CN214062914U - Sucker rod string loading device for oil pumping unit - Google Patents
Sucker rod string loading device for oil pumping unit Download PDFInfo
- Publication number
- CN214062914U CN214062914U CN202023067349.7U CN202023067349U CN214062914U CN 214062914 U CN214062914 U CN 214062914U CN 202023067349 U CN202023067349 U CN 202023067349U CN 214062914 U CN214062914 U CN 214062914U
- Authority
- CN
- China
- Prior art keywords
- joint
- pressure transmission
- liquid outlet
- liquid inlet
- inner cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a sucker rod string loading device for a pumping unit, which comprises an upper joint, a lower joint, a middle joint and an extension nipple; the lower end of the upper joint is connected with the upper sealing outer cylinder, the lower end of the upper sealing outer cylinder is connected with the pressure transmission joint through the middle joint, and the lower end of the pressure transmission joint is connected with the lengthened short section through the lower joint; an upper sealing inner cylinder is arranged in the cavity of the upper sealing outer cylinder in a clearance fit manner, and the upper end of the upper sealing inner cylinder is connected with a liquid outlet joint through a double male joint; the upper end of the lower sealing outer cylinder in the lengthened nipple cavity is fixedly connected with a pressure transmission joint; the upper end of the lower sealing inner cylinder is connected with the upper sealing inner cylinder through an inner cylinder joint, and the lower end of the lower sealing inner cylinder is connected with a liquid inlet joint; a liquid outlet through hole is formed in the side wall of the liquid outlet joint, and a liquid inlet through hole is formed in the side wall of the liquid inlet joint; the side wall of the pressure transmission joint is provided with a pressure transmission through hole. The utility model is suitable for a reciprocating motion's of beam-pumping unit sucker rod post uses, has improved sucker rod post down speed.
Description
Technical Field
The utility model relates to an improvement of beam-pumping unit, specific sucker rod string loading device for beam-pumping unit that says so, it utilizes oil pipe liquid column self gravity, produces decurrent effort to the sucker rod string, is favorable to down of sucker rod string, is applicable to the down obstructed oil well of sucker rod string.
Background
In the process of pumping oil by using the pumping unit, the pumping rod string performs reciprocating motion, and due to reasons of well deviation, oil viscosity, underground pump and the like, the pumping rod string is blocked from going downwards, and can be bent and deformed, so that eccentric wear and stroke loss of the rod pipe are caused, and the pump efficiency and the service life are influenced. Against such problems, there are three measures generally taken at present: 1. the lower end of the sucker rod string is connected with a weighting rod with a certain length, and the defects are that the outer diameter is larger, and the viscous resistance of oil is large; the weighting rod also has bending deformation, is easy to generate eccentric wear and has poor loading effect. 2. The wear-resistant coating is lined on the inner wall of the oil pipe, and the defect is that the coating is easy to peel off in the using and wearing processes, so that an oil well is polluted, and the pump is blocked; the inner hole of the oil pipe is reduced, and the application range is limited; the cost is high. 3. The sucker rod with the centralizing and eccentric wear preventing functions has the disadvantages that the centralizer arranged on the sucker rod is easy to wear and drop, and the cost is high.
Disclosure of Invention
An object of the utility model is to provide an install in the descending obstructed oil well of sucker rod post such as viscous crude, inclined shaft, be applicable to the reciprocating motion's of beam-pumping unit sucker rod post use, simple structure, simple to operate utilizes liquid post self gravity in the oil pipe, to the decurrent effort of sucker rod post loading, is favorable to the sucker rod post loading device for the descending rod-pumping unit of sucker rod post.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the sucker rod string loading device for the pumping unit comprises an upper joint, a lower joint, a middle joint and a lengthened short section; the method is characterized in that: the lower end of the upper joint is fixedly connected with the upper end of the upper sealing outer cylinder in a threaded manner, the lower end of the upper sealing outer cylinder is connected with the upper end of a pressure transmission joint through an intermediate joint, and the lower end of the pressure transmission joint is connected with the upper end of the lengthened short section through a lower joint; the upper sealing inner cylinder is arranged in the cavity of the upper sealing outer cylinder in a clearance fit manner, and the upper end of the upper sealing inner cylinder is connected with the lower end of the liquid outlet joint through a double male joint; a lower sealing outer cylinder is arranged in the lengthened nipple cavity, and the upper end of the lower sealing outer cylinder is fixedly connected with the lower end of the pressure transmission joint; the lower sealing inner cylinder is arranged in the cavity of the lower sealing outer cylinder in a clearance fit manner, the upper end of the lower sealing inner cylinder is connected with the lower end of the upper sealing inner cylinder through an inner cylinder joint, and the lower end of the lower sealing inner cylinder is provided with a liquid inlet joint in a threaded connection manner; the side wall of the liquid outlet joint is provided with a liquid outlet through hole, the inner cavity of the liquid outlet joint is communicated with the inner cavity of the upper joint through the liquid outlet through hole, the inner cavity of the liquid outlet joint is communicated with the inner cavity of the double male joint, the inner cavity of the upper sealed inner cylinder, the inner cavity of the inner cylinder joint, the inner cavity of the lower sealed inner cylinder and the inner cavity of the liquid inlet joint, the side wall of the liquid inlet joint is provided with a liquid inlet through hole, and the inner cavity of the liquid inlet joint is communicated with the inner cavity of the lengthened short section through the liquid inlet through hole; the side wall of the pressure transmission joint is provided with a pressure transmission through hole, the pressure transmission through hole is communicated with the inner cavity of the pressure transmission joint, and the inner cavity of the pressure transmission joint is communicated with the inner cavity of the middle joint and the inner cavity of the upper sealing outer barrel.
The upper end part of the pressure transmission joint is provided with a pressure transmission upper interface, the lower end part of the pressure transmission joint is provided with a pressure transmission lower interface, the side wall of the pressure transmission joint is provided with 2-4 pressure transmission through holes, and the pressure transmission lower interface, the pressure transmission upper interface and the pressure transmission through holes are communicated with the inner cavity of the pressure transmission joint; the outer wall of the pressure transmission upper connector is provided with an external thread, the outer wall of the pressure transmission lower connector is provided with an external thread, and the inner wall of the pressure transmission lower connector is provided with an internal thread.
The upper end part of the liquid outlet joint is provided with a liquid outlet upper interface, the lower end part of the liquid outlet joint is provided with a liquid outlet lower interface, the side wall of the liquid outlet joint is provided with 2-4 liquid outlet through holes, and the liquid outlet lower interface, the liquid outlet upper interface and the liquid outlet through holes are all communicated with the inner cavity of the liquid outlet joint; the inner wall of the liquid outlet upper connector is provided with internal threads, and the inner wall of the liquid outlet lower connector is provided with internal threads.
The lower end of the liquid inlet joint is fixedly provided with a liquid inlet lower end joint, the side wall of the liquid inlet joint is provided with 2-4 liquid inlet through holes, the upper end part of the liquid inlet joint is provided with a liquid inlet upper interface, and the liquid inlet through holes and the liquid inlet upper interface are communicated with the inner cavity of the liquid inlet joint; the outer wall of the lower end connector of the liquid inlet is provided with an external thread, and the outer wall of the upper connector of the liquid inlet is provided with an external thread.
The beneficial effects of the utility model reside in that: the oil pumping rod loading device is installed in an oil well with a blocked down-going sucker rod string such as heavy oil, an inclined well and the like, is suitable for the sucker rod string with reciprocating motion of a pumping unit, has a simple structure, is convenient to install, and utilizes the self gravity of the liquid column in an oil pipe to load downward acting force on the sucker rod string, so that the down-going speed of the sucker rod string is improved.
Drawings
FIG. 1 is a schematic sectional view of the structure of the present invention;
fig. 2 is a schematic view of the pressure transmission joint of the present invention;
fig. 3 is an enlarged schematic view of the liquid outlet joint of the present invention;
fig. 4 is an enlarged schematic view of the liquid inlet joint of the present invention.
In the figure: 1. an upper joint; 2. an upper sealing outer cylinder; 3. an intermediate joint; 4. a pressure transmission joint; 41. a lower interface is transmitted; 42. transmitting pressure to an upper interface; 43. a pressure transmitting through hole; 5. a lower joint; 6. lengthening the short section; 7. a liquid outlet joint; 71. a liquid outlet lower interface; 72. an outlet upper interface; 73. a liquid outlet through hole; 8. a double male connector; 9. an upper sealing inner cylinder; 10. an inner cylinder joint; 11. a lower sealing inner cylinder; 12. a lower sealing outer cylinder; 13. a liquid inlet joint; 131. the lower end of the liquid inlet is connected; 132. an upper inlet of the liquid; 133. and liquid inlet through holes.
Detailed Description
The present invention is manufactured with reference to fig. 1, 2, 3, and 4.
The sucker rod string loading device for the oil pumping unit comprises an upper joint 1, a lower joint 5, a middle joint 3 and a lengthened short section 6, wherein the upper joint 1 is fixedly connected with the lower end of an upper oil pipe through threads, and the lower end of the lengthened short section 6 is fixedly connected with the upper end of a lower oil pipe through threads; the method is characterized in that: the lower end of the upper joint 1 is fixedly connected with the upper end of an upper sealing outer cylinder 2 through threads, the lower end of the upper sealing outer cylinder 2 is connected with the upper end of a pressure transmission joint 4 through an intermediate joint 3, and the lower end of the pressure transmission joint 4 is connected with the upper end of a lengthened short section 6 through a lower joint 5; an upper sealing inner cylinder 9 is arranged in the cavity of the upper sealing outer cylinder 2 in a clearance fit manner, the upper end of the upper sealing inner cylinder 9 is connected with the lower end of a liquid outlet joint 7 through a double male joint 8, and the upper end of the liquid outlet joint 7 is fixedly connected with the lower end of an upper sucker rod string in a threaded manner; a lower sealing outer cylinder 12 is arranged in the cavity of the lengthened short section 6, and the upper end of the lower sealing outer cylinder 12 is fixedly connected with the lower end of the pressure transmission joint 4; a lower sealing inner cylinder 11 is arranged in the cavity of the lower sealing outer cylinder 12 in a clearance fit manner, the upper end of the lower sealing inner cylinder 11 is connected with the lower end of an upper sealing inner cylinder 9 through an inner cylinder joint 10, the lower end of the lower sealing inner cylinder 11 is in threaded connection with a liquid inlet joint 13, and the lower end of the liquid inlet joint 13 is fixedly connected with the upper end of a sucker rod string below through threads; the side wall of the liquid outlet joint 7 is provided with a liquid outlet through hole 73, the inner cavity of the liquid outlet joint 7 is communicated with the inner cavity of the upper joint 1 through the liquid outlet through hole 73, the inner cavity of the liquid outlet joint 7 is communicated with the inner cavity of the double male joint 8, the inner cavity of the upper sealed inner cylinder 9, the inner cavity of the inner cylinder joint 10, the inner cavity of the lower sealed inner cylinder 11 and the inner cavity of the liquid inlet joint 13, the side wall of the liquid inlet joint 13 is provided with a liquid inlet through hole 133, and the inner cavity of the liquid inlet joint 13 is communicated with the inner cavity of the lengthened short section 6 through the liquid inlet through hole 133; the side wall of the pressure transmission joint 4 is provided with a pressure transmission through hole 43, the pressure transmission through hole 43 is communicated with the inner cavity of the pressure transmission joint 4, and the inner cavity of the pressure transmission joint 4 is communicated with the inner cavity of the middle joint 3 and the inner cavity of the upper sealing outer cylinder 2.
The upper end part of the pressure transmission joint 4 is provided with an upper pressure transmission interface 42, the lower end part of the pressure transmission joint 4 is provided with a lower pressure transmission interface 41, the side wall of the pressure transmission joint 4 is provided with 2-4 pressure transmission through holes 43, and the lower pressure transmission interface 41, the upper pressure transmission interface 42 and the pressure transmission through holes 43 are all communicated with the inner cavity of the pressure transmission joint 4; pass and be equipped with the external screw thread on the outer wall of pressure upper connector 42 to with the lower extreme threaded connection of intermediate head 3, pass and be equipped with the external screw thread on the outer wall of pressure lower connector 41, so that with the upper end threaded connection of lower clutch 5, pass and be equipped with the internal thread on the inner wall of pressure lower connector 41, so that with the upper end threaded connection of sealed urceolus 12 down.
The upper end part of the liquid outlet joint 7 is provided with a liquid outlet upper interface 72, the lower end part of the liquid outlet joint 7 is provided with a liquid outlet lower interface 71, the side wall of the liquid outlet joint 7 is provided with 2-4 liquid outlet through holes 73, and the liquid outlet lower interface 71, the liquid outlet upper interface 72 and the liquid outlet through holes 73 are communicated with the inner cavity of the liquid outlet joint 7; the inner wall of the upper liquid outlet port 72 is provided with internal threads so as to be fixedly connected with the lower end threads of the sucker rod string above, and the inner wall of the lower liquid outlet port 71 is provided with internal threads so as to be fixedly connected with the upper end threads of the double male connector 8.
The lower end of the liquid inlet joint 13 is fixedly provided with a liquid inlet lower end joint 131, the side wall of the liquid inlet joint 13 is provided with 2-4 liquid inlet through holes 133, the upper end part of the liquid inlet joint 13 is provided with a liquid inlet upper connector 132, and the liquid inlet through holes 133 and the liquid inlet upper connector 132 are communicated with the inner cavity of the liquid inlet joint 13; the outer wall of the lower inlet end connector 131 is provided with an external thread to be fixedly connected with the upper end thread of the sucker rod string below, and the outer wall of the upper inlet end connector 132 is provided with an external thread to be fixedly connected with the lower end thread of the lower sealing inner cylinder 11.
When the utility model is used, the upper joint 1 is fixedly connected with the lower end of the upper oil pipe through threads, and the lower end of the lengthening short section 6 is fixedly connected with the upper end of the lower oil pipe through threads; the lower end connector 131 of the liquid inlet connector 13 is fixedly connected with the upper end of the sucker rod column below through threads, and the upper end of the liquid outlet connector 7 is fixedly connected with the lower end of the sucker rod column above through threads; and is thus lowered into the well. In the working process, the liquid outlet joint 7, the double male joint 8, the upper sealing inner cylinder 9, the inner cylinder joint 10, the lower sealing inner cylinder 11 and the liquid inlet joint 13 move up and down along with the sucker rod string, and oil enters the upper oil pipe cavity through the liquid inlet through hole 133 of the liquid inlet joint 13, the inner cavity of the lower sealing inner cylinder 11, the inner cavity of the upper sealing inner cylinder 9 and the liquid outlet through hole 73 of the liquid outlet joint 7. Because the annular cavity between the upper sealing outer cylinder 2 and the lower sealing inner cylinder 11 is communicated with the oil well through the pressure transfer through hole 43 on the side wall of the pressure transfer joint 4, at the moment, for the section of the annular cavity between the upper sealing outer cylinder 2 and the lower sealing inner cylinder 11, the upper part of the annular cavity is pressed downwards by a liquid column in an oil pipe, and the lower part of the annular cavity is pressed upwards by the liquid level in the oil well, during normal work, the pressure of the liquid column in the oil pipe is far greater than the pressure of the liquid level in the oil well, and a downward feedback acting force can be generated on the annular section to push the sucker rod string.
Claims (4)
1. A sucker rod string loading device for a pumping unit comprises an upper joint (1), a lower joint (5), a middle joint (3) and a lengthened short section (6); the method is characterized in that: the lower end of the upper joint (1) is fixedly connected with the upper end of the upper sealing outer cylinder (2) through threads, the lower end of the upper sealing outer cylinder (2) is connected with the upper end of a pressure transmission joint (4) through an intermediate joint (3), and the lower end of the pressure transmission joint (4) is connected with the upper end of a lengthened short section (6) through a lower joint (5); an upper sealing inner cylinder (9) is arranged in the cavity of the upper sealing outer cylinder (2) in a clearance fit manner, and the upper end of the upper sealing inner cylinder (9) is connected with the lower end of the liquid outlet joint (7) through a double male joint (8); a lower sealing outer cylinder (12) is arranged in the cavity of the lengthened short section (6), and the upper end of the lower sealing outer cylinder (12) is fixedly connected with the lower end of the pressure transmission joint (4); a lower sealing inner cylinder (11) is arranged in the cavity of the lower sealing outer cylinder (12) in a clearance fit manner, the upper end of the lower sealing inner cylinder (11) is connected with the lower end of the upper sealing inner cylinder (9) through an inner cylinder joint (10), and the lower end of the lower sealing inner cylinder (11) is provided with a liquid inlet joint (13) in a threaded connection manner; the side wall of the liquid outlet joint (7) is provided with a liquid outlet through hole (73), the inner cavity of the liquid outlet joint (7) is communicated with the inner cavity of the upper joint (1) through the liquid outlet through hole (73), the inner cavity of the liquid outlet joint (7) is communicated with the inner cavity of the double male joint (8), the inner cavity of the upper sealing inner cylinder (9), the inner cavity of the inner cylinder joint (10), the inner cavity of the lower sealing inner cylinder (11) and the inner cavity of the liquid inlet joint (13), the side wall of the liquid inlet joint (13) is provided with a liquid inlet through hole (133), and the inner cavity of the liquid inlet joint (13) is communicated with the inner cavity of the lengthening short section (6) through the; and a pressure transmission through hole (43) is formed in the side wall of the pressure transmission joint (4), the pressure transmission through hole (43) is communicated with the inner cavity of the pressure transmission joint (4), and the inner cavity of the pressure transmission joint (4) is communicated with the inner cavity of the middle joint (3) and the inner cavity of the upper sealing outer barrel (2).
2. The rod loading apparatus of claim 1, wherein: the upper end part of the pressure transmission joint (4) is provided with a pressure transmission upper interface (42), the lower end part of the pressure transmission joint (4) is provided with a pressure transmission lower interface (41), the side wall of the pressure transmission joint (4) is provided with 2-4 pressure transmission through holes (43), and the pressure transmission lower interface (41), the pressure transmission upper interface (42) and the pressure transmission through holes (43) are communicated with the inner cavity of the pressure transmission joint (4); the outer wall of the pressure transmission upper connector (42) is provided with external threads, the outer wall of the pressure transmission lower connector (41) is provided with external threads, and the inner wall of the pressure transmission lower connector (41) is provided with internal threads.
3. The rod loading apparatus of claim 1, wherein: the upper end part of the liquid outlet joint (7) is provided with a liquid outlet upper interface (72), the lower end part of the liquid outlet joint (7) is provided with a liquid outlet lower interface (71), the side wall of the liquid outlet joint (7) is provided with 2-4 liquid outlet through holes (73), and the liquid outlet lower interface (71), the liquid outlet upper interface (72) and the liquid outlet through holes (73) are communicated with the inner cavity of the liquid outlet joint (7); the inner wall of the liquid outlet upper connector (72) is provided with internal threads, and the inner wall of the liquid outlet lower connector (71) is provided with internal threads.
4. The rod loading apparatus of claim 1, wherein: the lower end of the liquid inlet joint (13) is fixedly provided with a liquid inlet lower end joint (131), the side wall of the liquid inlet joint (13) is provided with 2-4 liquid inlet through holes (133), the upper end part of the liquid inlet joint (13) is provided with a liquid inlet upper connector (132), and the liquid inlet through holes (133) and the liquid inlet upper connector (132) are communicated with the inner cavity of the liquid inlet joint (13); the outer wall of the lower end connector (131) of the liquid inlet is provided with an external thread, and the outer wall of the upper connector (132) of the liquid inlet is provided with an external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023067349.7U CN214062914U (en) | 2020-12-18 | 2020-12-18 | Sucker rod string loading device for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023067349.7U CN214062914U (en) | 2020-12-18 | 2020-12-18 | Sucker rod string loading device for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214062914U true CN214062914U (en) | 2021-08-27 |
Family
ID=77410499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023067349.7U Active CN214062914U (en) | 2020-12-18 | 2020-12-18 | Sucker rod string loading device for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214062914U (en) |
-
2020
- 2020-12-18 CN CN202023067349.7U patent/CN214062914U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214062914U (en) | Sucker rod string loading device for oil pumping unit | |
| CN207332798U (en) | A kind of casing swage lifting type pressure release discharge device | |
| CN109057732B (en) | Slurry type grouting circulating device and using method thereof | |
| CN208089517U (en) | A kind of plug-in type thick oil pump | |
| CN212583677U (en) | Hydraulic load-reducing oil pumping device | |
| CN115111146A (en) | Anti-abrasion load-shedding oil pumping device of three-dimensional curved well and using method thereof | |
| CN1056436C (en) | Multiple-range oil-well pump | |
| CN202039791U (en) | Built-in fixed sucker rod centralizer | |
| CN106996274B (en) | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear | |
| CN205172529U (en) | Can lubricate abrasionproof oil jack | |
| CN114562448B (en) | Multi-section plunger oil pump for pumping thickened oil | |
| CN112081732B (en) | Under-pump weighting connector, oil pump and oil extraction method | |
| CN214697800U (en) | Hydraulic load-reducing oil pumping device | |
| CN110617203B (en) | Pump cylinder inverted suspension up-down stroke liquid inlet and outlet oil pump | |
| CN113944609B (en) | Hydraulic power-assisted deep-pumping pilot production system device | |
| CN220909667U (en) | Rod-type relay load-shedding deep drawing device | |
| CN217712494U (en) | Liquid one-way control device for underground tubular pump | |
| CN212867445U (en) | Oil pipe telescopic compensator | |
| CN2849231Y (en) | Oil lubricating anti offset wear roofbolt | |
| CN2547904Y (en) | Deep-extracting oil-well pump | |
| CN2725573Y (en) | Hydraulic driven rodless pump device | |
| CN111305781B (en) | Displacement device for oil field underground hydraulic joint cutting | |
| CN210371115U (en) | Hydraulic feedback type under-pump weighted oil well pump | |
| CN201679699U (en) | Oil-well pump of four-proofing deep well | |
| CN202140286U (en) | Novel energy-saving load-shedding oil well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A loading device of sucker rod string for pumping unit Effective date of registration: 20221024 Granted publication date: 20210827 Pledgee: Laiwu branch of China Postal Savings Bank Co.,Ltd. Pledgor: SHANDONG WEIMA PUMPS MANUFACTURING Co.,Ltd. Registration number: Y2022980019328 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |