CN106050179B - A kind of tracking mode well mouth sealing device and its encapsulating method - Google Patents
A kind of tracking mode well mouth sealing device and its encapsulating method Download PDFInfo
- Publication number
- CN106050179B CN106050179B CN201610585453.4A CN201610585453A CN106050179B CN 106050179 B CN106050179 B CN 106050179B CN 201610585453 A CN201610585453 A CN 201610585453A CN 106050179 B CN106050179 B CN 106050179B
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- packing
- lower contact
- polished rod
- sealing device
- top connection
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- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 61
- 230000000694 effects Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 235000014121 butter Nutrition 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of tracking mode well mouth sealing device and its encapsulating method, well mouth sealing device includes packing assembly, top connection, flexible soft pipe connecting assembly and lower contact, the packing assembly includes packing box, two-stage centering ring, packing and pressure cap, the top connection includes top hose interface, upper supporter, the detour hose assembly includes flexible soft pipe and bearing torque terminal pad, the lower contact includes bottom hose interface, lower support, and the upper supporter is connected by bearing torque terminal pad with axis pin with lower support；The present invention upper lower contact under the action of flexible soft pipe can be in the offset of any angle inclination and any direction, and upper lower contact can carry out torque transmission by bearing torque terminal pad and axis pin, for tightening packing, the two-stage polished rod righting of top connection enables sealed packing real-time tracking polished rod to tilt and deviate, the wear ring of lower contact simultaneously can prevent polished rod eccentric wear wellhead tee joint and down-hole oil tube, can reduce well head eccentric wear, improve leakproofness, extend packing service life.
Description
Technical field
The present invention relates to oil, the technical field of cbm development more particularly to a kind of tracking mode well mouth sealing device and
Its encapsulating method.
Background technology
Oil extraction in oil field and coal bed gas field mining gas recovery facility mostly use sucker rod pump equipment, due to pumping unit installation not just,
Eccentric wear easily occurs for reasons, polished rod and the well heads such as base deformation, causes well head oil leak, need to constantly tighten packing, replace packing even more
Well head and polished rod are changed, causes shutdown, wasting manpower and material resources' betrothal gifts, it is often more important that well head oil leak or gas leakage often result in serious peace
Full hidden danger.Existing adjustable offset well mouth sealing device has following defect in use：
1, angleonly tracking can only be carried out using the well mouth sealing device of ball-bowl type sealing structure circle, polished rod and well can not be carried out
The translation tracking of mouth；
Relatively elaborate, Er Qiexin when 2, carrying out the well mouth sealing device of tuningout using flexible pipe structure due to replacing sealing ring
The sealing ring of dress is also difficult to be compacted, and using effect is not highly desirable.
For this purpose, the designer of the present invention, in view of drawbacks described above, by concentrating on studies and designing, synthesis is engaged in for many years for a long time
The experience and achievement of related industry, research and design goes out a kind of tracking mode well mouth sealing device and its encapsulating method, above-mentioned to overcome
Defect.
Invention content
The object of the present invention is to provide a kind of tracking mode well mouth sealing device and its encapsulating methods, make sucker rod pump polished rod seal
Packing can real-time tracking polished rod offset, ensure polished rod and sealed packing proper alignment, reduce well head eccentric wear, solve existing skill
The problem of art.
To solve the above problems, the invention discloses a kind of tracking mode well mouth sealing devices comprising packing assembly, on connect
Head, flexible hose connecting assembly and lower contact, it is characterised in that：
The packing assembly is located at the top of top connection, and the top connection is connected to down by flexible hose connecting assembly and is connect
Head realizes automatic deflection adjusting to realize the sealing of polished rod by polished rod sealer by flexible hose connecting assembly
The packing assembly include packing box, level-one centering ring, two level centering ring, packing and pressure cap, level-one centering ring and
Two level centering ring forms two-stage righting function, is respectively provided at the both ends of packing box, and the packing is rubber system abrasive sealing materials,
The pressure cap is mounted on packing box top to compress packing；
The flexible hose connecting assembly includes at least flexible hose, and the lower end of the top connection is equipped with bottom hose interface,
The upper end of the lower contact is equipped with top hose interface, the bottom hose interface and top hose interface and connects for the both ends of flexible hose
It connects,
The both sides of the top connection are respectively equipped with supporter in the L-type being oppositely arranged, and the both sides of the lower contact are set respectively
There are the L-type lower support being oppositely arranged, the upper supporter and the spaced 90 degree of settings of lower support, the flexible hose
Outside is equipped with a bearing torque terminal pad, and the periphery of the bearing torque terminal pad is connected to the upper supporter and lower branch by axis pin respectively
Support body.
Wherein：The packing box is threadedly coupled with top connection top by lower thread or is integrally set with top connection
It sets.
Wherein：The flexible hose uses metal hose, bellows or high-pressure rubber pipe.
Wherein：The both ends of the flexible hose are fixed on by hose fixed ring crimp in upper lower contact respectively.
Wherein：The internal diameter of the bearing torque terminal pad is more than flexible hose, and flexible hose passes through and has from bearing torque terminal pad
Certain activity space.
Wherein：The axis pin is arranged in bearing torque terminal pad or mounted on the end of upper supporter and lower support, to make
Upper and lower supporter and the angled movement of bearing torque terminal pad and generation small range displacement bias.
Wherein：The inside of the lower contact is embedded with a wear ring.
Wherein：The wear ring internal diameter is less than lower contact, wellhead tee joint and pipe aperture.
The encapsulating method of tracking mode well mouth sealing device is also disclosed, including following step：
Step 1: carrying out the pre-installation of tracking mode inlet device, complete to seal the experiment that builds the pressure；
Step 2: the coating butter on polished rod, removes packing, polished rod is made to pass through device；
Step 3: lower contact is connect with well head or blowout hookup, the packing of taking-up is reinstalled and is adjusted to not leak
State；
Step 4: start normal oil pumping program, top connection and packing due to level-one centering ring and the effect of two level centering ring with
Polished rod keeps concentric, and flexible hose ensures real-time tracking of the top connection to polished rod.
It can be seen from the above content that a kind of tracking mode well mouth sealing device and its encapsulating method of the present invention have following effect
Fruit：
1, polished rod seal can carry out real-time tracking to polished rod, reduce well head packing eccentric wear；
2, the born torque of sealing mechanism, stretching and pressure can be directly transferred to well head, reduce flexible hose stress, increase
Flexible hose service life and sealing mechanism can bear high torque to compress packing；
3, lower contact design wear ring can avoid eccentric wear of the polished rod to well head and down-hole oil tube.
The detailed content of the present invention can be obtained by aftermentioned explanation and institute's attached drawing.
Description of the drawings
Fig. 1 shows a kind of structural scheme of mechanism of tracking mode well mouth sealing device of the present invention.
Fig. 2 shows the schematic diagram of tracks of device in the present invention.
Fig. 3 shows the schematic diagram that deviation correcting device is translated in the present invention.
Fig. 4 shows the enlarged schematic partial view of the present invention.
Reference numeral：
1. polished rod, 2. lower contacts, 3. wear rings, 4. hose fixed rings, 5. lower supports, 6. axis pins, 7. bearing torque terminal pads,
8. flexible hose, 9. lower supports, 10. level-one centering rings, 11. packing boxs, 12. packings, 13. two level rightings are changed, 14. glands,
15. top connection.
Specific implementation mode
Referring to Fig. 1, it is shown that a kind of tracking mode well mouth sealing device of the invention comprising polished rod sealer, top connection,
Flexible hose connecting assembly and lower contact.
The polished rod sealer is located at the top of top connection 15, can be attached between the two by screw thread, also can be by light
Rod sealer is wholely set with top connection, and the top connection 15 is connected to lower contact 2 by flexible hose connecting assembly, to logical
The sealing that polished rod sealer realizes polished rod is crossed, automatic deflection adjusting is realized by flexible hose connecting assembly.
Wherein, the polished rod sealer can be fluid pressure type, glue injection type, packing-type, can also be connected with other sealers
It connects, shows that the packing assembly of packing-type, the packing assembly include packing box 11, level-one righting in the embodiment shown in fig. 1
Ring 10, two level centering ring 13, packing 12 and pressure cap 14, level-one centering ring 10 and two level centering ring 14 form two-stage righting function,
The both ends of packing box 11 are respectively provided at, when polished rod 1 passes through level-one centering ring 10, two level centering ring 14 and packing 12, in righting
Under the action of ring 10,14, airtight and watertight padding and the polished rod 1 of packing 12 keep concentric, it is preferred that the packing 12 is that rubber system is resistance to
Sealing material is ground, the pressure cap 14 is mounted on 11 top of packing box to compress packing 12, forms effective sealing to polished rod.
Wherein, the packing box 11 can be threadedly coupled by lower thread with 15 top of top connection, can also be set
On 15 top of top connection, it is integrated with top connection 15.
The flexible hose connecting assembly includes at least flexible hose 8, and the lower end of the top connection 15 connects equipped with bottom hose
Mouthful, the upper end of the lower contact 2 is equipped with top hose interface, and the bottom hose interface and top hose interface are for the two of flexible hose 8
End connection, the both ends of the detour hose 8 can be fixed on top connection 15 and lower contact 2 by hose fixed ring 4 respectively.
Wherein, referring to Fig. 2, to realize real-time tracking and the effectively correction to polished rod, the both sides difference of the top connection 15
Equipped with supporter 9 in the L-type being oppositely arranged, supporter 9 extends separately down again after extending outwardly from top connection 15 on two, described
The both sides of lower contact 2 are respectively equipped with the L-type lower support 5 being oppositely arranged, two lower supports 5 from lower contact 4 extend outwardly after again
It upwardly extends respectively, the 5 spaced 90 degree of settings of the upper supporter 9 and lower support, the outside of the flexible hose 8 is equipped with
One bearing torque terminal pad 7, the periphery of the bearing torque terminal pad 7 is equipped with the axis pin 6 for being spaced 90 degree of settings successively, wherein two are oppositely arranged
Axis pin 6 be placed through the pin shaft hole of 9 end of supporter on two respectively, in addition two axis pins 6 being oppositely arranged are placed through under two respectively
The pin shaft hole (referring to Fig. 3 and Fig. 4) of 5 end of supporter, as a result, the flexible hose 8 pass through hose fixed ring 4 and upper lower contact
15 are connected with 2 bottom hose interface with top hose connector, the bearing torque terminal pad 7 by by axis pin 6 and upper supporter 9 and
Lower support 5 is connected, and by this structure setting, effectively realizes real-time tracking of the polished rod 1 in bending process.
Wherein, the upper supporter 9 is solderable in top connection 15, and the lower support 5 is solderable in lower contact 2.
Wherein：The tip designs of the upper supporter 9 and lower support 5 have pin shaft hole, can be connect with bearing torque by axis pin 6
Disk 7 is connected.
Wherein：Metal hose, bellows and high-pressure rubber pipe etc. can be used in the flexible hose 8.
Wherein：In Fig. 1 embodiments, the connection type of flexible hose 8 and upper lower contact is 4 crimp of hose fixed ring
Flexible hose 8 is fixed in upper lower contact, high-voltage tube is similar to and crimps, screw-type, flange form, clamping hoop type etc. also may be selected even
Connect mode.
Wherein：7 internal diameter of bearing torque terminal pad is more than flexible hose 8, and flexible hose 8 can pass through and have from bearing torque terminal pad 7
Certain activity space, to provide effective connection of upper lower contact in the flexible tracking for keeping flexible hose 8.
The axis pin 6 is solderable in bearing torque terminal pad 7, can also be mounted on upper and lower supporter 9 and 5 arm ends, can make
(length of a and b become for upper and lower supporter 9 and 5 and the angled movement of bearing torque terminal pad 7 and generation small range displacement bias
Change).
The lower part of the lower contact 2 connect with wellhead tee joint or by the blowout hookup such as polished rod gate valve, ball valve and well head three
It is logical to be connected.
Wherein：5 arm end of the lower support is designed with pin shaft hole, can be connected with bearing torque terminal pad 7 by axis pin 6.
Wherein：The inside of the lower contact 2 is embedded with a wear ring 3, and 3 internal diameter of the wear ring is slightly smaller than lower contact 2, well head
Threeway and pipe aperture.
The bias-adjusting sealing process of the present invention is described below：The present apparatus is after installation is complete, top connection 15 and packing box
11 keep real-time tuningout to track 1 position of polished rod under the action of flexible hose 8, in level-one centering ring 10, two level centering ring 13
Under the action of packing box 11 keep concentric with polished rod 1 always, to reduce 12 eccentric wear of packing；Top connection 15 passes through bearing torque terminal pad 7
By the torque of packing box 11 and axial force transmission to lower contact 2,8 stress of flexible hose is reduced；Wear ring 3 can in lower contact 2
Abrasion of the polished rod 1 to well head and oil pipe is reduced, prevents from eccentric wear being transferred to underground.
By above-mentioned tracking mode well mouth sealing device, tracking mode wellhead sealing method of the invention, including following step：
Step 1: carrying out the pre-installation of tracking mode inlet device, and preferably completes sealing and build the pressure experiment；
Step 2: the coating butter on polished rod 1, removes packing 12, polished rod 1 is made to pass through device；
Step 3: lower contact 2 is connect with well head or blowout hookup, the packing 12 of taking-up is reinstalled and is adjusted to not
Leakage state；
Step 4: starting normal oil pumping program, top connection 11 and packing 12 are due to level-one centering ring 10 and two level centering ring
13 effects keep concentric with polished rod 1, and flexible hose 8 can guarantee that real-time tracking of the top connection 15 to polished rod 1, lower contact 2 hold mill
Ring 3 can reduce polished rod 1 to the eccentric wear of well head and down-hole oil tube, and eccentric wear is prevented to be transferred to underground.
It can be seen that the tracking mode well mouth sealing device and its encapsulating method of the present invention have the following advantages that：
1, polished rod seal can carry out real-time tracking to polished rod, reduce well head packing eccentric wear；
2, the born torque of sealing mechanism, stretching and pressure can be directly transferred to well head, reduce flexible hose stress, increase
Flexible hose service life and sealing mechanism can bear high torque to compress packing；
3, lower contact design wear ring can avoid eccentric wear of the polished rod to well head and down-hole oil tube.
The detailed content of the present invention can be obtained by aftermentioned explanation and institute's attached drawing.
It is readily apparent that above description and record is only illustrated in the disclosure being not intended to be limiting of the invention
Appearance, application or use.Although describing and being described in the accompanying drawings embodiment in embodiment, the present invention does not limit
Be described as by attached drawing example and in embodiment it is now recognized that optimal mode to implement the particular case of the teachings of the present invention
Son, the scope of the present invention is by any embodiment of the description and appended claims including falling into front.
Claims (9)
1. a kind of tracking mode well mouth sealing device comprising packing assembly, top connection, flexible hose connecting assembly and lower contact,
It is characterized in that：
The packing assembly is located at the top of top connection, and the top connection is connected to lower contact by flexible hose connecting assembly,
To realize the sealing of polished rod by polished rod sealer, automatic deflection adjusting is realized by flexible hose connecting assembly,
The packing assembly includes packing box, level-one centering ring, two level centering ring, packing and pressure cap, level-one centering ring and two level
Centering ring forms two-stage righting function, is respectively provided at the both ends of packing box, the packing is rubber system abrasive sealing materials, described
Pressure cap is mounted on packing box top to compress packing；
The flexible hose connecting assembly includes at least flexible hose, and the lower end of the top connection is equipped with bottom hose interface, described
The upper end of lower contact is equipped with top hose interface, and both ends of the bottom hose interface with top hose interface for flexible hose connect,
The both sides of the top connection are respectively equipped with supporter in the L-type being oppositely arranged, and supporter extends outwardly from top connection on two
Extend separately down again afterwards, the both sides of the lower contact are respectively equipped with the L-type lower support being oppositely arranged, and two lower supports are under
Connector upwardly extends respectively again after extending outwardly, the upper supporter and the spaced 90 degree of settings of lower support, the flexibility
The outside of hose is equipped with a bearing torque terminal pad, and the periphery of the bearing torque terminal pad is connected to the upper supporter by axis pin respectively
And lower support.
2. track formula well mouth sealing device as described in claim 1, it is characterised in that：The packing box by lower thread with it is upper
Connector top be threadedly coupled or be wholely set with top connection.
3. track formula well mouth sealing device as described in claim 1, it is characterised in that：The flexible hose using metal hose,
Bellows or high-pressure rubber pipe.
4. track formula well mouth sealing device as described in claim 1, it is characterised in that：The both ends of the flexible hose pass through respectively
Hose fixed ring crimp is fixed in lower contact.
5. track formula well mouth sealing device as described in claim 1, it is characterised in that：The internal diameter of the bearing torque terminal pad, which is more than, scratches
Property hose, flexible hose pass through from bearing torque terminal pad and have certain activity space.
6. track formula well mouth sealing device as described in claim 1, it is characterised in that：Axis pin setting in bearing torque terminal pad or
Mounted on the end of upper supporter and lower support, to make upper and lower supporter and the angled movement of bearing torque terminal pad and generation
Small range displacement bias.
7. track formula well mouth sealing device as described in claim 1, it is characterised in that：Mill is held embedded with one in the inside of the lower contact
Ring.
8. track formula well mouth sealing device as claimed in claim 7, it is characterised in that：The wear ring internal diameter be less than lower contact,
Wellhead tee joint and pipe aperture.
9. such as the encapsulating method of tracking mode well mouth sealing device according to any one of claims 1-8, including following step：
Step 1: carrying out the pre-installation of tracking mode inlet device, complete to seal the experiment that builds the pressure；
Step 2: the coating butter on polished rod, removes packing, polished rod is made to pass through device；
Step 3: lower contact is connect with well head or blowout hookup, the packing of taking-up is reinstalled and is adjusted to not leak state；
Step 4: starting normal oil pumping program, top connection and packing due to level-one centering ring and the effect of two level centering ring and polished rod
Keep concentric, flexible hose ensures real-time tracking of the top connection to polished rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585453.4A CN106050179B (en) | 2016-07-22 | 2016-07-22 | A kind of tracking mode well mouth sealing device and its encapsulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585453.4A CN106050179B (en) | 2016-07-22 | 2016-07-22 | A kind of tracking mode well mouth sealing device and its encapsulating method |
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| Publication Number | Publication Date |
|---|---|
| CN106050179A CN106050179A (en) | 2016-10-26 |
| CN106050179B true CN106050179B (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610585453.4A Active CN106050179B (en) | 2016-07-22 | 2016-07-22 | A kind of tracking mode well mouth sealing device and its encapsulating method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482901A (en) * | 2022-03-30 | 2022-05-13 | 黄国辉 | Inlet polished rod sealing packing box mounting assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330971A (en) * | 1971-10-20 | 1973-09-19 | Hydril Co | Blowout preventer with resistance means between the body and the piston |
| CN2060473U (en) * | 1989-11-23 | 1990-08-15 | 江汉石油学院 | Trace type sucker rod sealing device |
| CN201826796U (en) * | 2010-09-06 | 2011-05-11 | 贾景国 | Deflection device of well head packing box |
| CN202300276U (en) * | 2011-09-23 | 2012-07-04 | 克拉玛依胜利高原机械有限公司 | Hosepipe following deflection-regulation polish rod sealer |
| CN204040980U (en) * | 2014-08-13 | 2014-12-24 | 中国石油天然气股份有限公司 | A kind of bellows formula packing box |
| CN204266971U (en) * | 2014-11-14 | 2015-04-15 | 王晓敏 | A kind of blowout preventer |
-
2016
- 2016-07-22 CN CN201610585453.4A patent/CN106050179B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330971A (en) * | 1971-10-20 | 1973-09-19 | Hydril Co | Blowout preventer with resistance means between the body and the piston |
| CN2060473U (en) * | 1989-11-23 | 1990-08-15 | 江汉石油学院 | Trace type sucker rod sealing device |
| CN201826796U (en) * | 2010-09-06 | 2011-05-11 | 贾景国 | Deflection device of well head packing box |
| CN202300276U (en) * | 2011-09-23 | 2012-07-04 | 克拉玛依胜利高原机械有限公司 | Hosepipe following deflection-regulation polish rod sealer |
| CN204040980U (en) * | 2014-08-13 | 2014-12-24 | 中国石油天然气股份有限公司 | A kind of bellows formula packing box |
| CN204266971U (en) * | 2014-11-14 | 2015-04-15 | 王晓敏 | A kind of blowout preventer |
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| Publication number | Publication date |
|---|---|
| CN106050179A (en) | 2016-10-26 |
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