CN1865653A - Oil-drainage device of oil well - Google Patents
Oil-drainage device of oil well Download PDFInfo
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- CN1865653A CN1865653A CN 200610044842 CN200610044842A CN1865653A CN 1865653 A CN1865653 A CN 1865653A CN 200610044842 CN200610044842 CN 200610044842 CN 200610044842 A CN200610044842 A CN 200610044842A CN 1865653 A CN1865653 A CN 1865653A
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- oil
- inner sliding
- sliding sleeve
- seating nipple
- lower contact
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Abstract
The invention relates to an oil discharger of oil well, which comprises an upper connector, a working cylinder and a lower connector. Wherein, said working cylinder has oil outlet near the lower connector; the circumferences of the walls of upper and lower connectors are distributed with chamfer annular grooves; said working cylinder contains inner sliding sheath whose inner wall is mounted with at least two fixing elements along its circumference; the parts of fixing elements at two ends of inner sliding sheath are mounted with hook ratchet relative to the annular groove. The invention improves the motion reliability of mechanical element, with simple structure, while it can be repeated used to reduce the producing cost of oil.
Description
Technical field
The present invention relates to oil well oil recovery corollary apparatus, especially relate to the oil-drainage device of oil well that uses in a kind of production of recovering the oil.
Background technology
At present, oil field development has mainly adopted bar to recover the oil, when oil well production a period of time, in the time of need keeping in repair, trip out sucker rod in the well, when playing bar, close because of oil well pump, the crude oil that causes being deposited in the sucker rod can't leak in the well, along with the lifting of sucker rod is constantly splashed down around the well head, cause not only having wasted resource but also polluted ground environment, also brought unsafe factor and influenced maintenance activity.Oil drainage method during oilfield operation at present is a lot, but the oil well pump of salvaging standing valve method, peg type bleeder, rotation draining tubing anchor are arranged, but in the above-mentioned oil drainage method, the draining work that has is loaded down with trivial details, and the reliability that has is low, and is often malfunctioning; The drainage device that has belongs to disposable apparatus, and the cost height has increased high expense to Petroleum Production.
Summary of the invention
Technical problem to be solved by this invention has provided a kind of oil-drainage device of oil well, and it is not only simple in structure, the dependability height, and can reuse.
For solving the problems of the technologies described above, technical scheme of the present invention is: oil-drainage device of oil well, comprise the top connection, seating nipple and the lower contact that connect successively, be provided with the draining hole near the lower contact end on the described seating nipple, upwards be respectively equipped with chamfering formula annular groove the week of described top connection and lower contact inwall, be provided with slidably inner sliding sleeve in the described seating nipple, inner sliding sleeve inwall upper edge circumferentially is equipped with at least two fixed bodies, and fixation postures is provided with respectively and the corresponding hook-shaped pawl of annular groove in place, inner sliding sleeve two ends.
As a kind of improvement, described fixed body circumferentially evenly distributes along the inner sliding sleeve inwall.
Owing to adopted the oil-drainage device of oil well of said structure, by adopting the top connection, seating nipple and the lower contact that connect successively on seating nipple, to be provided with the draining hole, and at the chamfering formula that the is respectively equipped with annular groove of top connection and lower contact inwall, in seating nipple, be provided with inner sliding sleeve, and be provided with two ends at the inwall of inner sliding sleeve and be respectively equipped with and the corresponding hook-shaped pawl fixed body of annular groove, in seating nipple, slides and fix by ratchet control inner sliding sleeve.Realization is to the opening and closing in draining hole, thus the draining of realization oil well.The mechanical component motion that constitutes this device is reliable, make the unlatching of draining process or when closing more rapidly flexibly, operate simplyr, and this device can repeatedly use, thereby reduced the cost of production of oil.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
Fig. 1 is an oil-drainage device of oil well structural representation of the present invention;
Fig. 2 be among Fig. 1 A-A to sectional view;
Fig. 3 is that the hook-shaped pawl in the oil-drainage device of oil well of the present invention cooperates schematic diagram with annular groove.
The specific embodiment
According to Fig. 1, Fig. 2 and shown in Figure 3, oil-drainage device of oil well of the present invention comprises top connection 1, seating nipple 2 and the lower contact 3 that connects successively, and sucker rod 9 and mandrel 8 can pass from the inner chamber that top connection 1, seating nipple 2 and lower contact 3 are formed by connecting.End near lower contact 3 on seating nipple 2 is provided with draining hole 5, and draining hole 5 can be a plurality of along being circumferentially with of seating nipple 2 according to the working condition of reality.Upwards be respectively equipped with chamfering formula annular groove 6 week at top connection 1 and lower contact 3 inwalls, and in seating nipple 2, be provided with the inner sliding sleeve 4 that can slide along the inwall of seating nipple 2, in inner sliding sleeve 4 inwall upper edges at least two fixed bodies 7 are installed circumferentially, being positioned at place, inner sliding sleeve 4 two ends on the fixed body 7 is provided with respectively and annular groove 6 corresponding hook-shaped pawl 71, these hook-shaped pawl 71 and annular groove 6 are corresponding and can be stuck in the annular groove 6, thereby inner sliding sleeve 4 is fixed on the end that is positioned at top connection 1 in the seating nipple 2 or an end of lower contact 3, and can open or closure by the bump of mandrel 8, thereby open or close the draining hole 5 that is arranged on the seating nipple 2, the oil draining function of realization drainage device to realize the slip of inner sliding sleeve 4 in seating nipple 2.In order to make this device reliable operation, as shown in Figure 2, can be with fixed body 7 circumferentially evenly distributing along inner sliding sleeve 4 inwalls, and can will link together by linkage between two hook-shaped pawl 71 that be arranged on each fixed body 7, when even the hook-shaped pawl 71 of fixed body 7 one ends is opened, hook-shaped pawl 71 closures of the other end then are as the hook-shaped pawl 71 that is hinged on fixed body 7 two ends and promotes by spring respectively that adopts connecting rod to connect.
As shown in Figure 1, the top connection 1 of this oil-drainage device of oil well is connected with oil pick-up tube respectively with lower contact 3, when oil well is normally pumped, in seating nipple 2, be positioned at hook ratchet 71 closures of top connection 1 one ends on the fixed body 7, and the hook ratchet 71 that is positioned at lower contact 3 one ends opens and is stuck in the annular groove 6 of lower contact 3, and at this moment inner sliding sleeve 4 is in the bottom of seating nipple 2, and the draining hole 5 on the seating nipple 2 is sealed.In that being tripped out, keeps in repair sucker rod 9, when the sucker rod 9 that is connecting mandrel 8 goes upward to oil-drainage device of oil well, be positioned at the hook ratchet 71 of lower contact 3 one ends on the mandrel 8 bump fixed bodies 7, deviate from the closed and annular groove from the lower contact 3 of the hook ratchet 71 of this end, the hook ratchet that is positioned at top connection 1 one ends is then opened, move on the inner sliding sleeve 4 simultaneously, when the hook ratchet 71 that is positioned at top connection 1 one ends enters the annular groove of top connection 1, open hook ratchet 71 is stuck in top connection 1 annular groove, inner sliding sleeve 4 arrives the top of seating nipple 2, draining hole 5 on the seating nipple 2 is exposed, and draining hole 5 is opening, and draining is achieved.
Claims (2)
1, oil-drainage device of oil well, comprise the top connection (1), seating nipple (2) and the lower contact (3) that connect successively, described seating nipple (2) is gone up near lower contact (3) end and is provided with draining hole (5), it is characterized in that: described top connection (1) and lower contact (3) inwall upwards be respectively equipped with chamfering formula annular groove (6) week, be provided with slidably inner sliding sleeve (4) in the described seating nipple (2), inner sliding sleeve (4) inwall upper edge circumferentially is equipped with at least two fixed bodies (7), and fixed body (7) is positioned at place, inner sliding sleeve (4) two ends and is provided with respectively and the corresponding hook-shaped pawl (71) of annular groove (6).
2, oil-drainage device of oil well according to claim 1 is characterized in that: described fixed body (7) circumferentially evenly distributes along inner sliding sleeve (4) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044842 CN1865653A (en) | 2006-06-16 | 2006-06-16 | Oil-drainage device of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044842 CN1865653A (en) | 2006-06-16 | 2006-06-16 | Oil-drainage device of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1865653A true CN1865653A (en) | 2006-11-22 |
Family
ID=37424778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610044842 Pending CN1865653A (en) | 2006-06-16 | 2006-06-16 | Oil-drainage device of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1865653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122004A (en) * | 2016-08-10 | 2016-11-16 | 姜经志 | Sand discharge pressure release single flow device |
-
2006
- 2006-06-16 CN CN 200610044842 patent/CN1865653A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122004A (en) * | 2016-08-10 | 2016-11-16 | 姜经志 | Sand discharge pressure release single flow device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |