CA2516341A1 - An agitating apparatus and method for enhancing production in progressive cavity pumps - Google Patents
An agitating apparatus and method for enhancing production in progressive cavity pumps Download PDFInfo
- Publication number
- CA2516341A1 CA2516341A1 CA002516341A CA2516341A CA2516341A1 CA 2516341 A1 CA2516341 A1 CA 2516341A1 CA 002516341 A CA002516341 A CA 002516341A CA 2516341 A CA2516341 A CA 2516341A CA 2516341 A1 CA2516341 A1 CA 2516341A1
- Authority
- CA
- Canada
- Prior art keywords
- borehole
- rotatable shaft
- drive member
- progressive cavity
- housing
- 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 claims abstract description 26
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 description 7
- 239000000295 fuel oil Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
- F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function
-
- 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
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An agitating apparatus for enhancing production in progressive cavity pumps which has a rotatable shaft having a first end and a second end. A borehole is provided in the second end. An auger flyte extends along a portion of the rotatable shaft. A drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft. A movable sleeve with a biasing spring is positioned over first end of the rotatable shaft such that moveable sleeve is biased into covering the drive member when inserted into the borehole at the first end of the rotatable shaft. A housing with slotted openings is provided which is adapted to be secured to a housing of the progressive cavity pump.
Description
TITLE OF THE INVENTION:
s An Agitating Apparatus and Method for Enhancing Production in Progressive Cavity Pumps.
FIELD OF THE INVENTION
The present invention relates an agitating apparatus and method for enhancing 1 o production by mixing produced sand with produced oil and water to form a slurry which is acceptable for progressive cavity pumps to operate effectively.
BACKGROUND OF THE INVENTION
In eastern Alberta and western Saskatchewan, heavy oil is produced in large 15 quantities. There are thousands of producing wells, and more are drilled each year. Heavy oil contains brine (salt water) and sand when produced. Once on surface, the various components tend to separate on their own. It is in the wellbore that the components cause problems when they separate.
s An Agitating Apparatus and Method for Enhancing Production in Progressive Cavity Pumps.
FIELD OF THE INVENTION
The present invention relates an agitating apparatus and method for enhancing 1 o production by mixing produced sand with produced oil and water to form a slurry which is acceptable for progressive cavity pumps to operate effectively.
BACKGROUND OF THE INVENTION
In eastern Alberta and western Saskatchewan, heavy oil is produced in large 15 quantities. There are thousands of producing wells, and more are drilled each year. Heavy oil contains brine (salt water) and sand when produced. Once on surface, the various components tend to separate on their own. It is in the wellbore that the components cause problems when they separate.
2 o In the past, heavy oil was produced with pumpjacks. The pumpjacks drove a plunger style pump that would fill the tubing on the downstroke and pull to surface on the upstroke. The pumpjack was a slow but gentle pump.
In order to make heavy oil wells more cost effective, the progressive cavity pump 2 s (PCP) was developed. The PCP consists of a rotor that turns inside of a stator at the producing formation, driven by a motor at the surface. The PCP is a very aggressive pump and is efficient at removing fluids from the formation quickly. However, there is a cost to that efficiency. Due to the viscous nature of heavy oil, it tends to drag out unconsolidated sand and water when forced to move too quickly. The oil/water/sand mixture is not 3 o produced homogeneously. When sand is produced with slugs of water, some of it tends to drop out. Over time, the sand can build up to the point that it prevents the PCP from working. At that point, a service rig is often required to get the well producing again, and that can be a very expensive venture.
s SUMMARY OF THE INVENTION
What is required is a method of keeping the sand in suspension in order that it can be propelled through the progressive cavity pump.
According to the invention there is provided an agitating apparatus for enhancing 1 o production in progressive cavity pumps which includes a rotatable shaft having a first end and a second end. A borehole is provided in the second end. An auger flyte extends along a portion of the rotatable shaft. A drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft. A movable 1 s sleeve with a biasing spring is positioned over first end of the rotatable shaft such that moveable sleeve is biased into covering the drive member when inserted into the borehole at the first end of the rotatable shaft. A housing with slotted openings is provided which is adapted to be secured to a housing of the progressive cavity pump.
2 o BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
2 s FIGURE 1 is a side elevation view in section, of the agitating apparatus constructed in accordance with the teachings of the present invention.
FIGURE 2 is an exploded view in section, of the agitating apparatus illustrated in FIGURE 1.
FIGURE 3 is a top plan view in section, of the drive member of the agitating apparatus illustrated in FIGURE 1.
FIGURE 4 is top plan view in section, of the first end of the rotatable shaft of the apparatus illustrated in FIGURE 1.
s FIGURE 5 is an end view of the apparatus illustrated in FIGURE 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, an agitating apparatus for enhancing production in progressive cavity pumps generally identified by reference numeral 10, will now be described 1 o with reference to FIGURES 1 through 5.
Structure and Relationship of Parts:
Referring to FIGURE 1, there is illustrated an apparatus 10 for enhancing 1 s production, including a rotatable shaft 12 having a first end 14 and a second end 16. A
borehole 18 is provided at first end 14 of rotatable shaft 12. An auger flyte 20 extends along a portion of rotatable shaft 12, with wear plates 21 provided on rotatable shaft 12 above and below auger flyte 20. Wear plates 21, which are mounted on steel plates 23, act to support and center shaft 12, and to prolong the service life of apparatus 10. Steel plate 2 0 23 is shown in FIGURE 5. A drive member 22 is provided which has a first end 24 adapted to be secured to the rotor 26 of a progressive cavity pump 28, and a second end 30 adapted to be telescopically inserted into borehole 18 at first end 14 of rotatable shaft 12.
Drive member 22 is of a length less than the depth of borehole 18 at first end 14 of rotatable shaft 12 such that drive member 22 is seated in borehole 18 but does not reach 2 s the end of borehole 18. As such, drive member 22 is able to fit within borehole 18, but is not resting on shaft 12 once seated, to ensure that the weight of rotor 26 is not carried by agitating apparatus. As depicted, referring to FIGURE 3, drive member 22 is hexagonally sided and, referring to FIGURE 4, borehole 18 is also hexagonally sided so as to receive drive member 22, where the diameter of drive member 22 is less than the inner diameter of borehole 18, such that they fit together unimpeded, but great enough that rotating one rotates the other. It will be appreciated that while the illustrated embodiment show a hexagonally sided borehole 18 and drive member 22, other shapes can also be used so long as the borehole circumferential shape compliments the circumferential shape of the drive member 22. Referring to FIGURE 2, a movable sleeve 32 with a biasing spring 34 is positioned over first end 14 of rotatable shaft 12 such that moveable sleeve 32 is biased into covering drive member 22 when inserted into borehole 18. A stopper (not shown) prevents moveable sleeve 32 from being pushed off shaft 12. Sleeve 32 allows 1 o borehole 18 and drive member 22 to self align as rotor 26 is lowered. Once drive member 22 is inserted into borehole 18, sleeve 32 pops up and allows shaft 12 to turn in unison with rotor 26. Referring to FIGURE 1, there is also a housing 36 adapted to be secured to the housing 38 of progressive cavity pump 28. For example, each may be threaded and held together using a threaded collar 39. Since housing 36 has a wider diameter than i5 housing 38 because of shaft 12, the top is tapered to the appropriate diameter. Housing 36 is provided with slotted openings 40 to allow for the flow of water and fluid into apparatus 10.
Operation;
The use and operation of agitating apparatus for enhancing production in progressive 2 o cavity pumps 10 will now be described with reference to FIGURE 1.
Referring to FIGURE
1, agitating apparatus 10 as described above is secured to rotor 26 of progressive cavity pump 28 via first end 24 of drive member 22. Second end 30 of drive member is telescopically inserted into borehole 18 at first end 14 of rotatable shaft 12. Once drive member 22 is inserted into borehole 18, sleeve 32 pops up and allows shaft 12 to turn in unison with 25 rotor 26. Rotation of shaft 12 with auger flyte 20 during operation agitates and mixes fluids so as to keep sands in fluids in suspension and pushes them upward toward progressive cavity pump 28.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that s there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
In order to make heavy oil wells more cost effective, the progressive cavity pump 2 s (PCP) was developed. The PCP consists of a rotor that turns inside of a stator at the producing formation, driven by a motor at the surface. The PCP is a very aggressive pump and is efficient at removing fluids from the formation quickly. However, there is a cost to that efficiency. Due to the viscous nature of heavy oil, it tends to drag out unconsolidated sand and water when forced to move too quickly. The oil/water/sand mixture is not 3 o produced homogeneously. When sand is produced with slugs of water, some of it tends to drop out. Over time, the sand can build up to the point that it prevents the PCP from working. At that point, a service rig is often required to get the well producing again, and that can be a very expensive venture.
s SUMMARY OF THE INVENTION
What is required is a method of keeping the sand in suspension in order that it can be propelled through the progressive cavity pump.
According to the invention there is provided an agitating apparatus for enhancing 1 o production in progressive cavity pumps which includes a rotatable shaft having a first end and a second end. A borehole is provided in the second end. An auger flyte extends along a portion of the rotatable shaft. A drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft. A movable 1 s sleeve with a biasing spring is positioned over first end of the rotatable shaft such that moveable sleeve is biased into covering the drive member when inserted into the borehole at the first end of the rotatable shaft. A housing with slotted openings is provided which is adapted to be secured to a housing of the progressive cavity pump.
2 o BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
2 s FIGURE 1 is a side elevation view in section, of the agitating apparatus constructed in accordance with the teachings of the present invention.
FIGURE 2 is an exploded view in section, of the agitating apparatus illustrated in FIGURE 1.
FIGURE 3 is a top plan view in section, of the drive member of the agitating apparatus illustrated in FIGURE 1.
FIGURE 4 is top plan view in section, of the first end of the rotatable shaft of the apparatus illustrated in FIGURE 1.
s FIGURE 5 is an end view of the apparatus illustrated in FIGURE 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, an agitating apparatus for enhancing production in progressive cavity pumps generally identified by reference numeral 10, will now be described 1 o with reference to FIGURES 1 through 5.
Structure and Relationship of Parts:
Referring to FIGURE 1, there is illustrated an apparatus 10 for enhancing 1 s production, including a rotatable shaft 12 having a first end 14 and a second end 16. A
borehole 18 is provided at first end 14 of rotatable shaft 12. An auger flyte 20 extends along a portion of rotatable shaft 12, with wear plates 21 provided on rotatable shaft 12 above and below auger flyte 20. Wear plates 21, which are mounted on steel plates 23, act to support and center shaft 12, and to prolong the service life of apparatus 10. Steel plate 2 0 23 is shown in FIGURE 5. A drive member 22 is provided which has a first end 24 adapted to be secured to the rotor 26 of a progressive cavity pump 28, and a second end 30 adapted to be telescopically inserted into borehole 18 at first end 14 of rotatable shaft 12.
Drive member 22 is of a length less than the depth of borehole 18 at first end 14 of rotatable shaft 12 such that drive member 22 is seated in borehole 18 but does not reach 2 s the end of borehole 18. As such, drive member 22 is able to fit within borehole 18, but is not resting on shaft 12 once seated, to ensure that the weight of rotor 26 is not carried by agitating apparatus. As depicted, referring to FIGURE 3, drive member 22 is hexagonally sided and, referring to FIGURE 4, borehole 18 is also hexagonally sided so as to receive drive member 22, where the diameter of drive member 22 is less than the inner diameter of borehole 18, such that they fit together unimpeded, but great enough that rotating one rotates the other. It will be appreciated that while the illustrated embodiment show a hexagonally sided borehole 18 and drive member 22, other shapes can also be used so long as the borehole circumferential shape compliments the circumferential shape of the drive member 22. Referring to FIGURE 2, a movable sleeve 32 with a biasing spring 34 is positioned over first end 14 of rotatable shaft 12 such that moveable sleeve 32 is biased into covering drive member 22 when inserted into borehole 18. A stopper (not shown) prevents moveable sleeve 32 from being pushed off shaft 12. Sleeve 32 allows 1 o borehole 18 and drive member 22 to self align as rotor 26 is lowered. Once drive member 22 is inserted into borehole 18, sleeve 32 pops up and allows shaft 12 to turn in unison with rotor 26. Referring to FIGURE 1, there is also a housing 36 adapted to be secured to the housing 38 of progressive cavity pump 28. For example, each may be threaded and held together using a threaded collar 39. Since housing 36 has a wider diameter than i5 housing 38 because of shaft 12, the top is tapered to the appropriate diameter. Housing 36 is provided with slotted openings 40 to allow for the flow of water and fluid into apparatus 10.
Operation;
The use and operation of agitating apparatus for enhancing production in progressive 2 o cavity pumps 10 will now be described with reference to FIGURE 1.
Referring to FIGURE
1, agitating apparatus 10 as described above is secured to rotor 26 of progressive cavity pump 28 via first end 24 of drive member 22. Second end 30 of drive member is telescopically inserted into borehole 18 at first end 14 of rotatable shaft 12. Once drive member 22 is inserted into borehole 18, sleeve 32 pops up and allows shaft 12 to turn in unison with 25 rotor 26. Rotation of shaft 12 with auger flyte 20 during operation agitates and mixes fluids so as to keep sands in fluids in suspension and pushes them upward toward progressive cavity pump 28.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that s there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims (10)
1. An agitating apparatus for enhancing production of a progressive cavity pump comprising:
a rotatable shaft having a first end and a second end;
a borehole is provided at the first end;
an auger flyte extends along a portion of the rotatable shaft;
a drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft;
a movable sleeve with a biasing spring is positioned over the first end of the rotatable shaft such that the moveable sleeve is biased into covering the drive member when inserted into the borehole; and a housing overlying rotatable shaft which is adapted to be secured to a housing of the progressive cavity pump.
a rotatable shaft having a first end and a second end;
a borehole is provided at the first end;
an auger flyte extends along a portion of the rotatable shaft;
a drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft;
a movable sleeve with a biasing spring is positioned over the first end of the rotatable shaft such that the moveable sleeve is biased into covering the drive member when inserted into the borehole; and a housing overlying rotatable shaft which is adapted to be secured to a housing of the progressive cavity pump.
2. The apparatus described in claim 1, wherein the drive member is of a length less than the depth of the borehole at the first end of the rotatable shaft such that the drive member is seated in the borehole but does not reach an end of the borehole.
3. The apparatus as described in claim 1, wherein wear plates are provided on rotatable shaft above and below auger flyte.
4. The apparatus as described in claim 1 wherein the drive member is hexagonally sided and the borehole is also hexagonally sided so as to receive the drive member.
5. The apparatus as described in claim 1 wherein the housing is provided with slotted openings to allow for the flow of water and fluid into the apparatus.
6. A method for enhancing production in progressive cavity pumps, comprising:
firstly providing an agitating apparatus for enhancing production in progressive cavity pumps having a rotatable shaft having a first end and a second end;
a borehole is provided at the first end;
an auger flyte extends along a portion of the rotatable shaft;
a drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft;
a movable sleeve with a biasing spring is positioned over the first end of the rotatable shaft such that moveable sleeve is biased into covering the drive member when inserted into the borehole;
a housing overlying the rotatable shaft which is adapted to be secured to a housing of a progressive cavity pump;
secondly providing a progressive cavity pump having a rotor and a stator;
and thirdly, securing the apparatus to the progressive cavity pump.
firstly providing an agitating apparatus for enhancing production in progressive cavity pumps having a rotatable shaft having a first end and a second end;
a borehole is provided at the first end;
an auger flyte extends along a portion of the rotatable shaft;
a drive member is provided which has a first end adapted to be secured to a rotor of a progressive cavity pump, and a second end adapted to be telescopically inserted into the borehole at the first end of the rotatable shaft;
a movable sleeve with a biasing spring is positioned over the first end of the rotatable shaft such that moveable sleeve is biased into covering the drive member when inserted into the borehole;
a housing overlying the rotatable shaft which is adapted to be secured to a housing of a progressive cavity pump;
secondly providing a progressive cavity pump having a rotor and a stator;
and thirdly, securing the apparatus to the progressive cavity pump.
7. The apparatus described in claim 6, wherein the drive member is of a length less than the depth of the borehole at the first end of the rotatable shaft such that the drive member is seated in the borehole but does not reach an end of the borehole.
8. The apparatus as described in claim 6, wherein wear plates are provided on rotatable shaft above and below auger flyte.
9. The apparatus as described in claim 6 wherein the drive member is hexagonally sided and the borehole is hexagonally sided so as to receive the drive member.
10. The apparatus as described in claim 6 wherein the housing is provided with slotted openings to allow for the flow of water and fluid into the apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002516341A CA2516341A1 (en) | 2005-07-29 | 2005-07-29 | An agitating apparatus and method for enhancing production in progressive cavity pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002516341A CA2516341A1 (en) | 2005-07-29 | 2005-07-29 | An agitating apparatus and method for enhancing production in progressive cavity pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2516341A1 true CA2516341A1 (en) | 2007-01-29 |
Family
ID=37696172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002516341A Abandoned CA2516341A1 (en) | 2005-07-29 | 2005-07-29 | An agitating apparatus and method for enhancing production in progressive cavity pumps |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2516341A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7770656B2 (en) | 2007-10-03 | 2010-08-10 | Pine Tree Gas, Llc | System and method for delivering a cable downhole in a well |
| US8079753B2 (en) | 2008-11-18 | 2011-12-20 | 1350363 Alberta Ltd. | Agitator tool for progressive cavity pump |
| CN105625997A (en) * | 2016-04-01 | 2016-06-01 | 北京双良石油技术有限公司 | Retractable elastic pump touch mechanism |
-
2005
- 2005-07-29 CA CA002516341A patent/CA2516341A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7770656B2 (en) | 2007-10-03 | 2010-08-10 | Pine Tree Gas, Llc | System and method for delivering a cable downhole in a well |
| US7832468B2 (en) | 2007-10-03 | 2010-11-16 | Pine Tree Gas, Llc | System and method for controlling solids in a down-hole fluid pumping system |
| US8167052B2 (en) | 2007-10-03 | 2012-05-01 | Pine Tree Gas, Llc | System and method for delivering a cable downhole in a well |
| US8079753B2 (en) | 2008-11-18 | 2011-12-20 | 1350363 Alberta Ltd. | Agitator tool for progressive cavity pump |
| CN105625997A (en) * | 2016-04-01 | 2016-06-01 | 北京双良石油技术有限公司 | Retractable elastic pump touch mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |