CN215761537U - Pipe pole eccentric wear prevention pipe column - Google Patents
Pipe pole eccentric wear prevention pipe column Download PDFInfo
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- CN215761537U CN215761537U CN202123260918.4U CN202123260918U CN215761537U CN 215761537 U CN215761537 U CN 215761537U CN 202123260918 U CN202123260918 U CN 202123260918U CN 215761537 U CN215761537 U CN 215761537U
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Abstract
The utility model discloses a pipe rod eccentric wear prevention pipe column in the technical field of oil extraction processes, which comprises an oil pipe, a sucker rod, a speed reducer, a centralizer and a self-pressure-relief long-barrel oil well pump, wherein the speed reducer is installed and connected to the lower end of a wellhead polished rod and is connected with the sucker rod; the self-pressure-relief long-barrel oil well pump is characterized in that a self-pressure-relief device is arranged below the upper stroke of the bottom of a pump plunger, the upper end and the lower end of the self-pressure-relief long-barrel oil well pump are connected with an oil pipe, and a screw thread of the self-pressure-relief long-barrel oil well pump is consistent with a screw thread of the oil pipe; the centralizer is in one-to-one correspondence with the sucker rod, and the speed reducer and the centralizer are both consistent with the sucker rod screw thread. The utility model has reasonable structural design, is convenient to effectively reduce the pipe rod abrasion in the oil extraction of the oil rod, improves the utilization rate of a production well, prolongs the pump inspection period of the oil well and the service life of the pipe rod, and reduces cost and improves efficiency.
Description
Technical Field
The utility model relates to the technical field of oil extraction processes, in particular to a pipe rod eccentric wear prevention pipe column.
Background
The pipe pole wearing and tearing problem can not be solved always in oil production process of oil pole, because the existence of this problem has influenced the oil production of oil pole and has examined the life of pump cycle and pipe pole, gets into the later stage of high moisture development when the oil field, because the needs of extract, sucker rod operating frequency improves greatly, and the wearing and tearing problem of pipe pole is more serious, along with the rising of water content in the production fluid, can lead to liquid to descend to the lubricated operation of pipe pole, has also aggravated pipe pole wearing and tearing. For a long time, people do a lot of work on solving the problem of pipe and rod abrasion in the oil production process of the oil rod, and although a lot of cost is invested, the received effect is not ideal, so that the problem of pipe and rod abrasion in oil production of the oil rod is effectively solved, and the method has great significance for improving the pump inspection period, reducing cost and improving efficiency.
Therefore, the pipe rod eccentric wear prevention pipe column is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provide a tubular rod eccentric wear prevention tubular column, which is convenient to effectively reduce the wear of the tubular rod in oil extraction of an oil rod, improves the utilization rate of a production well, prolongs the pump inspection period of an oil well and the service life of the tubular rod, and reduces cost and improves efficiency.
In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme:
the pipe rod eccentric wear prevention pipe column comprises an oil pipe and a sucker rod, and further comprises a speed reducer, a centralizer and a self-pressure-relief long-barrel oil well pump, wherein the speed reducer is installed and connected to the lower end of a wellhead polished rod and is connected with the sucker rod;
the self-pressure-relief long-barrel oil well pump is characterized in that a self-pressure-relief device is arranged below the upper stroke of the bottom of a pump plunger, the upper end and the lower end of the self-pressure-relief long-barrel oil well pump are connected with an oil pipe, and a screw thread of the self-pressure-relief long-barrel oil well pump is consistent with a screw thread of the oil pipe;
the centralizer is in one-to-one correspondence with the sucker rod, and the speed reducer and the centralizer are both consistent with the sucker rod screw thread.
Preferably, the speed reducer comprises a central pipe, one end of the central pipe is provided with a lower joint, and the other end of the central pipe is provided with an upper joint.
Based on the technical characteristics, the speed reducer is convenient to connect and install on the sucker rod.
Preferably, the one end that the top connection was pressed close to the center tube is provided with the bowl seat, the outer wall of center tube is provided with the leather cup, the leather cup is located between lower clutch and the bowl seat.
Based on the technical characteristics, the speed reducer plays a role of a parachute through the leather cup.
Preferably, a positioning compression ring is arranged at the joint of the leather cup and the cup seat.
Based on the technical characteristics, the leather cup is convenient to position on the bowl seat.
Preferably, the centralizer comprises a short section, the left end of the outer wall of the short section is sleeved with a centralizing sleeve, and the right end of the short section is provided with a coupling.
Based on the technical characteristics, the sucker rod collar is connected to the sucker rod, and the outer diameter of the centering sleeve is larger than the outer diameter of the sucker rod collar to play a role in centering.
Preferably, the centering sleeve is made of nylon wear-resistant materials.
Based on the technical characteristics, the centralizing sleeve is made of high-strength wear-resistant material and is in contact with the oil pipe to enable the centralizing body to be worn, so that the wear of the oil pipe is reduced, and the purpose of preventing eccentric wear is achieved.
Compared with the prior art, the utility model has the following beneficial effects:
firstly, the method comprises the following steps: the height difference of the inner liquid column and the outer liquid column of the oil well pump and the speed reducer are ingeniously utilized, when the oil well pump runs up and down, the descending speed of the oil well pump is slow, the eccentric wear between pipe rods is reduced to the maximum extent, and the problems that the oil well pump is subjected to hydraulic action, the bottom plunger descends slowly, the running speed is asynchronous, the oil well pump is bent under the instant action of the self gravity of the oil well pump, the pipe rods are seriously rubbed with the inner wall of an oil pipe, and the pipe rods are damaged due to local abrasion are solved;
secondly, the method comprises the following steps: when the sucker rod moves up and down in the oil pipe through the centralizer, the friction between the sucker rod and the oil pipe is reduced, so that the abrasion of the pipe rod in oil extraction of the oil rod is effectively reduced, the utilization rate of a production well is improved, the pump inspection period of the oil well and the service life of the pipe rod are prolonged, and the cost is reduced and the efficiency is improved.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a use state of the present invention;
FIG. 2 is a first schematic structural diagram of the speed reducer of the present invention;
FIG. 3 is a second schematic structural view of the speed reducer of the present invention;
FIG. 4 is a first schematic structural diagram of the centralizer of the present invention;
FIG. 5 is a second schematic structural view of the centralizer of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-speed reducer, 101-lower joint, 102-central pipe, 103-leather cup, 104-positioning compression ring, 105-bowl seat, 106-upper joint, 2-centralizer, 201-centralizing sleeve, 202-short section, 203-coupling, 3-self-pressure-relief long-barrel oil well pump, 4-oil pipe and 5-sucker rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a pipe rod eccentric wear prevention pipe column comprises an oil pipe 4, a sucker rod 5, a speed reducer 1, a centralizer 2 and a self-pressure-relief long barrel oil pump 3, wherein the speed reducer 1 is installed and connected at the lower end of a wellhead polish rod, the speed reducer 1 is connected with the sucker rod 5, the speed reducer 1 comprises a central pipe 102, one end of the central pipe 102 is provided with a lower joint 101, the other end of the central pipe 102 is provided with an upper joint 106, the speed reducer 1 is conveniently connected and installed on the sucker rod 5, one end of the central pipe 102 close to the upper joint 106 is provided with a bowl seat 105, the outer wall of the central pipe 102 is provided with a leather cup 103, the leather cup 103 is positioned between the lower joint 101 and the bowl seat 105, the speed reducer plays a role of a parachute through the leather cup, and the positioning compression ring 104 is arranged at the joint of the leather cup 103 and the bowl seat 105, so that the leather cup 103 can be conveniently positioned on the bowl seat 105;
the self-pressure-relief long-barrel oil well pump 3 is provided with a self-pressure-relief device below the upper stroke of the bottom of the pump plunger, the upper end and the lower end of the self-pressure-relief long-barrel oil well pump 3 are connected with an oil pipe 4, and the screw thread of the self-pressure-relief long-barrel oil well pump 3 is consistent with the screw thread of the oil pipe 4;
the centralizer 2 corresponds to the sucker rod 5 one by one, the speed reducer 1 and the screw thread of the centralizer 2 are consistent with the screw thread of the sucker rod 5, the sucker rod 5 moves up and down in the oil pipe 4, the sucker rod 5 and the inner wall of the oil pipe are easy to generate friction due to the elastic deformation of the sucker rod 5, the sucker rod 5 is easy to break, the centralizer 2 has strong flexibility and contacts with the inner wall of the oil pipe, the friction between the sucker rod 5 and the inner wall of the oil pipe can be reduced, the oil extraction life of the oil pumping unit is prolonged, the centralizer 2 comprises a short section 202, the left end of the outer wall of the short section 202 is sleeved with a centralizing sleeve 201, the right end of the short section 202 is provided with a coupling 203 which is connected on the sucker rod 5, the centralizing sleeve 201 is made of nylon wear-resistant material, the centralizing sleeve 201 is made of high-strength wear-resistant material and contacts with the oil pipe 4 to enable the centralizing sleeve 201 to be worn, and reduce the wear of the oil pipe 4, so as to achieve the purpose of preventing eccentric wear.
The working principle of the utility model is as follows: when in use, under the action of the self-pressure-relief long-barrel oil well pump 3, before the front-section moving system of the down stroke obtains the maximum momentum, the pumping rod column and the plunger have no powerful extrusion points, so that the whole moving system bears the tension, and the pressure (the precondition of the force of pipe rod abrasion) generated on an oil pipe by the extrusion deformation of the pumping rod in the past is eliminated; the power of the traveling system before obtaining the maximum momentum comes from the liquid column pressure difference inside and outside the oil pipe; at the moment, the force given to the pumping unit by the sharp falling speed of the sucker rod 5 is sharply increased, so that the operation of the machine rod is unstable, at the moment, a plurality of speed reducers 1 are additionally arranged near a well mouth on the sucker rod 5, so that when the sucker rod 5 descends, the speed reducers 1 play a role of a parachute, so that the instantaneously increased falling speed can play a great role in reducing, the purpose that the gravity of the sucker rod 5 is instantaneously and effectively released is realized, meanwhile, the use of the speed reducers 1 solves the problems that the falling speed is too fast, the instantaneous pressure bearing of the sucker rod 5 is reduced, the normal and stable operation of the machine rod pump is realized, the structure is reasonable, the performance is reliable, the use is simple and convenient, the effect is obvious, and the creeping and the impact of a pipe column caused by alternating load in the production process are effectively eliminated;
meanwhile, the centralizer 2 matched with the sucker rod 5 can compensate for pipe rod abrasion caused by non-linear of an oil well track to a certain extent, when the pump descends to be close to the bottom, the descending speed of the bottom part of the sucker rod 5 is reduced, the top part of the sucker rod 5 still keeps high descending speed, the whole sucker rod 5 is under the action of gravity of the top part of the sucker rod 5, the middle part of the sucker rod 5 can be extruded inevitably, the sucker rod 5 rubs with the inner wall of the oil pipe 4 in the descending process, the centralizer 2 added on the sucker rod 5 plays a certain protection role for the oil pipe 4 and the sucker rod 5 at the moment, the friction between the sucker rod 5 and the oil pipe 4 is reduced, and the oil pipe 4 is prevented from being damaged.
Examples
The eccentric wear prevention pipe with the pipe rod is adopted to implement 20 wells in Dongsheng companies of the victory oil fields, the success rate is 100 percent, the pump detection period is prolonged by more than 2 years, and the effects of increasing oil and reducing cost are obvious.
The self-relieving long barrel oil well pump 3 is a mature technical field known to those skilled in the art, and is only used without changing the structure and function.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean 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 utility model. 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 preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a tubular pole eccentric wear prevention tubular column, includes oil pipe (4) and sucker rod (5), its characterized in that: the self-pressure-relief long-barrel oil well pump is characterized by further comprising a speed reducer (1), a centralizer (2) and a self-pressure-relief long-barrel oil well pump (3), wherein the speed reducer (1) is installed and connected to the lower end of a wellhead polished rod, and the speed reducer (1) is connected with an oil pumping rod (5);
the self-pressure-relief long-barrel oil well pump (3) is provided with a self-pressure-relief device below the upper stroke of the bottom of the pump plunger, the upper end and the lower end of the self-pressure-relief long-barrel oil well pump (3) are connected with an oil pipe (4), and the screw thread of the self-pressure-relief long-barrel oil well pump (3) is consistent with the screw thread of the oil pipe (4);
the centralizer (2) corresponds to the sucker rod (5) one by one, and the screw threads of the speed reducer (1) and the centralizer (2) are consistent with the screw threads of the sucker rod (5).
2. The pipe string of claim 1, wherein: the speed reducer (1) comprises a central pipe (102), a lower joint (101) is arranged at one end of the central pipe (102), and an upper joint (106) is arranged at the other end of the central pipe (102).
3. The pipe string of claim 2, wherein: the one end that top connection (106) is pressed close to in center tube (102) is provided with bowl seat (105), the outer wall of center tube (102) is provided with leather cup (103), leather cup (103) are located between lower clutch (101) and bowl seat (105).
4. The pipe string of claim 3, wherein: and a positioning press ring (104) is arranged at the joint of the leather cup (103) and the cup seat (105).
5. The pipe string of claim 1, wherein: the centralizer (2) comprises a short section (202), a centralizing sleeve (201) is sleeved at the left end of the outer wall of the short section (202), and a coupling (203) is arranged at the right end of the short section (202).
6. The pipe string of claim 5, wherein: the centralizing sleeve (201) is made of nylon wear-resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123260918.4U CN215761537U (en) | 2021-12-23 | 2021-12-23 | Pipe pole eccentric wear prevention pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123260918.4U CN215761537U (en) | 2021-12-23 | 2021-12-23 | Pipe pole eccentric wear prevention pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761537U true CN215761537U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123260918.4U Active CN215761537U (en) | 2021-12-23 | 2021-12-23 | Pipe pole eccentric wear prevention pipe column |
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| Country | Link |
|---|---|
| CN (1) | CN215761537U (en) |
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2021
- 2021-12-23 CN CN202123260918.4U patent/CN215761537U/en active Active
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