CN2864087Y - Underwell anti-injection oil discharger - Google Patents
Underwell anti-injection oil discharger Download PDFInfo
- Publication number
- CN2864087Y CN2864087Y CN 200620078463 CN200620078463U CN2864087Y CN 2864087 Y CN2864087 Y CN 2864087Y CN 200620078463 CN200620078463 CN 200620078463 CN 200620078463 U CN200620078463 U CN 200620078463U CN 2864087 Y CN2864087 Y CN 2864087Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- cylindrical shell
- barrel
- inner cavity
- inner chamber
- 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
Links
Abstract
The utility model relates to a petroleum development workover tool, especially an underwell anti-injection oil discharger for the workover pump check operation or a new well brought in and the pump running operation, which is characterized in that a barrel (1) is a structure with transverse zygomorphy outside and a cavity inside, a steel wheel groove is set on top of the upper part of the inner cavity in the barrel (1), a steel wheel groove is also set on the lower part of the inner cavity upper part, the outside of the barrel midcourse is expanding type, a clamp table is set in the inner cavity of the midcourse, a sliding sleeve (2) connects with the upper port of the barrel inner cavity, a steel wheel (3) is blocked in the steel wheel groove on top of the upper part of the barrel (1) inner cavity and the outside of the sliding sleeve (2) upper part, an oil drain pin sealing ring (7) is sleeved outside of the oil drain pin (6) and conncets with the screw thread of the barrel (1), one end of the oil drain pin (6) is set in the inner cavity of the slidng sleeve (2), and a blind hole is set in the oil drain pin (6); a steel wheel groove is set on top of the sliding sleeve (2), a wash trough cooperated with the external diameter of the oil drain pin (6) is set in the middle of the sliding sleeve (2), a sealcap (5) is connects with the bottom through the fastening screw (4). This utility model saves energy, reduces environment pollution and has the advantages of high working efficiency, easy operation, safety and reliable.
Description
Technical field
The utility model relates to the oil development workover tool, is a kind of novel down-hole blowout prevention bleeder when being used for the well repairing and pump checking operation or bringing in a well down the pump operation.
Background technology
At present; domestic most of oil field is in well workover or when bringing in a well down pump operation; the phenomenon of well head oil spout usually can take place; particularly the problem neither one practical ways of spray crude oil in the oil pipe are prevented and prevention; energy waste takes place, influence job scheduling, cause the uneasy congruent factor of construction through regular meeting, even serious security incident can take place.
Summary of the invention
The purpose of this utility model is to provide a kind of down-hole blowout prevention bleeder, and its energy conservation reduces environment pollution, and high efficiency is simple to operate, safe and reliable.
The technical solution of the utility model is that blowout prevention bleeder in down-hole is characterized in that: which comprises at least cylindrical shell 1, sliding sleeve 2, steel ring 3, fastening screw 4, seal cover 5, draining pin 6, draining pin sealing ring 7; Cylindrical shell 1 is outside symmetry up and down, in the structure of cavity is arranged, a steel ring slot is arranged at cylindrical shell 1 inner chamber epimere top, pars infrasegmentalis also has a steel ring slot on the inner chamber, the stage casing of cylindrical shell 1 is outside to be the hole enlargement shape, the stage casing inner chamber has Ka Tai, and sliding sleeve 2 is slidingly connected at cylindrical shell 1 inner chamber place suitable for reading, and steel ring 3 is stuck in the steel ring slot on sliding sleeve 2 upper outside faces and cylindrical shell 1 inner chamber epimere top; Be with draining pin sealing ring 7 on the draining pin 6 and be threaded with cylindrical shell 1, an end of draining pin 6 has blind hole at the inner chamber of sliding sleeve 2 in the draining pin 6; Steel ring slot is arranged at sliding sleeve 2 tops, and there is the washing trough that matches with draining pin 6 external diameters at the middle part, and its bottom is connected with seal cover 5 by fastening screw 4.
Characteristics of the present utility model are:
In well workover or when bringing in a well down pump, the crude oil that sprays in the oil pipe need effectively be prevented and control, reduce environment pollution, increase work efficiency, guarantee safety in production.The utility model has solved this problem, also has the function of draining, energy conservation simultaneously when playing pump.Its simple in structure, easy to operate, compact dimensions, blowout prevention be reliable, open flexibly, to cross pasta long-pending big, and the deep well pump pump efficiency is not had influence, as the blowout prevention downhole tool, also has draining simultaneously when playing pump, it can blowout prevention again can draining.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Fig. 1 is that embodiment closes blowout prevention status architecture schematic diagram;
Fig. 2 is that embodiment opens oil-feed status architecture schematic diagram.
Among the figure: 1, cylindrical shell; 2, sliding sleeve; 3, steel ring; 4, fastening screw; 5, seal cover; 6, draining pin; 7, draining pin sealing ring.
The specific embodiment
Embodiment as shown in Figure 1 and Figure 2, down-hole blowout prevention bleeder structure mainly by: cylindrical shell 1, sliding sleeve 2, steel ring 3, fastening screw 4, seal cover 5, draining pin 6, draining pin sealing ring 7 etc. are formed.Cylindrical shell 1 is outside symmetry up and down, in the structure of cavity is arranged, a steel ring slot is arranged at cylindrical shell 1 inner chamber epimere top, pars infrasegmentalis also has a steel ring slot on the inner chamber, the stage casing of cylindrical shell 1 is outside to be the hole enlargement shape, and the stage casing inner chamber has Ka Tai, and sliding sleeve 2 is inserted in cylindrical shell 1 inside from cylindrical shell 1 top, sliding sleeve 2 is slidingly connected at cylindrical shell 1 inner chamber, and steel ring 3 is stuck in the steel ring slot on sliding sleeve 2 upper outside faces and cylindrical shell 1 inner chamber epimere top; Be with draining pin sealing ring 7 on the draining pin 6 and be threaded with cylindrical shell 1, an end of draining pin 6 has blind hole at the inner chamber of sliding sleeve 2 in the draining pin 6; Steel ring slot is arranged at sliding sleeve 2 tops, and there is the washing trough that matches with draining pin 6 external diameters at the middle part, and its bottom is connected with seal cover 5 by fastening screw 4.
Operating principle of the present utility model: directly be connected before this device is gone into the well between the pump barrel and standing valve of deep well pump, when going into the well, the interior steel ring 3 of steel ring slot that sliding sleeve 2 is stuck in sliding sleeve 2 upper outside faces and cylindrical shell 1 inner chamber epimere top is fixed on position of upper, closely suit with sealing surface by screw rod 4 tension seal covers 5 this moment, oil flow channel between sealing and fixing valve and the pump barrel, stoped crude oil to enter the oil pipe inner chamber, prevented the phenomenon of oily stream effectively by oil pipe passage ejection ground.Under the pump behind estimating position, the good well head of seat, connect lower piston and sucker rod, after having descended sucker rod, deadweight presses down sliding sleeve 2 by sucker rod, as shown in Figure 2, steel ring 3 is descending with sliding sleeve 2, and while sliding sleeve 2 backs down screw rod 4 and moves down, and opens seal cover 5, when sliding sleeve 2 goes downwards to bottom, the interior steel ring 3 of steel ring slot that is stuck in sliding sleeve outer face, 2 top and cylindrical shell 1 inner chamber epimere inner face enters with sliding sleeve 2 in the steel ring slot of pars infrasegmentalis on cylindrical shell 1 inner chamber, and the outer segment distance of sealing surface is stretched out in sliding sleeve 2 bottoms, and oil stream enters pump barrel and oil pipe inner chamber by the oil groove of crossing of sliding sleeve 2, on carry rod string to good dead space, pump gets final product work.
During the inspection pump, trip out sucker rod and plunger, in oil pipe, drop into diameter ф 25mm * 1.0 meters round steel bars, rod iron falls to pounding disconnected bleeder pin 6, draining pin 6 has steel pin of blind hole in being, pounds after the disconnected pin, and bleeder pin 6 is communicated with the inner chamber of sliding sleeve 2, oil in the oil pipe can flow to oil pipe and casing annulus by draining pin 6, can realize the effect of draining.
Claims (1)
1, down-hole blowout prevention bleeder is characterized in that: which comprises at least cylindrical shell (1), sliding sleeve (2), steel ring (3), fastening screw (4), seal cover (5), draining pin (6), draining pin sealing ring (7); Cylindrical shell (1) is outside symmetry up and down, in the structure of cavity is arranged, a steel ring slot is arranged at cylindrical shell (1) inner chamber epimere top, pars infrasegmentalis also has a steel ring slot on the inner chamber, the stage casing of cylindrical shell (1) is outside to be the hole enlargement shape, the stage casing inner chamber has Ka Tai, and sliding sleeve (2) is slidingly connected at cylindrical shell (1) inner chamber place suitable for reading, and steel ring (3) is stuck in the steel ring slot on sliding sleeve (2) upper outside face and cylindrical shell (1) inner chamber epimere top; Be with draining pin sealing ring (7) on the draining pin (6) and be threaded with cylindrical shell (1), an end of draining pin (6) is at the inner chamber of sliding sleeve (2), and the draining pin has blind hole in (6); Steel ring slot is arranged at sliding sleeve (2) top, and there is the washing trough that matches with draining pin (6) external diameter at the middle part, and its bottom is connected with seal cover (5) by fastening screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078463 CN2864087Y (en) | 2006-02-25 | 2006-02-25 | Underwell anti-injection oil discharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078463 CN2864087Y (en) | 2006-02-25 | 2006-02-25 | Underwell anti-injection oil discharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864087Y true CN2864087Y (en) | 2007-01-31 |
Family
ID=37676540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078463 Expired - Fee Related CN2864087Y (en) | 2006-02-25 | 2006-02-25 | Underwell anti-injection oil discharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2864087Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975042A (en) * | 2010-10-25 | 2011-02-16 | 张川民 | Fully functional anti-spouting oil drain device |
| CN110080720A (en) * | 2019-05-24 | 2019-08-02 | 盐城市弘通石油机械有限公司 | A kind of balanced type shock blowout control drip |
-
2006
- 2006-02-25 CN CN 200620078463 patent/CN2864087Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975042A (en) * | 2010-10-25 | 2011-02-16 | 张川民 | Fully functional anti-spouting oil drain device |
| CN110080720A (en) * | 2019-05-24 | 2019-08-02 | 盐城市弘通石油机械有限公司 | A kind of balanced type shock blowout control drip |
| CN110080720B (en) * | 2019-05-24 | 2023-09-26 | 盐城市弘通石油机械有限公司 | Balanced type impact blowout prevention oil drainage device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201513157U (en) | Inverse well-flushing double seal check valve | |
| CN201358755Y (en) | Underground switch slide bushing | |
| CN103615270A (en) | Single hydraulic prop hydraulic pressure three-purpose valve | |
| CN101975042B (en) | Fully functional anti-spouting oil drain device | |
| CN202157790U (en) | Oil pumping device without kill operation | |
| CN2864087Y (en) | Underwell anti-injection oil discharger | |
| CN210087274U (en) | Sand-flushing hydraulic cutting knife | |
| CN104234662B (en) | A kind of reducing sliding sleeve switch | |
| CN204082091U (en) | A kind of reducing sliding sleeve switch | |
| CN201254969Y (en) | Blowout prevention controller | |
| CN201318149Y (en) | Unidirectional inner blowout control pump-out type blanking plug | |
| CN204163964U (en) | Ring valve type hydraulic feedback oil | |
| CN201851082U (en) | Fully-functional anti-spray oil drain device | |
| CN201057019Y (en) | Slurry anti-splash valve of square shaft | |
| CN2740771Y (en) | Self-pulping arrow back pressure valve | |
| CN201358728Y (en) | Multifunctional anti-pollution pipe column | |
| CN202047840U (en) | Plug-in type hard seal manual reversing valve | |
| CN202926265U (en) | Anti-pollution well-washing valve for wellbore of heavy oil well | |
| CN201568023U (en) | Underground self-balance blowout control drip | |
| CN2711386Y (en) | Oil sucker in deep well | |
| CN101539133B (en) | Feedback type oil-well pump | |
| CN2616675Y (en) | Not-well-killing blowout-preventing oil drainage device | |
| CN204900210U (en) | Can let out oil pipe formula oil -well pump | |
| CN204532798U (en) | A kind of oil-well pump oil inlet valve | |
| CN203685229U (en) | Hydraulic three-way valve for single hydraulic prop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20140225 |