CN214303783U

CN214303783U - Carbon fiber lifting rope suspension polished rod system of oil pumping unit

Info

Publication number: CN214303783U
Application number: CN202022361225.3U
Authority: CN
Inventors: 李余斌; 郭瑞华; 周绍强; 胡洪浩; 王东生
Original assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Zhuangxi Oil Extraction Plant
Current assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Zhuangxi Oil Extraction Plant
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-09-28
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a carbon fiber lifting rope suspension polished rod system of a pumping unit, which comprises lifting rings, lifting ropes and an upper plate, wherein the two lifting ropes are arranged, the upper ends of the lifting ropes are connected with the lifting rings, and the upper plate is arranged on the lifting ropes; the lifting rope is a carbon fiber rod; an upper plate middle hole used for penetrating through the polish rod is formed in the center of the upper plate, the inner diameter of the upper plate middle hole is larger than the outer diameter of the polish rod, a first square clamp is mounted on the polish rod, and the square clamp is limited and blocked by the upper surface of the upper plate in the axial direction. Grooves for clamping the carbon fiber rods are formed in the two end portions of the upper disc, screw holes are formed in the grooves, jackscrews are arranged in the screw holes, and the carbon fiber rods are tightly pressed and fixed on the upper disc by the jackscrews. The carbon fiber rod comprises a rod body, an upper clamping head at the upper end of the rod body and a lower clamping head at the lower end of the rod body, wherein the outer diameter of the upper clamping head and the diameter of the lower clamping head are both larger than the diameter of the rod body. The carbon fiber rod does not twist and deform during operation. The upper disc and the lower disc of the rope suspension device are convenient to disassemble and safe to operate. The anti-breaking square clamp prevents the well from being broken to cause blowout pollution. The carbon fiber rod is small in stress deformation, and the polished rod hanger is kept horizontal and the polished rod is centered.

Description

Carbon fiber lifting rope suspension polished rod system of oil pumping unit

Technical Field

The utility model belongs to the technical field of beam-pumping unit lifting rope technique and specifically relates to a beam-pumping unit carbon fiber lifting rope hangs polished rod system.

Background

The lifting rope of the oil pumping unit is made of a common steel wire rope, is a flexible connecting piece for connecting the horsehead and the polish rod, is divided into a single rope and a double rope, is a key part of the oil pumping unit, directly influences the running timeliness of the oil pumping unit by the quality of the hair braid, and directly relates to the service life of the hair braid whether the lubrication and maintenance are good or not. The beam-pumping unit is in field work, suffer the erosion of sleet wind frost, the operation in-process, every strand of twist rope and the lining core of hair pigtail all have friction and wearing and tearing each other, in rainy season and bad weather, the lifting rope lubrication can aggravate wearing and tearing, the broken wire, rust and corrode and cause the broken wire, strand breakage scheduling problem, the incident of breaking takes place even, in case the lifting rope fracture, can stretch out the bent polished rod, it causes the blowout pollution to draw the well head, the down time is long, take place the sand card well that lies. Because the winding directions of the lifting ropes are the same, the lifting ropes are broken, extended and contracted after the well is opened to drive the rope hanger to twist and the polished rod back-off well accounts for 10 percent, and the sucker rod group is broken and separated from the lying well due to long-term twisting. Meanwhile, the phenomenon that a smooth rod is wound by a hair braid after load unloading easily occurs, the labor intensity of field construction is increased, the well stopping time of an oil well is prolonged, and meanwhile, operators need to drive a prying bar and a pipe wrench for combination to adjust in order to eliminate winding, so that great unsafe factors exist, and personal injury accidents are easily caused. Therefore, the invention of a non-corrosive, high-strength, non-twisting hoist rope is very urgent. The carbon fiber has the advantages that: the axial strength and modulus of the material are high, the density is low, the specific performance is high, creep is avoided, the material is resistant to ultra-high temperature in a non-oxidation environment, the fatigue resistance is good, the specific heat and the conductivity are between those of nonmetal and metal, the thermal expansion coefficient is small, the material has anisotropy, the corrosion resistance is good, the X-ray permeability is good, the material is resistant to strong acid, strong base, high modulus, ultralow resistance, wear resistance, radiation absorption, a far infrared heating principle, thermal stability (no expansion caused by heat and contraction caused by cold) and other excellent characteristics.

Publication (bulletin) No.: CN106223905B, publication (public notice) day: 2019-05-10 discloses a lifting rope connecting device of a pumping unit, which comprises a lifting beam, a connector and a lifting rope, wherein two ends of the lifting beam are provided with hanging lugs, the two hanging lugs are respectively provided with a vertical connecting hole, the middle section of the lifting beam is provided with a vertical through hole, the through hole is divided into three sections from top to bottom, the inner diameter of the upper section is larger than that of the middle section, a first step is formed between the upper section and the middle section, the inner diameter of the middle section is larger than that of the lower section, a second step is formed between the middle section and the lower section, one side of the through hole is provided with a vertical gap, the width of the gap is equal to that of the inner diameter of the lower section, opposite side walls of the middle section and the gap are provided with circumferential arc sliding grooves, one end of the sliding grooves is provided with an inlet at the first step, the middle section is internally matched with a clamping ring which has the inner diameter equal to that of the lower section and falls on the second step, the clamping ring is provided with an opening with the width equal to the gap, the outer side clamping ring is provided with a sliding block which can enter the sliding groove from the inlet and can be matched with the sliding groove, the sliding block is connected with a wrench, so that the stress is balanced, and the upper part of the lifting rope is adaptive to bending deformation.

Publication (bulletin) No.: CN210317201U, publication (public notice) day: 2020-04-14 relates to a polished rod suspension system of a pumping unit and a supporting device thereof. The supporting device for the polished rod suspension system of the oil pumping unit comprises a U-shaped support, the support is supported at the upper end of a rope hanger in a back-off mode when the supporting device is used, the upper end of the rope hanger is used for supporting a load clamp, the supporting device comprises two supporting arms which are arranged side by side along the interval arrangement direction of two lifting ropes, and an accommodating space for accommodating an anti-dropping clamp is formed between the two supporting arms; the central through hole penetrates through the U-shaped bracket up and down and is used for the light rod to pass through; in the interval arrangement direction of the two support arms, two closed fixing rings are respectively arranged on two sides of the U-shaped support, the fixing rings are used for being sleeved outside the corresponding lifting ropes to be assembled with the lifting ropes in an anti-falling mode, and the two fixing rings can be circumferentially blocked with the corresponding lifting ropes to prevent the two support arms of the U-shaped support from rotating away from the rope hanger. By adopting the closed fixing ring, even if the lifting rope is bent to a certain degree and twisted and the like during use, the lifting rope cannot be separated from the fixing ring, and the anti-falling assembly of the fixing ring and the lifting rope is ensured.

Publication (bulletin) No.: CN203515374U, publication (public notice) day: 2014-04-02 is a device for preventing the polish rod of the oil well from breaking and pumping without stopping, and realizes the pumping of the pumping unit without stopping pumping after the polish rod of the oil well breaks and pumps, so as to prevent the well from lying. The device comprises a square clamp and a rope hanger, wherein the square clamp is arranged above the rope hanger, a secondary suspension mechanism is connected below the rope hanger through a connecting piece, and when the polished rod is broken at the rope hanger above the polished rod, the polished rod can be clamped by the secondary suspension mechanism, so that the problem of well stopping after the polished rod is broken and broken. In the past, after the polished rod is broken and taken off, salvage and hang the load again and all will influence many well opening time, use the utility model discloses back polished rod is broken and is taken off not shut-in well, has enough time to make an order to change side's checkpost and polished rod with planning. The problems that the polished rod breaks and falls off the well, such as idling of the pumping unit burns the motor, the pumping unit is unbalanced to damage pumping unit equipment, the oil pipe is broken to cause the well to lie, the polished rod falls into a well mouth in a shaft to leak oil, crude oil loss, environmental pollution and the like are solved, the oil extraction efficiency is greatly improved, and the operation cost and the pollution compensation cost are reduced.

Publication (bulletin) No.: CN201187265Y, publication (public notice) day: 2009-01-28 relates to a double-suspension rope hanger, which can effectively solve the technical problems of immediate pick-up after the polished rod of the pumping well breaks off, avoiding the production stop of the oil well, oil gas leakage, no-load operation of the pumping unit and burning out of motor equipment, and adopts the technical proposal that the double-suspension rope hanger comprises an upper body of the rope hanger and a lower body of the rope hanger, wherein two ends of the upper body of the rope hanger are suspended at the lower parts of two ends of a lifting rope, the lower part of the upper body of the rope hanger is connected with the lower body of the rope hanger, the polished rod is arranged in the center of the upper body of the rope hanger and the lower body of the rope hanger in a penetrating way, the polished rod extends out of the upper part of the upper body of the rope hanger and is clamped and fixed by a clamp on the upper part of the upper body of the rope hanger, and the polished rod is clamped and fixed on the lower body of the rope hanger by a lower clamp on the upper part of the lower body of the rope hanger. The accident is prevented, and good social benefit and economic benefit are certainly brought by popularization and application of the anti-theft door.

In a word, above technical scheme of the disclosure and the technical problem that will solve and the beneficial effect who produces all with the utility model discloses inequality, perhaps technical field or application are different, are directed against the utility model discloses more technical problem and the beneficial effect that will solve, above all there is not technological inspiration in the technical document of disclosing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pumping unit carbon fiber lifting rope hangs polished rod system to the above-mentioned defect that prior art exists, the carbon fiber pole is in service, does not beat the torsional deformation. The upper disc and the lower disc of the rope suspension device are convenient to disassemble and safe to operate. The anti-breaking square clamp prevents the well from being broken to cause blowout pollution. The carbon fiber rod is small in stress deformation, and the polished rod hanger is kept horizontal and the polished rod is centered.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a carbon fiber lifting rope suspension polished rod system of a pumping unit comprises lifting rings, lifting ropes and an upper plate, wherein the two lifting ropes are arranged, the upper ends of the lifting ropes are connected with the lifting rings, and the upper plate is arranged on the lifting ropes;

the lifting rope is a carbon fiber rod;

an upper plate middle hole used for penetrating through the polish rod is formed in the center of the upper plate, the inner diameter of the upper plate middle hole is larger than the outer diameter of the polish rod, a first square clamp is mounted on the polish rod, and the square clamp is limited and blocked by the upper surface of the upper plate in the axial direction.

Furthermore, grooves for clamping the carbon fiber rods are formed in two end portions of the upper disc, screw holes are formed in the grooves, jackscrews are arranged in the screw holes, and the carbon fiber rods are tightly pressed and fixed on the upper disc by the jackscrews.

Further, the carbon fiber rod comprises a rod body, an upper clamping head at the upper end of the rod body and a lower clamping head at the lower end of the rod body, and the outer diameter of the upper clamping head and the diameter of the lower clamping head are both larger than the diameter of the rod body.

Furthermore, the lower end of the hanging ring is connected with a first clamping cylinder, an inner thread is formed in the inner wall of the lower end opening of the first clamping cylinder, the upper clamping head is inserted into the first clamping cylinder, an upper pressing cover is installed on the lower end opening of the first clamping cylinder, and the upper section of the upper pressing cover axially limits the lower end surface of the upper clamping head.

Further, the screw rod clamping device further comprises a lower disc, a screw rod and a second clamping cylinder;

the center of the lower disc is provided with a lower disc center hole for penetrating through a polished rod, the lower disc is also provided with a step screw hole vertically aligned with the carbon fiber rod, the lower end of the screw rod is provided with a screw head, the screw head is in threaded connection with the step screw hole, and the upper end of the screw rod is connected with a second clamping barrel;

the lower clamping head at the lower end of the carbon fiber rod is inserted into the second clamping cylinder, the upper port of the second clamping cylinder is provided with the lower pressing cover, and the lower end face of the lower pressing cover is axially limited on the upper end face of the lower clamping head.

Further, still include second side checkpost, second side checkpost is the square checkpost of preventing breaking, the square checkpost of preventing breaking is fixed on the polished rod, and prevents that the square checkpost of breaking is located between hanging wall and the lower wall.

Furthermore, the anti-breaking square clamp is limited and blocked by the lower surface of the upper disc in the axial direction, and the upper surface of the lower disc can limit the axial direction of the anti-breaking square clamp.

Compared with the prior art, the utility model following beneficial effect has:

firstly, the problems of twisting, corrosion, strand breaking, maintenance and well shut-down of the existing lifting rope (hair braid) are solved, and the shut-down accidents are reduced.

Secondly, the service life is prolonged from 2 years to 6 years at present.

And thirdly, the well lying caused by the breakage, replacement and maintenance of the lifting rope and the well stopping is avoided, the sand production well lying is reduced, and the production cost is saved.

Fourthly, the invention can be popularized and applied to various pumping units in the whole oil field, and has wide popularization prospect.

Drawings

Fig. 1 is a schematic structural diagram of a carbon fiber lifting rope suspended polish rod system of a pumping unit.

In the figure: the device comprises a lifting ring 1, a clamping cylinder 2, an upper clamping head 3, an upper pressing cover 4, a carbon fiber rod 5, a polish rod 6, a square clamp 7, an upper disc 8, a jackscrew 9, a lower pressing cover 10, a lower clamping head 11, a connecting clamping cylinder 12, a screw rod 13, a square breakage prevention clamp 14, a lower disc 15 and a screw head 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1, the present invention provides a technical solution:

a carbon fiber lifting rope suspension polished rod system of a pumping unit comprises lifting rings 1, lifting ropes and an upper disc, wherein the two lifting ropes are arranged, the upper ends of the lifting ropes are connected with the lifting rings, and the upper disc is arranged on the lifting ropes;

the lifting rope is a carbon fiber rod 5;

an upper plate middle hole used for penetrating through the polish rod is formed in the center of the upper plate, the inner diameter of the upper plate middle hole is larger than the outer diameter of the polish rod 6, a first square clamp 7 is installed on the polish rod, and the square clamp is limited and blocked by the upper surface of the upper plate in the axial direction. Namely, the square clip is larger than the hole in the upper disc and can not pass through.

Furthermore, grooves for clamping the carbon fiber rods are formed in two end portions of the upper disc, screw holes are formed in the grooves, jackscrews 9 are installed in the screw holes, and the carbon fiber rods are tightly pressed and fixed on the upper disc through the jackscrews.

Further, the carbon fiber rod comprises a rod body, an upper clamping head 3 at the upper end of the rod body and a lower clamping head 11 at the lower end of the rod body, wherein the outer diameter of the upper clamping head and the diameter of the lower clamping head are both larger than the diameter of the rod body.

Further, the lower extreme of rings is connected a first card section of thick bamboo 2, and internal thread is seted up to port inner wall under the first card section of thick bamboo, go up the dop and insert in the first card section of thick bamboo, gland on the port installation under the first card section of thick bamboo, it is spacing to go up the axial of the lower terminal surface of dop to go up gland upper cross section.

Further, the device also comprises a lower disc 15, a lead screw 13 and a second clamping cylinder 11;

the center of the lower disc is provided with a lower disc center hole for penetrating through a polished rod, the lower disc is also provided with a step screw hole vertically aligned with the carbon fiber rod, the lower end of the screw rod is provided with a screw head 16, the screw head is in threaded connection with the step screw hole, and the upper end of the screw rod is connected with a second clamping barrel;

Further, still include second side checkpost, second side checkpost is the square checkpost of preventing breaking, 14 the square checkpost of preventing breaking is fixed on the polished rod, and prevents that the square checkpost of breaking is located between hanging wall and the lower wall.

Furthermore, the anti-breaking square clamp is limited and blocked by the lower surface of the upper disc in the axial direction, and the upper surface of the lower disc can limit the axial direction of the anti-breaking square clamp. Namely, the square clip is larger than the middle hole of the upper disc and the middle hole of the lower disc and can not pass through.

When the lifting rope is replaced, the lifting ring 1 is lifted, the clamping cylinder 2 is clamped in the clamping groove of the oil pumping unit, the polished rod 6 penetrates into the upper disc 8 and the lower disc 15, the square clamp 7 is arranged on the polished rod 6 and located on the upper disc 8, and the anti-breaking square clamp 14 is arranged on the polished rod 6 and located between the upper disc 8 and the lower disc 15. The jackscrew 9 and the lead screw 13 are tightened.

The utility model has the advantages of it is following:

1. the traditional steel wire rope structure is changed into a carbon fiber structure.

2. The carbon fiber rod is not easy to corrode and age, and the service cycle is prolonged.

3. The carbon fiber rod is light in weight and convenient to replace and adjust through the lifting ring.

4. The carbon fiber rod does not twist and deform during operation.

5. The upper disc and the lower disc of the rope suspension device are convenient to disassemble and safe to operate.

6. The anti-breaking square clamp prevents the well from being broken to cause blowout pollution.

7. The carbon fiber rod is small in stress deformation, and the polished rod hanger is kept horizontal and the polished rod is centered.

Example 2:

referring to fig. 1, the present invention provides a technical solution:

the lifting rope is a carbon fiber rod 5;

Example 3:

referring to fig. 1, the present invention provides a technical solution:

the lifting rope is a carbon fiber rod 5;

Although fig. 1 is used for all the above embodiments, it is obvious to those skilled in the art that a separate drawing is not shown as long as the parts or structural features missing in the embodiments are removed from the drawing. As will be clear to the skilled person. Of course, the embodiments with more components are only the preferred embodiments, and the embodiments with fewer components are the basic embodiments, but the basic objects of the present invention can also be achieved, so all of these modified embodiments are within the scope of the present invention.

All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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

1. A carbon fiber lifting rope suspension polished rod system of a pumping unit comprises lifting rings, lifting ropes and an upper plate, wherein the two lifting ropes are arranged, the upper ends of the lifting ropes are connected with the lifting rings, and the upper plate is arranged on the lifting ropes;

the lifting rope is characterized in that the lifting rope is a carbon fiber rod;

2. The carbon fiber lifting rope suspended polish rod system of the oil pumping unit according to claim 1, wherein grooves for clamping the carbon fiber rods are formed in two end portions of the upper plate, screw holes are formed in the grooves, jackscrews are installed in the screw holes, and the carbon fiber rods are tightly pressed and fixed on the upper plate by the jackscrews.

3. The carbon fiber lifting rope suspended polish rod system of claim 2, wherein said carbon fiber rod comprises a rod body, an upper chuck at the upper end of the rod body, and a lower chuck at the lower end of the rod body, and the outer diameter of the upper chuck and the diameter of the lower chuck are both larger than the diameter of the rod body.

4. The carbon fiber lifting rope suspended polish rod system of the oil pumping unit according to claim 3, wherein the lower end of the lifting ring is connected with a first clamping cylinder, an inner thread is formed on the inner wall of the lower end opening of the first clamping cylinder, the upper clamping head is inserted into the first clamping cylinder, an upper gland is installed on the lower end opening of the first clamping cylinder, and the upper cross section of the upper gland axially limits the lower end surface of the upper clamping head.

5. The carbon fiber lifting rope suspended polish rod system of the oil pumping unit according to claim 3 or 4, further comprising a lower disc, a screw rod and a second clamping barrel;

6. The carbon fiber lifting rope suspended polish rod system of claim 5, further comprising a second square clamp, wherein the second square clamp is a breakage-proof square clamp, the breakage-proof square clamp is fixed on the polish rod, and the breakage-proof square clamp is located between the upper disc and the lower disc.

7. The carbon fiber sling suspended polish rod system of claim 6, wherein the anti-breaking clamp is stopped by the lower surface of the upper disc in the axial direction.