CN211258572U

CN211258572U - Double-horsehead pumping unit

Info

Publication number: CN211258572U
Application number: CN201921229348.2U
Authority: CN
Inventors: 马宽让; 邓康; 马鹏; 李社峰; 曹强
Original assignee: Baoji Huite Petroleum Equipment Co ltd
Current assignee: Baoji Huite Petroleum Equipment Co ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-08-14
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a double horsehead pumping unit, which comprises a main well base and an auxiliary well base, wherein a main derrick is arranged on the main well base, an auxiliary derrick is arranged on the auxiliary well base, a main horse head is movably arranged at the top of the main derrick, an auxiliary horse head is movably arranged at the top of the auxiliary well frame, a driving device for driving the main horse head to work is arranged on the main well base, a traction rope is connected between the main horse head and the accessory horse head, oil pumping ropes connected with a polish rod are respectively arranged on the main horse head and the accessory horse head, the oil pumping ropes are double ropes, a main polished rod eye and an auxiliary polished rod eye are fixed at the connecting end of the oil pumping rope and the polished rod, and a main square clamp and an auxiliary square clamp are fixed on the polished rod, the main square clamp is in contact with the main rope suspension device, a gap is reserved between the auxiliary square clamp and the auxiliary rope suspension device, and a buffer spring is arranged between the auxiliary square clamp and the auxiliary rope suspension device.

Description

Double-horsehead pumping unit

Technical Field

The utility model belongs to the technical field of oil recovery equipment, a beam-pumping unit in the oil field oil recovery is related to, concretely relates to polished rod can also continue the beam-pumping unit of stroke auxiliary shaft down stroke on the main shaft of pumping from polished rod square callipers fracture.

Background

At present, oil extraction methods of various oil fields are rod pumping and rodless pumping, wherein most of China is rod pumping and is in a mode of one pumping unit for one oil well, and two oil wells cannot pump oil simultaneously. The equipment investment is great, and power consumption is also very big, and old-fashioned beam-pumping unit's lifting rope polished rod connected mode is that the polished rod takes place the smooth rod direct fall into the well from polished rod slips department fracture moreover, easily causes the blowout and produces the operation and the mistake of salvaging the polished rod and produce. The lifting rope of the old oil pumping unit is hung on the horse head through the lifting rope wheel, so that impact load and chain accidents are easily caused when the lifting rope is broken and separated. The horse head must hang down or turn over or the side turns over and gives way when old-fashioned beam-pumping unit workover, and it is dangerous big that to large-scale beam-pumping unit whatever the mode of giving way is high altitude construction, and it is great even to use crane expense.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough among the prior art, provide an energy consumption little, efficient, safe and reliable's two horse head pumping unit, the utility model discloses a technical scheme be:

a double horsehead pumping unit comprises a main well base and an auxiliary well base, a main derrick is arranged on the main well base, an auxiliary derrick is arranged on the auxiliary well base, a main horse head is movably arranged at the top of the main derrick, an auxiliary horse head is movably arranged at the top of the auxiliary well frame, a driving device for driving the main horse head to work is arranged on the main well base, a traction rope is connected between the main horse head and the accessory horse head, oil pumping ropes connected with a polish rod are respectively arranged on the main horse head and the accessory horse head, the oil pumping ropes are double ropes, a main polished rod eye and an auxiliary polished rod eye are fixed at the connecting end of the oil pumping rope and the polished rod, and a main square clamp and an auxiliary square clamp are fixed on the polished rod, the main square clamp is in contact with the main rope suspension device, a gap is reserved between the auxiliary square clamp and the auxiliary rope suspension device, and a buffer spring is arranged between the auxiliary square clamp and the auxiliary rope suspension device.

Further, the haulage rope both ends be two ropes middle part for the single rope, the two ropes at haulage rope both ends be connected with main horse head and attached horse head respectively, two ropes and single rope through main polished rod eye and attach polished rod eye and main side card and attach the side card and be connected, main side card and main polished rod eye contact, attach the side card and attach and leave the clearance between the polished rod eye and be equipped with buffer spring between.

Further, main horse head and attach the horse head be fan-shaped horse head main horse head and attach the horse head and lean on polished rod one end inboard and be equipped with the breach of stepping down.

Furthermore, a group of rope hanging plates for respectively installing the oil pumping rope and the traction rope are arranged on the main horse head and the auxiliary horse head, a pair of rope hanging grooves for clamping the double ropes are formed in the rope hanging plates, and a pair of locking plates for fixing the double ropes are arranged on the rope hanging plates; the double ropes are steel wire ropes with opposite rotation directions.

Furthermore, the main derrick and the auxiliary derrick are both provided with impact-proof springs.

Further, drive arrangement include motor, reduction gear, crank and connecting rod, motor and retarder connection, the crank setting at the reduction gear output, the connecting rod setting at the crank free end and with main horse head keep away from the one end of oil pumping rope and be connected main well base on still be equipped with the braking brake.

Furthermore, both ends of the main horse head and the accessory horse head are provided with hanging rings.

Because the single driving device is adopted to drive the double horsehead to pump oil, the oil pumping unit has low energy consumption and high efficiency; the oil pumping rope adopts a double-rope structure, the oil pumping rope and the polished rod are connected through the double-rope-suspension device and the double-square clamp, the polished rod cannot work and fall into a well after the square clamp is broken, the impact on the attached rope-suspension mechanism when the attached square clamp takes effect can be avoided by the aid of the buffer spring between the attached square clamp and the attached rope-suspension device, safety and reliability are improved, and the traction rope between the main horse head and the attached horse head also adopts the double-rope-suspension device and the double-square clamp to be connected to guarantee safety.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a double rope suspension and a double square clamp;

FIG. 3 is a schematic diagram of a sling structure;

fig. 4 is a schematic diagram of the horse head structure.

Detailed Description

The oil pumping unit comprises a main well base 1 and an auxiliary well base 2, wherein a main derrick 3 and an auxiliary derrick 4 are respectively arranged on the main well base 1 and the auxiliary well base 2, the tops of the main derrick 3 and the auxiliary derrick 4 are respectively and movably provided with a main horse head 5 and an auxiliary horse head 6, a traction rope 8 is connected between the main horse head 5 and the auxiliary horse head 6, the main horse head 5 and the auxiliary horse head 6 are respectively provided with an oil pumping rope 9, the main well base 1 is also provided with a driving device 7, the driving device 7 is connected with the main horse head 5 to drive the main horse head 5 to work, and the main horse head 5 drives the auxiliary horse head 6 to work through the traction rope during working, so that one set of driving device 7 is adopted to drive the two horse heads to realize oil pumping, the energy consumption is reduced, and the production efficiency is improved.

In the traditional adopted equipment, a polished rod is connected with a sucker rope through the matching of a square clamp and a rope hanger, if the polished rod is broken from the square clamp, the polished rod falls into a well to cause production accidents, in order to avoid the polished rod from falling off after the polished rod is broken from the square clamp, a main rope hanger 10 and an attached rope hanger 11 are fixed on a sucker rope 9, a main square clamp 12 and an attached square clamp 13 are also arranged, the main square clamp 12 and the attached square clamp 13 are fixed on a polished rod A, the main square clamp 12 is in contact with the main rope hanger 10, the polished rod A is driven to move under the driving of the sucker rope 9, a gap is left between the attached square clamp 13 and the attached rope hanger 11, when the polished rod at the main square clamp 12 is broken, the attached square clamp 13 is in contact with the attached rope hanger 11 to replace the main square clamp 12 and the main rope hanger 10 to drive the polished rod to move, in order to avoid the damage to the attached square clamp 13 caused by overlarge impact force when the polished rod at the main square clamp 12 is broken, the buffer spring 14 is arranged between the square clamp 13 and the rope hanger 11 to protect the square clamp 13, and the oil pumping rope 9 in the structure adopts double ropes which are a pair of steel wire ropes with opposite rotation directions, so that the rotation of the oil pumping rope can be avoided. In the same way, the two ends of the traction rope 8 connected with the main horse head 5 and the auxiliary horse head 6 are also of a double-rope structure, the middle position of the traction rope is of a single rope (the structure of the two ends of the traction rope can refer to fig. 2, a polish rod A in fig. 2 is additionally arranged as a single rope at the middle section, and the oil pumping rope 9 is used as a double rope at any one of the two ends), the double ropes at the two ends of the traction rope 8 and the single rope at the middle section are also connected with the auxiliary rope hanger 11 through the main square clamp 12 and the auxiliary square clamp 13 which are matched with the main rope hanger 10, wherein the main rope hanger 10 and the auxiliary rope hanger 11 are fixed on the double ropes at the two ends of the traction rope 8, the main square clamp 12 and the auxiliary square clamp 13 are fixed on the single rope at the middle section of the traction rope 8, the same main square clamp 12 and the main rope hanger 10 are in contact stress, a gap is left between the auxiliary square clamp 13 and the auxiliary rope hanger 11, and a buffer spring 14 is arranged, so as to ensure, the safety and the reliability of the unit are ensured.

Because the oil pumping rope 9 and the traction rope 8 are both required to be connected with the main horse head 5 and the auxiliary horse head 6, a pair of rope hanging plates 15 are arranged on the main horse head 5 and the auxiliary horse head 6 to fix the oil pumping rope 9 and the traction rope 8, a rope hanging groove 15-1 is arranged on the rope hanging plate 15 shown in figure 4, a pair of locking plates 16 are also arranged on the rope hanging plate 15, and the double ropes are locked and fixed by the locking plates 16 in the rope hanging groove 15-1 because the joints of the oil pumping rope 9 and the traction rope 8 and the rope hanging plate 15 are double ropes, the double ropes are respectively clamped in the rope hanging groove 15-1.

As shown in figures 1 and 4, the main horse head 5 and the auxiliary horse head 6 in the equipment are fan-shaped horse heads, in order to conveniently overhaul the polished rod, the overhaul equipment needs to be abducted, and abduction gaps 5-1 are arranged on one sides, located on the oil pumping rope 9, of the main horse head 5 and the auxiliary horse head 6. Two ends of the main horse head 5 and the accessory horse head 6 are also provided with a hanging ring 5-2 which is convenient for the hoisting, dismounting and mounting of the horse head.

As shown in figure 1, a driving device 7 in the equipment comprises a motor 7-1, a speed reducer 7-2, a crank 7-3 and a connecting rod 7-4, wherein the motor 7-1 is connected with the speed reducer 7-2, the output end of the speed reducer 7-2 is provided with the crank 7-3, the crank 7-3 is freely connected with one end of a main horse head 5 through the connecting rod 7-4, the motor 7-1 drives the speed reducer 7-2 to drive the crank 7-3 and the connecting rod 7-4 to enable the main horse head 5 to work, and the main horse head 5 drives an auxiliary horse head 6 to work through a traction rope 8. A brake 18 is also arranged on the main shaft base 1 to brake the driving device 7.

In order to better protect the derrick and avoid the main horse head 5 and the auxiliary horse head 6 from losing traction and falling freely to cause impact damage to the derrick, the main derrick 3 and the auxiliary derrick 4 are both provided with impact-resistant springs 17.

Claims

1. The utility model provides a two horse head beam-pumping unit, includes main well base (1) and attaches well base (2) main well base (1) on install main derrick (3) attach well base (2) on install and attach derrick (4) main derrick (3) top activity be provided with main horse head (5) attach derrick (4) top activity be provided with and attach horse head (6), its characterized in that: main well base (1) on be equipped with drive main horse head (5) drive arrangement (7) of work main horse head (5) and attach horse head (6) between be connected with haulage rope (8) main horse head (5) and attach horse head (6) on still be equipped with respectively with polish rod connection's oil pumping rope (9), oil pumping rope (9) be double-rope oil pumping rope (9) and polish rod be connected one end and be fixed with main polished rod eye (10) and attach polished rod eye (11), still including fixing main square card (12) and attached square card (13) on polish rod (A), main square card (12) and main polished rod eye (10) contact, attached square card (13) and attach and be equipped with buffer spring (14) between leaving the clearance between polished rod eye (11).

2. The dual horse head pumping unit of claim 1, wherein: the double-rope type horse head traction device is characterized in that the middle of each of two ends of the traction rope (8) is a single rope, the double ropes at the two ends of the traction rope (8) are connected with the main horse head (5) and the accessory horse head (6) respectively, and the double ropes and the single rope are connected with the accessory horse head (13) through the main rope suspension device (10), the accessory rope suspension device (11), the main square clamp (12) and the accessory square clamp (13).

3. The dual horse head pumping unit of claim 1, wherein: the main horse head (5) and the accessory horse head (6) are fan-shaped horse heads, and the inner sides of the ends, close to the polished rod, of the main horse head (5) and the accessory horse head (6) are provided with abdicating notches (5-1).

4. The dual horse head pumping unit of claim 1 or 2, wherein: a group of rope hanging plates (15) for respectively installing an oil pumping rope (9) and a traction rope (8) are respectively arranged on the main horse head (5) and the accessory horse head (6), a pair of rope hanging grooves (15-1) for clamping double ropes are formed in the rope hanging plates (15), and a pair of locking plates (16) for fixing the double ropes are arranged on the rope hanging plates (15); the double ropes are steel wire ropes with opposite rotation directions.

5. The dual horse head pumping unit of claim 1, wherein: the main derrick (3) and the auxiliary derrick (4) are both provided with impact-resistant springs (17).

6. The dual horse head pumping unit of claim 1, wherein: drive arrangement (7) include motor (7-1), reduction gear (7-2), crank (7-3) and connecting rod (7-4), motor (7-1) be connected with reduction gear (7-2), crank (7-3) set up at reduction gear (7-2) output, connecting rod (7-4) set up at crank (7-3) free end and with main horse head (5) keep away from the one end of oil pumping rope (9) and be connected main well base (1) on still be equipped with brake (18).

7. The dual horse head pumping unit of claim 1, wherein: both ends of the main horse head (5) and the accessory horse head (6) are provided with hanging rings (5-2).