CN210343286U - Polish rod protector for oil pumping well - Google Patents
Polish rod protector for oil pumping well Download PDFInfo
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- CN210343286U CN210343286U CN201921455158.2U CN201921455158U CN210343286U CN 210343286 U CN210343286 U CN 210343286U CN 201921455158 U CN201921455158 U CN 201921455158U CN 210343286 U CN210343286 U CN 210343286U
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Abstract
The embodiment of the utility model discloses beam-pumping unit well polish rod protector relates to oil production equipment technical field. The first packing protection sealing mechanism is arranged in the outer sleeve of the protection sealing main body, the second packing protection sealing mechanism is arranged in the valve seat pressing sleeve, an energy continuing assembly is arranged between the first packing protection sealing mechanism and the protection sealing pressing cover, and an energy continuing assembly is also arranged between the second packing protection sealing mechanism and the first packing protection sealing mechanism. The polish rod protector has all functions of protecting a polish rod, saving energy and a packing box, has the remarkable characteristic of long sealing period, adopts the fluid sealing principle, continuously and uniformly pressurizes a protective sealing material under the action of continuous energy assembly compensation force, ensures the close coupling of the sealing material and the polish rod, and avoids the increase of friction force between the polish rod and the packing of a pumping unit and the increase of motor load caused by the manual mechanical stress application of the traditional polish rod sealer, so that the polish rod protector has the characteristics of protecting the polish rod, saving energy and sealing for a long time.
Description
Technical Field
The embodiment of the utility model provides a relate to oil production equipment technical field, concretely relates to beam-pumping unit well polish rod protector.
Background
The development of the petroleum industry has been in the past for hundreds of years, and devices or packing boxes for sealing the wellhead of the pumping unit have also been developed synchronously, although the current market has dozens of devices or packing boxes with different design concepts, different prices, different shapes and types, and the following pain points exist in the actual production:
1. short sealing period, crude oil leakage and environmental pollution
The packing that oil pumping unit well head sealing device or packing box that present market used, the packing that adopts is fixed type elastic material mostly as the sealing filler, nevertheless because the average reciprocating motion number of times 7500 of every day of oil pumping unit, reciprocating motion number of times multirow is long, and the polished rod surface is corroded by well liquid, and polished rod smooth finish is not enough, and in addition the sucker rod is not centering, often leads to the eccentric wear, both wears the packing, wears the polished rod again, causes the packing wearing and tearing to lead to the oil leak. In general, in a standard common well, the longest sealing time is less than 3 months, and the shortest sealing time is 15 days; in the thermal recovery and ternary wells, the longest sealing time is not more than 20 days and the shortest sealing time is 3 days in general. And further causes oil leakage at the wellhead of the oil pumping unit and environmental pollution.
2. Large power consumption
The well mouth sealing device or the packing box of the pumping unit in the current market has the effects that the packing in the packing box is extruded by the artificial machinery, so that the packing tightly holds the polished rod to achieve the sealing effect, the friction coefficient between the polished rod of the pumping unit and the packing is increased in the process that the polished rod is tightly held by the packing, and the motor load of the pumping unit is increased; meanwhile, the sucker rod is not centered, so that eccentric wear of the polished rod, a well head and a packing box is caused, and the motor load of the oil pumping unit is increased to a certain extent; in addition, the water content in the oil well is increased, so that the friction coefficient between packing of the packing and the polished rod is increased, and the like, the motor load of the oil pumping unit is further increased, and the power consumption is higher.
3. The frequency of replacing the packing is high, the labor intensity of field workers is increased, and the production timeliness is reduced
The oil pumping machine wellhead sealing device or the packing box used in the current market has short sealing period, crude oil leakage and environmental pollution, so that the normal work of the oil pumping machine must be stopped in a production field, the packing is replaced, the tightness of the packing is adjusted, wellhead equipment is scrubbed, the labor intensity of field workers is increased, meanwhile, the yield of the crude oil is reduced due to the well shut-down, and the production recovery process of the oil pumping machine well is complex, so that the production actual effect of the oil well is seriously influenced. According to incomplete statistics, the packing of packing boxes or similar products is changed for an average of 9 times per year when a standard ordinary production well is shut down, the packing of packing boxes or similar products is changed for an average of 18 times per year when a thermal production or ternary well is shut down, the time for changing the packing of packing boxes or similar products is about 40 minutes when the well is shut down every time, if the well is shut down to a second well and the recovery time of the yield before the well is shut down is reached, the accumulated time of each time is about 1.5 hours, therefore, the production time of the standard ordinary production well is averagely reduced by 13.5 hours per year, and the production time of the thermal production well or ternary well is averagely reduced by 27 hours per year.
4. The cost for replacing packing or stuffing is high
Because the sealing cycle of the oil pumping machine wellhead sealing device or the packing box used in the current market is short, crude oil leaks and pollutes the environment. The packing of a packing box or a packing of a similar product is replaced by 9 times per year by a standard common production well, the cost of raw materials for replacing each time is 55 RMB on average, the cost of the packing for replacing the packing or the similar product by the standard common production well is 495 RMB on average, meanwhile, the packing box or the packing box is used for a wellhead sealing device of an oil pumping unit in the current market, the service life of a polished rod is 2 years on average, the material cost per year is 1500 RMB on average, a crane and 4 workers work for half a day for replacing the polished rod once, the cost is 1600/2+400/2 which is 1000 RMB, and therefore, the cost for replacing the packing or the similar product by the standard common production well per year and the polished rod is 2995 RMB on average; the packing of packing box or similar products is changed every year in thermal recovery or ternary production well, the cost of raw material changed every year is 900 yuan RMB on average, the packing of packing or similar products is changed every year in average 16200 yuan RMB on average, meanwhile, the sealing device or packing box used for this kind of well in the market at present, make the life of polished rod average 2 years, the material cost of average annual is 1500 yuan RMB, and change polished rod once and need a crane and 4 workers work half a day, the cost is 1600/2+400/2 become 1000 yuan RMB, for this reason, the cost of changing packing or similar products and polished rod every year in thermal recovery or ternary production well is 18700 yuan RMB on average.
5. The old packing box also has the following disadvantages: the packing is not sealed tight, the potential safety pollution hazard, and the polished rod grinds the packing partially, maintains loaded down with trivial details inefficiency.
Disclosure of Invention
Therefore, the embodiment of the utility model provides an oil pumping motor-pumped well polish rod protector to solve among the prior art packing box leakproofness poor, life weak point, maintain loaded down with trivial details inefficiency problem.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the utility model discloses an on the one hand, this rod protector of rod-pumped well includes that sealed main part overcoat, gland, disk seat press the cover, the well head is connected base, first packing protection sealing mechanism and second packing protection sealing mechanism, and gland connects in the one end of sealed main part overcoat, and the other end of sealed main part overcoat is connected to the one end that the disk seat pressed the cover, and the well head is connected to the other end that the disk seat pressed the cover, first packing protection sealing mechanism sets up in sealed main part overcoat, second packing protection sealing mechanism sets up in the disk seat presses the cover, is equipped with between first packing protection sealing mechanism and gland and continues can the assembly, also is equipped with between second packing protection sealing mechanism and the first packing protection sealing mechanism and continues can the assembly. The term "energy continuation" means that the thrust force can be continuously supplied.
Further, first filler protection sealing mechanism and second filler protection sealing mechanism structure the same, all include two rubber seal and set up the sealed granule material between two rubber seal.
Furthermore, a positioning table is arranged on the inner side of the middle of the outer sleeve of the sealing main body, and energy continuing assemblies are symmetrically arranged on two sides of the positioning table.
Furthermore, the energy continuing assembly comprises an energy continuing shell and an energy continuing spring, one end of the energy continuing shell is relatively fixed with the first packing protection sealing mechanism or the second packing protection sealing mechanism, the energy continuing spring is arranged in the energy continuing shell, and one end of the energy continuing spring extends out of the other end of the energy continuing shell.
Furthermore, the other end of the valve seat pressing sleeve is connected with a wellhead connecting base through an eccentric adjusting mechanism.
Furthermore, the eccentric adjusting mechanism comprises a universal deviation adjusting ball head and a pressing cap, one end of the universal deviation adjusting ball head is fixedly connected with the other end of the valve seat pressing sleeve, a ball socket matched with the universal deviation adjusting ball head is arranged on the inner side of one end of the wellhead connecting base, and the pressing cap is arranged on the outer side of the universal deviation adjusting ball head and is in threaded connection with the wellhead connecting base.
Furthermore, the universal deviation-adjusting ball head is of a hollow structure, and a well-sealing valve component is arranged on the inner side of the universal deviation-adjusting ball head.
Furthermore, a handle is arranged on the outer side of the pressing cap.
Furthermore, the inner sides of the sealing main body outer sleeve, the sealing gland and the valve seat pressing sleeve are respectively provided with a positioning sleeve, and the sucker rod penetrates through the inner side of the positioning sleeve.
The embodiment of the utility model provides a have following advantage:
the packing box has the obvious characteristic of long sealing period, and the packing protection sealing mechanism of the packing box adopts the fluid sealing principle, so that the sealing material always holds the polish rod and realizes sealing under the action of the compensation force of the energy continuing assembly.
The sealing material of the sealing mechanism protected by the sealing filler has the characteristics of strong acid (strong base) corrosion resistance, and also has strong flexibility and smoothness, so that long-term sealing can be achieved, friction resistance can be reduced, and the electric energy loss of the pumping unit can be reduced.
The packing box uses the energy continuing assembly to continuously and uniformly pressurize the sealing material, ensures the close coupling of the sealing material and the polished rod, avoids the increase of the motor load of the pumping unit caused by overlarge force applied to the packing by the manual machinery of the traditional packing box, and has the characteristics of energy conservation and long-time sealing.
The packing box has the function of automatically sealing a well, a well sealing valve assembly is arranged on the inner side of the universal deviation adjusting ball head, and environmental pollution accidents such as oil leakage, water leakage and the like are prevented when the production well burst sucker rod is damaged or broken. The packing box has the function of maintaining and sealing the well, can seal the well mouth when replacing sealing materials or overhauling, and is convenient to maintain.
The packing box has the function of deviation adjustment, the maximum horizontal displacement is adjusted by 13mm, and the packing box can be randomly inclined along the 360-degree direction of the polish rod. The eccentric wear of the polish rod is avoided, and the service life of the polish rod is prolonged; the friction resistance is reduced, and the electric energy loss is reduced.
The packing box is provided with a positioning sleeve on the inner sides of a sealing main body outer sleeve, a sealing gland and a valve seat pressing sleeve, has the function of upper, middle and lower three-level positioning, and ensures that a polished rod runs in the device in the middle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of a polish rod protector for an oil pumping well according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
in the figure: 1-well head connecting base 2-well shut-in valve component 3-universal deviation adjusting bulb 4-pressure cap 5-valve seat pressure sleeve 6-energy continuing assembly 7-sealing main body outer sleeve 8-rubber sealing ring 9-sealing granule 10-sealing gland 11-positioning sleeve 12-handle 13-elastic retainer ring 14-O-shaped sealing ring 15-sucker rod 16-energy continuing shell 17-energy continuing spring 18-first packing protection sealing mechanism 19-second packing protection sealing mechanism.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered to be within the scope of the present invention without substantial changes in the technical content.
Referring to fig. 1-2, the polish rod protector for the rod-pumped well comprises a sealing main body outer sleeve 7, a sealing gland 10, a valve seat pressing sleeve 5, a well mouth connecting base 1, a first packing protection sealing mechanism 18 and a second packing protection sealing mechanism 19, wherein the sealing gland 10 is connected to one end of the sealing main body outer sleeve 7, one end of the valve seat pressing sleeve 5 is connected to the other end of the sealing main body outer sleeve 7, the other end of the valve seat pressing sleeve 5 is connected to the well mouth connecting base 1, the first packing protection sealing mechanism 18 is arranged in the sealing main body outer sleeve 7, the second packing protection sealing mechanism 19 is arranged in the valve seat pressing sleeve 5, an energy continuing assembly 6 is arranged between the first packing protection sealing mechanism 18 and the sealing gland 10, and an energy continuing assembly 6 is also arranged between the second packing protection sealing mechanism 19 and the first packing protection sealing mechanism 18.
The first packing protection sealing mechanism 18 and the second packing protection sealing mechanism 19 have the same structure and respectively comprise two rubber sealing rings 8 and sealing granules 9 arranged between the two rubber sealing rings 8. The sealing granules 9 have the characteristics of strong acid and strong alkali corrosion resistance, and have strong flexibility and smoothness, so that long-term sealing can be achieved, friction resistance can be reduced, and electric energy loss of the pumping unit can be reduced. The packing box has the characteristic of high temperature resistance, is suitable for a thermal recovery well of thickened oil or heavy oil or a ternary strong corrosion well, and can keep the sealing effect for more than 6 months at the temperature of 260 ℃. The inner sides of the sealing main body outer sleeve 7, the sealing gland 10 and the valve seat pressing sleeve 5 are all provided with a positioning sleeve 11, and the sucker rod 15 penetrates through the inner side of the positioning sleeve 11, so that the device has the functions of upper, middle and lower three-level positioning, and the polished rod is ensured to run in the middle of the device.
The inner side of the middle part of the sealing main body outer sleeve 7 is provided with a positioning table, and two sides of the positioning table are symmetrically provided with energy continuing assemblies 6. The energy continuing assembly 6 comprises an energy continuing shell 16 and an energy continuing spring 17, one end of the energy continuing shell 16 is fixed relative to a first packing protection sealing mechanism 18 or a second packing protection sealing mechanism 19, the energy continuing spring 17 is arranged in the energy continuing shell 16, and one end of the energy continuing spring 17 extends out of the other end of the energy continuing shell 16.
The other end of the valve seat pressing sleeve 5 is connected with the wellhead connecting base 1 through an eccentric adjusting mechanism, so that the packing box has the function of deviation adjustment, the maximum horizontal displacement of adjustment is 13mm, and the packing box can be randomly inclined along the 360-degree direction of the polished rod. The eccentric wear of the polish rod is avoided, and the service life of the polish rod is prolonged; the friction resistance is reduced, and the electric energy loss is reduced. The eccentric adjusting mechanism comprises a universal deviation adjusting ball head 3 and a pressing cap 4, one end of the universal deviation adjusting ball head 3 is fixedly connected with the other end of the valve seat pressing sleeve 5, a ball socket which the universal deviation adjusting ball head 3 is adapted to is arranged on the inner side of one end of the wellhead connecting base 1, and the pressing cap 4 is arranged on the outer side of the universal deviation adjusting ball head 3 and is in threaded connection with the wellhead connecting base 1.
The universal deviation-adjusting ball head 3 is of a hollow structure, and a well-sealing valve component 2 is arranged on the inner side of the universal deviation-adjusting ball head 3. An elastic retainer ring 13 is arranged between the second packing protection sealing mechanism 19 and the positioning sleeve 11 on the inner side of the valve seat pressing sleeve 5, and an O-shaped sealing ring 14 is arranged at the opening end of the universal deviation adjusting ball head 3, which is far away from the valve seat pressing sleeve 5. The outer side of the pressing cap 4 is provided with a handle 12. So as to realize the threaded connection of the pressure cap 4 and the wellhead connecting base 1.
The packing box has the obvious characteristic of long sealing period, and the packing protection sealing mechanism of the packing box adopts the fluid sealing principle to enable the sealing material to hold the polish rod all the time and realize sealing under the compensation force action of the energy continuing assembly 6. The packing box uses the energy continuing assembly 6 to continuously and uniformly pressurize the sealing material, ensures the close coupling of the sealing material and the polished rod, avoids the increase of the motor load of the pumping unit caused by overlarge force applied to the packing by the manual machinery in the traditional packing box, and has the characteristics of energy conservation and long-time sealing.
The packing box has the function of automatic well sealing, the inner side of the universal deviation-adjusting ball head 3 is provided with a well sealing valve component 2, and when the production well burst sucker rod 15 is damaged or broken, the occurrence of environmental pollution accidents such as oil leakage, water leakage and the like is prevented. The packing box has the function of maintaining and sealing the well, can seal the well mouth when replacing sealing materials or overhauling, and is convenient to maintain.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a rod protector of rod-pumped well which characterized in that: the polish rod protector of the rod-pumped well comprises a sealing main body outer sleeve (7), a sealing gland (10), a valve seat pressing sleeve (5), a well head connecting base (1), a first packing protection sealing mechanism (18) and a second packing protection sealing mechanism (19), wherein the sealing gland (10) is connected with one end of the sealing main body outer sleeve (7), one end of the valve seat pressing sleeve (5) is connected with the other end of the sealing main body outer sleeve (7), the other end of the valve seat pressing sleeve (5) is connected with the well head connecting base (1), the first packing protection sealing mechanism (18) is arranged in the sealing main body outer sleeve (7), the second packing protection sealing mechanism (19) is arranged in the valve seat pressing sleeve (5), an energy continuing assembly (6) is arranged between the first packing protection sealing mechanism (18) and the sealing gland (10), an energy continuing assembly (6) is also arranged between the second packing protection sealing mechanism (19) and the first packing protection sealing mechanism (18).
2. The rod protector for rod-pumped wells of claim 1, wherein: the first packing protection sealing mechanism (18) and the second packing protection sealing mechanism (19) are identical in structure and respectively comprise two rubber sealing rings (8) and sealing granules (9) arranged between the two rubber sealing rings (8).
3. The rod protector for rod-pumped wells of claim 1, wherein: the inner side of the middle part of the sealing main body outer sleeve (7) is provided with a positioning table, and two sides of the positioning table are symmetrically provided with energy continuing assemblies (6).
4. The rod protector for rod-pumped wells of claim 1 or 3, wherein: the energy continuing assembly (6) comprises an energy continuing shell (16) and an energy continuing spring (17), one end of the energy continuing shell (16) is fixed relative to the first packing protection sealing mechanism (18) or the second packing protection sealing mechanism (19), the energy continuing spring (17) is arranged in the energy continuing shell (16), and one end of the energy continuing spring (17) extends out of the other end of the energy continuing shell (16).
5. The rod protector for rod-pumped wells of claim 1, wherein: the other end of the valve seat pressing sleeve (5) is connected with the wellhead connecting base (1) through an eccentric adjusting mechanism.
6. The rod protector of an oil well pumping unit of claim 5, wherein: the eccentric adjusting mechanism comprises a universal deviation adjusting ball head (3) and a pressing cap (4), one end of the universal deviation adjusting ball head (3) is fixedly connected with the other end of a valve seat pressing sleeve (5), a ball socket which is matched with the universal deviation adjusting ball head (3) is arranged on the inner side of one end of a wellhead connecting base (1), and the pressing cap (4) is arranged on the outer side of the universal deviation adjusting ball head (3) and is in threaded connection with the wellhead connecting base (1).
7. The rod protector of an oil well pumping unit of claim 6, wherein: the universal deviation-adjusting ball head (3) is of a hollow structure, and a well-sealing valve component (2) is arranged on the inner side of the universal deviation-adjusting ball head (3).
8. The rod protector of an oil well pumping unit of claim 6, wherein: a handle (12) is arranged on the outer side of the pressing cap (4).
9. The rod protector for rod-pumped wells of claim 1, wherein: the inner sides of the sealing main body outer sleeve (7), the sealing gland (10) and the valve seat pressing sleeve (5) are respectively provided with a positioning sleeve (11), and the sucker rod (15) penetrates through the inner side of the positioning sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455158.2U CN210343286U (en) | 2019-09-03 | 2019-09-03 | Polish rod protector for oil pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455158.2U CN210343286U (en) | 2019-09-03 | 2019-09-03 | Polish rod protector for oil pumping well |
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| Publication Number | Publication Date |
|---|---|
| CN210343286U true CN210343286U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921455158.2U Active CN210343286U (en) | 2019-09-03 | 2019-09-03 | Polish rod protector for oil pumping well |
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| Country | Link |
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| CN (1) | CN210343286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374539A (en) * | 2019-09-03 | 2019-10-25 | 寰宇瀚天(北京)石油设备科技有限公司 | A kind of polished rod of pumping well protector |
-
2019
- 2019-09-03 CN CN201921455158.2U patent/CN210343286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374539A (en) * | 2019-09-03 | 2019-10-25 | 寰宇瀚天(北京)石油设备科技有限公司 | A kind of polished rod of pumping well protector |
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Effective date of registration: 20210903 Address after: Room 904, building 7, Jun'an international, Yizhuang, Daxing District, Beijing 100176 Patentee after: Zhang Ran Address before: 100000 room 0223, 1f, 51 Sanjiadian East Street, Mentougou District, Beijing Patentee before: HAOYU HAOTIAN (BEIJING) PETROLEUM EQUIPMENT TECHNOLOGY Co.,Ltd. |