CN2509318Y - Hydraulic sealing compensating fluid increasing device - Google Patents
Hydraulic sealing compensating fluid increasing device Download PDFInfo
- Publication number
- CN2509318Y CN2509318Y CN 01266709 CN01266709U CN2509318Y CN 2509318 Y CN2509318 Y CN 2509318Y CN 01266709 CN01266709 CN 01266709 CN 01266709 U CN01266709 U CN 01266709U CN 2509318 Y CN2509318 Y CN 2509318Y
- Authority
- CN
- China
- Prior art keywords
- increasing device
- joint
- valve
- core pipe
- sealing ring
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic compensating fluid increasing device, consisting of a sucker rod, a hollow barrel, an upper joint, a lower joint and a valve ball; wherein the upper of the hollow barrel is connected to the upper joint; the lower of the barrel is connected to the joint of the valve ball housing; the valve is positioned in the valve ball housing joint; the lower of the valve ball housing is connected to the valve seat and the lower joint; the central part of the barrel has a seal ring; and the joint between the barrel and the seal ring has a hydraulic hole. The utility model is well in seal effect and long in service life.
Description
Technical field
The utility model relates to a kind of fluid increasing device, the hydraulic packing compensation fluid increasing device that particularly is connected with the petroleum industry sucker rod and is mated use.
Background technology
Existing fluid increasing device, valve ball are contained in the top of hollow pipe, and last lower contact is connected with sucker rod button shape, middle outside suit sealing ring, and its weak point is, and during use, sealing ring is easy to wear to come off, and application life is short.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of and sucker rod to join, and with oil pipe and the sealing of sucker rod annular space, valve ball is contained in the lower contact, the hydraulic packing compensation fluid increasing device that the back pressure on the pump can be decomposed step by step.
The purpose of this utility model is achieved in that and comprises sucker rod, hollow core pipe, upward lower contact, valve ball, its structural feature is: the upper end of core pipe is connected with top connection, the lower end is connected with the valve shield joint, valve ball is contained in the valve shield joint, the lower end of valve shield joint is connected with valve seat, lower contact, sealing ring is equipped with in the middle part of core pipe, and the junction of core pipe and sealing ring is drilled with the fluid power hole.
Have hydrodynamic groove on the described sealing ring.
Described top connection and sucker rod are one, are provided with fluid hole above it, and lower contact is provided with inlet opening.Valve shield joint and hollow core pipe are one.
Compared to existing technology, the utility model has the advantages that: because this device plays the multi-level piston effect, back pressure on the oil well pump is decomposed step by step, can reduce the back pressure of fluid column effectively, reduce pump leakage, make the oil pumper stable working oil well pump, reduce the alternation and the oscillating load of sucker rod and beam hanger, thereby the minimizing rod parting makes sand output well sand setting no longer edge and pump barrel, can eliminate the sand card effectively.Because valve ball is contained within the bottom of hollow core pipe, can guarantee that liquid is unblocked in addition.Moreover the junction of core pipe and sealing ring is drilled with the fluid power hole, has hydrodynamic groove on the sealing ring and has certain elasticity, when wearing and tearing take place in sealing ring, can be under the effect of fluid power expansion compensation automatically, good sealing effect, long service life, and then reduce production costs, increase economic efficiency.
The explanation of accompanying drawing drawing
Accompanying drawing is the utility model structural representation.
The specific embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
The utility model is low and design at dark deflecting well oil withdrawal pump pump efficiency, and it is installed on the sucker rod.Comprise sucker rod, hollow core pipe 2, upper and lower joint 1,8 valve balls 7, the upper end of hollow core pipe 2 is connected with top connection 1, the lower end is connected with valve shield joint 12, valve ball 7 is contained in the valve shield joint 12, the lower end of valve shield joint 12 is connected with valve seat 10, lower contact 8, and valve shield joint 12 is an one with hollow core pipe.Three sealing rings 5 are equipped with in the middle part of hollow core pipe 2, and hollow core pipe 2 is drilled with fluid power hole 14 with the junction of sealing ring 5.Be provided with spacer ring 4 between two sealing rings 5, have hydrodynamic groove 13 below the sealing ring 5, the outside of sealing ring 5 is covered with protective cover 6, and protective cover 6 usefulness locknuts 3 are fastening.Top connection 1 is an one with sucker rod, is the joint of sucker rod, is provided with fluid hole 15 above it, and lower contact 8 is provided with inlet opening 9.
Using method of the present utility model: can be next or several by the degree of depth of well, also can directly be connected a certain section of sucker rod according to the concrete condition of well, sand output well preferably is connected the first segment fluid increasing device between 300 meters-400 meters of the pump tops, and the piston of pump is difficult for blocking like this.Can be more than 400 meters by the concrete condition adjunction fluid increasing device of average well section and well.Use not only is difficult for holddown but also can reduces pump leakage like this, improves pump efficiency.In addition, the oil well of fluid increasing device is installed, must be cleaned, and pass through with oil pipe rule to oil pipe.
Claims (4)
1, a kind of hydraulic packing compensation fluid increasing device, comprise sucker rod, hollow core pipe, go up lower contact, valve ball, it is characterized in that: the upper end of core pipe is connected with top connection, the lower end is connected with the valve shield joint, valve ball is contained in the valve shield joint, the lower end of valve shield joint is connected with valve seat, lower contact, and sealing ring is equipped with in the middle part of core pipe, and the junction of core pipe and sealing ring is drilled with the fluid power hole.
2, hydraulic packing compensation fluid increasing device according to claim 1 is characterized in that: have hydrodynamic groove on the sealing ring.
3, hydraulic packing according to claim 1 compensation fluid increasing device, its feature in: top connection and sucker rod are one, are provided with fluid hole above it, and lower contact is provided with inlet opening.
4, hydraulic packing according to claim 1 compensation fluid increasing device, its feature in: valve shield joint and hollow core pipe are one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266709 CN2509318Y (en) | 2001-10-26 | 2001-10-26 | Hydraulic sealing compensating fluid increasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266709 CN2509318Y (en) | 2001-10-26 | 2001-10-26 | Hydraulic sealing compensating fluid increasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2509318Y true CN2509318Y (en) | 2002-09-04 |
Family
ID=33673330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266709 Expired - Fee Related CN2509318Y (en) | 2001-10-26 | 2001-10-26 | Hydraulic sealing compensating fluid increasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2509318Y (en) |
-
2001
- 2001-10-26 CN CN 01266709 patent/CN2509318Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |