WO2004001185A1 - Unite de pompage pourvue d'un balancier incurve et plie - Google Patents

Unite de pompage pourvue d'un balancier incurve et plie Download PDF

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Publication number
WO2004001185A1
WO2004001185A1 PCT/CN2003/000405 CN0300405W WO2004001185A1 WO 2004001185 A1 WO2004001185 A1 WO 2004001185A1 CN 0300405 W CN0300405 W CN 0300405W WO 2004001185 A1 WO2004001185 A1 WO 2004001185A1
Authority
WO
WIPO (PCT)
Prior art keywords
pumping unit
tail
assembly
crank
bearing assembly
Prior art date
Application number
PCT/CN2003/000405
Other languages
English (en)
Chinese (zh)
Inventor
Zhiping Zhang
Zhaoyong Guo
Guangshun Zhang
Original Assignee
Zhiping Zhang
Zhaoyong Guo
Guangshun Zhang
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 Zhiping Zhang, Zhaoyong Guo, Guangshun Zhang filed Critical Zhiping Zhang
Publication of WO2004001185A1 publication Critical patent/WO2004001185A1/fr

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Classifications

    • 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
    • E21B43/127—Adaptations of walking-beam pump systems
    • 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
    • F04B47/028—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level details of the walking beam

Definitions

  • the present invention relates to a three-fold travelling beam balanced pumping unit product for oil fields, which is referred to as a three-fold travelling beam pumping unit.
  • the beam pumping unit is usually assembled by functional parts such as the base, the motor, the reducer and the crank link assembly, the crank balance weight, the bracket, the suspender assembly, the donkey head, the bracket bearing assembly, the beam assembly, and the tail bearing assembly. Due to its reliability and simple structure, this type of pumping unit has attracted more and more attention.
  • conventional beam pumping units (conventional units) have poor balance effects, large reductions in the net torque of the reducer output, Disadvantages such as high energy consumption, and many new energy-saving pumping units have come out in recent years.
  • conventional engines have always occupied an absolute dominant position.
  • the object of the present invention is to avoid the shortcomings of the prior art, and to provide a three-fold beam pumping unit product that has high reliability, durability and energy saving effects.
  • Tri-fold beam pumping unit including base, motor, reducer and crank connecting rod assembly, crank balance weight, bracket, suspension device, donkey head, bracket shaft component, beam component, tail bearing component, etc.
  • the tail is made into a downward zigzag shape.
  • the tail bearing assembly is installed on the upper side of the tail of the beam, and a beam balance weight is installed on the lower side of the tail of the beam.
  • the three-fold travelling beam pumping unit not only retains the characteristics of reliability and durability of conventional machines, but also reduces the stress on the crank link, tail bearing assembly, and reducer due to the balance of the travelling beam, making it reliable, Durability is further improved.
  • the fluctuation of the net torque output of the reducer of the three-fold beam pumping unit is significantly reduced, which achieves a better energy saving effect.
  • Its compound balance torque can be well balanced with the load torque, thereby reducing the peak value of the output net torque, smoothing its valley value (eliminating negative torque) and reducing its fluctuation. As shown by the "M" curve in Figure 4, energy-saving effects are achieved.
  • Figure 1 is a schematic structural diagram of a three-fold beam pumping unit
  • FIG. 2 is a schematic structural diagram of a non-barbell
  • Figure 3 is a diagram of the balance torque generated by the crank balance weight of the conventional machine on the crankshaft; In the picture: the base 1, the motor 2, the belt 3, the reducer 4, the crank link assembly 5, the beam balance weight 6, the beam assembly 8, the bracket 9, the crank balance weight 14.
  • Embodiment 1 A three-fold oil beam pumping unit has a tail beam formed in a downwardly zigzag shape, a bearing assembly is installed on the upper side of the tail beam, and a beam balance weight is installed on the lower side of the tail beam.
  • Embodiment 2. On the basis of Embodiment 1, a three-fold oil beam pumping unit is welded with steel plates, and its cross-sectional shape is made into a box structure or an I-shaped steel structure.
  • Embodiment 3 On the basis of Embodiment 1, a three-fold oil beam pumping unit is made of a balance weight of a travel beam, and a barbell structure is hung on the lower end of the travel beam or a non-barbell-type structure, and is fixed at the rear end of the travel beam assembly. As shown in Figure 2.
  • a three-fold oil beam pumping unit can be made of cast iron, steel plate, or other materials. Its shape can be made into a disc shape like a barbell, or it can be made into a square shape. For non-circular shapes, such as rectangular and rectangular, the weight is adjusted by the structure of multiple pieces (multiple pieces) and the size of each piece (piece).
  • Embodiment 5 The three-fold oil beam pumping unit is based on Embodiment 1.
  • the tail bearing assembly is fastened to the upper side of the tail of the beam with bolts.
  • the pumping unit of this technology is equivalent to moving the upper side of the tail of a conventional beam down, changing the tail bearing assembly originally installed on the lower side of the beam to the upper side of the tail of the beam, and placing the original The beam assembly was relocated to the top of the beam, and a set of beam balance weights 6 was added to the lower side of the tail of the beam.
  • the rest all retained the conventional machine structure. Therefore, the three-fold travelling beam pumping unit not only retains the reliability and durability of conventional machines, but also reduces the forces on the crank link assembly, tail bearing assembly, and reducer due to the balance weight of the travelling beam. Its reliability and durability are further improved.
  • the fluctuation of the net torque output of the reducer of the three-fold beam pumping unit is significantly reduced, which achieves a better energy saving effect.
  • the motor When this pumping unit is in operation, the motor is used to drive the reducer through a belt, and the decelerating output shaft drives the beam through the crank link assembly to turn the continuous circular motion of the crank shaft into a beam.
  • the reciprocating swing of the traveling beam through the donkey head installed at its front end turns the reciprocating swing into a reciprocating linear motion of the suspension rope and the suspension device, so that the reciprocating oil pump that is suspended by the suspension rod on the suspension device works .
  • the suspender moves upwards, it is necessary to lift the sucker rod, the oil pump plunger, the liquid column above the plunger, and the inertia load and friction resistance load to work. This process is the same as conventional oil extraction. The difference between the two is:
  • crank balance weight is added to the zone handle.
  • the power engine and the weight of the sucker rod column work together to increase the crank balance weight.
  • the drop of the crank balance weight and the power machine suspend the weight hanging on the rope hanger. Do some work and lift it up.
  • the balance torque generated by the crank balance weight to the crank changes according to the sine law, as shown by the "Ml" curve in Figure 3.
  • crankshaft output net torque still has a large peak, a deep valley (negative torque), large fluctuations, and large energy consumption, as shown in "M” in Figure 3. Shown in the curve.
  • the three-fold beam pumping unit achieves the compound balance by installing a beam counterweight on the lower side of the beam tail while retaining the crank balance. Because the balance beam is installed at the tail of the beam and is offset downward by a certain distance (angle), the balance moment of the beam relative to the swing center of the beam and the bracket bearing assembly 14 is balanced at the lowest point of the stroke at the suspension point.
  • the energy saving effect is obvious.
  • the commonly used 4.8-meter stroke, 12-type three-fold beam pumping unit is compared with conventional units under certain operating conditions (as shown in the table below). It can be seen from the comparison parameters that the three-fold travelling beam pumping unit can save 25% of its energy under this condition. If the energy saving factor of the reduced motor power of the three-fold beam pumping unit is taken into account, the energy saving value will be greater than 30%.
  • different models of pumping units and different working conditions will change the energy saving situation.
  • the stroke length of conventional pumping units is generally small, and the three-way beam pumping unit can be made larger in stroke length when it is manufactured, so that the three-way beam pumping unit has a long stroke.
  • the energy-saving effect obtained is also a number that cannot be ignored.
  • the three-fold travelling beam pumping unit according to the present invention can be used in the manufacture of new pumping units, and can also be used to modify existing conventional units in use. At present, China needs an average of 5,000-7,000 new pumping units per year, and there are no less than 75,000 conventional units in use. It can be seen that whether it is manufacturing new machines or retrofitting old machines, there are broad market prospects. Attached Table Three parameter comparison table of beam pumping unit and conventional unit under the same working conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (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)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une unité de pompage pourvue d'un balancier incurvé et plié, comprenant une base (1), un moteur (2), un mécanisme de transmission (4), un ensemble de liaison de manivelle (5), un poids d'équilibrage pour la manivelle (10), un châssis (9), un ensemble suspension de câble (11), une tête de cheval (12), un ensemble palier de châssis (14), un ensemble balancier (13) et un ensemble palier arrière de balancier. L'extrémité arrière du balancier est incurvée et pliée vers le bas sur une certaine distance. L'ensemble palier (13) de l'extrémité arrière du balancier se trouve sur la surface supérieure de l'extrémité arrière dudit balancier (13), et le poids d'équilibrage (6) du balancier (13) se trouve sur la surface inférieure de l'extrémité arrière du balancier. Etant donné que le poids d'équilibrage (6) est abaissé sur une certaine distance, le couple de sortie de la manivelle est abaissé et donc la consommation de puissance est réduite pendant le fonctionnement.
PCT/CN2003/000405 2002-06-20 2003-05-29 Unite de pompage pourvue d'un balancier incurve et plie WO2004001185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02123722.0A CN1391028A (zh) 2002-06-20 2002-06-20 三折游梁抽油机
CN02123722.0 2002-06-20

Publications (1)

Publication Number Publication Date
WO2004001185A1 true WO2004001185A1 (fr) 2003-12-31

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PCT/CN2003/000405 WO2004001185A1 (fr) 2002-06-20 2003-05-29 Unite de pompage pourvue d'un balancier incurve et plie

Country Status (2)

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CN (1) CN1391028A (fr)
WO (1) WO2004001185A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155189A (zh) * 2011-04-26 2011-08-17 李海春 游梁式抽油机用平衡变矩装置
CN106321026A (zh) * 2016-11-26 2017-01-11 吕传庆 一种利用动力总成进行配重的抽油机
CN109339744A (zh) * 2018-10-26 2019-02-15 中国石油化工股份有限公司 一种无驱动游梁式抽油机自动调节平衡装置及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539004B (zh) * 2009-04-22 2012-01-11 濮阳市双发实业有限责任公司 外摆线游梁式抽油机
CN101672173B (zh) * 2009-08-31 2012-07-11 濮阳市双发实业有限责任公司 双驴头精平衡游梁抽油机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2206360Y (zh) * 1994-09-29 1995-08-30 萧炘 省材节能游梁式抽油机
CN2289075Y (zh) * 1996-01-09 1998-08-26 汪朴澄 平衡臂式两级平衡游梁抽油机
CN2349379Y (zh) * 1998-08-17 1999-11-17 新疆维吾尔自治区第三机床厂 下偏杠铃型游梁复合平衡抽油机
CN1302953A (zh) * 2000-01-06 2001-07-11 汪朴澄 规定质心下置平衡游梁抽油机
CN1083942C (zh) * 1999-12-10 2002-05-01 华北石油管理局第一机械厂 曲游梁抽油机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2206360Y (zh) * 1994-09-29 1995-08-30 萧炘 省材节能游梁式抽油机
CN2289075Y (zh) * 1996-01-09 1998-08-26 汪朴澄 平衡臂式两级平衡游梁抽油机
CN2349379Y (zh) * 1998-08-17 1999-11-17 新疆维吾尔自治区第三机床厂 下偏杠铃型游梁复合平衡抽油机
CN1083942C (zh) * 1999-12-10 2002-05-01 华北石油管理局第一机械厂 曲游梁抽油机
CN1302953A (zh) * 2000-01-06 2001-07-11 汪朴澄 规定质心下置平衡游梁抽油机

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155189A (zh) * 2011-04-26 2011-08-17 李海春 游梁式抽油机用平衡变矩装置
CN106321026A (zh) * 2016-11-26 2017-01-11 吕传庆 一种利用动力总成进行配重的抽油机
CN109339744A (zh) * 2018-10-26 2019-02-15 中国石油化工股份有限公司 一种无驱动游梁式抽油机自动调节平衡装置及方法
CN109339744B (zh) * 2018-10-26 2023-08-15 中国石油化工股份有限公司 一种无驱动游梁式抽油机自动调节平衡装置及方法

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Publication number Publication date
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