EP0118497B1 - Pompe de forage et de puits a actionnement hydraulique - Google Patents

Pompe de forage et de puits a actionnement hydraulique Download PDF

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Publication number
EP0118497B1
EP0118497B1 EP83902799A EP83902799A EP0118497B1 EP 0118497 B1 EP0118497 B1 EP 0118497B1 EP 83902799 A EP83902799 A EP 83902799A EP 83902799 A EP83902799 A EP 83902799A EP 0118497 B1 EP0118497 B1 EP 0118497B1
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EP
European Patent Office
Prior art keywords
piston
driving unit
barrel
bore
pistons
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.)
Expired
Application number
EP83902799A
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German (de)
English (en)
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EP0118497A4 (fr
EP0118497A1 (fr
Inventor
Donald Ian Guy Macleod
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Individual
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Publication of EP0118497A1 publication Critical patent/EP0118497A1/fr
Publication of EP0118497A4 publication Critical patent/EP0118497A4/fr
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Publication of EP0118497B1 publication Critical patent/EP0118497B1/fr
Expired legal-status Critical Current

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    • 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

Definitions

  • This invention relates to improvements in and relating to a hydraulically actuated bore and well pump, and in particular it relates to pumps of the type in which an actuating mechanism for a pump which is situated beneath the liquid level in a bore or well and is adapted to reciprocate a piston within the submerged pump to raise liquid to the surface.
  • an actuating mechanism for a pump which is situated beneath the liquid level in a bore or well and is adapted to reciprocate a piston within the submerged pump to raise liquid to the surface.
  • I used a submerged pump which, instead of being connected by mechanical coupling means to the actuating mechanism at the surface of the bore or well, I used a hydraulic connection so that pressure in an actuating hose moves the piston in one direction to initiate a pumping action and return was by the weight of water in the system, the balance being such that the pumping action was under control of pressure in a hose which was intermittently applied on one stroke of the pump and on the other stroke of the pump the piston was returned by water pressure for the next stroke.
  • the present invention related generally to these systems but combines the advantages of the foregoing specifications with a double-acting driving system at the bore or well head, and with a double-acting slave system in the submerged pump the object being to provide a simpler and more effective system.
  • the invention utilises two driving pistons in barrels at the head of the bore or well which are connected to the submerged pump in the bore or well, the arrangement resulting in a balanced system of high efficiency.
  • valve means are provided to allow delivery of the liquid, while at the same time preventing the delivered liquid from being returned to the delivery line.
  • these valve means have been actuated by cams or other mechanisms to ensure that they were actuated in phase with the main pumping action.
  • fluid pressure operated flow control means are provided, the valve therefore being operated by fluid pressure rather than by external timing means. This simplifies the system considerably.
  • fluid pressure operated flow control means are known per se, for example from FR-A-606576, they are known only in association with arrangements in which the actuating fluid which operates the pump is the same fluid which is pumped from the well. This is undesirable in many situations, and the present invention overcomes this problem by using a separate delivery line and pressure line.
  • the valve in the present invention is used in such a way that the pressure fluid may be completely isolated from the fluid which is pumped from the well.
  • a hydraulically actuated bore or well pump in which a submerged pump unit comprises a pumping piston in a barrel having a foot valve to admit liquid to the barrel and a check valve at the piston, and in which the said piston is connected to the piston of a slave unit having a barrel coaxial with the first said barrel, the connection being a hollow connecting rod opening through the said pumping piston and the said slave piston and communicating through the second said barrel with a delivery line adapted to discharge liquid to the surface of the bore or well, a driving unit at the bore or well surface comprising piston and barrels adapted to actuate the said slave piston through a pressure line between the said driving unit and the said slave piston, the said driving unit being double-acting to impart both up and down movement to the said pumping piston and slave piston as the said driving unit pistons are reciprocated, and fluid pressure operated flow control means including a valve in the said delivery line to control outflow from the said delivery line to allow the said delivery line to be pressurised for a return stroke.
  • the invention comprises a hydraulically actuated bore or well pump in which a submerged pump comprises a first upper barrel and a second lower barrel with the space of one barrel isolated from the other by a dividing wall, an apertured piston being positioned in each barrel interconnected by a hollow connecting rod so that the space within the upper barrel above the piston therein which forms a slave piston is in communication with the space in the lower barrel on both sides of the piston therein which forms a pumping piston, the hollow connecting rod passing sealingly through the dividing wall, the lower end of the hollow connecting rod being apertured into the space in the lower barrel above the pumping piston therein, characterised in that the aperture through the pumping piston in the lower barrel has a non-return valve to admit fluid from below the pumping piston into the space above the piston and into the hollow connecting rod, a non-return valve being provided in the lower end of the lower barrel, further characterised by a pair of remote barrels at the surface having oppositely acting interconnected driving pistons therein whereby to reciprocate the pistons of
  • a pair of barrels 3-4 are supported in a trough 5, which barrels 3-4 have within them pistons 6-7 interconnected by a rod 8 so arranged that when the rod 8 moves the pistons 6-7 in one direction liquid is displaced from the barrel 3 at one end but when the rod 8 is moved in the opposite direction, liquid is displaced from the barrel 4 at its other end.
  • This unit thus forms a double-acting surface driving unit.
  • a hydraulic motor is used to provide the reciprocation, but a crank or other drive means can be used as illustrated in FIG. 2, or the hydraulic motor may be replaced by pneumatic motor means or by electrical actuating means such as a linear motor.
  • the rod 8 between the pistons is coupled by a mechanical link 9 to a second rod 10 parallel to the first rod 8 and this rod 10 connects a pair of pistons 11-12 of hydraulic motor means 13 in barrels 14-15 arranged parallel to the first pair of barrels 3-4 so that when the second rod 10, which is the driver rod, is actuated, it moves the rod 8 which interconnects the pistons 6-7 which displace the fluid for the driving action.
  • the hydraulic motor means 13 have their pistons 11-12 operated by hydraulic fluid from a suitable supply tank 18 by a hydraulic pump 19 of any usual or approved type, acting through a solenoid controlled valve 20 which is regulated in its position by a pair of micro-switches 21-22 positioned so that, as the mechanical link 9 between the two rods 8-10 reaches the one micro-switch, the direction of movement is reversed, and when it reaches the other micro-switch the direction is again reversed and so on, this then ensuring that the driver pistons 11-12 which have their rod 10 coupled to the rod 8 of the surface driving unit, causes the pistons 6-7 to displace the liquid to cause reciprocation of the driving pistons 6-7.
  • the control of the motor means 13, whether they are hydraulic, pneumatic, or electrical can be controlled to vary the speed of the driving means such as by having a speed variation at the end of one or each stroke to avoid water hammer, and for this purpose a microprocessor 23 can be coupled to the control means.
  • the submerged pump unit has an upper barrel 25 and a lower barrel 26, these barrels 25 and 26 having the same volume displacement as the barrels 3 and 4.
  • the barrel 25 has in it a slave piston 27, the lower barrel 26 having in it a pumping piston 28, the pistons 27 and 28 being interconnected by a hollow connecting rod 30 which passes through a central dividing wall 31 and having a seal 32, and both the upper slave piston 27 and the lower pumping piston 28 have openings therethrough but the lower pumping piston 28 has a check valve 33 to allow only upward flow therethrough.
  • a foot valve 34 allows liquid flow through an opening 35 into the lower part of the chamber 36 formed by the barrel 26 while ports 37 in the hollow connecting rod 30 allows liquid from the hollow connecting rod to flow into the space 38 above the pumping piston 28 in the barrel 26.
  • the pressure line is designated 40 and the delivery line 42.
  • the barrel 3 of the surface driving unit 1 is in communication with the space 44 in the cylinder 25 below the slave piston 27 through an annular space 45 between the sleeve 46 and the barrel 25, while the delivery line 42 connects to the chamber 48 in the barrel 25 above the slave piston 27.
  • the delivery line 42 has in it a valve 50 which is loaded to a closed position by a spring 51 but is urged from the seat 52 in the chamber 53 by pressure on a piston 54 from the pressure line 40 acting through a branch line 55.
  • valve 50 in the chamber 53 in the delivery line 42 is to open outflow from the delivery line 42 during the time that liquid in the pressure line 40 is lifting the pistons 27 and 28 to allow outflow of the liquid being pumped from the discharge point but closes off the flow when the pistons 27 and 28 return after a lifting stroke.
  • piston 27 could have a valve, not shown, to close when return pressure is applied to the slave unit.
  • the drive shown in FIG. 2 can replace the hydraulic motor means 13 and comprises a crank 60 connected by a rod 61 to a cross-head 62 slidable on a guide rod 63 secured to the barrels 3a and 4a, the cross-head 62 being fixed to the rod 8a interconnecting the pistons in the barrels 3a and 4a.
  • the pumping speed of the driving unit is controlled by the crank 60, but as stated earlier, in the form shown in FIG. 1, or in the case of replacement of the hydraulic motor unit by a pneumatic unit or for instance a linear electric motor unit, the pumping speed can be controlled incrementally by use of for instance the microprocessor 23, so that the best pumping rate can be achieved to avoid water hammer or similar problems.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Pompe de forage ou de puits à actionnement hydraulique dans laquelle une unité d'entraînement (1) à la surface du forage ou du puits comprend des pistons interconnectés (6 et 7) disposés de manière à actionner hydrauliquement un piston asservi (27) dans une unité submergée de forage ou de puits (2) par l'intermédiaire d'une conduite hydraulique sous pression (40) et d'une conduite d'alimentation de la pompe (42). L'unité d'entraînement (1), à double action, communique un mouvement de pompage et de retour au piston asservi (27) et à un piston de pompage couplé (28) lorsque l'unité d'entraînement (1) accomplit un mouvement de va-et-vient. Une soupape (50) dans la conduite d'alimentation de la pompe (42) assure le débit de la pompe pendant la course de pompage et permet également à l'unité d'entraînement (1) de mettre sous pression la conduite d'alimentation de la pompe (42) pour la course de retour du piston asservi et du piston de pompage couplés (27, 28). Pour actionner l'unité d'entraînement (1) on préconise l'utilisation d'un moteur hydraulique d'entraînement commandé (13).

Claims (11)

1. Pompe de forage ou de puits à actionnement hydraulique dans une unité de pompage immergée (2) comprenant un piston de pompage (28) dans un cylindre (26) comportant une vanne inférieure (34) pour admettre du liquide dans le cylindre (26) et un clapet de retenue (33) sur le piston (28), et dans laquelle ledit piston (28) est relié au piston (27) d'une unité asservie comportant un cylindre (25) coaxial avec ledit premier cylindre (26), la liaison se faisant au moyen d'une biellette de liaison creuse (30) s'ouvrant à travers ledit piston de pompage (28) et ledit piston asservi (45) et communiquant par l'intermédiaire dudit second cylindre (25) avec une conduite d'évacuation (42) adaptée à décharger du liquide à la surface du forage ou du puits, une unité d'entraînement (1) à la surface du forage ou du puits comprenant des pistons (6, 7) et des cylindres (3, 4) adaptés pour actionner ledit piston asservi (27) par l'intermédiaire d'une conduite sous pression (40) entre ladite unité d'entraînement (1) et ledit piston asservi (27), ladite unité d'entraînement (1) étant à double action afin de communiquer à la fois un mouvement ascendant et un mouvement descendant audit piston de pompage (28) et audit piston asservi (27) lorsque les pistons (6 et 7) de l'unité d'entraînement (1) sont animés d'un mouvement alternatif, et un moyen de contrôle du débit actionné par la pression du fluide comprenant une vanne (50) sur ladite conduite d'évacuation (42) pour contrôler le débordement de ladite conduite d'alimentation (42) et permettre à ladite conduite d'évacuation d'être pressurisée pour une course de retour.
2. Pompe de forage ou de puits à actionnement hydraulique selon la revendication 1, caractérisée par le fait que ladite unité d'entraînement (1) comprend deux cylindres (3, 4) dans lesquels des pistons (6, 7) sont reliés à la pompe de manière opposée, l'un desdits cylindres (3) étant relié par ladite conduite sous Pression (40) à un côté du cylindre (25) de ladite unité asservie (2) pour déplacer ledit piston asservi (27), l'autre desdits cylindres (4) étant relié à ladite conduite d'évacuation (42) par une conduite auxiliaire sous pression (57) pour ramener ledit piston asservi, et dans laquelle ladite commande de débit est agencée pour fermer ladite conduite d'évacuation (42) sur la course de retour dudit piston asservi (27).
3. Pompe de forage ou de puits à actionnement hydraulique selon la revendication 1 ou 2, caractérisée par le fait que ladite commande de débit sur ladite conduite d'évacuation (42) comprend une vanne (50) dans une chambre (53) et un moyen (51) pour solliciter ladite vanne (50) vers une position fermée, et un piston (54) relié à ladite vanne (50) agencé pour ouvrir ladite vanne (50) quand la pression de ladite conduite sous pression (40) est appliquée audit piston (54).
4. Pompe de forage ou de puits à actionnement hydraulique selon l'une quelconque des revendications précédentes, caractérisée par le fait que ladite unité d'entraînement (1) est actionnée par un moyen moteur à fluide (13) agencé pour faire subir un mouvement alternatif audits pistons (6, 7) dans ladite unité d'entraînement (1) et possède en option des moyens de commande (23)pour modifier la vitesse du mouvement desdits pistons de l'unité d'entraînement au cours d'une course.
5. Pompe de forage ou de puits à actionnement hydraulique selon la revendication 1, caractérisée par le fait qu'une pompe immergée (2) comprend un premier cylindre supérieur (25) et un second cylindre inférieur (26), l'espace (48) d'un cylindre (25) étant isolé de l'espace (38) de l'autre cylindre (26) par une cloison de séparation (31) comportant un joint (32) et dans laquelle une ouverture au travers du piston de pompage (28) dans le cylindre inférieur (26) comporte une vanne anti- retour (33) pour admettre du fluide venant d'une chambre (32) au-dessous du piston de pompage (28) jusque dans la biellette de liaison creuse.
6. Pompe de forage ou de puits à actionnement hydraulique selon l'une quelconque des revendications 1 à 5, caractérisée par le fait que le moyen moteur (1) pour actionner lesdits pistons d'entraînement (6, 7) comprend des cylindres (14, 15) avec des pistons (11, 12) à l'intérieur, des moyens (8, 9, 10) interconnectant lesdits pistons (6, 7, 11, 12) de façon à faire subir un mouvement alternatif aux pistons d'entraînement (6, 7), et des moyens d'alimentation en fluide (18, 19, 20) pour pressuriser en alternance lesdits cylindres (14, 15) du moyen moteur.
7. Pompe de forage ou de puits à actionnement hydraulique selon la revendication 6, caractérisée par le fait que lesdits moyens d'alimentation en fluide (18,19, 20) sont des moyens hydrauliques.
8. Pompe de forage ou de puits à actionnement hydraulique selon la revendication 6, caractérisée par le fait que lesdits moyens d'alimentation en fluide (18,19,20) sont des moyens pneumatiques.
9. Pompe de forage ou de puits à actionnement hydraulique selon l'une quelconque des revendications 1 à 6, caractérisée par le fait que les moyens d'actionnement des pistons d'entraînement (6, 7) comprennent une manivelle (60) adaptée pour être entraînée par les moyens moteur et une bielle (61) reliant lesdits pistons d'entraînement (3a, 4a).
10. Pompe de forage ou de puits à actionnement hydraulique selon l'une quelconque des revendications précédentes, caractérisée par le fait que la conduite d'evacuation (42) relie un côté de ladite unité d'entraînement (1) à un côte de ladite unité asservie (2), la conduite sous pression (40) relie l'autre côté de ladite unité d'entraînement (1) avec l'autre côté de ladite unité asservie (2) de façon que le mouvement de va-et-vient de ladite unité d'entraînement (1) Provoque un mouvement de va-et-vient de ladite unité asservie (2) pour créer une course de pompage et une course de retour, et dans laquelle la commande de débit (49) comprend une vanne (50) sur ladite conduite d' évacuation (42) pour ouvrir ladite conduite d' évacuation vers une sortie pendant la course de pompage mais pour fermer ladite sortie de ladite conduite d' évacuation (42) sur la course de retour, la vanne (50) de la commande de débit étant sollicitée en position fermée mais ouverte pour permettre au débit de circuler dans la conduite d' évacuation (42) quand la conduite sous pression (40) est pressurisée par le mouvement du piston (6) dans l'unité d'entraînement (1) afin que le débit de sortie du fluide par la conduite d' évacuation (42) se fasse uniquement quand la conduite sous pression (40) est pressurisée.
11. Pompe de forage ou de puits à actionnement hydraulique selon la revendication 7 ou 8, caractérisée par le fait qu'elle comprend des moyens pour créer une pression de fluide, des moyens de liaison pour relier lesdits moyens de pression du fluide afin d'alimenter ladite unité d'entraînement en fluide sous pression, des moyens de commande à solénoide dans lesdits moyens de liaison, et des moyens pour actionner lesdits moyens de commande à solénoide afin de déplacer lesdits pistons de ladite unité d'entraînement selon un mouvement de va-et-vient.
EP83902799A 1982-09-09 1983-09-07 Pompe de forage et de puits a actionnement hydraulique Expired EP0118497B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPF582282 1982-09-09
AU5822/82 1982-09-09

Publications (3)

Publication Number Publication Date
EP0118497A1 EP0118497A1 (fr) 1984-09-19
EP0118497A4 EP0118497A4 (fr) 1985-04-11
EP0118497B1 true EP0118497B1 (fr) 1988-08-24

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ID=3769741

Family Applications (1)

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EP83902799A Expired EP0118497B1 (fr) 1982-09-09 1983-09-07 Pompe de forage et de puits a actionnement hydraulique

Country Status (7)

Country Link
EP (1) EP0118497B1 (fr)
JP (1) JPS59501516A (fr)
DE (1) DE3377805D1 (fr)
DK (1) DK153242C (fr)
IN (1) IN159718B (fr)
WO (1) WO1984001002A1 (fr)
ZA (1) ZA836613B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758739A (zh) * 2014-01-06 2014-04-30 北京万普瑞能源技术有限公司 一种液力活塞泵举升系统
CN103821703A (zh) * 2014-01-06 2014-05-28 北京万普瑞能源技术有限公司 一种井下液力活塞泵
DE202022100566U1 (de) 2022-02-01 2023-05-03 IEG - Technologie GmbH Kolbenpumpe

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564526A1 (fr) * 1984-05-18 1985-11-22 Dujmovic Tomislav Pompe a haute pression pour puits de toutes profondeurs
ZA957564B (en) * 1994-09-09 1996-04-17 Pumpwell Pty Ltd Fluid pump
US20050169776A1 (en) 2004-01-29 2005-08-04 Mcnichol Richard F. Hydraulic gravity ram pump
US9115710B2 (en) 2004-01-29 2015-08-25 Richard F. McNichol Coaxial pumping apparatus with internal power fluid column
DE102004060324A1 (de) * 2004-12-11 2006-06-14 Herwart Dietrich Pumpenanordnung zur Förderung einer Flüssigkeit aus einem Bohrloch
CN100348833C (zh) * 2005-07-26 2007-11-14 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 双作用往复泵直线电机举升装置
WO2008092266A1 (fr) 2007-01-30 2008-08-07 Fisher Norman A Dispositif de pompage coaxial à colonne hydraulique interne
DE102007013908A1 (de) * 2007-03-16 2008-09-18 Harald Fricke Förderanlage für Lagerstätten oder Reservoire mit fließfähigen Stoffen
US9316215B2 (en) 2012-08-01 2016-04-19 Gp Strategies Corporation Multiple pump system

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FR606576A (fr) * 1925-02-25 1926-06-16 Perfectionnements aux systèmes de transmission hydraulique à distance des pompes
US1805441A (en) * 1927-01-08 1931-05-12 Wilbur N Squires Deep well pump
CH266197A (de) * 1945-10-03 1950-01-15 Skf Svenska Kullagerfab Ab Pneumatischer Motor.
US2527184A (en) * 1946-03-30 1950-10-24 Gerhold Jose Aderito Pump for raising petroleum and other liquids from deep wells
GB682223A (en) * 1950-01-10 1952-11-05 Bendix Aviat Corp Electro-mechanical stroke limit control for hydraulic motor
FR1307543A (fr) * 1961-12-05 1962-10-26 Perfectionnements aux pompes pour puits et forages profonds
ZA763390B (en) * 1976-06-08 1977-06-29 Jbfn Dev Ltd Improvements in pump assemblies
NO150371C (no) * 1982-02-15 1984-10-03 Ludvig Naess Pumpe for vaeske og gass
US4462763A (en) * 1982-03-24 1984-07-31 Macleod Donald I Hydraulic pump jack

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758739A (zh) * 2014-01-06 2014-04-30 北京万普瑞能源技术有限公司 一种液力活塞泵举升系统
CN103821703A (zh) * 2014-01-06 2014-05-28 北京万普瑞能源技术有限公司 一种井下液力活塞泵
DE202022100566U1 (de) 2022-02-01 2023-05-03 IEG - Technologie GmbH Kolbenpumpe
EP4219943A1 (fr) * 2022-02-01 2023-08-02 IEG - Technologie GmbH Pompe à piston

Also Published As

Publication number Publication date
DE3377805D1 (en) 1988-09-29
WO1984001002A1 (fr) 1984-03-15
DK153242C (da) 1988-12-05
EP0118497A4 (fr) 1985-04-11
ZA836613B (en) 1984-04-25
IN159718B (fr) 1987-06-06
DK153242B (da) 1988-06-27
JPS59501516A (ja) 1984-08-23
EP0118497A1 (fr) 1984-09-19
DK227984A (da) 1984-05-08
DK227984D0 (da) 1984-05-08

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