CN106838534A - A kind of reusable end sealing device - Google Patents
A kind of reusable end sealing device Download PDFInfo
- Publication number
- CN106838534A CN106838534A CN201710159584.0A CN201710159584A CN106838534A CN 106838534 A CN106838534 A CN 106838534A CN 201710159584 A CN201710159584 A CN 201710159584A CN 106838534 A CN106838534 A CN 106838534A
- Authority
- CN
- China
- Prior art keywords
- ferrule
- sealing device
- cutting ferrule
- screw thread
- external screw
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/105—Closing devices introduced radially into the pipe or hose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
Abstract
The invention 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 bellmouth matches with the male cone (strobilus masculinus) of the taper cutting ferrule；The taper cutting ferrule is provided with the through hole matched with pipe end external diameter, when full body fatigue test is carried out, directly cooperated end sealing by taper cutting ferrule, outer cone bell and spigot joint, ferrule-type compression joint and nut, the techniques such as plug, welding plug need not be processed, technological process is so not only shortened, and can repeatedly be dismantled and used.
Description
Technical field:
The invention 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 all classes of oil-gas exploration, 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 the method is needed according to the caliber wall thickness a series of plug of 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 normally to proceed, and causes experiment invalid.
The content of the invention：
It is an object of the invention to provide a kind of reusable end sealing device, end sealing is can be directly used for,
The technological processes such as processing plug, welding are not only eliminated, and end sealing operation is more convenient.
The technical solution adopted by the present invention is：A kind of reusable end sealing device, the end sealing device bag
Include 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, cavity
Outer wall be machined with external screw thread one, the other end of ferrule-type compression joint is drilled with the elongated hole for water filling or exhaust along center line, long
Hole communicates 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；The external conical sleeve
One end of joint is provided with the screwed hole matched with external screw thread one, and the other end is provided with bellmouth, the bellmouth and the taper
The male cone (strobilus masculinus) of 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 are provided with groove, and sealing ring is provided with the groove.
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.
Beneficial effects of the present invention：
1st, when full body fatigue test is carried out, end sealing device of the invention directly passes through taper cutting ferrule, external conical 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 managed
End sealing, so not only shortens technological process, and can repeatedly dismantle and use.
2nd, sealing device of the invention is provided with groove in the bottom of cavity and/or inwall, and sealing ring is added in groove, carries out double
Resealing, further increases sealing.
3rd, sealing device of the invention, can be applied to other tubing technical fields, have a wide range of application.
Brief description of the drawings:
The present invention is described in further detail with reference to specific embodiment.
Fig. 1 is the sectional view of ferrule-type compression joint of the present invention；
Fig. 2 is the sectional view of outer cone bell and spigot joint of the present invention；
Fig. 3 is the sectional view of taper cutting ferrule of the present invention；
Fig. 4 is the right view of taper cutting ferrule of the present invention；
Fig. 5 is the front view of nut of the present invention；
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.
Specific embodiment:
The present invention by taking the coiled tubing of 38.1 × 3.4mm of Φ as an example, the sealing device bag for sealing the continuous pipe pipe end
Taper cutting ferrule, outer cone bell and spigot joint, ferrule-type compression joint and nut are included, 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 gap long 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
It is 3 ° to spend, and 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 the groove of 2mm, 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.
The step of using sealing device of the invention to seal the pipe end with the coiled tubing of 38.1 × 3.4mm of Φ
For：
(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
Degree 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 screwed holes 5 for screwing in outer cone bell and spigot joints, in making the pipe end of continuous pipe stretch into cavity 1；
(5) sealing device of the invention needs respectively to install a set of at the two ends of continuous pipe, and one end passes through elongated hole 3 and water inlet pipe
Road connects, and after continuous liquid in pipe is full of, the square nut of external screw thread 24 and six of the outer wall that other end passes through elongated hole 3 coordinates
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 invention 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) matches with the male cone (strobilus masculinus) (7) of the taper cutting ferrule；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 are provided with groove, and sealing ring is provided with the groove.
3. reusable end sealing device according to claim 1 and 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 and 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 |
|---|---|---|---|
| CN201710159584.0A CN106838534B (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 |
|---|---|---|---|
| CN201710159584.0A CN106838534B (en) | 2017-03-17 | 2017-03-17 | A kind of reusable end sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106838534A true CN106838534A (en) | 2017-06-13 |
| CN106838534B CN106838534B (en) | 2019-12-03 |
Family
ID=59144897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710159584.0A Active CN106838534B (en) | 2017-03-17 | 2017-03-17 | A kind of reusable end sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838534B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519648A (en) * | 2018-12-20 | 2019-03-26 | 北京宇航系统工程研究所 | A kind of rocket low temperature control gas circuit waterproof end plug |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2551834A (en) * | 1947-06-09 | 1951-05-08 | Presstite Engineering Company | Protective plastic cap |
| JPH05196192A (en) * | 1991-11-01 | 1993-08-06 | Nippondenso Co Ltd | Plug |
| CN202176872U (en) * | 2011-06-23 | 2012-03-28 | 永高股份有限公司 | Clamping water-feeding plug |
| CN105135146A (en) * | 2015-10-13 | 2015-12-09 | 天津博益气动股份有限公司 | Pipe opening plugging device |
| CN206592700U (en) * | 2017-03-17 | 2017-10-27 | 中国石油天然气集团公司 | A kind of reusable end sealing device |
-
2017
- 2017-03-17 CN CN201710159584.0A patent/CN106838534B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2551834A (en) * | 1947-06-09 | 1951-05-08 | Presstite Engineering Company | Protective plastic cap |
| JPH05196192A (en) * | 1991-11-01 | 1993-08-06 | Nippondenso Co Ltd | Plug |
| CN202176872U (en) * | 2011-06-23 | 2012-03-28 | 永高股份有限公司 | Clamping water-feeding plug |
| CN105135146A (en) * | 2015-10-13 | 2015-12-09 | 天津博益气动股份有限公司 | Pipe opening plugging device |
| CN206592700U (en) * | 2017-03-17 | 2017-10-27 | 中国石油天然气集团公司 | A kind of reusable end sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519648A (en) * | 2018-12-20 | 2019-03-26 | 北京宇航系统工程研究所 | A kind of rocket low temperature control gas circuit waterproof end plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106838534B (en) | 2019-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7784838B2 (en) | High pressure energizable tube connector for a well | |
| US4669761A (en) | Tubing fitting | |
| JP2009052572A (en) | Resin pipe coupling and its manufacturing method | |
| US11493156B2 (en) | Hammerless and torqueless union connection | |
| CN106090475A (en) | A kind of ferrule-type compression joint | |
| CN206592700U (en) | A kind of reusable end sealing device | |
| CN106838534A (en) | A kind of reusable end sealing device | |
| US5908044A (en) | Quadra-seal method and apparatus for operations upon fluid pressure containment bodies | |
| CN210531847U (en) | Pipe crimping tool for pipeline | |
| CN205607757U (en) | Exhaust -heat boiler hydrostatic test fastening | |
| CN205991254U (en) | A kind of ferrule-type compression joint | |
| CN203879441U (en) | Jackscrew assembly structure for well head device | |
| CN205786079U (en) | A kind of small-caliber steel pipe hydraulic pressure detection plugging device | |
| CN210598944U (en) | Soluble metal fracturing ball testing device | |
| CN205370461U (en) | Device for connecting be used for preventer pressure testing instrument | |
| CN209510284U (en) | A kind of measurable well head connection sealer of pressure | |
| US4617823A (en) | Hydro pressure thread tester | |
| JPH08247351A (en) | Threaded joint for oil well pipe | |
| CN201265370Y (en) | Gas-tight drill rod connector | |
| US20050067167A1 (en) | Radial penetrator assembly and method | |
| CN107063879A (en) | Tubing is pressure-resistant explosion bulge test instrument | |
| DE3824777A1 (en) | Positively locking, weld-free, solder-free and beading-free O-ring/shafted sealing cone pipe connection | |
| CN207975653U (en) | A kind of energy saving injection pipe of combustion gas | |
| CN206208666U (en) | A kind of pipeline pressure device | |
| CN210858648U (en) | Plugging device for oil well cementation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |