CN203729904U - Sealing release mechanism for blowout control connecting-tripping device - Google Patents
Sealing release mechanism for blowout control connecting-tripping device Download PDFInfo
- Publication number
- CN203729904U CN203729904U CN201420105210.2U CN201420105210U CN203729904U CN 203729904 U CN203729904 U CN 203729904U CN 201420105210 U CN201420105210 U CN 201420105210U CN 203729904 U CN203729904 U CN 203729904U
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- China
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- center
- sealing
- tripping device
- ring
- release mechanism
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- Expired - Fee Related
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Abstract
The utility model relates to a sealing release mechanism for a blowout control connecting-tripping device. The sealing release mechanism is applied to oilfield underground constructions. A sealing release sleeve assembly comprises a center sleeve; the lower sidewall of the center sleeve is provided with pressure transmission holes; the outer wall of the center sleeve is sleeved with a seal ring which is provided with holes in the upper and lower portions; a lining ring is fitted to the upper end and inner wall of the center sleeve; the upper portion of the seal ring, the center sleeve and the lower portion of the lining ring are relatively fixed through connecting pins. The sealing release mechanism has the advantages that a pressure transmission and release function is added to the original functions, a step of injecting water and pressure into an oil tube from a cement truck is omitted, machine-team of the cement truck and construction time are saved, and production cost is decreased effectively.
Description
Technical field
A kind of oil well pump blowout prevention, uncoupling instrument used when the utility model relates to oil field well construction operation, a kind of sealing of the blowout-prevention connecting-tripping device for ф 70mm and above oil well pump blowout prevention and sucker rod uncoupling relieving mechanism, realizes snubbing serving specifically.
Background technology
At present, use in a large number blowout-prevention connecting-tripping device as jet-preventing tool in oil pipe for the above oil well pump of Ф 70mm, can realize the effect of one-stop operation, not kill-job of secondary operation blowout prevention.When one-stop operation construction, lock tube on on-off connector center-pole is stuck in the sealed step place of seating nipple, on the claw of fastener is stuck in and gets out of a predicament or an embarrassing situation in seating nipple, the common Compress Spring A of lock tube and fastener, B, make stop collar projection withstand the claw of fastener, play the effect of hanging oil pump piston, lock tube sealed end contacts with the sealed step of seating nipple under the rational faculty of spring, plays the effect of sealing oil pipe blowout.Under oil well pump behind shaft bottom, on-off connector is docked to pawl to be connected and to be lowered in oil pipe with sucker rod, docking pawl docks with center-pole butt joint, fills clear water in oil pipe, is just suppressing 3-5MPa, compression lock tube is descending, Compress Spring forces stop collar descending, makes the projection of stop collar get out of the way catching projection, and claw is got out of a predicament or an embarrassing situation and separated with seating nipple, open oil flow channel in oil pipe, realize normal oil well pump work.But the blowout-prevention connecting-tripping device using is now at lower complete sucker rod, need in oil pipe, to fill clear water with cementing truck after completing docking, just suppressing 3-5MPa, the hitch of blowout-prevention connecting-tripping device is thrown off, take equipment, time-consuming, expense is artificial, increase construction cost.
Utility model content
In order to reduce construction cost, the utility model provides a kind of blowout-prevention connecting-tripping device sealing relieving mechanism.This mechanism has increased pressure transmission release function on the basis of original function, has saved cementing truck to water filling in oil pipe and has suppressed operation, has saved cementing truck machine-team and engineering time, effectively reduces production costs.
The technical solution of the utility model is: a kind of blowout-prevention connecting-tripping device sealing relieving mechanism, comprise that the sealing being placed in seating nipple discharges cover assembly, sealing discharges cover assembly and comprises center, on described center lower sides with pressure transmission hole, the upper and lower joint ring with holes of center outer wall suit, upper surface and the inwall of center are equipped with inner bushing ring; And the bottom of the top of above-mentioned joint ring, center and inner bushing ring is relatively fixing by connecting pin.
Connecting hole between above-mentioned center and inner bushing ring and joint ring is axial long hole.
The beneficial effects of the utility model are: in such scheme, sealing shroud in existing open flow device is improved, promote lower liner cover at sucker rod gravity descending, and then make joint ring descending, now the pressure transmission hole in joint ring and center is communicated with, and in well, liquid enters in oil pipe by pressure transmission hole.When the liquid in oil pipe enters into after certain altitude, fluid pressure balance in oil pipe and sleeve pipe, it is descending that the weight compression lock tube sealing of sucker rod discharges cover assembly, Compress Spring forces stop collar descending, make the projection of stop collar get out of the way catching projection, claw is got out of a predicament or an embarrassing situation and is separated with seating nipple, opens oil flow channel in oil pipe, realizes the normal work of oil well pump.Above-mentioned sealing discharges cover assembly has increased pressure transmission release function on the basis of original function, has saved cementing truck to water filling in oil pipe and has suppressed operation, has saved cementing truck machine-team and engineering time, has reduced cost of production.
Brief description of the drawings
Fig. 1 is example structure schematic diagram of the present utility model;
This practical new structure schematic diagram of Fig. 2.
1-center-pole in figure, 2-fastener, 3-spring A, 4-stop collar, 5-spring B, 6-sealing discharges cover assembly, 7-seating nipple, 8-docks pawl, 9-center, 10-pressure transmission hole, 11-joint ring, 12-connects pin, 13-inner bushing ring, 14-jump ring, 15-elongated hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figures 1 and 2, this blowout-prevention connecting-tripping device sealing relieving mechanism is on the basis of existing blowout-prevention connecting-tripping device structure, the improvement that sealing shroud in blowout-prevention connecting-tripping device has been carried out, comprise that the sealing being placed in seating nipple 7 discharges cover assembly, sealing discharges cover assembly and comprises center 9, on described center 9 lower sides, be circumferentially distributed with pressure transmission hole 10, center 9 middle part sidewalls are provided with connecting hole 15, center, 9 outer wall suit joint ring 11, joint ring 11 upper and lower sides are equipped with hole, and wherein the hole of upper end is also connecting hole, and the hole of lower end is pressure transmission hole; The upper surface of center 9 and inwall are equipped with inner bushing ring 13, and the bottom of inner bushing ring 13 is also provided with connecting hole, and are equipped with elastic circlip 14 between the upper surface of center 9 and inner bushing ring 13; And the connecting hole of elongated hole 15 in connecting hole, the center 9 on above-mentioned joint ring 11 tops and inner bushing ring 13 bottoms is relatively fixing by connecting pin 12.
Connecting hole between described above-mentioned center 9 and inner bushing ring 13 and joint ring 11 is axial elongated hole, makes inner bushing ring 13 and joint ring 11 produce and move axially with respect to center 9, as shown in Figure 2.
When blowout-prevention connecting-tripping device is connected with oil well pump and oil pipe lower going-into-well lower time, be lowered to sucker rod and dock pawl and contact in advance the degree of depth, slowly transfer, because discharging cover assembly 6, docking pawl 8 and sealing have the flexible surplus of 0.5mm, promote lower compression elastic circlip 14 at the gravity of sucker rod and make neck bush 13 descending, by connecting pin 12, band rotary packing ring 11 is descending, now the pressure transmission hole 10 in joint ring 11 and center 9 is communicated with, and in well, liquid enters in oil pipe by pressure transmission hole 10.When the liquid in oil pipe enters into after certain altitude, fluid pressure balance in oil pipe and sleeve pipe, it is descending that the weight compression seal of sucker rod discharges cover assembly, Compress Spring B5 and spring A3 force stop collar 4 descending, make the projection of stop collar 4 get out of the way the claw on fastener 2, claw on fastener 2 is got out of a predicament or an embarrassing situation and is separated with seating nipple, opens oil flow channel in oil pipe, realizes oil well pump and normally works.Thus, sealing discharges cover assembly has saved cementing truck to water filling in oil pipe and has suppressed operation the release of seating nipple, has saved cementing truck machine-team and engineering time, thereby has reduced production costs.
Claims (2)
1. a blowout-prevention connecting-tripping device sealing relieving mechanism, comprise that the sealing being placed in seating nipple discharges cover assembly, it is characterized in that: sealing discharges cover assembly and comprises center (9), on described center (9) lower sides with pressure transmission hole (10), the upper and lower joint ring (11) with holes of center (9) outer wall suit, the upper surface of center (9) and inwall are equipped with inner bushing ring (13); And the bottom of the top of above-mentioned joint ring (11), center (9) and inner bushing ring (13) is relatively fixing by connecting pin (12).
2. blowout-prevention connecting-tripping device sealing relieving mechanism according to claim 1, is characterized in that: the connecting hole between above-mentioned center (9) and inner bushing ring (13) and joint ring (11) is axial long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105210.2U CN203729904U (en) | 2014-03-10 | 2014-03-10 | Sealing release mechanism for blowout control connecting-tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105210.2U CN203729904U (en) | 2014-03-10 | 2014-03-10 | Sealing release mechanism for blowout control connecting-tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729904U true CN203729904U (en) | 2014-07-23 |
Family
ID=51199984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105210.2U Expired - Fee Related CN203729904U (en) | 2014-03-10 | 2014-03-10 | Sealing release mechanism for blowout control connecting-tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729904U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703759A (en) * | 2015-11-18 | 2017-05-24 | 克拉玛依胜利高原机械有限公司 | Device and method of snubbing oil pumping operation overhaul sealing oil flow |
| CN116927675A (en) * | 2023-09-18 | 2023-10-24 | 牡丹江市井田石油钻采配件有限公司 | Blowout prevention connector with pressure release mechanism for oil pump |
-
2014
- 2014-03-10 CN CN201420105210.2U patent/CN203729904U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703759A (en) * | 2015-11-18 | 2017-05-24 | 克拉玛依胜利高原机械有限公司 | Device and method of snubbing oil pumping operation overhaul sealing oil flow |
| CN116927675A (en) * | 2023-09-18 | 2023-10-24 | 牡丹江市井田石油钻采配件有限公司 | Blowout prevention connector with pressure release mechanism for oil pump |
| CN116927675B (en) * | 2023-09-18 | 2023-12-08 | 牡丹江市井田石油钻采配件有限公司 | Blowout prevention connector with pressure release mechanism for oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20200310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |