CN208396678U - A kind of duplex single open-door blowout prevention box - Google Patents
A kind of duplex single open-door blowout prevention box Download PDFInfo
- Publication number
- CN208396678U CN208396678U CN201820954150.XU CN201820954150U CN208396678U CN 208396678 U CN208396678 U CN 208396678U CN 201820954150 U CN201820954150 U CN 201820954150U CN 208396678 U CN208396678 U CN 208396678U
- Authority
- CN
- China
- Prior art keywords
- blowout prevention
- door
- single open
- duplex single
- sealing mechanism
- 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.)
- Active
Links
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
The utility model discloses a kind of duplex single open-door blowout prevention boxes, including shell, blowout prevention sealing mechanism, hydraulic mechanism and replacement mechanism, shell is divided into upper housing and lower case, upper housing and lower case are arranged with overlying relation, hydraulic mechanism is two sets, blowout prevention sealing mechanism is two sets, blowout prevention sealing mechanism is that two bodies surround formula structure, a set of hydraulic mechanism is corresponding to control a set of blowout prevention sealing mechanism, blowout prevention sealing mechanism and hydraulic mechanism are arranged with overlying relation, hydraulic mechanism and blowout prevention sealing mechanism are equipped in upper housing, hydraulic mechanism and blowout prevention sealing mechanism also are provided in lower case, replacement mechanism for replacing blowout prevention sealing mechanism has two sets, a set of is the door assembly positioned at duplex single open-door blowout prevention box medium position, another set of is the clip positioned at duplex single open-door blowout prevention box upper position, clip is that two bodies surround formula structure.The patent can effectively extend the time interval of glue core replacement while compress the height dimension of blowout prevention box, preferably facilitate vehicle-mounted or sledge dress.
Description
Technical field
The utility model relates to petroleum well control apparatus fields, and in particular to a kind of duplex single open-door blowout prevention box.
Background technique
At present in oil, gas well coiled tubing production operation, continuous oil pipe anti-blow-out box is one of essential equipment,
Main function is, by squeezing glue core, to make glue core deformable seal coiled tubing and piston week in coiled tubing disengaging oil, gas well
Cavity is enclosed, so that high-pressure medium oily, in gas well be prevented to be discharged into the external world.
Traditional blowout prevention box is simply connected blowout prevention box, only one glue core, and the service life of glue core is inherently limited
, the abominable of various operating conditions, but will shorten the service life of glue core in addition.The use shorter because of its glue core of simply connected blowout prevention box
Service life is often unable to complete the job requirements of a well, when glue core abrasion when, need to carry out in operation dismantle blowout prevention box to
Glue core is replaced, and the process replaced will definitely increase the risk of operation because of the high pressure in its oil, gas well, replacement glue core is indulged in
Time accidentally also reduces continuous oil pipe operation efficiency.
With the continuous improvement of industry research and development technology, also there is an appearance of multistage blowout prevention box, but the structure of this form without
Doubt and considerably increase the height of blowout prevention box itself, the increase of height it is covert increase vehicle-mounted or skid difficulty.
Urgently a kind of new blowout prevention box reduces the requirement that the number of glue core replacement is also able to satisfy vehicle-mounted or sledge dress thus.
Utility model content
The purpose of this utility model overcomes the deficiencies of the prior art and provide a kind of duplex single open-door blowout prevention box, the duplex list
The number that the design that door blowout preventing box passes through double glue cores effectively reduces the replacement of glue core promotes continuous oil pipe operation efficiency, passes through simultaneously
The height dimension of blowout prevention box is substantially shortened in the optimization that glue core replaces mechanism structure, preferably facilitates vehicle-mounted or sledge dress.
The purpose of this utility model is reached by following technical measures: a kind of duplex single open-door blowout prevention box, including shell
Body, blowout prevention sealing mechanism, hydraulic mechanism and replacement mechanism, shell are divided into upper housing and lower case, more than upper housing and lower case
Lower positional relationship setting, hydraulic mechanism are two sets, and blowout prevention sealing mechanism is two sets, and blowout prevention sealing mechanism is that two bodies surround formula knot
Structure, a set of hydraulic mechanism is corresponding to control a set of blowout prevention sealing mechanism, and blowout prevention sealing mechanism and hydraulic mechanism are with overlying relation
It is arranged, hydraulic mechanism and blowout prevention sealing mechanism is equipped in upper housing, also is provided with hydraulic mechanism and blowout prevention sealing mechanism in lower case,
Replacement mechanism for replacing blowout prevention sealing mechanism has two sets, it is a set of for the door positioned at duplex single open-door blowout prevention box medium position it is total
At another set of for positioned at the clip of duplex single open-door blowout prevention box upper position, clip is that two bodies surround formula structure.
Further, blowout prevention sealing mechanism is made of anti-extrusion rings and glue core, and anti-extrusion rings and glue core are from top to bottom successively
Connection, two sets of blowout prevention sealing mechanisms are arranged using two-piece unit formula.
Further, duplex single open-door blowout prevention box further includes the position-limit mechanism for carrying out stroke limit to hydraulic mechanism,
Position-limit mechanism is respectively to be located at the intracorporal locking nut of upper casing and lower case.
Further, the both ends of two sets of blowout prevention sealing mechanisms are designed with for aligning and the copper sheathing group of guiding role,
Wherein a set of copper sheathing group is the top copper sheathing and guide copper sleeve positioned at duplex single open-door blowout prevention box inner cavity top, another set of copper sheathing group
For positioned at the upper copper sheathing and lower copper sheathing of duplex single open-door blowout prevention box inner cavity lower part, copper sheathing group is that two bodies surround formula structure.
Further, stud is connected between upper housing and lower case, door assembly is located on stud, can be revolved around stud
Turning, has on door assembly for opening and closing the door lock of door assembly, split type clip is stuck in the peripheral groove of locking nut, and
It is connected by hexagon socket cap head screw.
Further, clip is equipped with lubrication hydraulic fluid port.
Further, duplex single open-door blowout prevention box is equipped with pressure detecting mouth, and is equipped with for opening and closing pressure
The valve seat and spool of detection mouth.
Further, duplex single open-door blowout prevention box lower part is equipped with for observing outflow medium to judge the leakage of leakproofness
Observation panel.
Further, duplex single open-door blowout prevention box lower part is that flange or union connect.
Compared with prior art, the utility model has the beneficial effects that
1. glue core is two sets, it is arranged using two-piece unit formula, ensure that the site safety of continuous oil pipe operation, extends glue core
The time interval of replacement, improves operating efficiency.
2. realizing the replacement of top glue core by the clip that two bodies surround formula structure, the height gauge of blowout prevention box has been greatly reduced
Very little, weight is also effectively controlled, and is more convenient vehicle-mounted or skid.
3. the glue core for replacing lower part is easy to operate, can be replaced by the folding of door assembly.
4. the glue core design that liang body surrounds formula structure can directly replace glue in the case where realizing coiled tubing still in well
Core.It elaborates with reference to the accompanying drawings and detailed description to the utility model.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of duplex single open-door blowout prevention box.
Wherein, 1. flange in the bottom, 2. fillister head screws, 3. lower cases, 4. lower pistons, 5. nut, 6. stud, 7. plunger guide
Set, 8. plungers, 9. plunger retaining rings, 10. pressing plates, 11. upper housings, 12. upper pistons, 13. locking nuts, 14. positioning pins, 15. cards
Hoop, 16. hexagon socket cap head screws, 17. top copper sheathings, 18. anti-extrusion rings, 19. glue cores, 20. guide copper sleeves, 21. upper copper sheathings,
22. hexagon socket countersunk flat cap head screw, 23. assemblies, 24. door locks, 25. socket cap screws, 26. lower copper sheathings, 27. valve seats,
28. spool
Specific embodiment
As shown in Figure 1, a kind of duplex single open-door blowout prevention box, including shell, blowout prevention sealing mechanism, hydraulic mechanism and changing machine
Structure, shell are divided into upper housing 11 and lower case 3, and upper housing 11 is arranged with lower case 3 with overlying relation, and hydraulic mechanism is
Two sets, two sets of hydraulic mechanisms are respectively upper piston 12 and lower piston 4, and blowout prevention sealing mechanism is two sets, and blowout prevention sealing mechanism is two
Body surrounds formula structure, and a set of hydraulic mechanism, which corresponds to, controls a set of blowout prevention sealing mechanism, more than blowout prevention sealing mechanism and hydraulic mechanism
The setting of lower positional relationship is equipped with hydraulic mechanism and blowout prevention sealing mechanism in upper housing 11, also be provided in lower case 3 hydraulic mechanism and
Blowout prevention sealing mechanism, the replacement mechanism for replacing blowout prevention sealing mechanism have two sets, and a set of is positioned at duplex single open-door blowout prevention box
The door assembly 23 of medium position, it is another set of for positioned at the clip 15 of duplex single open-door blowout prevention box upper position, clip is the conjunction of two bodies
Enclose formula structure.Replacing mechanism can be to blowout prevention sealing mechanism and copper sheathing group quick-replaceable.
Blowout prevention sealing mechanism is made of anti-extrusion rings 18 and glue core 19, and anti-extrusion rings 18 and glue core 19 successively connect from top to bottom
It connecing, two sets of blowout prevention sealing mechanisms are arranged using two-piece unit formula, can be in the case where a set of failures, enabling is another set of, increases greatly
Add the security reliability of operation, improve continuous oil pipe operation efficiency.
Duplex single open-door blowout prevention box further includes the position-limit mechanism for carrying out stroke limit to hydraulic mechanism, position-limit mechanism point
It is not locking nut 13 and lower case 3 in upper housing 11.
The both ends of two sets of blowout prevention sealing mechanisms are designed with for aligning and the copper sheathing group of guiding role, and copper sheathing group is two
Body surrounds formula structure, and simple to operate in singly set replacement, two sets of copper sheathing groups are arranged using two-piece unit formula, a set of use,
It is a set of spare, wherein a set of is the top copper sheathing 17 and guide copper sleeve 20 positioned at duplex single open-door blowout prevention box inner cavity top, it is another
Set is the upper copper sheathing 21 and lower copper sheathing 26 positioned at duplex single open-door blowout prevention box inner cavity lower part, and copper sheathing group uses super abrasive aluminium bronze,
It is longer than the copper sheathing of simply connected blowout prevention box, guiding coiled tubing can be more effectively aligned, keeps coiled tubing as placed in the middle straight as possible
By glue core 19, to extend the service life of glue core 19.
Stud 6 is connected between upper housing 11 and lower case 3, stud 6 is to be threadedly coupled with upper housing 11, and stud 6 is under
Shell 3 is connected by nut 5, and door assembly 23 is located on stud 6, can be rotated around stud 6, is used to open on door assembly 23
With the door lock 24 for closing door assembly 23, split type clip 15 is stuck in the peripheral groove of locking nut 13, and passes through interior hexagonal circle
Chapiter screw 16 connects.
Clip 15 is equipped with lubrication hydraulic fluid port I, can increase the service life of glue core 19 to coiled tubing sufficient lubrication.
Duplex single open-door blowout prevention box is equipped with pressure detecting mouth, and is equipped with for opening and closing the valve of pressure detecting mouth
Seat 27 and spool 28 then needs to remove valve seat 27, spool 28 when if desired detecting pressure in blowout prevention box, install pressure gauge or
Person's pressure sensor.
Duplex single open-door blowout prevention box lower part is equipped with for observing outflow medium to judge the leakage observation panel H of leakproofness.
Duplex single open-door blowout prevention box lower part is that flange or union connect.
Copper sheathing group, anti-extrusion rings 18, glue core 19 inner hole have different size, be suitable for different size coiled tubing
Operation.
The case where duplex single open-door blowout prevention box uses hydraulic control system, can seal coiled tubing according to glue core 19, comes
Fluid control pressure is raised and lowered, to while sealing, improve the use of glue core 19 to control the compression deformation of glue core 19
Service life；
Upper piston 12 is mounted in 11 inner hole of upper housing, and locking nut 13 is connect by screw thread with upper housing 11, and to upper
Piston 12 carries out stroke limit, and guide copper sleeve 20, glue core 19, anti-extrusion rings 18, top copper sheathing 17 are in turn mounted to from top to bottom
In locking nut 13, top copper sheathing 17 is fixed on locking nut 13 by split type clip 15.Two bodies surround formula structure
Clip 15 carries out assembly positioning by pin 14, and is connected by hexagon socket cap head screw 16.
Lower piston 4 is mounted in 1 inner hole of flange in the bottom, and lower case 3 is fixed on flange in the bottom 1 by fillister head screw 2,
Plunger 8 is mounted in the inner hole of lower case 3, and carries out stroke limit by plunger guide set 7, and plunger guide set 7 is justified by interior hexagonal
Chapiter screw 25 is fixed in lower case 3.Lower copper sheathing 26, glue core 19, anti-extrusion rings 18, upper copper sheathing 21 are successively pacified from top to bottom
In the inner hole of plunger 8；Plunger retaining ring 9 is connect by screw thread with plunger 8, when preventing maloperation, door assembly 23 can to its into
Row limit.
Upper housing 11 is provided with hydraulic oil port E, F, controls the up and down motion of upper piston 12；
Lower case 3 is provided with hydraulic oil port C, D, controls the up and down motion of plunger 8；
The extruding hydraulic fluid port A that is located on flange in the bottom 1, the fortune up and down for being located at 3 pressure release hydraulic fluid port B of lower case control lower piston 4
It is dynamic.
Duplex single open-door blowout prevention box is typically mounted between lubricator and injection head.When continuous oil pipe operation, continuous oil
Through-hole of the pipe across blowout prevention box.
In continuous oil pipe operation, the glue core 19 of lower part can be used, operate hydraulic control system from A mouthfuls and suppress oiling,
Lower piston 4 drives lower copper sheathing 26 to move upwardly together and squeezes the deformation of glue core 19 under the promotion of hydraulic coupling, thus the continuous oil of sealing
The ring cavity of pipe and plunger 8.Realize the sealing to coiled tubing.
When glue core 19 when lower part needs replacing, the pressure in duplex single open-door blowout prevention box through-hole is reduced to 0 first, then grasp
Make hydraulic control system and suppress oiling from B mouthfuls, keep lower piston 4 fully retracted, Revolving door lock 24 opens door assembly 23, operates liquid
Pressure control system suppresses oiling from D mouthfuls, and plunger 8 is moved downward by hydraulic coupling, is completely exposed glue core 19, anti-extrusion rings 18, glue
Core 19 and anti-extrusion rings 18 all surround formula structure for two bodies, can be replaced in the case where there is coiled tubing.Upper copper sheathing
21, lower copper sheathing 26 is also two body modular constructions, can also be replaced according to abrasion condition.After more renewing accessory, operate hydraulic
Control system suppresses oiling from C mouthfuls, and plunger 8 is moved upwards closing window by hydraulic coupling, is locked door assembly 23 with door lock 24.
In continuous oil pipe operation, if the glue core 19 of lower part fails, the glue core 19 on top can be used, operate liquid
Pressure control system suppresses oiling from E mouthfuls, and upper piston 12 drives guide copper sleeve 20 to move upwardly together crowded under the promotion of hydraulic coupling
Moulding core 19 deforms, to seal the ring cavity of coiled tubing Yu locking nut 13.It realizes working continuously for coiled tubing, ensure that
The safety of operation and improve efficiency.
When glue core 19 when top needs replacing, duplex single open-door blowout prevention box is dismantled from injection head first, then
It operates hydraulic control system and suppresses oiling from F mouthfuls, keep upper piston 12 fully retracted, hexagon socket cap head screw 16 is dismantled, by two
The clip 15 that body surrounds formula structure is removed from locking nut 13, and operation hydraulic control system suppresses oiling, upper piston 12 from E mouthfuls
It is moved upwards by hydraulic coupling, is completely exposed anti-extrusion rings 18, glue core 19, is replaced.It can also be according to copper sheathing group abrasion condition
It is replaced.
With the word of direction instruction involved in this specification, as "upper" be close to top copper sheathing one end, "lower" be with
One end that top copper sheathing is away from each other.
Claims (9)
1. a kind of duplex single open-door blowout prevention box, including shell, blowout prevention sealing mechanism, hydraulic mechanism and replacement mechanism, shell are divided into
Upper housing and lower case, upper housing and lower case are arranged with overlying relation, and hydraulic mechanism is two sets, and blowout prevention sealing mechanism is
Two sets, blowout prevention sealing mechanism is that two bodies surround formula structure, and a set of hydraulic mechanism is corresponding to control a set of blowout prevention sealing mechanism, and blowout prevention is close
Sealing mechanism and hydraulic mechanism are arranged with overlying relation, and hydraulic mechanism and blowout prevention sealing mechanism, lower case are equipped in upper housing
In also be provided with hydraulic mechanism and blowout prevention sealing mechanism, it is characterised in that: the replacement mechanism for replacing blowout prevention sealing mechanism has two
Set, it is a set of for positioned at the door assembly of duplex single open-door blowout prevention box medium position, another set of is on duplex single open-door blowout prevention box
The clip of portion position, clip are that two bodies surround formula structure.
2. duplex single open-door blowout prevention box according to claim 1, it is characterised in that: the blowout prevention sealing mechanism is by anti-extrusion
Ring and glue core composition, anti-extrusion rings and glue core are sequentially connected from top to bottom, and two sets of blowout prevention sealing mechanisms are set using two-piece unit formula
It sets.
3. duplex single open-door blowout prevention box according to claim 1, it is characterised in that: the duplex single open-door blowout prevention box also wraps
Include for hydraulic mechanism carry out stroke limit position-limit mechanism, position-limit mechanism be respectively be located at the intracorporal locking nut of upper casing and
Lower case.
4. duplex single open-door blowout prevention box according to claim 1, it is characterised in that: the two of two sets of blowout prevention sealing mechanisms
End is designed with for align and the copper sheathing group of guiding role, wherein a set of copper sheathing group is on duplex single open-door blowout prevention box inner cavity
The top copper sheathing and guide copper sleeve in portion, another set of copper sheathing group are the upper copper sheathing positioned at duplex single open-door blowout prevention box inner cavity lower part under
Copper sheathing, copper sheathing group are that two bodies surround formula structure.
5. duplex single open-door blowout prevention box according to claim 1, it is characterised in that: connect between the upper housing and lower case
It is connected to stud, door assembly is located on stud, can be rotated around stud, is had on door assembly for opening and closing the door of door assembly
Lock, split type clip are stuck in the peripheral groove of locking nut, and are connected by hexagon socket cap head screw.
6. duplex single open-door blowout prevention box according to claim 1, it is characterised in that: the clip is equipped with lubrication hydraulic fluid port.
7. duplex single open-door blowout prevention box according to claim 1-6, it is characterised in that: the duplex single open-door is anti-
Spray box is equipped with pressure detecting mouth, and the valve seat and spool being equipped with for opening and closing pressure detecting mouth.
8. duplex single open-door blowout prevention box according to claim 1-6, it is characterised in that: the duplex single open-door is anti-
Spray box lower part is equipped with for observing outflow medium to judge the leakage observation panel of leakproofness.
9. duplex single open-door blowout prevention box according to claim 1-6, it is characterised in that: the duplex single open-door is anti-
Spray box lower part is that flange or union connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954150.XU CN208396678U (en) | 2018-06-20 | 2018-06-20 | A kind of duplex single open-door blowout prevention box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954150.XU CN208396678U (en) | 2018-06-20 | 2018-06-20 | A kind of duplex single open-door blowout prevention box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396678U true CN208396678U (en) | 2019-01-18 |
Family
ID=65132955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820954150.XU Active CN208396678U (en) | 2018-06-20 | 2018-06-20 | A kind of duplex single open-door blowout prevention box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208396678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107248A (en) * | 2019-05-31 | 2019-08-09 | 宝鸡石油机械有限责任公司 | A kind of spray arrester control device and its method of controlling security |
| CN113236185A (en) * | 2021-05-24 | 2021-08-10 | 中海油田服务股份有限公司 | High-temperature-resistant heat-insulation blowout preventer |
-
2018
- 2018-06-20 CN CN201820954150.XU patent/CN208396678U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107248A (en) * | 2019-05-31 | 2019-08-09 | 宝鸡石油机械有限责任公司 | A kind of spray arrester control device and its method of controlling security |
| CN113236185A (en) * | 2021-05-24 | 2021-08-10 | 中海油田服务股份有限公司 | High-temperature-resistant heat-insulation blowout preventer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208396678U (en) | A kind of duplex single open-door blowout prevention box | |
| CN208396677U (en) | A kind of double door blowout prevention box | |
| CN2779047Y (en) | Sealed type oil-water well under-pressure operation equipment | |
| CN201371352Y (en) | Assembling and disassembling tool of back pressure valve | |
| CN207960565U (en) | A kind of series connection blowout prevention box of cone seal | |
| CN106092760A (en) | Gas cylinder by hydrostatic pressure test Special pressing head | |
| CN204920865U (en) | Shale gas well mouth main control valve area is pressed and is changed device | |
| CN2551758Y (en) | Annular blowout preventer for well drilling | |
| CN201443338U (en) | Swabbing and blowout-prevention device for oil field | |
| CN111411914B (en) | Blowout prevention blanking plug for shaft | |
| CN105569593B (en) | Secondary locking device for oil gas drilling-production equipment under water | |
| CN207739969U (en) | A kind of well head hydraulic quick connecting device | |
| CN207736240U (en) | A kind of prefill valve dismantling device of 500t oil pipes end upsetting machine | |
| CN203889992U (en) | Hydraulic jack | |
| CN206256897U (en) | A kind of totally-enclosed high pressure valve leakage controlling device | |
| CN205936515U (en) | Slim -hole is with selecting test valve | |
| CN205200963U (en) | Tool for drawing valve seat | |
| CN201277164Y (en) | Oil-draining lubricator type oil pump | |
| CN2668828Y (en) | Portal hydraulic lifter for drilling and repairing well of petroleum | |
| CN210859161U (en) | Hydraulic control blowout preventer for pump oil pipe | |
| CN204126637U (en) | The pneumatic pressure testing device of oil field operation | |
| CN202596647U (en) | Sleeve-pumping two-stage pneumatic blowout-preventing box | |
| CN201496078U (en) | Top cover injection type single hydraulic prop | |
| CN113027349A (en) | Multifunctional polish rod converter | |
| CN207453916U (en) | The quick unfreezing apparatus for work of novel multi-use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |