CN106677734B - A kind of application method of sealer of oil field well mouth - Google Patents
A kind of application method of sealer of oil field well mouth Download PDFInfo
- Publication number
- CN106677734B CN106677734B CN201710075009.2A CN201710075009A CN106677734B CN 106677734 B CN106677734 B CN 106677734B CN 201710075009 A CN201710075009 A CN 201710075009A CN 106677734 B CN106677734 B CN 106677734B
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- CN
- China
- Prior art keywords
- packing
- teeth
- edge
- rotary steering
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Abstract
The present invention relates to a kind of application methods of sealer of oil field well mouth.Technical solution include connection coupling, eccentric clamp, packing cavity, packing chamber, sealed packing, screw-in set one's teeth on edge, rotary steering body, top hold-down bolt, connection coupling is bolted with eccentric clamp；Packing cavity is pressed in connection coupling top by eccentric clamp, and packing inside cavity is equipped with packing chamber；Packing chamber is connect by the groove on top with rotary steering body, and rotary steering body is enable to rotate freely；Top hold-down bolt is connect by screw thread with rotary steering body；Screw-in, which is set one's teeth on edge, to be connect by protrusion with rotary steering body, and can be moved up and down；Polished rod is intracavitary in packing, and freely up and down moves；Sealed packing is wrapped on polished rod by screwing in set one's teeth on edge.Beneficial effect is: it is not required to carry out stopping well operations when replacing sealed packing, it is easy to operate, and prevent safety and environmental protection risk, improved oil-well time-rate, has prevented that there is great economic benefit because of well of lying caused by adding sealed packing.
Description
Technical field
The present invention relates to a kind of oil field shaft mouth sealing device and method, in particular to a kind of use of sealer of oil field well mouth
Method.
Background technique
Currently, sucker-rod pumping is the main DP technology that oil field uses, well head sealing means for oil prodn. well is that pumping unit must
Indispensable oil pumping polish rod reciprocating motion sealing device.
Common well mouth sealing device is mainly: 1. rubber sluice gate polish rod sealing device, and using earliest, structure is simple, but glue
Plastic valve sealing performance is bad, and maintenance is complicated.2. twin-stage packing polished rod sealer, secondary seal improve sealing than rubber valve
Performance, it is easy to maintenance.3. tower-shaped packing polished rod sealer, increases ball-type bias adjusting function, the oil suitable for wellhead polish rod deflection
Well, it is above-mentioned to come from " oil-gas mining engineer handbook " Sinopec publishing house.
Existing polished rod sealer is being replaced although preferable sealing function can be played when polished rod moves back and forth
It is largely that must stop well, cleaning greasy dirt when sealed packing, not only reduces the rate, influence yield when driving a well of oil well, be easy to cause
Crude oil pollution, complicated for operation, there is a certain security risk, and may cause well of lying when replacement packing, also oil field is given to produce 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 ", main
The de- disconnected sealing three parts of the primary seal and auxiliary seal and polished rod to be made of rubber gate, packing box form.It by by
The auxiliary seal for the packing boxlike with pressing sleeve that upper housing and lower case threaded connection are formed, realizes and fails in primary seal
When, replacement packing is not shut down;Further through the piston being made of sliding block, gum cover, spring, idler wheel 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 rubs, prevents crude oil excessive, extend rate when driving a well.Its
The problem is that: structure is complicated, and cost of manufacture is high, is not promoted the use of always.
Chinese patent literature Publication No. 2734982, patent name be " a kind of Wellhead sealer for oil well ", at least one
A transverse pipe, there is tubing interface that can be matched with oil pipe in transverse pipe, and polished rod and energy can be encased by being equipped in transverse pipe
The split type sealing ring for playing sealing function, is equipped with Packing spring between split type sealing ring and transverse pipe.Present invention tool
There is long service life, safe and reliable, it can be in the case where not shutting down the operating condition for not stopping polished rod motion, in a relatively short period of time
Replaceable split type sealing ring, to be conducive to improve crude oil production efficiency.Itself the problem is that: by Packing spring and
Split type sealing ring, although can not shutdown operation, practical sealing effect is unsatisfactory, leads to disorderly closedown.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, provide a kind of making for sealer of oil field well mouth
With method, it can meet and not stop well when replacing sealed packing, it is easy 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 mentions, including connection coupling, eccentric clamp, packing cavity, packing chamber, sealing
Packing, screw-in 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 equipped with packing chamber；Groove and rotation of the packing chamber by top
Guide way connection, and rotary steering body is enable to rotate freely；Top hold-down bolt is connect by screw thread with rotary steering body；Rotation
Enter to set one's teeth on edge and be connect by protrusion with rotary steering body, and can move up and down；Polished rod is intracavitary in packing, and freely up and down moves；
Sealed packing is wrapped on polished rod by screwing in set one's teeth on edge.
Above-mentioned screw-in is set one's teeth on edge including main body of setting one's teeth on edge, positioning pin, helicla flute, top connection, and the main body of setting one's teeth on edge is equipped with
Packing is directed at the helicla flute on polished rod, body outer surface of setting one's teeth on edge is equipped with positioning pin, and the end for main body of setting one's teeth on edge is equipped with top connection.
The top of above-mentioned packing cavity is columnar structured cavity, and lower part is the cavity of cone structure.
The application method for the sealer of oil field well mouth that the present invention mentions, comprising the following steps:
Step 1: top hold-down bolt is rotated counterclockwise, top hold-down bolt is set to go upward to maximum position by bolt；
Step 2: sealed packing insertion is screwed in the helicla flute set one's teeth on edge, rotary steering body is rotated, rotary steering body drives rotation
Enter rotation of setting one's teeth on edge, so that sealed packing is entered packing using the guiding role of helicla flute intracavitary, and be wrapped on polished rod；Work as screw-in
When to a certain extent, the deboost of sealed packing can force screw-in to set one's teeth on edge uplink；Continuing to rotate rotary steering body makes seal disc
Root constantly enters packing chamber, while also continuous push screws in uplink of setting one's teeth on edge, will be by when screw-in, which is set one's teeth on edge, reaches predetermined stroke
Top hold-down bolt blocks, and stop operating rotary steering body；
Step 3: rotating clockwise top hold-down bolt, is pushed using the compression principle of bolt and screw in downlink of setting one's teeth on edge, due to
Screwing in the lower part set one's teeth on edge has the sealed packing being wrapped on polished rod, so the strength of downlink, which will be changed into, is applied to sealed packing
On pretightning force, realize sealing；
The length of the sealed packing is 2-3m long, after screwing in one, can repeat to add according to the method described above, thus
It realizes and does not stop well requirement when the replacement sealed packing of oil field.
The beneficial effects of the present invention are: rotary steering body of the invention has rotation, importing, substrate hold-down function, pass through screw-in
Repetition of setting one's teeth on edge imports sealed packing and enters packing chamber, realizes and compresses through top hold-down bolt, and sealed packing can be made full of sealing
Chamber and pressure bearing and seal are resistant to dynamic sealing pressure 4MPa, resistance to static seal pressure 16MPa by experiment, because oil well operation back pressure is less than
1.6MPa, therefore, the present invention are not required to carry out stopping well operations when replacing sealed packing, easy to operate, have prevented safety and environmental protection wind
Danger, improves oil-well time-rate, prevents have great economic benefit because of well of lying caused by adding sealed packing.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram of the invention；
Attached drawing 2 is A-A cross-sectional view of the invention；
Attached drawing 3 is the structure chart that screw-in of the invention is set one's teeth on edge；
Attached drawing 4 is the top view that screw-in of the 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 set one's teeth on edge 6, rotation is led
To body 7, top hold-down bolt 8, polished rod 9, main body of setting one's teeth on edge 6.1, positioning pin 6.2, helicla flute 6.3, top connection 6.4.
Specific embodiment
In conjunction with attached drawing 1-2, the invention will be further described:
The sealer of oil field well mouth that the present invention mentions, including connection coupling 1, eccentric clamp 2, packing cavity 3, packing chamber 4,
Sealed packing 5 screws in set one's teeth on edge 6, rotary steering body 7, top hold-down bolt 8, and connection coupling 1 and eccentric clamp 2 pass through bolt and connect
It connects；Packing cavity 3 is pressed in 1 top of connection coupling by eccentric clamp 2, is equipped with packing chamber 4 inside packing cavity 3；Packing chamber 4 passes through
The groove on top is connect with rotary steering body 7, and rotary steering body 7 is enable to rotate freely；Top hold-down bolt 8 passes through screw thread
It is connect with rotary steering body 7；Screw-in, which is set one's teeth on edge, 6 to be connect by protrusion with rotary steering body 7, and can be moved up and down；Polished rod 9 is in disk
In root chamber 4, and freely up and down move；Sealed packing 56 is wrapped on polished rod 9 by screwing in set one's teeth on edge.
Referring to attached drawing 3 and 4, it 6 includes set one's teeth on edge main body 6.1, positioning pin 6.2, helicla flute 6.3, top connection 6.4 that screw-in, which is set one's teeth on edge,
The main body 6.1 of setting one's teeth on edge is equipped with the helicla flute 6.3 packing being directed on polished rod, and the sealed packing 5 that length is 2-3m is logical
It crosses helicla flute and screws in packing cavity 3,6.1 outer surface of main body of setting one's teeth on edge is equipped with positioning pin 6.2, and effect is to guarantee to screw in set one's teeth on edge 6
It can move up and down, cannot rotate；The end of main body of setting one's teeth on edge 6.1 is equipped with top connection 6.4.
In addition, the top of above-mentioned packing cavity 3 is columnar structured cavity, lower part is the cavity of cone structure.
The application method for the sealer of oil field well mouth that the present invention mentions, comprising the following steps:
Step 1: top hold-down bolt 8 is rotated counterclockwise, top hold-down bolt 8 is set to go upward to dominant bit by bolt
It sets；
Step 2: by sealed packing 5 insertion screw in set one's teeth on edge 6 helicla flute, rotate rotary steering body 7,7 band of rotary steering body
It is dynamic to screw in 6 rotations of setting one's teeth on edge, enter sealed packing 5 in packing chamber 4 using the guiding role of helicla flute, and be wrapped in polished rod 9
On；When screwing in a certain extent, the deboost of sealed packing 5 can force screw-in to set one's teeth on edge 6 uplinks；Continue to rotate rotary steering
Body 7 makes sealed packing 5 constantly enter packing chamber 4, while also continuous push screws in 6 uplinks of setting one's teeth on edge, when screw-in is set one's teeth on edge 6 arrival rule
It when determining stroke, will be blocked by top hold-down bolt 8, stop operating rotary steering body 7；
Step 3: rotating clockwise top hold-down bolt 8, is pushed using the compression principle of bolt and screw in 6 downlinks of setting one's teeth on edge, by
Have the sealed packing 5 being wrapped on polished rod 9 in screwing in 6 lower part of setting one's teeth on edge, thus the strength of downlink will be changed into be applied to it is close
Pretightning force on closing disk root 5 realizes sealing；
Wherein, the length of sealed packing 5 is 2-3m long, after screwing in one, can repeat to add according to the method described above, thus
It realizes and does not stop well requirement when the replacement sealed packing of oil field.
Rotary steering body of the invention has rotation, importing, substrate hold-down function, imports sealed packing by screwing in repetition of setting one's teeth on edge
It into packing chamber, realizes and compresses through top hold-down bolt, sealed packing can be made full of seal chamber and pressure bearing and seal, by experiment
It is resistant to dynamic sealing pressure 4MPa, resistance to static seal pressure 16MPa, 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 easy to operate, prevent safety and environmental protection risk, improved oil-well time-rate, has prevented
Because of well of lying caused by adding sealed packing, there is great economic benefit.
Claims (1)
1. a kind of application method of sealer of oil field well mouth, it is characterized in that the following steps are included:
Step 1: top hold-down bolt (8) is rotated counterclockwise, top hold-down bolt (8) is set to go upward to dominant bit by bolt
It sets；
Step 2: sealed packing (5) insertion is screwed in the helicla flute of (6) of setting one's teeth on edge, rotate rotary steering body (7), rotary steering body
(7) it drives and screws in (6) rotation of setting one's teeth on edge, enter sealed packing (5) in packing chamber (4) using the guiding role of helicla flute, and
It is wrapped on polished rod (9)；When screwing in a certain extent, the deboost of sealed packing (5) can force screw-in to set one's teeth on edge on (6)
Row；Continuing to rotate rotary steering body (7) makes sealed packing (5) constantly enter packing chamber (4), while also continuous push screws in
Tooth (6) uplink will be blocked, stop operating rotation when screw-in sets one's teeth on edge (6) arrival predetermined stroke by top hold-down bolt (8)
Guide way (7)；
Step 3: rotating clockwise top hold-down bolt (8), is pushed using the compression principle of bolt and screw in (6) downlink of setting one's teeth on edge, by
There is the sealed packing (5) being wrapped on polished rod (9) in the set one's teeth on edge lower part of (6) of screw-in, is applied so the strength of downlink will be changed into
The pretightning force being added on sealed packing (5) realizes sealing；
The length of the sealed packing (5) is 2-3m, after screwing in one, repeats to add according to the method described above, to realize oil
Do not stop well requirement when sealed packing is replaced in field；
Wherein, sealer of oil field well mouth includes connection coupling (1), eccentric clamp (2), packing cavity (3), packing chamber (4), sealing
Packing (5), screw-in set one's teeth on edge (6), rotary steering body (7), top hold-down bolt (8), and connection coupling (1) and eccentric clamp (2) are logical
It crosses and is bolted；Packing cavity (3) is pressed in connection coupling (1) top by eccentric clamp (2), is equipped with disk inside packing cavity (3)
Root chamber (4)；Packing chamber (4) is connect by the groove on top with rotary steering body (7), and makes rotary steering body (7) can be free
Rotation；Top hold-down bolt (8) is connect by screw thread with rotary steering body (7)；Screw-in set one's teeth on edge (6) by protrusion and rotary steering
Body (7) connection, and can move up and down；Polished rod (9) freely up and down moves in packing chamber (4)；Sealed packing (5) passes through
Screw-in set one's teeth on edge (6) be wrapped on polished rod (9)；
Screw-in set one's teeth on edge (6) include setting one's teeth on edge main body (6.1), positioning pin (6.2), helicla flute (6.3), top connection (6.4), described falls
Tooth main body (6.1), which is equipped with, is directed at the helicla flute (6.3) on polished rod packing, and main body of setting one's teeth on edge (6.1) outer surface is equipped with positioning
It sells (6.2), the end of main body of setting one's teeth on edge (6.1) is equipped with top connection (6.4).
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 CN106677734A (en) | 2017-05-17 |
| CN106677734B true CN106677734B (en) | 2019-01-29 |
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Family Applications (2)
| 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 |
| CN201710075009.2A Active CN106677734B (en) | 2014-07-31 | 2014-07-31 | A kind of application method of sealer of oil field well mouth |
Family Applications Before (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 |
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| CN (2) | CN104153736B (en) |
Families Citing this family (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 |
| CN112523714B (en) * | 2020-12-04 | 2021-09-10 | 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 CN201410371761.8A patent/CN104153736B/en active Active
- 2014-07-31 CN CN201710075009.2A patent/CN106677734B/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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104153736B (en) | 2017-03-15 |
| CN104153736A (en) | 2014-11-19 |
| CN106677734A (en) | 2017-05-17 |
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