CN206592700U - A kind of reusable end sealing device - Google Patents
A kind of reusable end sealing device Download PDFInfo
- Publication number
- CN206592700U CN206592700U CN201720261171.9U CN201720261171U CN206592700U CN 206592700 U CN206592700 U CN 206592700U CN 201720261171 U CN201720261171 U CN 201720261171U CN 206592700 U CN206592700 U CN 206592700U
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- ferrule
- cutting ferrule
- screw thread
- external screw
- sealing device
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Abstract
The utility model discloses a kind of reusable end sealing device, including taper cutting ferrule, outer cone bell and spigot joint, ferrule-type compression joint and nut；One end of the ferrule-type compression joint is provided with cavity, the outer wall of cavity is machined with external screw thread one, and the other end of ferrule-type compression joint is drilled with the elongated hole for water filling or exhaust along center line, and elongated hole is communicated with cavity, the outer wall of the elongated hole is machined with external screw thread two, and external screw thread two matches with the nut；One end of the outer cone bell and spigot joint is provided with the screwed hole matched with external screw thread one, and the other end is provided with bellmouth, and the male cone (strobilus masculinus) of the bellmouth and the taper cutting ferrule matches；The taper cutting ferrule is provided with the through hole matched with pipe end external diameter, when carrying out full body fatigue test, directly cooperated by taper cutting ferrule, outer cone bell and spigot joint, ferrule-type compression joint and nut by end sealing, the techniques such as plug, welding plug need not be processed, technological process is so not only shortened, and can repeatedly dismantle and use.
Description
Technical field:
The utility model belongs to end sealing technical field, and in particular to a kind of reusable end sealing device.
Background technology：
Continuous pipe (Coiled Tubing, CT) is a kind of Novel oil gas well operations tubing, the instrument that can carry carry out well workover,
The several work in the fields such as well logging, drilling well, completion, its homework type covers oil-gas exploration, all classes of development field substantially
Type, caliber is usually 1in. (25.4mm) -3.5in. (88.9mm).
When continuous pipe carries out full body fatigue test, it is necessary to apply bending load under internal pressure conditions to continuous pipe, lead to
Mode frequently with welding plug carries out end sealing, and this method is needed according to a series of plug of caliber wall thickness processing, and
Plug is welded to pipe end before experiment, technics comparing is cumbersome, if welding quality is not good, also results in and is let out in experimentation
Pressure, makes experiment not proceed normally, causes experiment invalid.
Utility model content：
The purpose of this utility model is a kind of reusable end sealing device of offer, can be directly used for pipe end close
Envelope, not only eliminates the technological processes such as processing plug, welding, and end sealing operation is more convenient.
The technical solution adopted in the utility model is：A kind of reusable end sealing device, end sealing dress
Put including taper cutting ferrule, outer cone bell and spigot joint, ferrule-type compression joint and nut；One end of the ferrule-type compression joint is provided with cavity,
The outer wall of cavity is machined with external screw thread one, and the other end of ferrule-type compression joint is drilled with the length for water filling or exhaust along center line
Hole, elongated hole is communicated with cavity, and the outer wall of the elongated hole is machined with external screw thread two, and external screw thread two matches with the nut；It is described
One end of outer cone bell and spigot joint is provided with the screwed hole matched with external screw thread one, and the other end is provided with bellmouth, the bellmouth and institute
The male cone (strobilus masculinus) for stating taper cutting ferrule matches；The taper cutting ferrule is provided with the through hole matched with pipe end external diameter.
The bottom of above-mentioned cavity and/or inwall, which are provided with groove, the groove, is provided with sealing ring.
The male cone (strobilus masculinus) of above-mentioned taper cutting ferrule is provided with the slit of one end open, the slit at least two, by taper cutting ferrule
Male cone (strobilus masculinus) be uniformly divided at least two valves.
The inwall of above-mentioned through hole is machined with projection.
It is above-mentioned raised for zigzag.
The beneficial effects of the utility model：
1st, when carrying out full body fatigue test, end sealing device of the present utility model is directly by taper cutting ferrule, outer
Tapered sleeve joint, ferrule-type compression joint and nut cooperate end sealing, it is not necessary to process the techniques such as plug, welding plug and enter
Row end sealing, so not only shortens technological process, and can repeatedly dismantle and use.
2nd, sealing device of the present utility model is provided with groove in the bottom of cavity and/or inwall, and sealing ring is added in groove, enters
Row dual-seal, further increases sealing.
3rd, sealing device of the present utility model, can be applied to other tubing technical fields, has a wide range of application.
Brief description of the drawings:
The utility model is described in further detail with reference to embodiment.
Fig. 1 is the sectional view of the utility model ferrule-type compression joint；
Fig. 2 is the sectional view of the utility model outer cone bell and spigot joint；
Fig. 3 is the sectional view of the utility model taper cutting ferrule；
Fig. 4 is the right view of the utility model taper cutting ferrule；
Fig. 5 is the front view of the utility model nut；
Description of reference numerals：1 cavity, 2 external screw threads one, 3 elongated holes, 4 external screw threads two, 5 screwed holes, 6 bellmouths, 7 male cone (strobilus masculinus)s,
8 through holes, 9 slits.
Embodiment:
The utility model is by taking 38.1 × 3.4mm of Φ coiled tubing as an example, and the sealing for sealing the continuous pipe pipe end is filled
Put including taper cutting ferrule, outer cone bell and spigot joint, ferrule-type compression joint and nut, its specific size is as follows：
Taper cutting ferrule：The internal diameter of through hole 8 is 38.3mm, and length is 40mm；The taper of male cone (strobilus masculinus) 7 is 3 °, the osculum of male cone (strobilus masculinus) 7
External diameter is 41.2mm, and big mouth external diameter is 45.44mm；The outer wall of taper cutting ferrule is provided with the slit 9 of one end open, and long gap is
1.6mm, depth is 35mm, totally four slits 9, and outer wall is divided into 4 valves.
Outer cone bell and spigot joint：The osculum a diameter of 41.29 of bellmouth 6, the big a diameter of 44.96mm of mouth, the conical surface cone of bellmouth 6
Spend for 3 °, conical surface length is 35mm；A diameter of M52X2 of screwed hole 5, length is 35mm.
Ferrule-type compression joint：The depth of cavity 1 is 25mm, a diameter of 38.25mm, is respectively added in the inwall of cavity 1 and bottom
Work depth is 2mm groove, and sealing ring is added in groove, carries out dual-seal；A diameter of M52X2 of the external screw thread 1 of chamber outer wall.
Nut uses six square nuts.
Sealing device of the present utility model is used sealedly to walk the pipe end with 38.1 × 3.4mm of Φ coiled tubing
Suddenly it is：
(1) by continuous pipe two ends tack；
(2) external conical sleeve joint is set to the pipe end of continuous pipe, depth is inserted in more than the length of taper cutting ferrule and the depth of cavity 1
Spend sum；
(3) taper cutting ferrule is installed to the pipe end of continuous pipe, it is ensured that the conical surface of male cone (strobilus masculinus) 7 and outer cone bell and spigot joint bellmouth 6
It is parallel；
(4) sealing ring is put into the groove of the bottom of ferrule-type compression joint cavity 1 and inwall, then the external screw thread of cavity 1
One 2 screw in the screwed hole 5 of outer cone bell and spigot joint, the pipe end of continuous pipe is stretched into cavity 1；
(5) sealing device of the present utility model needs respectively to install a set of at the two ends of continuous pipe, and one end is by elongated hole 3 with entering
Water lines are connected, after continuous liquid in pipe is full of, the square nut of external screw thread 24 and six that other end passes through the outer wall of elongated hole 3
Cooperation is shut；
(6) start to be filled to target hydraulic pressure and tested, experiment maximum pressure is 70MPa.Dismantle 10 times repeatedly, pressure does not have
Change.
Sealing device of the present utility model is not limited to continuous pipe also available to other technologies field.
Claims (5)
1. a kind of reusable end sealing device, it is characterised in that：The end sealing device includes taper cutting ferrule, outer
Tapered sleeve joint, ferrule-type compression joint and nut；One end of the ferrule-type compression joint is provided with cavity (1), and the outer wall of cavity (1) adds
Work has an external screw thread one (2), and the other end of ferrule-type compression joint is drilled with the elongated hole (3) for water filling or exhaust, elongated hole along center line
(3) communicated with cavity (1), the outer wall of the elongated hole (3) is machined with external screw thread two (4), external screw thread two (4) and the nut phase
Match somebody with somebody；One end of the outer cone bell and spigot joint is provided with the screwed hole (5) matched with external screw thread one (2), and the other end is provided with bellmouth
(6), the bellmouth (6) and the male cone (strobilus masculinus) (7) of the taper cutting ferrule match；The taper cutting ferrule is provided with and pipe end external diameter phase
The through hole (8) of matching.
2. reusable end sealing device according to claim 1, it is characterised in that：The bottom of the cavity (1)
Portion and/or inwall, which are provided with groove, the groove, is provided with sealing ring.
3. reusable end sealing device according to claim 1 or 2, it is characterised in that：The taper cutting ferrule
Male cone (strobilus masculinus) (7) be provided with the slit (9) of one end open, the slit (9) at least two, by the male cone (strobilus masculinus) (7) of taper cutting ferrule
Uniformly it is divided at least two valves.
4. reusable end sealing device according to claim 1 or 2, it is characterised in that：The through hole (8)
Inwall is machined with projection.
5. reusable end sealing device according to claim 4, it is characterised in that：It is described raised for sawtooth
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720261171.9U CN206592700U (en) | 2017-03-17 | 2017-03-17 | A kind of reusable end sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720261171.9U CN206592700U (en) | 2017-03-17 | 2017-03-17 | A kind of reusable end sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592700U true CN206592700U (en) | 2017-10-27 |
Family
ID=60125108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720261171.9U Active CN206592700U (en) | 2017-03-17 | 2017-03-17 | A kind of reusable end sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838534A (en) * | 2017-03-17 | 2017-06-13 | 中国石油天然气集团公司 | A kind of reusable end sealing device |
-
2017
- 2017-03-17 CN CN201720261171.9U patent/CN206592700U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838534A (en) * | 2017-03-17 | 2017-06-13 | 中国石油天然气集团公司 | A kind of reusable end sealing device |
| CN106838534B (en) * | 2017-03-17 | 2019-12-03 | 中国石油天然气集团公司 | A kind of reusable end sealing device |
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