CN218971160U

CN218971160U - Intelligent control long-stroke winch type beam-free pumping unit for flood discharge area and dry land

Info

Publication number: CN218971160U
Application number: CN202221166496.6U
Authority: CN
Inventors: 胡勇
Original assignee: Songyuan City Forward Petroleum Engineering Machinery Co ltd
Current assignee: Songyuan City Forward Petroleum Engineering Machinery Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2023-05-05
Anticipated expiration: 2032-05-16

Abstract

A dual-purpose intelligent control long-stroke winch type beam-free pumping unit for flood discharge area and dry land belongs to the technical field of petroleum mining machinery and comprises a winch drum assembly, a fixed double-pulley system, a tower assembly, a well repairing abdication mechanism, an intelligent control and driving system and an oil extraction wellhead system. The utility model eliminates fatigue damage and friction damage caused by bending and extrusion alternating stress formed on the fixed pulley and on two sides of the rope inlet of the rope groove of the fixed pulley. The transmission structure is simplified, the transmission chain is reduced, the moving parts and lubrication points are reduced, the safety risk points for maintenance, maintenance and regulation are greatly reduced, and the running reliability and the service life are further improved. When the intelligent control box is placed on the upper platform of the tower, and is used in the marsh land of the flood discharge area, the height of the upper platform of the frame from the ground is larger than the history highest water level of the marsh land of the flood discharge area, so that the pumping unit can safely pass the flood season, the purpose of not stopping production in the flood season is realized, and the two purposes of the flood discharge area and the dry land are achieved.

Description

Intelligent control long-stroke winch type beam-free pumping unit for flood discharge area and dry land

Technical Field

The utility model belongs to the technical field of petroleum mining machinery, and particularly relates to an intelligent control long-stroke winch type beam-free pumping unit for both a flood discharge area and a dry land.

Background

The winch drum is used to wind steel wire rope to replace polished rod or rigid sucker rod for oil extraction, and is one kind of rod oil extraction machine with two kinds of horizontal tower.

In recent years, there have been batches of "horizontal" models running in Daqing oilfield production, while "vertical tower" models have had very few prototypes, or none. The horizontal machine type machine operates on site for 3-4 years, the extrusion of the steel wire rope at the rope groove edge of the guide fixed pulley and the rope outlet position of the roller is exposed, bending and friction damage are serious, the service life of the steel wire rope and the reliability of equipment operation have problems, and particularly the flexible polished rod of the steel wire rope for wrapping high-molecular polymers exist.

Application number in "vertical" tower model: 2021224466884 the name is 'tower type intelligent control long-stroke beam-free pumping unit', although solving some problems existing in horizontal type machine types, the 'moving double pulley' system which is built by the tower type intelligent control long-stroke beam-free pumping unit belongs to winch rope arrangement mechanisms, and is complex in structure and high in manufacturing cost and maintenance cost.

In addition, whether the machine is of a horizontal type or a vertical type, the problem that continuous production cannot be realized due to shutdown in flood discharge areas and low-lying flood areas exists, and therefore a novel technical scheme is needed in the prior art to solve the problem.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the intelligent control long-stroke winch type beam-free pumping unit for the flood discharge area and the dry land is provided, and is used for solving the problems that the existing tower type intelligent control long-stroke beam-free pumping unit is complex in structure and high in manufacturing cost and maintenance cost; and the problem that continuous production in flood discharge areas and low-lying flood areas cannot be realized in both horizontal and vertical machine types is solved.

The intelligent control long-stroke winch type beam-free pumping unit comprises a winch drum assembly, a fixed double-pulley system, a tower assembly, a well repairing abdication mechanism, an intelligent control and driving system and an oil extraction wellhead system, wherein the upper plane of the tower assembly is a frame upper platform, the lower part of the tower assembly is connected with the well repairing abdication mechanism, the winch drum assembly and the intelligent control and driving system are arranged on the frame upper platform and are connected with the winch drum assembly, a roller body of the winch drum assembly is provided with a centipoises spiral groove on a cylindrical surface in a rope containing groove of the winch drum assembly, one end of a flexible polish rod of the winch drum assembly is fixedly connected with one end of the roller body, the flexible polish rod is embedded in the centipoises spiral groove and surrounds the outer cylindrical surface of the roller body along the groove, and the other end of the flexible polish rod sequentially passes through a pulley rope groove hole between the double pulleys of the fixed double-pulley system and the oil extraction wellhead system and is fixedly connected with a rigid sucker rod hanger;

the fixed double-pulley system is fixedly arranged in the middle of the tower assembly and comprises a left fixed pulley, a right fixed pulley and a pulley fixed base; the left fixed pulley and the right fixed pulley are respectively arranged on the tower frame through pulley fixed bases, the middle points of the connecting lines of the circle centers of the rope grooves of the left fixed pulley and the right fixed pulley are downwards aligned with the center of the oil extraction wellhead, the middle points of the total circle number of flexible polish rod strokes in the roller body of the winch roller assembly are upwards aligned, and an included angle alpha formed by the connecting lines of the tangent points of the connecting lines of the circle centers of the rope grooves of the left fixed pulley and the right fixed pulley, the tangent points of the connecting lines of the tangent points of the first circle of the winding rope outlet positions of the roller body and the connecting lines of the circle centers of the rope grooves of the left fixed pulley and the right fixed pulley, and the connecting lines of the tangent points of the last circle of the flexible polish rod strokes of the roller body are smaller than or equal to 3 degrees.

When the tower assembly is arranged in the marsh land of the flood discharge area, the height of the upper platform of the frame from the ground is larger than the highest historical water level of the marsh land of the flood discharge area.

Through the design scheme, the utility model has the following beneficial effects:

the winch drum assembly is fixed on the upper platform of the frame of the wellhead tower, so that fatigue damage and friction damage caused by bending and extrusion alternating stress formed on the fixed pulleys and two sides of a rope inlet position of a rope groove of a horizontal fixed pulley are eliminated. The transmission structure is simplified, the transmission chain is reduced, the moving parts and lubrication points are reduced, the safety risk points for maintenance, maintenance and regulation are greatly reduced, and the running reliability and the service life are further improved. The utility model has the advantages of extremely simple and compact structure, convenient manufacture, installation and maintenance, greatly reduced manufacturing cost and later maintenance cost, effectively eliminated and reduced fatigue damage degree of the flexible polished rod of the steel wire rope, prolonged service life of the flexible polished rod of the steel wire rope, increased reliability of equipment operation, and firmness and durability. The intelligent control box is placed on a platform on the tower, and can be used in a flood discharge area and a dry land. When the pumping unit is used in the marsh land of the flood discharge area, the height of the upper platform of the frame from the ground is larger than the highest historical marsh land water level of the flood discharge area, so that the pumping unit can safely transit the flood season, and the aim of not stopping production in the flood season is fulfilled. In the anhydrous area, the intelligent control box is located in the high position, and can also play a role in ventilation and cooling. The height of the upper platform of the frame is properly heightened, the angle alpha is reduced, the fatigue failure strength of the flexible polished rod of the steel wire rope is reduced, the service life is prolonged, and the occupied area is reduced.

Drawings

The utility model is further described with reference to the drawings and detailed description which follow:

fig. 1 is a schematic diagram of a dual-purpose intelligent control long-stroke winch type beam-free pumping unit for flood discharge area and dry land.

Fig. 2 is a schematic diagram of an angle alpha in the intelligent long-stroke winch type beam-free pumping unit for flood discharge area and dry land.

In the figure, 1-winch drum assembly, 2-fixed two-pulley system, 3-tower assembly, 4-workover rig, 5-intelligent control and drive system, 6-wellhead system, 11-winch drum assembly base, 12-bearing housing, 13-drum shaft, 14-drum body, 15-flexible polished rod, 21-left fixed pulley, 22-right fixed pulley, 23-pulley fixed base, 31-tower frame, 32-on-frame platform, 33-ladder, 34-tower bottom fixed profile, 35-guardrail, 41-yielding roller box, 42-yielding track, 51-intelligent control box, 52-load sensor, 53-planetary reducer 54-variable frequency speed motor, 55-electromagnetic brake, 56-revolution encoder, 61-sleeve, 62-paraffin removal valve, 63-oil pipe tee, 64-sleeve four-way, 65-oil pipe hanger, 66-packing box, 67-rigid oil pumping rod hanger, 68-rigid pumping rod, 69-oil pipe, 610-pump pull rod, 611-plunger, 612-pump barrel.

Detailed Description

As shown in fig. 1, the intelligent control long-stroke winch type beam-free pumping unit for flood discharge area and dry land comprises a winch drum assembly 1, a fixed double pulley system 2, a tower assembly 3, a well repair abdication mechanism 4, an intelligent control and driving system 5 and an oil extraction wellhead system 6.

The tower assembly 3 comprises a tower frame 31, a frame upper platform 32, a ladder 33 and tower bottom fixed section steel 34, and the tower assembly 3 is fixedly arranged above the oil extraction wellhead through the tower bottom fixed section steel 34; a frame upper platform 32 is fixedly arranged at the upper part of the tower frame 31, a ladder 33 is arranged at the side part of the tower frame 31, and tower bottom fixing section steel 34 is arranged at the lower part of the tower frame 31; the fixed double pulley system 2 is arranged in the middle of the tower assembly 3; the upper part of the frame upper platform 32 is provided with a guard rail 35.

The winch drum assembly 1 is arranged on the upper part of the frame upper platform 32, and the winch drum assembly 1 comprises an assembly base 11, a bearing seat 12, a drum shaft 13, a drum body 14 and a flexible polished rod 15; the assembly base 11 is fixedly arranged on the upper part of the frame upper platform 32, and bearing seats 12 are respectively and fixedly arranged at two ends of the winch drum assembly base 11; the two ends of the roller shaft 13 are respectively connected with the bearing seat 12, and the middle part of the roller shaft 13 is sleeved with a roller body 14; a centibas spiral groove is arranged on the cylindrical surface in the rope containing groove of the roller body 14; one end of the flexible polish rod 15 is fixedly connected with one end of the roller body 14, the flexible polish rod 15 is embedded in the centibaster spiral groove and surrounds the outer cylindrical surface of the roller body 14, and the other end of the flexible polish rod 15 sequentially passes through the rope groove between the two pulleys of the fixed double pulley system 2 and the paraffin removal valve 62, the packing box 66 and the oil pipe hanging seat 65 of the oil extraction wellhead system 6 and then is connected with the rigid sucker rod 68 through the rigid sucker rod hanger 67;

the workover yielding mechanism 4 comprises a yielding roller box 41 and a yielding track 42; the yielding tracks 42 are arranged on two sides of the oil extraction wellhead system 6; the yielding roller boxes 41 are fixedly installed on two sides of the bottom of the tower frame 31, and the yielding roller boxes 41 are connected with the yielding track 42 through rollers. Before well repair, the flexible polish rod 15 withdrawing mechanism of the fixed double pulley system 2 is adjusted, after the rigid sucker rod hanger 67 is lifted up and the rigid sucker rod 68 is removed, the fixing bolt at the lower part of the tower frame 31 is removed, and the tower assembly 3 is withdrawn, so that well repair abdication is completed.

The intelligent control and driving system 5 comprises an intelligent control box 51, a load sensor 52, an electromagnetic brake 56, a revolution encoder 55, a planetary reducer 54 and a variable-frequency speed regulating motor 53; the output end of the planetary reducer 54 is connected with one end of the drum shaft 13, the output end of the variable-frequency speed regulating motor 53 is connected with the input end of the planetary reducer 54, and the revolution encoder 55 and the electromagnetic brake 56 are arranged on the other side; the load sensor 52 is installed under the two bearing seats 12; the intelligent control box 51 is electrically connected with the load sensor 52, the electromagnetic brake 56, the revolution encoder 55 and the variable-frequency speed regulating motor 53 respectively;

the oil extraction wellhead system 6 comprises a sleeve 61, a paraffin removal valve 62, an oil pipe tee 63, a sleeve four-way 64, an oil pipe hanging seat 65, a packing box 66, a rigid sucker rod hanger 67, a rigid sucker rod 68, an oil pipe 69, a pump pull rod 610, a plunger 611 and a pump barrel 612, wherein all rods and pipes of the oil extraction wellhead system 6 are arranged on an axis; the oil pipe 69 is arranged in the oil extraction wellhead, the oil pipe 69 is sequentially provided with a paraffin removal valve 62, an oil pipe tee 63 and a sleeve four-way 64 from top to bottom, and the upper part of the oil pipe 69 is provided with a packing box 66; the tubing hanger 65 is mounted on the sleeve four-way 64; the oil pipe 69 is fixed at the upper part in the sleeve 61 through the oil pipe hanging seat 65, and the lower part of the oil pipe 69 is fixedly connected with the pump cylinder 612; the upper end of the rigid sucker rod 68 is connected with the flexible polish rod 15 penetrating through the pulley rope groove of the fixed double pulley system 2 through the rigid sucker rod hanger 67, and the lower end of the rigid sucker rod 68 is fixedly connected with the upper end of the pump pull rod 610; the lower end of the pump pull rod 610 is fixedly connected with the upper end of the plunger 611; the plunger 611 reciprocates up and down within the barrel 612.

During installation, the sleeve four-way joint 64 for fixing the oil pipe hanging seat 65 is firstly installed at the ground end of the sleeve 61, then the pump cylinder 612 is put down in the sleeve 61, the upper end of the pump cylinder 612 is connected with the oil pipe 69, the oil pipe hanging is installed at the ground end of the oil pipe 69, then the plunger 611 and the pump pull rod 610 are put down in the oil pipe 69, the upper end of the pump pull rod 610 is connected with the rigid sucker rod 68 to a wellhead, the rigid sucker rod 68 is hung on the oil pipe hanging 65 by a cushion fork, the backward-withdrawing yielding tower assembly 3 is moved forward to a preset position, and the center point of the total stroke length is aligned with the center of the wellhead paraffin removal valve 62. The free end of the flexible polish rod 15 is passed through a paraffin removal valve 62 and a tubing tee 63. After the rigid sucker rod hanger 67 is fixed at the free end of the flexible polished rod 15, the male buckle of the rigid sucker rod 68 on the cushion fork is connected by the female buckle connector of the rigid sucker rod hanger 67, and then the male buckle is connected on the flange on the oil pipe tee 63 and the oil pipe hanging seat 65, and is fastened. The packing box 66 is connected with the oil pipe tee 63, and then the paraffin removal valve 62 is connected with the packing box 66. And the operation can be debugged after the installation is finished.

The fixed double pulley system 2 comprises a left fixed pulley 21, a right fixed pulley 22 and a pulley fixed base 23; the left and right

fixed pulleys

21 and 22 are mounted on the tower frame 31 through pulley fixing bases 23, respectively. When the device works, the left fixed pulley 21 and the right fixed pulley 22 move to the center of the pulley rope groove to be aligned with the center of the wellhead, so that the centers of the two pulley rope grooves are fixed and locked after ensuring a distance of 1-2 mm. When the well repairing operation is out of position, the left fixed pulley 21 and the right fixed pulley 22 are fixed after being respectively moved leftwards and rightwards by a distance larger than the diameter of the flexible polish rod 15.

The midpoint of the connecting line of the centers of the two pulley rope grooves of the fixed double pulley system 2 is aligned downwards to the center of the oil extraction wellhead system 6, and is aligned upwards to the midpoint of total turns of the inner flexible polish rod 15 of the centipoises spiral groove on the roller body 14.

The midpoint of the total circle included in the total stroke length of the flexible polish rod 15 is a tangent point, and at this time, the tangent line formed by the flexible polish rod 15 and the cylindrical surface of the rope containing groove of the roller body 14 is aligned downwards to the center of the paraffin removal valve 62 of the wellhead system 6. The drum shaft 13 is perpendicular to the horizontal plane where the shafts of the left and right fixed

pulleys

21, 22 are located. And as can be seen from fig. 1, at the midpoint of the total number of turns of the travel, the flexible polish rod 15 forms tangential tangent points with the cylindrical surface of the rope containing groove of the roller body 14, and the midpoint of the central line connecting the left fixed pulley 21 and the right fixed pulley 22 and the central point of the paraffin removal valve 62 are collinear. The included angle alpha formed by the connecting line from the midpoint of the center line of the two wheels of the left fixed pulley 21 and the right fixed pulley 22 to the starting point of one stroke of the flexible polish rod 15 in the rope containing groove of the roller body 14 and the connecting line of the same stroke end is smaller than or equal to 3 degrees, and the schematic diagram of the included angle alpha is shown in figure 2, so that the fatigue failure resistance of the flexible polish rod 15 is improved.

Claims

1. The intelligent control long-stroke winch type beam-free pumping unit for flood discharge area and dry land comprises a winch drum assembly (1), a fixed double-pulley system (2), a tower assembly (3), a well repair abdication mechanism (4), an intelligent control and driving system (5) and an oil extraction wellhead system (6), wherein the upper plane of the tower assembly (3) is a frame upper platform (32), the lower part of the tower assembly (3) is connected with the well repair abdication mechanism (4), the winch drum assembly (1) is mounted on the frame upper platform (32), the intelligent control and driving system (5) is connected with the winch drum assembly (1), a roller body (14) of the winch drum assembly (1) is provided with a centipoises spiral groove on the cylindrical surface in a rope containing groove of the winch drum assembly, one end of a flexible polish rod (15) of the winch drum assembly (1) is fixedly connected with one end of the roller body (14), the flexible polish rod (15) is embedded in the centipoises spiral groove and surrounds the cylindrical surface of the roller body (14), the other end of the flexible polish rod (15) sequentially passes through the outer circle of the cylindrical surface of the roller body (14), and penetrates through the fixed double-pulley system (2) and is fixedly connected with a double-pulley system (2) and a double-pulley hole (67) of the oil extraction wellhead (2) in turn, and the double-pulley system (2) is fixedly connected with the fixed on the well wellhead (2) and comprises a double-pulley system (2) and a double-pulley rope device, A right fixed pulley (22) and a pulley fixed base (23); the left fixed pulley (21) and the right fixed pulley (22) are respectively arranged on the tower frame (31) through pulley fixed bases (23), and are characterized in that:

the intelligent control and driving system (5) is arranged on the upper frame platform (32); when the tower assembly (3) is arranged in the marsh land of the flood discharge area, the height of the upper frame platform (32) from the ground is larger than the highest historical marsh land water level of the flood discharge area;

the midpoint of the connecting line of the center of the rope grooves of the left fixed pulley (21) and the right fixed pulley (22) is aligned downwards to the center of the oil extraction wellhead, the midpoint of the total number of strokes of the flexible polish rod (15) wound in the centibax spiral groove on the roller body (14) of the winch roller assembly (1) is aligned upwards, and an included angle alpha formed from the midpoint of the connecting line of the center of the rope grooves of the left fixed pulley (21) and the right fixed pulley (22) to the tangent point connecting line of the first circle of the rope outlet position of the flexible polish rod (15) in the roller body (14) and the midpoint of the connecting line of the center of the rope grooves of the left fixed pulley (21) and the right fixed pulley (22) to the tangent point connecting line of the last circle of the rope outlet position of the flexible polish rod (15) in the roller body (14) is smaller than or equal to 3 degrees.