CN106677734A - Using method for sealer of well mouth of oil field - Google Patents
Using method for sealer of well mouth of oil field Download PDFInfo
- Publication number
- CN106677734A CN106677734A CN201710075009.2A CN201710075009A CN106677734A CN 106677734 A CN106677734 A CN 106677734A CN 201710075009 A CN201710075009 A CN 201710075009A CN 106677734 A CN106677734 A CN 106677734A
- Authority
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- China
- Prior art keywords
- packing
- teeth
- edge
- screw
- sealed packing
- 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
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012856 packing Methods 0.000 claims abstract description 87
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 10
- 238000010168 coupling process Methods 0.000 abstract description 10
- 238000005859 coupling reaction Methods 0.000 abstract description 10
- 239000003129 oil well Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 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)
- Sealing Devices (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a using method for a sealer of a well mouth of an oil field. The technical scheme comprises a connecting coupling, an eccentric pressing plate, a packing cavity body, a packing cavity, a sealing packing, a screwing-in inversed tooth, a rotary guiding body and an upper portion compression bolt. The connecting coupling and the eccentric pressing plate are connected through a bolt, the packing cavity body is pressed on the upper portion of the connecting coupling by the eccentric pressing plate, and the packing cavity is formed in the packing cavity body. The packing cavity is connected with the rotary guiding body through a groove in the upper portion of the packing cavity to enable the rotary guiding body to freely rotate. The upper portion compression bolt is connected with the rotary guiding body through a thread. The screwing-in inversed tooth is connected with the rotary guiding body through a protrusion and can move up and down. A polish rod is arranged in the packing cavity and freely moves up and down, and the sealing packing is wound on the polish rod through the screwing-in inversed tooth. The using method for the sealer of the well mouth of the oil field has the beneficial effects that when the sealing packing is replaced, well stopping operation is not required, operating is easy, safety and environment-friendly risks are avoided, the time rate of an oil well is increased, a failed well caused due to the fact that the sealing packing is additionally arranged is avoided, and the using method has significant economic benefits.
Description
Technical field
The present invention relates to a kind of oil field shaft mouth sealing device and method, more particularly to a kind of use of sealer of oil field well mouth
Method.
Background technology
At present, sucker-rod pumping is the main DP technology that oil field adopts, and well head sealing means for oil prodn. well is that pumping unit must
Indispensable oil pumping polish rod reciprocating motion sealing device.
Conventional well mouth sealing device is mainly：1. rubber sluice gate polish rod sealing device, applies earliest, simple structure, but glue
Plastic valve sealing property is bad, and maintenance is complicated.2. twin-stage packing polished rod sealer, secondary seal improves sealing than rubber valve
Performance, it is easy to maintenance.3. turriform packing polished rod sealer, increased ball-type bias adjusting function, it is adaptable to the oil of wellhead polish rod deflection
Well, it is above-mentioned from《Oil-gas mining engineer's handbook》Sinopec publishing house.
Existing polished rod sealer, although preferable sealing function can be played when polished rod is moved back and forth, but is being changed
During sealed packing, major part is must to stop well, cleaning greasy dirt, not only reduces rate, the impact yield when driving a well of oil well, is easily caused
There is certain security risk in crude oil pollution, complex operation, and be likely to result in well of lying when changing packing, also oil supply field production band
Carry out certain safe and environment-friendly hidden danger.
Chinese patent literature Publication No. 2450379, patent name is《Multifunctional polish rod sealing device for well head of pumping well》, it is main
The primary seal to be made up of rubber gate, packing box and auxiliary seal and three parts of the de- disconnected sealing of polished rod are constituted.It by by
The auxiliary seal of the packing boxlike with gland that upper shell and lower house threaded connection are formed, realizes in primary seal failure
When, do not shut down replacing packing;Further through the piston being made up of slide block, gum cover, spring, roller etc. for being connected in auxiliary seal lower end
The de- disconnected sealing of formula polished rod, realizes the self-closed well head after polished rod is rubbed, and prevents crude oil excessive, extends rate when driving a well.Its
The problem of presence is：Complex structure, cost of manufacture is high, is not promoted uses always.
Chinese patent literature Publication No. 2734982, patent name is《A kind of Wellhead sealer for oil well》, it at least one
Individual transverse pipe, have in transverse pipe can be matched with oil pipe tubing interface, being provided with transverse pipe can encase polished rod and energy
The split type sealing ring of sealing function is played, Packing spring is installed between split type sealing ring and transverse pipe.Present invention tool
Have long service life, it is safe and reliable the characteristics of, can be in the case where the operating mode for not stopping polished rod motion not be shut down, in the short period of time
Replaceable split type sealing ring, so as to be conducive to improving crude oil production efficiency.Its exist problem be：By Packing spring and
Split type sealing ring, although can not shutdown operation, its actual sealing effectiveness is unsatisfactory, causes disorderly closedown.
The content of the invention
The purpose of the present invention is aiming at the drawbacks described above of prior art presence, there is provided a kind of sealer of oil field well mouth makes
With method, can meet and not stop well when sealed packing is changed, it is simple to operate, and also cost of manufacture is not high, has prevented safety and environmental protection
Risk.
The sealer of oil field well mouth that the present invention is mentioned, including connection coupling, eccentric clamp, packing cavity, packing chamber, sealing
Packing, screw-in are set one's teeth on edge, rotary steering body, top hold-down bolt, and connection coupling is bolted with eccentric clamp；Packing cavity
Connection coupling top is pressed in by eccentric clamp, packing inside cavity is provided with packing chamber；Packing chamber is by the groove on top and rotation
Guide way connects, and rotary steering body is rotated freely；Top hold-down bolt is connected by screw thread with rotary steering body；Rotation
Enter to set one's teeth on edge and be connected with rotary steering body by projection, and can move up and down；Polished rod is freely up and down moved in packing intracavity；
Sealed packing is set one's teeth on edge by screw-in and is wrapped on polished rod.
Above-mentioned screw-in is set one's teeth on edge including main body of setting one's teeth on edge, alignment pin, helicla flute, top connection, and described main body of setting one's teeth on edge is provided with
Helicla flute packing being directed on polished rod, body outer surface of setting one's teeth on edge is provided with alignment pin, and the end of main body of setting one's teeth on edge is provided with top connection.
The top of above-mentioned packing cavity is columnar structured cavity, and bottom is the cavity of cone structure.
The using method of the sealer of oil field well mouth that the present invention is mentioned, comprises the following steps：
The first step：By top hold-down bolt rotate counterclockwise, top hold-down bolt is set to go upward to maximum position by bolt；
Second step：Sealed packing is inserted and screws in the helicla flute set one's teeth on edge, rotate rotary steering body, rotary steering body drives screw-in to fall
Tooth rotates, and makes sealed packing enter into packing intracavity using spiral fluted guide effect, and is wrapped on polished rod；When being screwed into one
When determining degree, it is up that the deboost of sealed packing can force screw-in to set one's teeth on edge；Being rotated further rotary steering body makes sealed packing not
It is disconnected to enter packing chamber, while it is up also constantly to promote screw-in to set one's teeth on edge, when screw-in sets one's teeth on edge arrival predetermined stroke, will be by top
Hold-down bolt is blocked, and stop operating rotary steering body；
3rd step：Turn clockwise top hold-down bolt, promotes screw-in to set one's teeth on edge using the compression principle of bolt descending, due to screwing in
The sealed packing being wrapped on polished rod is arranged at the bottom set one's teeth on edge, so descending strength will be changed into being applied on sealed packing
Pretightning force, realizes sealing；
The length of described sealed packing is 2-3m length, after screwing in one, can repeatedly be added according to the method described above, so as to realize
Do not stop well requirement when sealed packing is changed in oil field.
The invention has the beneficial effects as follows：The rotary steering body of the present invention possesses rotation, importing, substrate hold-down function, by screwing in
Repetition of setting one's teeth on edge imports sealed packing and enters packing chamber, and Jing tops hold-down bolt is realized compressing, and can make sealed packing full of sealing
Chamber and pressure bearing and seal, through experiment dynamic sealing pressure 4MPa, the pressure of resistance to static seal 16MPa are resistant to, because oil well operation back pressure is less than
1.6MPa, therefore, the present invention is not required to carry out stopping well operations when sealed packing is changed, simple to operate, has prevented safety and environmental protection wind
Danger, improves oil-well time-rate, prevents the well of lying because adding sealed packing to cause, with great economic benefit.
Description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the A-A sectional views of the present invention；
Accompanying drawing 3 is the structure chart that the screw-in of the present invention is set one's teeth on edge；
Accompanying drawing 4 is the top view that the screw-in of the present invention is set one's teeth on edge；
In figure：Connection coupling 1, eccentric clamp 2, packing cavity 3, packing chamber 4, sealed packing 5, screw-in are set one's teeth on edge 6, rotary steering body
7th, top hold-down bolt 8, polished rod 9, main body of setting one's teeth on edge 6.1, alignment pin 6.2, helicla flute 6.3, top connection 6.4.
Specific embodiment
With reference to accompanying drawing 1-2, the invention will be further described：
The sealer of oil field well mouth that the present invention is mentioned, including connection coupling 1, eccentric clamp 2, packing cavity 3, packing chamber 4, sealing
Packing 5, screw-in are set one's teeth on edge 6, rotary steering body 7, top hold-down bolt 8, and connection coupling 1 is bolted with eccentric clamp 2；Disk
Root cavity 3 is pressed in the top of connection coupling 1 by eccentric clamp 2, and packing chamber 4 is provided with inside packing cavity 3；Packing chamber 4 passes through top
Groove be connected with rotary steering body 7, and rotary steering body 7 is rotated freely；Top hold-down bolt 8 is by screw thread and rotation
Turn guide way 7 to connect；Screw-in is set one's teeth on edge and 6 is connected with rotary steering body 7 by projection, and can be moved up and down；Polished rod 9 is in packing chamber
In 4, and freely up and down move；Sealed packing 5 is set one's teeth on edge by screw-in and 6 is wrapped on polished rod 9.
Referring to the drawings 3 and 4, screw-in sets one's teeth on edge 6 including set one's teeth on edge main body 6.1, alignment pin 6.2, helicla flute 6.3, top connection 6.4,
Described main body 6.1 of setting one's teeth on edge is provided with the helicla flute 6.3 packing being directed on polished rod, and length is led to for the sealed packing 5 of 2-3m
Cross helicla flute and screw in packing cavity 3, the outer surface of main body of setting one's teeth on edge 6.1 is provided with alignment pin 6.2, and its effect is to ensure that screw-in is set one's teeth on edge 6
Can move up and down, it is impossible to rotate；The end of main body of setting one's teeth on edge 6.1 is provided with top connection 6.4.
In addition, the top of above-mentioned packing cavity 3 is columnar structured cavity, bottom is the cavity of cone structure.
The using method of the sealer of oil field well mouth that the present invention is mentioned, comprises the following steps：
The first step：By the rotate counterclockwise of top hold-down bolt 8, top hold-down bolt 8 is set to go upward to maximum position by bolt；
Second step：Sealed packing 5 is inserted screw in set one's teeth on edge 6 helicla flute, rotate rotary steering body 7, rotary steering body 7 drives rotation
Enter 6 rotations of setting one's teeth on edge, sealed packing 5 is entered in packing chamber 4 using spiral fluted guide effect, and be wrapped on polished rod 9；When
When screwing in a certain extent, it is 6 up that the deboost of sealed packing 5 can force screw-in to set one's teeth on edge；Being rotated further rotary steering body 7 makes
Sealed packing 5 constantly enters packing chamber 4, while it is 6 up also constantly to promote screw-in to set one's teeth on edge, when screw-in is set one's teeth on edge 6 arrival regulation rows
Cheng Shi, will be blocked by top hold-down bolt 8, and stop operating rotary steering body 7；
3rd step：Turn clockwise top hold-down bolt 8, promotes screw-in to set one's teeth on edge using the compression principle of bolt 6 descending, due to rotation
The sealed packing 5 being wrapped on polished rod 9 is arranged at enter to set one's teeth on edge 6 bottom, so descending strength will be changed into is applied to seal disc
Pretightning force on root 5, realizes sealing；
Wherein, the length of sealed packing 5 is 2-3m length, after screwing in one, can repeatedly be added according to the method described above, so as to realize
Do not stop well requirement when sealed packing is changed in oil field.
The rotary steering body of the present invention possesses rotation, importing, substrate hold-down function, and by screwing in repetition of setting one's teeth on edge sealed packing is imported
Into packing chamber, Jing tops hold-down bolt is realized compressing, and sealed packing can be made full of annular seal space and pressure bearing and seal, through experiment
Dynamic sealing pressure 4MPa, the pressure of resistance to static seal 16MPa are resistant to, because oil well operation back pressure is less than 1.6MPa, therefore, the present invention is more
It is not required to carry out stopping well operations when changing sealed packing, it is simple to operate, prevent safety and environmental protection risk, oil-well time-rate is improve, prevent
Because of the well of lying for adding sealed packing to cause, with great economic benefit.
Claims (1)
1. a kind of using method of sealer of oil field well mouth, is characterized in that comprising the following steps：
The first step：By top hold-down bolt（8）Rotate counterclockwise, by bolt top hold-down bolt is made（8）Go upward to dominant bit
Put；
Second step：By sealed packing（5）Insertion screw-in is set one's teeth on edge（6）Helicla flute, rotate rotary steering body（7）, rotary steering body
（7）Screw-in is driven to set one's teeth on edge（6）Rotation, using spiral fluted guide effect sealed packing is made（5）Enter into packing chamber（4）It is interior, and
It is wrapped in polished rod（9）On；When screwing in a certain extent, sealed packing（5）Deboost screw-in can be forced to set one's teeth on edge（6）On
OK；It is rotated further rotary steering body（7）Make sealed packing（5）Constantly enter packing chamber（4）, while also constantly promoting screw-in to fall
Tooth（6）It is up, when screw-in is set one's teeth on edge（6）When reaching predetermined stroke, will be by top hold-down bolt（8）Block, stop operating rotation
Guide way（7）；
3rd step：Turn clockwise top hold-down bolt（8）, promote screw-in to set one's teeth on edge using the compression principle of bolt（6）It is descending, by
Set one's teeth on edge in screw-in（6）Bottom be wrapped in polished rod（9）On sealed packing（5）, so descending strength will be changed into applying
It is added in sealed packing（5）On pretightning force, realize sealing；
Described sealed packing（5）Length be 2-3m, after screwing in one, repeatedly add according to the method described above, so as to realize oil
Do not stop well requirement when sealed packing is changed in field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075009.2A CN106677734B (en) | 2014-07-31 | 2014-07-31 | A kind of application method of sealer of oil field well mouth |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371761.8A CN104153736B (en) | 2014-07-31 | 2014-07-31 | A kind of side-feeding type does not stop well wellhead sealing device |
| CN201710075009.2A CN106677734B (en) | 2014-07-31 | 2014-07-31 | A kind of application method of sealer of oil field well mouth |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371761.8A Division CN104153736B (en) | 2014-07-31 | 2014-07-31 | A kind of side-feeding type does not stop well wellhead sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106677734A true CN106677734A (en) | 2017-05-17 |
| CN106677734B CN106677734B (en) | 2019-01-29 |
Family
ID=51879347
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710075009.2A Active CN106677734B (en) | 2014-07-31 | 2014-07-31 | A kind of application method of sealer of oil field well mouth |
| CN201410371761.8A Active CN104153736B (en) | 2014-07-31 | 2014-07-31 | A kind of side-feeding type does not stop well wellhead sealing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371761.8A Active CN104153736B (en) | 2014-07-31 | 2014-07-31 | A kind of side-feeding type does not stop well wellhead sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106677734B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442898A (en) * | 2018-03-28 | 2018-08-24 | 柴志君 | Well head sealing means for oil prodn. well |
| CN112523714A (en) * | 2020-12-04 | 2021-03-19 | 牡丹江力能石油工具有限公司 | High-pressure wear-resistant anti-corrosion automatic deviation-adjusting wellhead sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1740621A1 (en) * | 1990-06-27 | 1992-06-15 | Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических методов исследований, испытания и контроля нефтегазоразведочных скважин | Wellhead sealing device |
| US6289993B1 (en) * | 1999-06-21 | 2001-09-18 | L. Murray Dallas | Blowout preventer protector and setting tool |
| CN200989177Y (en) * | 2006-11-09 | 2007-12-12 | 马瑞田 | Polishing rod sealing device |
| CN201024953Y (en) * | 2007-04-07 | 2008-02-20 | 李方明 | Multi-functional automatic deviation adjustment nude pole sealer |
| CN201103367Y (en) * | 2007-11-12 | 2008-08-20 | 王建平 | Shaft mouth swing type sealing device |
| CN201771449U (en) * | 2010-08-22 | 2011-03-23 | 付蕾 | Improved pumping well polish rod clamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693534A (en) * | 1984-09-17 | 1987-09-15 | Seaboard Wellhead Control, Inc. | Electric fed-thru connector assembly |
| CN2791239Y (en) * | 2004-04-22 | 2006-06-28 | 新疆石油管理局采油工艺研究院 | Progressive polish rod sealer |
| CN203347728U (en) * | 2013-05-28 | 2013-12-18 | 郭友华 | Sealing device of oil pumping polish rod of pumping well |
| CN203570250U (en) * | 2013-11-11 | 2014-04-30 | 吴刚 | High-temperature and high-pressure integrated polish rod sealer |
| CN203978363U (en) * | 2014-07-31 | 2014-12-03 | 张红卫 | A kind of side-feeding type does not stop well wellhead sealing device |
-
2014
- 2014-07-31 CN CN201710075009.2A patent/CN106677734B/en active Active
- 2014-07-31 CN CN201410371761.8A patent/CN104153736B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1740621A1 (en) * | 1990-06-27 | 1992-06-15 | Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических методов исследований, испытания и контроля нефтегазоразведочных скважин | Wellhead sealing device |
| US6289993B1 (en) * | 1999-06-21 | 2001-09-18 | L. Murray Dallas | Blowout preventer protector and setting tool |
| CN200989177Y (en) * | 2006-11-09 | 2007-12-12 | 马瑞田 | Polishing rod sealing device |
| CN201024953Y (en) * | 2007-04-07 | 2008-02-20 | 李方明 | Multi-functional automatic deviation adjustment nude pole sealer |
| CN201103367Y (en) * | 2007-11-12 | 2008-08-20 | 王建平 | Shaft mouth swing type sealing device |
| CN201771449U (en) * | 2010-08-22 | 2011-03-23 | 付蕾 | Improved pumping well polish rod clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442898A (en) * | 2018-03-28 | 2018-08-24 | 柴志君 | Well head sealing means for oil prodn. well |
| CN112523714A (en) * | 2020-12-04 | 2021-03-19 | 牡丹江力能石油工具有限公司 | High-pressure wear-resistant anti-corrosion automatic deviation-adjusting wellhead sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104153736A (en) | 2014-11-19 |
| CN106677734B (en) | 2019-01-29 |
| CN104153736B (en) | 2017-03-15 |
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