WO2008077316A1 - Unité de pompage à levier pourvue d'un mécanisme d'équilibrage à poids suspendus - Google Patents

Unité de pompage à levier pourvue d'un mécanisme d'équilibrage à poids suspendus Download PDF

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Publication number
WO2008077316A1
WO2008077316A1 PCT/CN2007/003735 CN2007003735W WO2008077316A1 WO 2008077316 A1 WO2008077316 A1 WO 2008077316A1 CN 2007003735 W CN2007003735 W CN 2007003735W WO 2008077316 A1 WO2008077316 A1 WO 2008077316A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulley
pumping unit
crank
reducer
bracket
Prior art date
Application number
PCT/CN2007/003735
Other languages
English (en)
Chinese (zh)
Inventor
Fan Yang
Ronghui Yang
Ruosong Yang
Original Assignee
Fan Yang
Ronghui Yang
Ruosong Yang
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 Fan Yang, Ronghui Yang, Ruosong Yang filed Critical Fan Yang
Publication of WO2008077316A1 publication Critical patent/WO2008077316A1/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
    • F04B47/022—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level driving of the walking beam

Definitions

  • the invention is an efficient energy-saving, safe and durable pumping unit developed for the current high-energy consumption problem of the pumping unit in the current oil production project.
  • crank balance beam pumping unit is the mainstream model widely used in oil production engineering.
  • the main problems of this machine are two points: 1 high energy consumption, low efficiency, huge waste of electric energy, 2 many machine parts, and large downtime loss. Facing the reality of China's resource and environmental pressures, it is of great significance to develop energy-saving and durable pumping units to promote a conservation-oriented production model.
  • the "lifting pulley block balanced pumping unit” is the "utility model patent” that I applied for on March 14, 2002 and was authorized to be announced on April 9, 2003 (patent number: ZL02224640. 1).
  • the energy saving effect is very remarkable, but due to the limitations of the design structure, the stroke is difficult to enlarge, and it is only suitable for the model with small stroke specifications, and the model with larger stroke specifications uses the solution of the present invention.
  • the present invention aims to solve the deficiencies in the above background art, and provide a new generation of pumping units that are highly efficient, energy-saving, and durable for oil production projects.
  • the overall structural design changes the crank balance mode of the “Crank Balance Beam Pumping Unit” as the hoisting balance method, and the lever type beam of the “Crank Balance Beam Pumping Unit” is the front beam.
  • the movable pulley, the two fixed pulleys, the steel cord rubber belt, the hanging sling and the like are skillfully recycled to utilize the gravity work of the falling of the polished rod and solve the problem of the 'tracking balance' of the mechanism motion, which greatly reduces the driving. Force, breaking through the energy saving effect of more than 50% energy saving.
  • the pulley block balancing mechanism can reduce the balance torque with less hanging, save the hanging material and reduce the load of the steel cord rubber belt.
  • the rear-mounted drive mechanism of the "lifting pulley block balanced pumping unit" is a front-mounted drive mechanism, which satisfies the large structural requirements of the mainframe stroke design. Confirmed by the base (1), bracket (2), beam (4), song
  • the four-bar linkage mechanism composed of the crank wheel (9) and the push-pull rod (11) changes the length of the connecting rod composed of the crank radius and the push-pull rod (11) by the rotation of the crank wheel, so that the beam (4) swings up and down. The longer the beam (4) of the design or the larger the radius of rotation of the crank pin device (10), the greater the stroke of the pumping unit.
  • the soft joint of the sling is a steel cord rubber belt scheme designed for the present invention.
  • the belt adopts a plurality of steel wire ropes with excellent bending fatigue strength ( ⁇ 4. 5 ⁇ ⁇ 7).
  • Rubber vulcanization molding with uniform pre-tension and uniform weathering resistance at 4mm intervals, in order to strengthen the life of the pressure-bearing surface, pressure-bearing crack-proof cushion layer on the pressure-bearing surface, excellent bending fatigue resistance, and maintenance-free Features.
  • the number of ropes and the thickness of the rubber layer and the length of the belt are designed according to each model. Both ends of the joints use a hot-filled lead connection scheme for excellent joint strength.
  • the present invention designs a crank pin nut anti-loose structure which is tightened by six inner hexagonal screws, which completely solves the problem of looseness of the original crank pin lock nut and a large number of failures due to looseness.
  • the dynamic balance of the downhole liquid level is the optimal pumping parameter of the pumping unit.
  • the large stroke theory has limitations.
  • the shifting motion parameters of the beam of the beam machine conform to the liquid twitching theory, and the uniform motion of the beamless machine is not desirable.
  • the hoisting and balancing method can recover the gravity work of the falling of the polished rod more than the crank balancing method.
  • the beneficial effects of the invention are: 1. Compared with the "Crank Balance Beam Pumping Unit", the power saving rate is more than 50%.
  • FIG. 4 Schematic diagram of the arrangement of the pulley block
  • FIG. 5 Schematic diagram of the horizontal double-row pulley block
  • FIG. 7 Schematic diagram of the manufacturing method of steel cord rubber band joint
  • crank linkage Mechanism including two symmetrical two crank wheels (9), two symmetrical crank pin devices (10), two symmetrical push rods (11), beam combinations (5)], brackets (12), moving pulleys (13) ( —Single row or two side by side, see Figure 4, Figure 5), fixed pulley (14) (one single row or two side by side, see Figure 4, Figure 5), steel cord rubber band (15) (- single Row or two side by side), hanging Main parts and components such as ⁇ (16), guide rod (17), power unit (18), pulley (19), brake and flywheel (20), hoe rope (21), pole (22), guardrail (23), etc. composition.
  • the bracket (2) is fixed on the base (1), and the beam (4) is fixed on the bracket (2) by the beam support (3), and can be oscillated up and down with the beam support as the axis.
  • the other end is fixed on the bracket (12), the moving pulley (13), the front and rear two fixed pulleys (14 )
  • a balancing moment against the load moment is always applied to the front end of the beam (4).
  • the crank wheel (9) is symmetrically mounted on the output shafts on both sides of the reducer (8), and the lower end of the push-pull rod (11) (set) is coupled to the crank wheel (9) by a crank pin device (10), and the push-pull rod (11) ( A set)
  • the upper end and the beam (4) are joined by a beam (5) (including the bearing seat device) in a hinged manner.
  • the tri-belt pulley (19) of the power unit (18) is mounted on the input shaft of the reducer (8) side, and the brake-flywheel (20) is mounted on the input shaft on the other side of the reducer (8).
  • the power unit is driven by a triangular belt dragging speed reducer, and the output shaft of the reducer drives the crank wheel to rotate counterclockwise or clockwise, and the swinging rod reciprocates the pulling motion to swing the beam up or down.
  • the lifting force exerts a lifting torque to swing the beam and pump the oil.
  • the pump rod falls, the piston enters the oil, and the hoist is lifted to accumulate the potential energy. The above actions are repeated and the pumping operation is realized.
  • the hoisting and balancing method 100% recycles the gravity work of the polished rod, which reduces the supporting power.
  • the biggest problem of the crank balance mode is that the 'weight block' forms a geometric eccentricity, and the moment of inertia is extremely large. It is necessary to equip the large-capacity motor for the starting force, and it is a big horse-drawn car during operation, resulting in a large low power factor no-load power loss.
  • the balance weight can not achieve the tracking balance with the load change.
  • the weight itself is a large centrifugal load of the reducer shaft, which seriously affects its service life.
  • the invention is a hoisting and balancing method.
  • the balance method relieves the heavy load of the "Crank Balance Beam Pumping Unit" reducer, pumping load and counterweight load. It is carried by the bracket and the bracket.
  • the overall driving mechanism is less stressed and has a long service life.
  • the high-value reducer greatly improves the service life and achieves the dual goals of energy saving and durability.
  • the tracking balance effect in the process reduces the work done by the motor. That is to say, according to the actual oil pumping, the upper stroke load is large, and the initial stroke is gradually smaller, and the lower stroke load is smaller than the upper stroke load.
  • the design balance torque also changes with the pumping condition, that is, When the upper stroke is changed from large to small, it is good for pumping oil. When the stroke is down, it is small and large, which is good for the polished rod to fall back, thus reducing the power output.
  • the pulley block balancing mechanism can be used to generate multiple hoisting balance torque with less hanging.
  • the double-row pulley block structure allows for space in the middle to reduce the height of the bracket design.
  • the movable pulley also adopts a double-row structure, which can improve the curvature radius of the bending of the rubber cord of the steel cord core, improve the service life, and achieve better safety, reliability and durability. (Figure 4, Figure 5)
  • the single wire rope is used for the soft connection of the sling, which is easy to bend and wear at the contact of the pulley, and must be regularly greased for maintenance and has a short service life.
  • the present invention adopts a plurality of steel wire ropes (26) ( ⁇ 4.5 to ⁇ 7) excellent in bending fatigue strength, uniformly distributes the same pre-tension, and has a rubber-coated rubber layer (27) excellent in weather resistance at intervals of 4 mm, and is vulcanized.
  • the steel cord core rubber belt achieves both high life and maintenance free features. .
  • the number of ropes and the thickness of the rubber layer and the length of the belt are designed according to each model.
  • connection strength is very excellent.
  • crank pin lock nut (Fig. 8)
  • the traditional lock nut is generally loosened with a double nut or a split pin, and the most likely to be loosened during use causes the failure of the crank pin (36).
  • the invention adopts six inner hexagonal screws (33) and a backing plate (35). When the lock nut (34) is tightened, the six inner hexagonal screws (33) are tightened and the top plate (35) is never loosened. .

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)
  • Reciprocating Pumps (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

L'invention concerne une unité de pompage à levier pourvue d'un mécanisme d'équilibrage à poids suspendus et comprenant un cadre (2), un support (12), un palan (13, 14) d'équilibrage à poids suspendus, un câble métallique (15), un levier (4) et un mécanisme d'entraînement. Le levier et le mécanisme d'entraînement sont montés à l'avant. Le câble métallique (15) est une courroie en caoutchouc constituée de cordes en acier. L'unité de pompage présente de nombreux avantages tels qu'une durée de vie plus longue, une course plus longue, et permet de faire des économies d'énergie.
PCT/CN2007/003735 2006-12-22 2007-12-21 Unité de pompage à levier pourvue d'un mécanisme d'équilibrage à poids suspendus WO2008077316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610105241.8 2006-12-22
CN2006101052418A CN101059071B (zh) 2006-12-22 2006-12-22 吊重平衡游梁式抽油机

Publications (1)

Publication Number Publication Date
WO2008077316A1 true WO2008077316A1 (fr) 2008-07-03

Family

ID=38865352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003735 WO2008077316A1 (fr) 2006-12-22 2007-12-21 Unité de pompage à levier pourvue d'un mécanisme d'équilibrage à poids suspendus

Country Status (2)

Country Link
CN (1) CN101059071B (fr)
WO (1) WO2008077316A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837763A (zh) * 2017-04-26 2017-06-13 哈尔滨理工大学 抽油机动态调平衡装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892819A (zh) * 2010-07-26 2010-11-24 董兰田 前动力平衡游梁抽油机
CN103364288B (zh) * 2013-08-05 2016-04-13 南通铁人运动用品有限公司 钢丝绳耐久测试机
CN105422052B (zh) * 2015-12-24 2018-07-13 一能电气有限公司 一种游梁式抽油机
CN108266179A (zh) * 2018-04-08 2018-07-10 宝鸡三阳石油机械有限公司 用于吊重平衡游梁式抽油机的交变加载实验装置系统
CN114604566A (zh) * 2020-12-08 2022-06-10 泰富重工制造有限公司 一种利用多种工艺平台式桁架穿长距离胶带的方法
CN112593900A (zh) * 2020-12-29 2021-04-02 大庆丹诺石油科技开发有限公司 塔架式抽油机
CN112814627A (zh) * 2021-03-22 2021-05-18 山东创新石油技术有限公司 电控换向直驱游梁抽油机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377092A (en) * 1980-07-14 1983-03-22 Pioneer Electric Supply Co., Inc. Well pump jack with controlled counterbalancing
US4483208A (en) * 1982-07-02 1984-11-20 Parker Jr Thomas N Pumping unit
US4671126A (en) * 1984-01-19 1987-06-09 Marine & Petroleum Equipment Mape Walking beam pumping unit
CN2137295Y (zh) * 1992-06-23 1993-06-30 东北重型机械学院秦皇岛分校 全平衡双带长冲程抽油机
CN2192743Y (zh) * 1994-05-20 1995-03-22 白洪凯 节能型前置式抽油机
CN2544096Y (zh) * 2002-03-14 2003-04-09 杨帆 吊重滑轮组平衡式抽油机
CN201003485Y (zh) * 2006-12-22 2008-01-09 杨帆 吊重平衡游梁式抽油机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377092A (en) * 1980-07-14 1983-03-22 Pioneer Electric Supply Co., Inc. Well pump jack with controlled counterbalancing
US4483208A (en) * 1982-07-02 1984-11-20 Parker Jr Thomas N Pumping unit
US4671126A (en) * 1984-01-19 1987-06-09 Marine & Petroleum Equipment Mape Walking beam pumping unit
CN2137295Y (zh) * 1992-06-23 1993-06-30 东北重型机械学院秦皇岛分校 全平衡双带长冲程抽油机
CN2192743Y (zh) * 1994-05-20 1995-03-22 白洪凯 节能型前置式抽油机
CN2544096Y (zh) * 2002-03-14 2003-04-09 杨帆 吊重滑轮组平衡式抽油机
CN201003485Y (zh) * 2006-12-22 2008-01-09 杨帆 吊重平衡游梁式抽油机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837763A (zh) * 2017-04-26 2017-06-13 哈尔滨理工大学 抽油机动态调平衡装置
CN106837763B (zh) * 2017-04-26 2018-04-03 哈尔滨理工大学 抽油机动态调平衡装置

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Publication number Publication date
CN101059071B (zh) 2011-06-08
CN101059071A (zh) 2007-10-24

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