CN111140206A - Self-positioning non-beam pumping unit of flexible sucker rod - Google Patents
Self-positioning non-beam pumping unit of flexible sucker rod Download PDFInfo
- Publication number
- CN111140206A CN111140206A CN202010057146.5A CN202010057146A CN111140206A CN 111140206 A CN111140206 A CN 111140206A CN 202010057146 A CN202010057146 A CN 202010057146A CN 111140206 A CN111140206 A CN 111140206A
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- CN
- China
- Prior art keywords
- sucker rod
- base
- flexible sucker
- roller
- winch
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
Abstract
The invention relates to a self-positioning non-beam pumping unit of a flexible sucker rod, belonging to the technical field of petroleum field machinery, comprising a tower assembly, a longitudinal guide rail base assembly, a traction screw nut assembly and a winch roller assembly.
Description
Technical Field
The invention belongs to the technical field of petroleum field machinery, and particularly relates to a rod oil extraction machine.
Background
A walking beam-free oil pumping unit is initiated in the seventies of the last century, a steel wire rope is used as a flexible oil pumping rod, the technical field of rod oil extraction is introduced, and the walking beam-free oil pumping unit is mature day by day. Two oil extraction modes or two oil extraction operation modes of the flexible sucker rod are generated. The oil pumping unit is a 'full well' operation mode that a sleeve and an oil pipe are used as pump cylinders, a flexible sucker rod is completely wound in a rope accommodating groove of a winch drum, and during oil extraction, the flexible sucker rod provided with a rubber sealing plunger is placed to the bottom of a well from the well head and then is quickly lifted from the bottom of the well to the well head, and the 'full well' operation mode is generally called oil pumping. This kind of mode of operation, the flexible sucker rod of winding multilayer in the rope groove is held to the winch cylinder, still need be equipped with and forces rope-discharging system and direction fixed pulley well head positioning system, as the patent: the 'fixed oil fishing device' 00204034.4 is declared at 3/20/2000; 28 days 6.2010, declaring "intelligent bailing pumping unit" 201020262194. X; the device also comprises an oil fishing device capable of automatically discharging ropes, namely a winch overhead oil fishing device ZL2016.10133962.3 declared on 3, 10 months in 2016; it does not need to equip with a forced rope-arranging system, but sets two fixed pulleys to clamp and centralize the flexible sucker rod. To ensure effective alignment with the center of the wellhead. Due to the fact that multiple layers of ropes are arranged, extrusion among the ropes and extrusion among the layers are caused, the rope arrangement instability of the reciprocating lead screw sliding block can occur randomly, and the phenomena of rope disorder and rope gnawing are easily caused. Because the lifting stroke and the lowering stroke are in a full-well operation mode, the rope arrangement direction of each layer of rope needs to be changed once in one stroke, the rotating directions of the lead screw and the sliding block are unchanged in one stroke, but the traction direction needs to be changed once by one layer of rope, and the lead screw and the nut need to be specially made. The essence of the method is that a motor realizes the stroke reversing of lifting or lowering, a special lead screw and a nut realize the interlayer reversing of each layer of ropes when lifting or lowering, the special lead screw is called as a reciprocating lead screw (also called as a bidirectional lead screw) in the industry, the single-tooth slide block type nut which automatically reverses and reciprocates when the lead screw continuously rotates in the same direction is called as a slide block in the industry, the length of the slide block is less than the arc length (between 30 and 40 degrees) of the circumference 1/4 of a thread, the strength is limited, so the traction force is limited, the method is mainly used in the light industry, the chemical industry and the textile industry, when the load is large, especially a hoisting device needs enough traction force, the end points of the threads at two ends of the lead screw need smooth sharp corner transition, the two ends of the slide block also need smooth sharp corner transition, so the abrasion of the slide block generated when the slide block slides in a groove is inevitable, the operational reliability of heavy equipment is thought to be difficult to avoid, especially the risk of corner collision and damage of sharp corners of smooth transition.
The other mode is that the flexible sucker rod is combined with the rigid sucker rod, the lifting stroke length and the lowering stroke length are partial well sections and are completed by the flexible sucker rod, and the rigid sucker rod always reciprocates up and down in the well without being lifted out of the well mouth, so that the mode can be called as a partial well section mode. In this mode, the stroke length is randomly adjustable. Only one layer of flexible sucker rod is wound in the rope containing groove of the winch roller along the rotating direction of the Cbar groove. The total length is designed maximum stroke length, the fixed end rope length is added, the safety rope length for preventing collision with a well mouth and the occupied rope length of the ground space are reserved in a shaft, and the rigid sucker rod hanger is fixed at the end of the movable rope. It also has two kinds of models, one is the winch cylinder adds well head location fixed pulley type, as the patent: 5/4/2014, 201410184063.7, a short-type ultra-long stroke intelligent control hoisting type oil extraction system and a working method thereof; application for 'ultra-long stroke oil extraction device' on 12, month and 4, 2014, 201420750926.8; the other type is a tower frame type, and a winch roller is directly opposite to a wellhead structure, but a pair of clamping and positioning fixed pulleys are additionally arranged between the winch and the wellhead. See the patent: "a hoist oil recovery device", 2014 7 month 22 day application, application number: 201410360663.4, respectively; this type seemed to be visually different from the previous type in that the flexible sucker rod was driven straight into the center of the wellhead, but a pair of gripping fixed pulleys was also provided between the winch drum and the wellhead, indicating that the flexible sucker rod was not self-positioning and self-roping. However, due to the limitation of the stroke length, the winch roller is arranged above the wellhead, and the distance is determined by the height of the tower, so that the included angle between the width of the baffle plates at the two sides of the rope accommodating groove and the central point of the wellhead is difficult to ensure to be less than 3 degrees, and if so, the tower must have enough height. Therefore, there is a great need in the art for a new solution to the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the flexible sucker rod self-positioning beam-free pumping unit is pulled by a common standard lead screw, a variable-frequency speed regulating motor or a switched reluctance motor realizes frequent reversing of stroke and rope arrangement, the rope arrangement reversing is synchronous with the stroke reversing, the stroke length is randomly adjustable, the flexible sucker rod is self-positioned, only one layer of flexible sucker rod is wound in a rope accommodating groove of a winch roller, and the flexible sucker rod self-positioning beam-free pumping unit has the characteristics of simple structure, convenience in operation, reliable performance, firmness and durability, and is four outstanding.
Self-align no beam-pumping unit of flexible sucker rod, characterized by: comprises a tower frame assembly, a longitudinal guide rail and base assembly, a traction screw rod and nut assembly and a winch roller assembly,
the longitudinal guide rail and base assembly comprises a longitudinal abdicating guide rail and a whole machine base, and the longitudinal abdicating guide rail is arranged on the prefabricated cement foundation surface of the well site;
the tower assembly comprises transverse rails, transverse rail bases, trusses and abdicating adjustable roller boxes, wherein the abdicating adjustable roller boxes are arranged into four groups and are respectively arranged at the lower ends of four upright posts of the trusses, and the transverse rail bases are fixedly connected with the trusses and are arranged at the tops of the trusses; the transverse rail is arranged on the upper part of the transverse rail base;
the traction screw rod and nut assembly comprises a standard screw rod, a standard nut and a fixing frame, wherein the standard screw rod is matched with the standard nut; the fixing frame is arranged on the transverse rail base and used for fixing the standard lead screw and connecting the standard screw;
the winch roller assembly comprises a winch roller, a flexible sucker rod, a rigid sucker rod hanger, a planetary reducer, a variable frequency speed regulating motor, a cooling fan and a base roller, wherein the base roller is arranged on a transverse rail, and a base, a left bearing seat and a right bearing seat are arranged at the upper part of the base roller; the winch drum is arranged on the upper part of the base through a left bearing seat and a right bearing seat; the flexible sucker rod is arranged on the winch drum; the rigid sucker rod hanger is arranged at the end part of the live rope end of the flexible sucker rod; the variable-frequency speed regulating motor is respectively connected with the cooling fan and the planetary reducer, the variable-frequency speed regulating motor and the winch roller are arranged coaxially.
The oil pipe packing box is arranged at the wellhead, a sleeve arranged underground and an oil pipe fixedly arranged in the sleeve through an oil pipe hanger, wherein an oil pipe four-way joint is arranged at the upper part of the oil pipe, a pump barrel is arranged at the lower part of the oil pipe, and a fixed valve is arranged at the bottom of the pump barrel; the upper part of the sleeve is provided with a sleeve four-way joint.
And a centi-Past spiral groove is arranged on the outer cylindrical surface at the bottom of the rope accommodating groove of the winch roller, the diameter of the spiral groove is the same as that of the wound flexible sucker rod, and the depth of the spiral groove is smaller than the radius of the flexible sucker rod.
The lower part of the rigid sucker rod hanger is provided with a rigid sucker rod, the rigid sucker rod is connected with a plunger through a plunger pump pull rod, the plunger is arranged inside a pump cylinder, and the lower part of the plunger is provided with a traveling valve.
Through the design scheme, the invention can bring the following beneficial effects: the self-positioning beam-free pumping unit of flexible sucker rod is drawn by general standard screw rod, and the frequency conversion speed-regulating motor or switched reluctance motor can implement frequent reversal of stroke and rope-arranging, and the rope-arranging reversal is synchronous with stroke reversal, and its stroke length can be arbitrarily regulated, and the flexible sucker rod is self-positioned, and only one layer of flexible sucker rod is winded in rope-receiving groove of winch drum.
Drawings
FIG. 1 is a schematic view of the self-positioning walking-beam-free pumping unit of the flexible sucker rod of the present invention.
In the figure, 1-a fixed frame, 2-a standard screw, 3-a standard screw, 4-a left bearing seat, 5-a flexible sucker rod, 6-a winch roller, 7-a right bearing seat, 8-a planetary reducer, 9-a variable frequency speed regulating motor, 10-a cooling fan, 11-a base, 12-a base roller, 13-a transverse track, 14-a transverse track base, 15-a wellhead packing box, 16-an oil pipe cross joint, 17-a truss, 18-an oil pipe hanger, 19-a sleeve pipe cross joint, 20-an abdication adjustable roller box, 21-a longitudinal abdication guide rail, 22-a rigid sucker rod hanger, 23-an oil pipe, 24-a rigid sucker rod, 25-a plunger pump pull rod, 26-a sleeve pipe, 27-a plunger, 28-a pump barrel, 29-swimming valve and 30-fixed valve.
Detailed Description
A self-positioning walking-beam-free pumping unit of a flexible sucker rod is shown in figure 1 and comprises a winch roller assembly, a tower assembly, a longitudinal guide rail base assembly and a traction screw nut assembly, and meanwhile, in order to match the use and operation modes of the self-positioning walking-beam-free pumping unit of the flexible sucker rod, related oil extraction well heads and underground accessories need to be matched.
The winch roller assembly consists of a winch roller 6, a flexible sucker rod 5, a rigid sucker rod hanger 22, a planetary reducer 8, a variable frequency speed regulating motor 9, a cooling fan 10 and a base roller 12. The outer cylindrical surface of the rope containing groove bottom of the winch roller 6 is processed with a centiPas spiral groove, and the diameter of the spiral groove is equal to that of the wound flexible sucker rod 5. The depth of the spiral groove is smaller than the radius of the flexible sucker rod. The planetary reducer 8 and the variable frequency speed regulating motor 9 are connected with the winch drum 6 by the same axial lead, one end of the flexible sucker rod 5 is fixed, the other end is a live rope end, the live rope end is wound along the rotating direction of the Cnbas groove, and the end part of the live rope end is provided with a rigid sucker rod hanger 22. The winch roller assembly and the traction screw nut assembly are arranged on the tower frame assembly.
The variable frequency speed regulating motor 9 may also be a switched reluctance motor.
The tower assembly consists of a transverse rail 13, a transverse rail base 14, a middle truss 17 and four sets of abdicating adjustable roller boxes 20 at the lower part, wherein the transverse rail is ensured to be horizontal. And the two tracks are parallel to each other.
The traction screw rod and nut assembly is composed of a standard screw rod 3, a standard nut 2 and a screw rod and nut transmission auxiliary fixing frame 1, the screw rod and the nut are connected with a winch drum shaft by the same axial lead, the number of screw thread coincidence turns of the screw rod and the nut is determined by calculation, sufficient strength and abrasion resistance are guaranteed, and the transmission auxiliary fixing frame is fixed on the upper plane of the tower frame. If the flexible sucker rod is a single-head screw rod or a multi-head nut, the screw pitch is equal to the diameter of the wound flexible sucker rod, and if the flexible sucker rod is a multi-head screw rod or a multi-head nut, the lead is also equal to the diameter of the wound flexible sucker rod.
The longitudinal abdicating guide rail base assembly consists of a longitudinal abdicating guide rail 21 and a whole machine base. The longitudinal guide rail base assembly is arranged on a cement foundation prefabricated on a well site.
The oil extraction well head and the underground oil extraction fittings are composed of a well head packing box 15, an oil pipe hanger 18, an oil pipe cross 16, a sleeve cross 19, a sleeve 26, an oil pipe 23, a plunger 27, a pump cylinder 28, a traveling valve 29, a fixed valve 30, a plunger pump pull rod 25 and a rigid sucker rod 24, wherein the flexible sucker rod 5 is connected with the rigid sucker rod 24 through the rigid sucker rod hanger 22, the rigid sucker rod 24 is connected with the plunger pump pull rod 25 to drive the plunger to reciprocate up and down in the pump cylinder to extract crude oil, and the oil pipe cross 16 is conveyed to a ground manifold through an oil pipe 23 pipeline.
The installation process of the flexible sucker rod self-positioning walking-beam-free pumping unit at the wellhead comprises the following steps of taking the 15 axial lead of a packing box of the oil extraction wellhead as a reference, and installing a longitudinal abdicating guide rail base assembly on the basis of cement prefabricated in a well site to ensure that a longitudinal abdicating guide rail 21 is horizontal.
And (3) installing a tower assembly on the longitudinal abdicating guide rail 21 by taking the axial lead of the wellhead packing box 15 as a reference, and ensuring that the truss 17 is perpendicular to the longitudinal abdicating guide rail 21.
Installing the winch roller assembly, wherein a winch roller 6 is installed on a base 11 through a left bearing seat 4 and a right bearing seat 7, after a planetary reducer 8 is connected to the right end of a winch roller shaft, a variable frequency speed regulating motor 9 and a cooling fan 10 are connected, four base rollers 12 of the base 11 are installed in a transverse rail 13 of a tower assembly, a flexible sucker rod 5 is fixed at any one end in the winch roller 6 and a rope containing groove and is wound in the rotating direction of a centibus groove, a rigid sucker rod hanger 22 is fixed at the end of a live rope, and the rigid sucker rod hanger 22 is aligned to the central point of a wellhead packing box 15. Starting the variable frequency speed regulating motor 9, hanging the flexible sucker rod 5 and the rigid sucker rod 24 through the rigid sucker rod hanger 22, lowering the well for reserving the length, and stopping the well.
Fixing the fixing frame 1 on a transverse track base 14 of a tower assembly, and fixing a standard lead screw 3 at the left end of a drum shaft of a winch drum 6; the standard screw 2 is screwed into the standard screw 3, and then the standard screw 2 is fixed on the screw and screw transmission pair fixing frame 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. Self-align no beam-pumping unit of flexible sucker rod, characterized by: comprises a tower frame assembly, a longitudinal guide rail and base assembly, a traction screw rod and nut assembly and a winch roller assembly,
the longitudinal guide rail and base assembly comprises a longitudinal abdicating guide rail (21) and a whole machine base, and the longitudinal abdicating guide rail (21) is arranged on a well site prefabricated cement foundation surface;
the tower assembly comprises transverse rails (13), transverse rail bases (14), a truss (17) and abdicating adjustable roller boxes (20), wherein the abdicating adjustable roller boxes (20) are arranged into four groups and are respectively arranged at the lower ends of four upright posts of the truss (17), and the transverse rail bases (14) are fixedly connected with the truss (17) and are arranged at the top of the truss (17); the transverse rail (13) is arranged on the upper part of the transverse rail base (14);
the traction screw rod and nut assembly comprises a standard screw rod (3), a standard nut (2) and a fixing frame (1), wherein the standard screw rod (3) is matched with the standard nut (2); the fixing frame (1) is arranged on the transverse rail base (14) and used for fixing the standard screw rod (3) and connecting the standard screw nut (2);
the winch roller assembly comprises a winch roller (6), a flexible sucker rod (5), a rigid sucker rod hanger (22), a planetary reducer (8), a variable-frequency speed regulating motor (9), a cooling fan (10) and a base roller (12), wherein the base roller (12) is arranged on a transverse rail (13), and a base (11), a left bearing seat (4) and a right bearing seat (7) are arranged at the upper part of the base roller (12); the winch drum (6) is arranged on the upper part of the base (11) through a left bearing seat (4) and a right bearing seat (7); the flexible sucker rod (5) is arranged on the winch drum (6); the rigid sucker rod hanger (22) is arranged at the end part of the live rope end of the flexible sucker rod (5); the variable-frequency speed-regulating motor (9) is respectively connected with the cooling fan (10) and the planetary reducer (8), the variable-frequency speed-regulating motor (9) and the winch roller (6) are arranged with the same axial lead.
2. The flexible sucker rod self-positioning walking-beam-free pumping unit of claim 1, which is characterized in that: the well head packing box (15) is arranged at the well head, a sleeve (26) is arranged underground, and an oil pipe (23) is fixedly arranged in the sleeve (26) through an oil pipe hanger (18), an oil pipe four-way joint (16) is arranged at the upper part of the oil pipe (23), a pump barrel (28) is arranged at the lower part of the oil pipe (23), and a fixed valve (30) is arranged at the bottom of the pump barrel; the upper part of the sleeve (26) is provided with a sleeve four-way joint (19).
3. The flexible sucker rod self-positioning walking-beam-free pumping unit of claim 1, which is characterized in that: and a centi-Pas spiral groove is arranged on the outer cylindrical surface at the bottom of the rope accommodating groove of the winch roller (6), the diameter of the spiral groove is the same as that of the wound flexible sucker rod (5), and the depth of the spiral groove is smaller than the radius of the flexible sucker rod (5).
4. The flexible sucker rod self-positioning walking-beam-free pumping unit of claim 1, which is characterized in that: the lower part of rigid sucker rod hanger (22) is provided with rigid sucker rod (24), and rigid sucker rod (24) are connected with plunger (27) through plunger pump pull rod (25), plunger (27) set up inside pump barrel (28), and the lower part of plunger (27) is provided with traveling valve (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010057146.5A CN111140206A (en) | 2020-01-19 | 2020-01-19 | Self-positioning non-beam pumping unit of flexible sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010057146.5A CN111140206A (en) | 2020-01-19 | 2020-01-19 | Self-positioning non-beam pumping unit of flexible sucker rod |
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| Publication Number | Publication Date |
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| CN111140206A true CN111140206A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010057146.5A Pending CN111140206A (en) | 2020-01-19 | 2020-01-19 | Self-positioning non-beam pumping unit of flexible sucker rod |
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| CN (1) | CN111140206A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663925A (en) * | 2020-07-22 | 2020-09-15 | 吕学民 | Intelligent oil pumping device with ultra-long stroke |
| CN111677484A (en) * | 2020-07-22 | 2020-09-18 | 吕学民 | Intelligent ultra-long stroke oil production system |
| CN114837623A (en) * | 2022-05-05 | 2022-08-02 | 陈跃 | Oil extraction device and method based on rod track pump |
-
2020
- 2020-01-19 CN CN202010057146.5A patent/CN111140206A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663925A (en) * | 2020-07-22 | 2020-09-15 | 吕学民 | Intelligent oil pumping device with ultra-long stroke |
| CN111677484A (en) * | 2020-07-22 | 2020-09-18 | 吕学民 | Intelligent ultra-long stroke oil production system |
| CN111677484B (en) * | 2020-07-22 | 2023-08-18 | 梅河口市弘业无缝钢管有限公司 | Intelligent ultra-long stroke oil extraction production system |
| CN111663925B (en) * | 2020-07-22 | 2024-02-13 | 梅河口市弘业无缝钢管有限公司 | Super long stroke intelligent oil pumping device |
| CN114837623A (en) * | 2022-05-05 | 2022-08-02 | 陈跃 | Oil extraction device and method based on rod track pump |
| CN114837623B (en) * | 2022-05-05 | 2023-08-29 | 陈跃 | Oil extraction device and method based on rod rail pump |
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Effective date of registration: 20221109 Address after: 138000 Yada industrial concentration area, Ning Jiang District, Songyuan, Jilin Applicant after: SONGYUAN CITY FORWARD PETROLEUM ENGINEERING MACHINERY Co.,Ltd. Address before: 138000 Room 102, building 2, Jinjiang Community Bureau, Fanrong street, Ningjiang district, Songyuan City, Jilin Province Applicant before: Hu Yong |
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