CN203808915U - Plugging device for oil pipe hanger - Google Patents
Plugging device for oil pipe hanger Download PDFInfo
- Publication number
- CN203808915U CN203808915U CN201420058387.1U CN201420058387U CN203808915U CN 203808915 U CN203808915 U CN 203808915U CN 201420058387 U CN201420058387 U CN 201420058387U CN 203808915 U CN203808915 U CN 203808915U
- Authority
- CN
- China
- Prior art keywords
- ball
- valve
- boll
- plugging device
- hole
- 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
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a plugging device for an oil pipe hanger. The plugging device comprises a ball valve mechanism and a main body, wherein the upper end of the main body is connected with the lower end of the ball valve mechanism, the interior of the main body communicates with that of the ball valve mechanism; a ball sealer, a ball seat, a spring and a spring seat are arranged in the main body; the lower part of the main body wall is provided with a ball seat shoulder and a bypass port; one end of the spring is abutted against the spring seat while the other end is abutted against the ball seat for permitting the ball seat to reach the ball seat shoulder; the ball seat seals the bypass port and is hermetically contacted with the main body; the ball sealer is positioned at the upper end of the inner hole of the ball seat; the spring seat is fixedly connected with the main body, and the middle part of the spring seat is provided with a through hole. The plugging device for the oil pipe hanger is capable of releasing pressure after sealing the oil pipe hanger, draining while circularly flushing a well, and performing pressure test on a blowout preventer.
Description
Technical field
The utility model relates to the device that in controlled snubbing serving technological processes, boll-weevil hanger is carried out to shutoff, relates in particular to a kind of boll-weevil hanger plugging device.
Background technology
Along with oil field development is to the middle and later periods, oil reservoirs pressure is more and more lower, and low pressure well is more and more.For low pressure well, need to inject well killing fluid to carry out kill-job when operation at present, improve oil reservoirs pressure, missing serious well also needs to take repeatedly kill-job mode to improve oil reservoirs pressure.But after injecting well killing fluid meeting polluted reservoir and increasing operation, pump drainage period, increase stratum water and increase effluent cycle disposal cost, recover production capacity to oil well after operation and brought difficulty, so need to take controlled snubbing serving technology to low pressure oil well.
Controlled snubbing serving technology refers at old filed by exploitation for many years, grasp completely on its geologic rule basis, utilize controlled actuating oil-pumping unit device, controlled lower oil tube device and down-hole string capping tools, under high pressure conditions, complete the underground work technology of oil-water well upkeep operation.Controlled snubbing serving technology is owing to not needing well killing fluid can avoid kill-job and the well killing fluid that pours into is missed the oil layer pollution causing, and can also shorten the oil well restore cycle, improves oil well output.
In controlled snubbing serving technology, connected pipes hanger on oil pipe, installs preventer on boll-weevil hanger.Described preventer is to cut out well head for the operation process such as well workover, completion, prevents that gas blowout accident from occurring.In controlled snubbing serving technology, need to preventer could be installed to after boll-weevil hanger shutoff.But, if shutoff is too of a specified duration in well, causes and build the pressure, directly open security incident easily occurs after boll-weevil hanger.After shutoff boll-weevil hanger, in well, the in the situation that of kill-job, need to carry out anti-circulation well cleanup, anti-circulation well cleanup requires from sleeve pipe to sleeve pipe and oil pipe annulus water injection discharged the water injecting by oil pipe, and this just requires boll-weevil hanger in the time carrying out anti-circulation well cleanup must be that open mode is discharging water in time.And, installing after preventer, also need preventer to carry out pressure testing.But, not having at present a kind of device and can bleed off pressure after shutoff boll-weevil hanger, draining again can circulation well cleanup time, can also carry out pressure testing to preventer.
Therefore, need after a kind of shutoff boll-weevil hanger to bleed off pressure, again can draining in the time of circulation well cleanup, the device that can also carry out to preventer pressure testing.
Utility model content
The utility model provides a kind of boll-weevil hanger plugging device, can bleed off pressure after shutoff boll-weevil hanger, again can draining in the time of circulation well cleanup, and can also carry out pressure testing to preventer.
In view of above-mentioned purpose, the utility model provides a kind of boll-weevil hanger plugging device, comprises ball valve mechanism; Main body, its upper end is connected with described ball valve mechanism lower end, and its inside communicates with ball valve mechanism inside; Described body interior is provided with ball sealer, ball seat, spring, spring base, and the main wall bottom of described main body is provided with ball seat shoulder, by-pass prot; Described spring one end is resisted against spring base, and other end contact ball seat stops to ball seat shoulder; Described ball seat seals described by-pass prot and contact with body seal; Described ball sealer is seated at ball seat endoporus upper end; Described spring base is fixedly connected with main body, and described spring base middle part is provided with through hole.
By above technical scheme, can find out boll-weevil hanger plugging device provided by the utility model by using ball valve mechanism and ball sealer, spring, ball seat is isostructural interosculates, reach after shutoff boll-weevil hanger and can bleed off pressure, again can draining in the time of circulation well cleanup, the object that can also carry out to preventer pressure testing.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of boll-weevil hanger plugging device of the utility model structural representation;
Fig. 2 is a kind of boll-weevil hanger plugging device of the utility model ball valve mechanism body cavity schematic diagram.
Detailed description of the invention
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiment.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, should belong to the scope that the utility model is protected.
Below in conjunction with Figure of description, the utility model is described in detail.
Described upper or upper/lower positions is herein use state after being connected with boll-weevil hanger for boll-weevil hanger plugging device provided by the utility model.Exactly, the residing position of ball valve mechanism is upper, under the residing position of main body is.
Fig. 1 is a kind of boll-weevil hanger plugging device structural representation provided by the utility model.As shown in Figure 1, boll-weevil hanger plugging device provided by the utility model comprises:
Ball valve mechanism 1;
Main body 2, its upper end is connected with described ball valve mechanism 1 lower end, and its inside communicates with ball valve mechanism inside; Described body interior is provided with ball sealer 3, ball seat 4, spring 5, spring base 6; The main wall bottom of described main body is provided with ball seat shoulder 7, by-pass prot 8; Described spring 5 one end are resisted against spring base 6, and other end contact ball seat 4 stops to ball seat shoulder 7; Described ball seat 4 seals described by-pass prot 8 and seal and contact with main body 2; Described ball sealer 3 is seated at ball seat 4 endoporus upper ends; Described spring base 6 is fixedly connected with main body 2, and described spring base 6 middle parts are provided with through hole 61.
In a specific embodiment, described ball valve mechanism 1 comprises ball valve body 11, valve ball 12, valve rod 13, gasket seal 14, top cap 19, sealing ring 20; Cap 19 middle parts, described top are provided with open-work 191; Described ball valve body 11 middle parts are provided with the notch cuttype through hole that internal diameter dwindles successively from top to bottom, and described notch cuttype through hole comprises epimere 101, stage casing 102, hypomere 103.Described top cap 19 is positioned at described notch cuttype through hole stage casing 102, and described top cap 19 external diameters equate with described notch cuttype through hole stage casing 102 internal diameters, and, between described top cap 19 and described notch cuttype through hole stage casing 102, be provided with upper and lower 2 sealing rings 20.Valve body groove 16 is between described top cap open-work 191 and notch cuttype through hole hypomere 103, and valve body groove 16 forms body cavity 15 with top cap open-work 191, notch cuttype through hole hypomere 103; Described valve body groove 16 is diameter of Spherical Volume, and its internal diameter is body cavity 15 maximum inner diameters.Described valve ball 12 is positioned at valve body groove 16 and is provided with a through hole 17 to be communicated with top cap open-work 191 and the notch cuttype through hole hypomere 103 of valve body groove 16 both sides; Described gasket seal 14 by between described valve ball 12 tops and valve body groove 16 upper surfaces, the 16 lower surfaces sealings of valve ball 12 bottoms and valve body groove; On described ball valve body 11 walls, offer valve rod groove 18, described valve rod groove 18 communicates with valve body groove 16; Described valve rod 13 is located in valve rod groove 18 and is fixedly connected with valve ball 12, and the outer face 131 of described valve rod 13 is provided with interior hexagonal groove, and described valve rod 13 contacts with valve rod groove 18 sealings.
Further, described sealing ring 20 is no less than 2.
In a feasible embodiment, described ball valve mechanism 1 lower end is provided with external screw thread, and described main body 2 tops are provided with box cupling 21, and described box cupling 21 is provided with internal thread, and described ball valve mechanism 1 lower end is threaded with described box cupling 21.
Further, the through hole 61 of described spring base 6 is specially interior hexagonal through hole, and is connected with main body 2 by screw thread.
Further, described by-pass prot 8 is at least one.
Specific embodiment below in conjunction with a kind of boll-weevil hanger plugging device of the utility model describes the utility model in detail.
As shown in Figure 1, the specific embodiment of a kind of boll-weevil hanger plugging device of the utility model comprises: ball valve mechanism 1, main body 2, ball sealer 3, ball seat 4, spring 5, spring base 6; Wherein, described ball sealer 3, ball seat 4, spring 5, spring base 6 are positioned at main body 2 lower interior portion.
Described ball valve mechanism 1 comprises ball valve body 11, valve ball 12, valve rod 13, gasket seal 14, top cap 19, sealing ring 20; Cap 19 middle parts, described top are provided with open-work 191.Fig. 2 shows the present embodiment ball valve mechanism body cavity schematic diagram.As shown in Figure 2, described ball valve body 11 middle parts are provided with the notch cuttype through hole that internal diameter dwindles successively from top to bottom, and described notch cuttype through hole comprises epimere 101, stage casing 102, hypomere 103.Described top cap 19 is positioned at described notch cuttype through hole stage casing 102, and described top cap 19 external diameters equate with described notch cuttype through hole stage casing 102 internal diameters, and, between described top cap 19 and described notch cuttype through hole stage casing 102, be provided with upper and lower 2 sealing rings 20.Valve body groove 16 is between described top cap open-work 191 and notch cuttype through hole hypomere 103, and valve body groove 16 forms body cavity 15 with top cap open-work 191, notch cuttype through hole hypomere 103; Described valve body groove 16 is cylindrical space, and its internal diameter is body cavity 15 maximum inner diameters.Described valve ball 12 is positioned at valve body groove 16 and is provided with through hole 17 to be communicated with top cap open-work 191 and the notch cuttype through hole hypomere 103 of valve body groove 16 both sides.As shown in Figure 1, through hole 17 outsides, two ends of described valve ball 12 are tightly connected with ball valve body 11 by described gasket seal 14.Specifically, described gasket seal 14 is made up of upper and lower two sub-gasket seals, upper subgasket sheet is between top cap 19 and valve ball 12 tops, lower subgasket sheet between valve ball 12 bottoms and ball valve body 11, described gasket seal 14 by between described valve ball 12 tops and valve body groove 16 upper surfaces, the 16 lower surfaces sealings of valve ball 12 bottoms and valve body groove.On described ball valve body 11 walls, offer valve rod groove 18, described valve rod groove 18 communicates with valve body groove 16; Described valve rod 13 is located in valve rod groove 18 and is fixedly connected with valve ball 12, and the outer face 131 of described valve rod 13 is provided with interior hexagonal groove 132.Extend into interior hexagonal groove 132 by inner hexagon spanner, rotate described valve rod 13 by rotating inner hexagon spanner, and then drive the rotation of valve ball 12 to realize the opening function of closing of ball valve mechanism 1 by the rotation of valve rod 13.As shown in fig. 1, now through hole 17 and top cap open-work 191, notch cuttype through hole hypomere 103 is coaxial and communicate; When valve rod rotates after 90 degree, the axis of through hole 17 is vertical with the axis of top cap open-work 191, notch cuttype through hole hypomere 103, and top cap open-work 191 is obstructed with notch cuttype through hole hypomere 103.Described valve rod 13, is specifically tightly connected by sealing ring realization is set between valve rod 13 and valve rod groove 18 for sealing contacts with valve rod groove 18.
Described ball valve body 11 lower ends are provided with external screw thread, and main body 2 upper ends are provided with box cupling 21, and described box cupling is provided with internal thread, and then described ball valve mechanism 1 lower end is threaded with described box cupling 21.Described main body 2 is tubular type structure, and the bottom of its main wall is provided with ball seat shoulder 7, by-pass prot 8; Described ball seat shoulder 7 is positioned at main body 2 inside; Described by-pass prot 8 is at least one, and is distributed in the same plane perpendicular to main body 2 axis.
Described spring 5 one end are resisted against spring base 6, and other end contact ball seat 4 stops to ball seat shoulder 7; Described ball seat shoulder 7 is by spacing described ball seat 4.At ball seat shoulder 7, when spacing described ball seat 4, described ball seat 4 seals described by-pass prot 8.Endoporus is offered at described ball seat 4 middle parts, and, between ball seat 4 and main body 2, for sealing contacts, specifically by being set between ball seat 4 and main body 2, sealing ring realization is tightly connected.Described ball sealer 3 is seated at ball seat 4 endoporus upper ends and ball seat 4 endoporus is sealed; Described spring base 6 is fixedly connected with main body 2, and described spring base 6 middle parts are provided with through hole 61.Described through hole 61 is specially interior hexagonal through hole with installation for convenience detach, and described spring base 6 is fixedly connected with main body 2 by screw thread.
Because ball valve mechanism has multiple different structure, and be the known a kind of structure of the public, listed above go out the structure composition of ball valve mechanism be only wherein a kind of, as long as can control the valve ball mechanism that closes opening function and all can apply in the present embodiment by rotating inner valve ball.
In the time that controlled snubbing serving Technology Need is installed preventer, first by die nut rotation valve rod 13 to close ball valve mechanism 1, then the boll-weevil hanger plugging device that the present embodiment is provided is threaded with boll-weevil hanger by lower end.Now, boll-weevil hanger is carried out shutoff by the present embodiment, and preventer is now installed.
Install after preventer, need to carry out pressure testing to preventer time, preventer is inner to communicate with the present embodiment through hole 61.Now, first rotate 90 by die nut rotation valve rod 13 and spend to open ball valve mechanism 1, then in from ball valve mechanism 1 upper end to the present embodiment, filling liquid is suppressed, suppressing in process, ball sealer 3 withstands on ball seat 4, along with the continuous increase of pressure, ball sealer 3 moves downward together with ball seat 4, along with moving down of ball seat 4, by-pass prot 8 is exposed, ball seat 4 no longer seals by-pass prot 8, and then the liquid of suppressing flows in preventer by by-pass prot 8, continues to suppress filling liquid until reach preventer rated pressure and has realized the work pressure test to preventer.
In well, have and press or other emergency case, need to be in well when anti-circulation well cleanup, first connect water outlet pipeline by the present embodiment ball valve mechanism 1, open ball valve mechanism 1, from sleeve pipe to oil pipe and water filling in casing annulus, institute's injected water is from the interior inflow the present embodiment of through hole 61 main body 2 bottoms of spring base 6, along with increasing of injected water, the water jack-up ball sealer 3 injecting, and then the present embodiment inside, described ball valve mechanism 1 is open mode, so injected water can enter into water outlet pipeline by main body 2, ball valve mechanism 1 successively, and then completes anti-circulation well cleanup.
After long-time shutoff, if form and build the pressure in well, now can rotate 90 by die nut rotation valve rod 13 and spend to open ball valve mechanism 1 and bleed off pressure.
Removing when preventer, also need by die nut rotation valve rod 13 rotate 90 spend to open ball valve mechanism 1 and bleed off pressure after, then remove, can improve safety work index.
By above description, can find out boll-weevil hanger plugging device that the present embodiment provides by using ball valve mechanism and ball sealer, spring, ball seat is isostructural interosculates, reach after shutoff boll-weevil hanger and can bleed off pressure, again can draining in the time of circulation well cleanup, the object that can also carry out to preventer pressure testing.Meanwhile, the present embodiment is simple in structure, easy for installation, has abundant function, has very strong practical application effect.
More than show and described general principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. a boll-weevil hanger plugging device, is characterized in that, comprise,
Ball valve mechanism;
Main body, its upper end is connected with described ball valve mechanism lower end, and its inside communicates with ball valve mechanism inside; Described body interior is provided with ball sealer, ball seat, spring, spring base; The main wall bottom of described main body is provided with ball seat shoulder, by-pass prot; Described spring one end is resisted against spring base, and other end contact ball seat stops to ball seat shoulder; Described ball seat seals described by-pass prot and contact with body seal; Described ball sealer is seated at ball seat endoporus upper end; Described spring base is fixedly connected with main body, and described spring base middle part is provided with through hole.
2. a kind of boll-weevil hanger plugging device as claimed in claim 1, is characterized in that, described ball valve mechanism comprises ball valve body, valve ball, valve rod, gasket seal; Described ball valve body is provided with body cavity, and described body cavity middle part is valve body groove; Described valve ball is positioned at valve body groove and is provided with a through hole to be communicated with the body cavity of valve body groove both sides; Described gasket seal by between described valve ball top and valve body groove upper surface, the sealing of valve ball bottom and valve body groove lower surface; On described ball valve body wall, offer valve rod groove, described valve rod groove communicates with valve body groove; Described valve rod is located in valve rod groove and is fixedly connected with valve ball, and described valve rod contacts with valve rod groove sealing.
3. a kind of boll-weevil hanger plugging device as claimed in claim 1 or 2, is characterized in that, described ball valve mechanism lower end is provided with external screw thread, and described main body top is provided with box cupling, and described box cupling is provided with internal thread, and described ball valve mechanism lower end is threaded with described box cupling.
4. a kind of boll-weevil hanger plugging device as claimed in claim 1 or 2, is characterized in that, described spring base through hole is specially interior hexagonal through hole.
5. a kind of boll-weevil hanger plugging device as claimed in claim 2, is characterized in that, described valve rod outer face is provided with interior hexagonal groove.
6. a kind of boll-weevil hanger plugging device as claimed in claim 1 or 2, is characterized in that, described by-pass prot is at least one.
7. a kind of boll-weevil hanger plugging device as claimed in claim 2, is characterized in that, described valve rod contacts specifically, by valve rod and valve rod groove, sealing ring realization is set with valve rod groove sealing.
8. a kind of boll-weevil hanger plugging device as claimed in claim 2, is characterized in that, crown cap is also set in described body cavity; Cap middle part, top is provided with open-work; Described ball valve body middle part is provided with the notch cuttype through hole that internal diameter dwindles successively from top to bottom, and described notch cuttype through hole comprises epimere, stage casing, hypomere; Described top cap is positioned at described notch cuttype through hole stage casing and is tightly connected with ball valve body, and described valve body groove forms described body cavity between described top cap open-work and notch cuttype through hole hypomere and with open-work, notch cuttype through hole hypomere.
9. a kind of boll-weevil hanger plugging device as claimed in claim 8, is characterized in that, is also provided with sealing ring between described top cap and ball valve body.
10. a kind of boll-weevil hanger plugging device as claimed in claim 1, is characterized in that, described spring base is connected with main body by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058387.1U CN203808915U (en) | 2014-02-07 | 2014-02-07 | Plugging device for oil pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058387.1U CN203808915U (en) | 2014-02-07 | 2014-02-07 | Plugging device for oil pipe hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808915U true CN203808915U (en) | 2014-09-03 |
Family
ID=51447688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420058387.1U Expired - Fee Related CN203808915U (en) | 2014-02-07 | 2014-02-07 | Plugging device for oil pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014300A (en) * | 2016-05-17 | 2016-10-12 | 宝鸡石油机械有限责任公司 | Subsea production tree and tubing hanger flushing device |
| US11840922B2 (en) | 2018-11-28 | 2023-12-12 | Abu Dhabi National Oil Company | Blow-out preventer test spool system |
-
2014
- 2014-02-07 CN CN201420058387.1U patent/CN203808915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014300A (en) * | 2016-05-17 | 2016-10-12 | 宝鸡石油机械有限责任公司 | Subsea production tree and tubing hanger flushing device |
| US11840922B2 (en) | 2018-11-28 | 2023-12-12 | Abu Dhabi National Oil Company | Blow-out preventer test spool system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206693997U (en) | A kind of oil field is every excavating technology tubing string | |
| CN203939499U (en) | Pipe string of oil-water well leakage tester | |
| CN203394418U (en) | Manual type rapid plugging device and socket spanner thereof | |
| CN104120998A (en) | Suspension packer for gas well layered exploitation | |
| CN203808915U (en) | Plugging device for oil pipe hanger | |
| CN204386576U (en) | Horizontal well in segments Intermittent cyclic steam stimulation note adopts integrated pipe column | |
| CN104213863B (en) | Water injection well oil jacket plugging device | |
| CN202990953U (en) | Blowout preventing mechanical anchor of screw pump | |
| CN203961897U (en) | A kind of cement paste filling tube external packer envelope is altered instrument | |
| RU128896U1 (en) | DEVICE FOR TRANSFER OF WELLS, INCLUDING WATERFILLED, TO OPERATION ON TWO LIFT COLUMNS | |
| CN204024568U (en) | Water injection well oil jacket plugging device | |
| CN201723196U (en) | Self-sealing setting ball seat | |
| CN204738779U (en) | Clean environment -friendly device of pumpingh well well head | |
| CN104196505B (en) | Chemical flooding layering injection device | |
| CN203161152U (en) | Sucker rod self-sealing preventer | |
| CN204163679U (en) | Multifunctional high pressure tubing plug | |
| CN204140014U (en) | A kind of K344 type packer with twin-stage packing units | |
| CN103867161B (en) | A kind of steam injection plugging valve | |
| CN107939331B (en) | Wellhead protection device for water injection well | |
| CN204804753U (en) | Blanking plug | |
| CN201031647Y (en) | Stop production well head packer | |
| CN105201443A (en) | Oil pipe inner stopper for putting steel wires | |
| CN204152476U (en) | Large pressure reduction crosses cable well packer capable of flushing well | |
| CN203808916U (en) | Releasing blowout preventer | |
| CN201826801U (en) | Wellhead blowout control device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20220207 |