to prevent fluid leakage,
-3-drive shaft (15), choke valve (16), fluid measuring system (17), torque measuring system (18), fluid storage (19), charge pump (20), hydraulic pump (connected to a power take-off or generator used as prime mover(21).
2. PC Pump handling system which is needed to test the pc pump at or near the wellsite in a mobile unit. A unique rotor and stator handling frame work which is needed to assemble, dissemble and test the pc pump. This handling system uses unconventional means for the stator to travel axially for insertion and removal of the rotor. (Figure 2) ii. The pc pump handling system consists of a stationary beam (1) which is attached to the trailer (4) floor. The traveling beam (2) is attached to the stationary beam (1) through a carriage (3) system on wheels. The traveling beam (2) has been designed to travel along the full length of the stationary (1) beam and extend outside the trailer (4). The traveling beam (2) has traveling (5) and fixed (6) supports that are used to support the stator (7) and provide axial movement of the stator (7). The supports (5, 6) utilize a clamping device (8) to prevent rotation of the stator (7) and fix the stator (7) in position. The stationary beam (1) also has traveling support (9) used to support the rotor (10). The rotor (10) is attached to the test bench (11) and supported by the rotor traveling supports (9), the stator (7) which is attached to the supports (5, 6) on the traveling beam (2). The rotor (10) is rotated with the test bench (11) and the stator (7) travels axially on the traveling beam (2) which provides insertion and removal of the rotor (10) into and out of the stator (7).
3. Means of cleaning the bore of the stator for visual inspection at or near the wellsite in a mobile unit, bore of stator must be cleaned to remove produced fluid for
2. PC Pump handling system which is needed to test the pc pump at or near the wellsite in a mobile unit. A unique rotor and stator handling frame work which is needed to assemble, dissemble and test the pc pump. This handling system uses unconventional means for the stator to travel axially for insertion and removal of the rotor. (Figure 2) ii. The pc pump handling system consists of a stationary beam (1) which is attached to the trailer (4) floor. The traveling beam (2) is attached to the stationary beam (1) through a carriage (3) system on wheels. The traveling beam (2) has been designed to travel along the full length of the stationary (1) beam and extend outside the trailer (4). The traveling beam (2) has traveling (5) and fixed (6) supports that are used to support the stator (7) and provide axial movement of the stator (7). The supports (5, 6) utilize a clamping device (8) to prevent rotation of the stator (7) and fix the stator (7) in position. The stationary beam (1) also has traveling support (9) used to support the rotor (10). The rotor (10) is attached to the test bench (11) and supported by the rotor traveling supports (9), the stator (7) which is attached to the supports (5, 6) on the traveling beam (2). The rotor (10) is rotated with the test bench (11) and the stator (7) travels axially on the traveling beam (2) which provides insertion and removal of the rotor (10) into and out of the stator (7).
3. Means of cleaning the bore of the stator for visual inspection at or near the wellsite in a mobile unit, bore of stator must be cleaned to remove produced fluid for
-4-visual inspection. High volume pump used to circulate water through stator bore and recapturing in containment.
4. Means of visually inspecting the bore of the stator with a camera at or near the wellsite in a mobile unit. Boroscope the stator bore which is a visual inspection device used to determine condition of the stator elastomer
4. Means of visually inspecting the bore of the stator with a camera at or near the wellsite in a mobile unit. Boroscope the stator bore which is a visual inspection device used to determine condition of the stator elastomer
5. Means of supporting new and used pump parts during transportation
6. Communications system to provide real time information back to production personal and or consultants for analysis and proactive equipment selection.
Use of the Invention (Figure 3) 1. Pressurized Pump Wash System - Water & chemical is recycled through the pump to clean any oil and sand from the pump.
2. Boroscope Stator Camera - Enables a visual inspection of the interior of the pump to identify any damage to the pump elastomer 3. Bench Test - If the pump is looks good after the boroscope inspection it will be connected to the bench test machine. The machine imitates down-hole conditions while measuring the efficiency of the pump. If the efficiency meets the customer's requirements the pump will be fit to be reinstalled.
4. Pump Handling Mechanism - Provides a means to safety load and unload the PCP from the trailer.
5. Pump and Accessory Rack - Internal racking system that insures secure transportation of stock pumps and accessories to and from site.
6. Report Station - Computer, printer, and software required to provide the customer with the pump test report while on-site. The trailer will be complete with wireless internet to allow the test reports to be emailed to other interested parties that are not on site.
Use of the Invention (Figure 3) 1. Pressurized Pump Wash System - Water & chemical is recycled through the pump to clean any oil and sand from the pump.
2. Boroscope Stator Camera - Enables a visual inspection of the interior of the pump to identify any damage to the pump elastomer 3. Bench Test - If the pump is looks good after the boroscope inspection it will be connected to the bench test machine. The machine imitates down-hole conditions while measuring the efficiency of the pump. If the efficiency meets the customer's requirements the pump will be fit to be reinstalled.
4. Pump Handling Mechanism - Provides a means to safety load and unload the PCP from the trailer.
5. Pump and Accessory Rack - Internal racking system that insures secure transportation of stock pumps and accessories to and from site.
6. Report Station - Computer, printer, and software required to provide the customer with the pump test report while on-site. The trailer will be complete with wireless internet to allow the test reports to be emailed to other interested parties that are not on site.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2656654A CA2656654A1 (en) | 2009-02-27 | 2009-02-27 | Mobile progressive cavity pump service unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2656654A CA2656654A1 (en) | 2009-02-27 | 2009-02-27 | Mobile progressive cavity pump service unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2656654A1 true CA2656654A1 (en) | 2010-08-27 |
Family
ID=42663731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2656654A Abandoned CA2656654A1 (en) | 2009-02-27 | 2009-02-27 | Mobile progressive cavity pump service unit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2656654A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2021200767B2 (en) * | 2020-02-05 | 2022-07-21 | Petrochina Company Limited | Method and system for operation and maintenance of progressive cavity pump in the vertical well |
-
2009
- 2009-02-27 CA CA2656654A patent/CA2656654A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2021200767B2 (en) * | 2020-02-05 | 2022-07-21 | Petrochina Company Limited | Method and system for operation and maintenance of progressive cavity pump in the vertical well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |