WO2004001184A1 - Dispositif de pompage de petrole et tuyau de soutien - Google Patents

Dispositif de pompage de petrole et tuyau de soutien Download PDF

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Publication number
WO2004001184A1
WO2004001184A1 PCT/CN2003/000301 CN0300301W WO2004001184A1 WO 2004001184 A1 WO2004001184 A1 WO 2004001184A1 CN 0300301 W CN0300301 W CN 0300301W WO 2004001184 A1 WO2004001184 A1 WO 2004001184A1
Authority
WO
WIPO (PCT)
Prior art keywords
riser
pumping unit
ball nut
centering
wall
Prior art date
Application number
PCT/CN2003/000301
Other languages
English (en)
Chinese (zh)
Inventor
Hualin Li
Original Assignee
Hualin Li
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hualin Li filed Critical Hualin Li
Priority to AU2003236159A priority Critical patent/AU2003236159A1/en
Publication of WO2004001184A1 publication Critical patent/WO2004001184A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level

Definitions

  • the present invention relates to an oil production machine, and more particularly to a riser oil production machine in which an oil production machine is disposed directly above a wellhead. Background technique
  • the oil extraction machine used in oilfields in various countries is usually a beam pumping unit and a chain pumping unit.
  • the structure design of the chain pumping unit is not reasonable and the life is low.
  • the motor drives the transmission system consisting of the connecting rod of the boom.
  • the beam is driven by the connecting rod of the boom to realize the commutation.
  • the weight of the sucker rod and the oil column are indirectly balanced by the rotating counterweight.
  • the mechanical equipment of this pumping unit is huge and the balance is not easy. Adjustment, large energy consumption, and difficult to achieve long stroke operation, so this pumping unit needs further improvement.
  • 3 is a positioning balanced beam pumping unit, which changes the balancing device to a balance block suspended from the tail of the beam or the cross beam, which can make the work load of power equipment more balanced and reduce the overall machine. Manufacturing cost, but failed to solve the problem of increased stroke.
  • the purpose of the present invention is to overcome the shortcomings of the existing pumping units described above, and provide a riser pumping unit, which directly sets the pumping unit riser directly above the wellhead, adopts a ball screw transmission method, and the pumping rod is directly and balanced.
  • the blocks are balanced to simplify the structure, increase the stroke, reduce the amount of materials used, reduce the production cost of the equipment, and also save energy consumption.
  • the present invention provides a standpipe pumping unit, which includes a standpipe, a sucker rod, a balance weight, a motor, and a transmission system.
  • a transmission mechanism for up and down operation of the sucker rod is provided in the riser.
  • the transmission mechanism is composed of an intermeshing ball nut and a ball screw, wherein an upper end of the sucker rod is fixedly connected with the ball nut and an upper end of the ball screw Supported on the upper part of the riser, a gear is arranged at the lower end thereof, and a gear box is arranged near the gear.
  • the gear is drivingly connected with a transmission motor fixedly arranged near the wall of the riser through the gear box.
  • the upper part of the riser is provided with a pulley and a traction suspension rope bypassing the pulley.
  • One end of the traction suspension rope is connected with a balance weight, and the other end is connected with a ball nut.
  • a limit block and anti-collision device of the balance weight is provided at an appropriate position on the outer wall of the riser.
  • a centering wheel which is in contact with the inner wall of the riser can be provided on the outside of the ball nut.
  • a centering wheel in contact with the inner wall of the riser is provided on the outer side of the ball nut to form a vertical stand.
  • the balance weight is sleeved on the outside of the riser in the form of an annular balance weight, and the annular balance weight is provided with a centering wheel that is in contact with the outer wall of the riser.
  • centering wheels provided by the ring-shaped balance weight constitute three groups of centering wheels evenly distributed along the circumference of the outer wall of the riser, and each group of centering wheels is provided with two centering wheels along the upper and lower sides.
  • the upper end of the sucker rod can pass through the center of the ball nut and be fixed by a fixing member.
  • the fixing member at the upper end of the sucker rod is a square card fixing member.
  • the up and down movement of the ball nut is realized through the forward and reverse rotation of the motor.
  • the riser is equipped with a balance weight.
  • the top of the riser is provided with a pulley and a traction suspension rope.
  • One end of the traction suspension rope is connected to the ring balance weight.
  • a limit block and anti-collision device of the balance block is arranged at an appropriate position on the outer wall of the riser.
  • the lower end of the riser is provided with a flange connected to the wellhead.
  • the advantage of the invention is that because the ball nut and ball screw are used as the transmission mechanism of the sucker rod, the screw pair is rolling, the resistance and torque are small, the energy consumption is small, and the operation can be determined according to the requirements of different stroke sizes. Length for long stroke operation.
  • the direct balance structure has a high degree of balance, and the direct balance structure runs smoothly with low vibration.
  • the whole structure of the riser pumping unit of the present invention is simplified, the stroke is increased, the amount of material used is reduced, and the production cost of the equipment is reduced.
  • FIG. 1 is a schematic structural diagram of a riser pumping unit according to the present invention.
  • Fig. 2 is a schematic enlarged sectional view of a ball nut of a standpipe pumping unit according to the present invention, taken along a horizontal direction.
  • FIG. 3 is an enlarged schematic view of a ball nut of the present invention in a vertical direction, that is, a longitudinal section of a sucker rod.
  • FIG. 4 is a schematic horizontal or horizontal cross-sectional view of the ball nut according to the present invention corresponding to FIG. 3. Specific embodiment
  • the riser pumping unit of the present invention includes a riser, a sucker rod, a weight, a motor, and a transmission system.
  • the riser 1 of the present invention has a built-in meshing ball nut 2 and a ball screw 3.
  • the center of the ball nut 2 passes through the sucker rod 4 and is connected to the sucker rod.
  • a square clip can be used to fix the sucker rod and the ball nut at the upper end of the sucker rod 4 passing through the ball nut.
  • the upper end of the ball screw 3 is supported on the top of the riser 1, and the lower end of the ball screw 3 is inserted into a gear box 5, which is connected to a motor 6 fixed on the wall of the riser 1.
  • the outer tube 1 of the riser 1 is equipped with a ring-shaped balance weight 7, and a pulley 8 and a traction suspension line 9 are provided on the top.
  • the traction suspension line 9 is connected to the ring balance weight 7 at one end, and connected to the ball nut 2 across the pulley 8 at the other end.
  • a position-limiting collision avoidance device 10 is provided at a proper position.
  • a centering wheel 11 which is in contact with the inner wall of the riser can be provided on the outside of the ball nut.
  • the outside of the ball nut 2 is provided with a centering wheel 11 which is in contact with the inner wall of the riser.
  • each group of centering wheels 11 is provided with two up and down.
  • the centering wheel is shown in Figure 2.
  • FIG. 2 Also shown in FIG. 2 is a threaded hole 21 through which the ball nut 2 passes through the ball screw 3. Details of the threaded hole will be described with reference to FIG. 3.
  • the balance weight 7 is sleeved on the outside of the riser in the form of a ring-shaped balance weight, and the ring-shaped balance weight is provided with a centering wheel 12 in contact with the outer wall of the riser.
  • centering wheels 12 provided on the ring-shaped balance weight can be uniformly distributed along the circumference to form three or three groups of centering wheels, like the centering wheels 11 provided on the outside of the ball nut 2. If three groups of centering wheels 12 are provided, each group of centering wheels 12 is provided with two centering wheels along the upper and lower sides. The lower end of the riser is provided with a flange connected to the wellhead.
  • Fig. 3 is an enlarged schematic view of the ball nut 2 of the present invention in a vertical direction, that is, a longitudinal section of the sucker rod.
  • the threaded hole 21 formed by the ball nut can be clearly seen.
  • a ball 23 is provided in the threaded groove.
  • the figure also shows that a ball channel 24 is formed outside the peripheral wall of the threaded hole 21 adjacent to the peripheral wall, and the channel communicates from the upper port of the threaded groove to the lower port of the threaded groove, so that the ball nut 2 is replaced by the ball During the transmission of the screw 3, the ball 23 driven by the ball screw 3 can be rolled from the upper thread groove into the lower thread groove.
  • FIG. 4 is a schematic horizontal or horizontal cross-sectional view of the ball nut according to the present invention corresponding to FIG. 3.
  • the centering wheel 11 is arranged on the ball nut 2 by a bearing, and three or three groups of the centering wheel 11 are uniformly distributed corresponding to the inner wall of the riser 1.
  • Reference numeral 21 in the figure is a threaded hole of the ball nut 2.
  • the present invention may also use one centering wheel.
  • the centering wheel is disposed on the opposite side of the threaded hole 21 of the ball nut 2 shown in FIG. 4, and the two centering wheels adjacent to the ball nut threaded hole 21 are omitted, and where the centering wheel is omitted, a section with the centering wheel is omitted.
  • the arc of the inner wall of the riser is replaced by a circular arc with the same arc, so that the arc can make smooth contact with the inner wall of the riser.
  • the operation mode of the riser pumping unit of the present invention is shown in FIG. 1.
  • the lower end of the riser pumping unit riser 1 is fixedly connected to the wellhead, the motor 6 is started, and the ball screw 3 drives the ball nut 2 to move upwards.
  • the oil rod 4 is lifted upwards to realize oil extraction, and at the same time, the ring-shaped balance weight 7 moves downwards.
  • the motor rotates in the reverse direction according to the setting procedure of the control cabinet, driving the ball screw 3 to reverse, and oil is pumped.
  • the rod 4 moves downward.
  • the motor rotates in the reverse direction again according to the setting procedure of the control cabinet, and the next lifting of the sucker rod 4 starts.
  • the control cabinet can change the forward and reverse rotation speeds of the motor 6 so that the upward speed, that is, the lifting speed of the sucker rod 4 is fast, and the downward speed is slow, that is, the sucker rod 4 moves slowly downward, which increases the oil pumping.
  • Machine efficiency especially when the oil is relatively viscous, this operation mode is more favorable.
  • the stroke and stroke of the pumping unit can be automatically adjusted according to the fluid supply capacity of the oil well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne un dispositif de pompage de pétrole comprenant un tuyau de soutien (1), une tige de pompage (4), un contrepoids (7), un moteur et un système de transmission installé dans le tuyau de soutien (1). Le système de transmission comprend un écrou et une vis entre lesquels sont installées des billes. La tige de pompage (4) est fixée à l'écrou (2) à son extrémité supérieure. L'extrémité supérieure de la vis (3) est reliée à l'extrémité supérieure du tuyau de soutien (1) et son extrémité inférieure à un engrenage dans un boîtier de vitesse (5). L'engrenage est relié au moteur par le biais du boîtier de vitesse (5). Le contrepoids (7) est installé à l'extérieur du tuyau de soutien (1) et sur lequel est installée une poulie (8). Une extrémité d'un câble (9) est reliée au contrepoids (7) et une autre extrémité à l'écrou (2). Un dispositif anti-collision (10) du contrepoids est installé à l'extérieur du tuyau de soutien (1). La résistance produite pendant le déplacement relatif entre l'écrou (2) et la vis (3) est réduite et la perte d'énergie est moindre.
PCT/CN2003/000301 2002-06-21 2003-04-24 Dispositif de pompage de petrole et tuyau de soutien WO2004001184A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003236159A AU2003236159A1 (en) 2002-06-21 2003-04-24 An oil pumping unit with a supporting pipe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02121439.5A CN1384271A (zh) 2002-06-21 2002-06-21 立管抽油机
CN02121439.5 2002-06-21

Publications (1)

Publication Number Publication Date
WO2004001184A1 true WO2004001184A1 (fr) 2003-12-31

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ID=4744972

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000301 WO2004001184A1 (fr) 2002-06-21 2003-04-24 Dispositif de pompage de petrole et tuyau de soutien

Country Status (3)

Country Link
CN (1) CN1384271A (fr)
AU (1) AU2003236159A1 (fr)
WO (1) WO2004001184A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101123167B1 (ko) * 2009-11-27 2012-03-19 주식회사 엠아이텍 천공 혈관 폐쇄 방법 및 그 장치
WO2014188447A3 (fr) * 2013-04-26 2015-04-09 Eesavyasa Technologies Pvt. Ltd Pompage d'un puits foré, d'un puits à ciel ouvert, d'un ruisseau et d'un canal à l'aide d'une colonne d'air liquide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101294484B (zh) * 2008-05-21 2011-10-05 王忠山 单冲程机泵联控的抽油设备
CN106246844B (zh) * 2016-08-09 2019-06-11 中国科学院长春光学精密机械与物理研究所 光栅刻划机及其螺母减重装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2056695U (zh) * 1989-05-16 1990-05-02 青岛石油机械厂 机械换向钢绳式抽油机
US5404767A (en) * 1993-09-03 1995-04-11 Sutherland; James M. Oil well pump power unit
CN1196782A (zh) * 1996-06-21 1998-10-21 Thk株式会社 滚珠丝杠装置
CN2412105Y (zh) * 1999-12-17 2000-12-27 大港油田集团钻采工艺研究院 直线电机驱动无游梁抽油机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2056695U (zh) * 1989-05-16 1990-05-02 青岛石油机械厂 机械换向钢绳式抽油机
US5404767A (en) * 1993-09-03 1995-04-11 Sutherland; James M. Oil well pump power unit
CN1196782A (zh) * 1996-06-21 1998-10-21 Thk株式会社 滚珠丝杠装置
CN2412105Y (zh) * 1999-12-17 2000-12-27 大港油田集团钻采工艺研究院 直线电机驱动无游梁抽油机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101123167B1 (ko) * 2009-11-27 2012-03-19 주식회사 엠아이텍 천공 혈관 폐쇄 방법 및 그 장치
WO2014188447A3 (fr) * 2013-04-26 2015-04-09 Eesavyasa Technologies Pvt. Ltd Pompage d'un puits foré, d'un puits à ciel ouvert, d'un ruisseau et d'un canal à l'aide d'une colonne d'air liquide

Also Published As

Publication number Publication date
AU2003236159A1 (en) 2004-01-06
CN1384271A (zh) 2002-12-11

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