CN107461169A - A kind of super-pressure fracture acidizing wellhead for production - Google Patents
A kind of super-pressure fracture acidizing wellhead for production Download PDFInfo
- Publication number
- CN107461169A CN107461169A CN201710816384.8A CN201710816384A CN107461169A CN 107461169 A CN107461169 A CN 107461169A CN 201710816384 A CN201710816384 A CN 201710816384A CN 107461169 A CN107461169 A CN 107461169A
- Authority
- CN
- China
- Prior art keywords
- tubing head
- wellhead
- pressure
- super
- connector
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000012856 packing Methods 0.000 claims abstract description 39
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 208000010392 Bone Fractures Diseases 0.000 description 10
- 206010017076 Fracture Diseases 0.000 description 10
- 239000002253 acid Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007921 spray 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
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/01—Sealings characterised by their shape
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of super-pressure fracture acidizing wellhead for production, wellhead assembly includes bottom tubing head, bottom tubing head both sides are communicated with horizontal oil-piping, and set sluice valve A, instrument flange A and set sluice valve B are set gradually on the horizontal oil-piping of the bottom tubing head both sides.The mid diameter of the application sealed packing is less than end diameter, and therefore in extruding, the inwall of connector forms cavity with sealed packing, packing can be pressed further by axially and radially to deform, increase the sealing and open flow of well head, and the drainage pipe of sealing protective device and wellhead assembly cooperates, therefore just effectively increase reached and sealing and prevents the phenomenon of blowout from occurring.Stop valve is used for controlling and protecting pressure gauge, is also used as device, exchanges pressure gauge.
Description
Technical field
The present invention relates to petroleum collection technical field, more particularly to a kind of super-pressure fracture acidizing wellhead for production.
Background technology
Sour acid treatment work is squeezed to stratum being enough to press off under stratum forms crack or the pressure for opening stratum primary fracture
Skill is referred to as fracture acidizing.Fore negative bed and common acid fracturing (or general acid fracturing) can be divided into.Fracture acidizing is mainly used in blocking model
Enclose the Oil/gas Well in relatively depth or hyposmosis area.Acid filling pressure is higher than the fracture acidizing of oily (gas) layer fracture pressure, and people are accustomed to claiming
Be acid fracturing.It is a widely used increasing yield and injection measure of domestic and international oil field LIMESTONE RESERVOIR to be acidified hydraulic pressure.Start to turn into
Important completion means.
Existing wellhead assembly is varied, but sealing property and open flow effect are bad all the time, such as existing well head
The shape of the sealing device of device 1. sealing ring is unreasonable, and sealing effectiveness is undesirable.2. the material selection of sealing ring is unreasonable, work
It is undesirable to make performance.3. sealing ring installation and removal are inconvenient.4. seal box is distributed using cylinder, sealing ring around polished rod
Inequality, be squeezed eccentric wear, reduces its service life.5. there is no tuningout oblique adjusting mechanism, the service life of sealing device is reduced.6. prevent
It is complicated to spray system architecture, it is troublesome in poeration, also it is unfavorable for sealing device and develops to easy direction.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of super-pressure fracture acidizing wellhead for production, sealing property
More preferably.
In order to realize above-mentioned technical purpose, the present invention adopts the following technical scheme that：A kind of super-pressure fracture acidizing producing well
Mouth device, wellhead assembly include bottom tubing head, and bottom tubing head both sides are communicated with horizontal oil-piping, the bottom tubing head
Set sluice valve A, instrument flange A and set sluice valve B are set gradually on the horizontal oil-piping of both sides, is provided with instrument flange A
Stop valve and pressure gauge, in bottom, the top of tubing head is provided with top tubing head, and the both ends of the top tubing head all connect
There is drainage pipe, the lower end of drainage pipe is connected with the horizontal oil-piping of its homonymy, and instrument method is set on the drainage pipe
Blue B and gate valve, stop valve and pressure gauge are also provided with instrument flange B, the top and bottom of the top tubing head all set lock
Valve.
Further, wellhead assembly also includes sealing protective device, centralizer and polished rod, and sealing protective device is arranged on
In the tubing head of bottom, the polished rod is located in top tubing head and bottom tubing head, and centralizer is located on polished rod, and sealing is anti-
Protection unit is also located on polished rod.
Further, sealing protective device includes pressure cap, connector, air cushion, and connector is hollow sleeve, in connector
Side bottom sets air cushion, and polished rod is connected among connector, and sealed packing is set between connector and polished rod, and the air cushion is set
Set in the bottom of sealed packing, between pressure cap and connector and compress the collar, the bottom for compressing the collar is arranged on sealed packing top
End.
Further, the sealing protective device also includes regulating bolt, and the bottom of regulating bolt is from top to bottom successively
Through the lateral part of pressure cap, compress the lateral part of the collar and the top of connector.
Further, sealed packing is made up of upper and lower tapered packing, and the mid diameter of sealed packing is less than end diameter.
Further, the surface overlaying of described gate valve, set sluice valve A, set sluice valve B has hard alloy, and valve rod uses
Anti- sulphur steel is made.
Further, pressure gauge is located between top tubing head and the pressure gauge of horizontal oil-piping.
The present invention technical characterstic and effect be：The mid diameter of the application sealed packing is less than end diameter and therefore squeezed
The inwall of connector forms cavity with sealed packing during pressure, can be pressed further by packing and axially and radially deform, and increases well head
Sealing and open flow, and the drainage pipe of sealing protective device and wellhead assembly cooperates, therefore just effectively reaches
To increase sealing and prevent the phenomenon of blowout from occurring.Stop valve is used for controlling and protecting pressure gauge, also makees device, exchanges pressure
Power table is used.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention.
Fig. 2 is A of the present invention enlarged drawing.
In figure：1 is bottom tubing head；2 be horizontal oil-piping；3 be set sluice valve A；4 be instrument flange A；5 be set pipe closer
Valve B；6 be stop valve；7 be pressure gauge；8 be top tubing head；9 be drainage pipe；10 be instrument flange B；11 be gate valve；12 are
Centralizer；13 be polished rod；14 be pressure cap；15 be connector；16 be air cushion；17 be the compression collar；18 be sealed packing；19 be tune
Save bolt,；20 be upper conical packing；21 be inferior pyramidal packing.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1-2 is refer to, the present invention provides a kind of super-pressure fracture acidizing wellhead for production, under wellhead assembly includes
Portion's tubing head 1, the both sides of bottom tubing head 1 are communicated with horizontal oil-piping 2, on the horizontal oil-piping 2 of the both sides of bottom tubing head 1 successively
Set sluice valve A3, instrument flange A4 and set sluice valve B5 are set, stop valve 6 and pressure gauge 7 are installed on instrument flange A4,
The top of bottom tubing head 1 is provided with top tubing head 8, and the both ends of top tubing head 8 are all connected with drainage pipe 9, drainage tube
The lower end in road 9 is connected with the horizontal oil-piping 2 of its homonymy, and instrument flange B10 and gate valve 11, instrument are set on drainage pipe 9
Stop valve 6 and pressure gauge 7 are also provided with flange B10, the top and bottom of top tubing head 8 all set gate valve 11.
Wellhead assembly also includes sealing protective device 11, centralizer 12 and polished rod 13, and sealing protective device 11 is arranged on
In bottom tubing head 1, polished rod 13 is located in top tubing head 8 and bottom tubing head 1, and centralizer 12 is located on polished rod 13,
Sealing protective device 11 is also located on polished rod 13.Sealing protective device 11 includes pressure cap 14, connector 15, air cushion 16, even
Junctor 15 is hollow sleeve, and the inner lower edge of connector 15 sets air cushion 16, polished rod 13, connector 15 are connected among connector 15
Sealed packing 18 is set between polished rod 13, and air cushion 16 is arranged on the bottom of sealed packing 18, between pressure cap 14 and connector 15
Set and compress the collar 17, the bottom for compressing the collar 17 is arranged on the top of sealed packing 18.
Lid compresses sealed packing 18 by lower gland, and packing is produced and axially and radially deformed, and is close to polished rod 13 and sealing
Luminal wall surface, gap are plugged and reach the purpose of sealing.In addition in sealing device normal work, multi-stage sealed packing 18
Between form multistage pendular ring, be full of lubricant in ring, both played preferable self-lubricating function, play the self-styled work of certain liquid again
With further reinforcement sealing；And because the mid diameter of sealed packing 18 is less than the end diameter therefore connector 15 in extruding
Inwall and sealed packing 18 form cavity, packing can be pressed further by and axially and radially deformed, increase the sealing of well head
Cooperated with the drainage pipe 9 of open flow, and sealing protective device 11 and wellhead assembly, therefore reached increasing with regard to effectively
Add sealing and prevent the phenomenon of blowout from occurring.
Sealing protective device 11 also includes regulating bolt 19, and the bottom of regulating bolt 19 sequentially passes through pressure cap from top to bottom
The top of 14 lateral part, the lateral part for compressing the collar 17 and connector 15.It can increase between pressure cap and connector
Adhesion, to control the seal degree of sealed packing.
Sealed packing 18 is made up of upper and lower tapered packing, and the mid diameter of sealed packing 18 is less than end diameter.And due to
Sealed packing 18) mid diameter be less than end diameter therefore inwall and the sealed packing 18 of connector 15 form sky in extruding
Chamber, packing can be pressed further by and axially and radially deformed, increase the sealing and open flow of well head.
The surface overlaying of gate valve 11, set sluice valve A3, set sluice valve B5 has hard alloy, and valve rod is made of anti-sulphur steel.
Pressure gauge 7 is located between top tubing head 8 and the pressure gauge 7 of horizontal oil-piping 2.
Therefore in summary, the mid diameter of the application sealed packing 18 is less than the end diameter therefore connector in extruding
15 inwall forms cavity with sealed packing 18, can be pressed further by packing and axially and radially deform, increase the sealing of well head
Property and open flow, and the drainage pipe 9 of sealing protective device 11 and wellhead assembly cooperates, therefore just effectively reaches
Increase sealing and prevent the phenomenon of blowout from occurring.Stop valve is used for controlling and protecting pressure gauge, also makees device, exchanges pressure gauge
With.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
- A kind of 1. super-pressure fracture acidizing wellhead for production, it is characterised in that：Wellhead assembly includes bottom tubing head (1), Bottom tubing head (1) both sides are communicated with horizontal oil-piping (2), on the horizontal oil-piping (2) of bottom tubing head (1) both sides according to It is secondary that set sluice valve A (3), instrument flange A (4) and set sluice valve B (5) are set, stop valve (6) is installed on instrument flange A (4) With pressure gauge (7), in bottom, the top of tubing head (1) is provided with top tubing head (8), the both ends of the top tubing head (8) Drainage pipe (9) is all connected with, the lower end of drainage pipe (9) is connected with the horizontal oil-piping (2) of its homonymy, the drainage tube Instrument flange B (10) and gate valve (11) are set on road (9), stop valve (6) and pressure gauge (7) are also provided with instrument flange B (10), The top and bottom of the top tubing head (8) all set gate valve (11).
- A kind of 2. super-pressure fracture acidizing wellhead for production according to claim 1, it is characterised in that：Wellhead assembly is also Include sealing protective device (11), centralizer (12) and polished rod (13), sealing protective device (11) is arranged on bottom tubing head (1) in, the polished rod (13) is located in top tubing head (8) and bottom tubing head (1), and centralizer (12) is located in polished rod (13) on, sealing protective device (11) is also located on polished rod (13).
- A kind of 3. super-pressure fracture acidizing wellhead for production according to claim 2, it is characterised in that：Sealing protection fills Put (11) and include pressure cap (14), connector (15), air cushion (16), connector (15) is hollow sleeve, on the inside of connector (15) Bottom sets air cushion (16), connects polished rod (13) among connector (15), is set between connector (15) and polished rod (13) close Closing disk root (18), the air cushion (16) are arranged on the bottom of sealed packing (18), set between pressure cap (14) and connector (15) The collar (17) is compressed, the bottom for compressing the collar (17) is arranged on sealed packing (18) top.
- A kind of 4. super-pressure fracture acidizing wellhead for production according to claim 3, it is characterised in that：The sealing is anti- Protection unit (11) also includes regulating bolt (19), and the bottom of regulating bolt (19) sequentially passes through the horizontal stroke of pressure cap (14) from top to bottom To part, compress the lateral part of the collar (17) and the top of connector (15).
- A kind of 5. super-pressure fracture acidizing wellhead for production according to claim 3, it is characterised in that：Sealed packing (18) it is made up of upper and lower tapered packing (20,21), the mid diameter of sealed packing (18) is less than end diameter.
- A kind of 6. super-pressure fracture acidizing wellhead for production according to claim 1, it is characterised in that：Described gate valve (11), the surface overlaying for covering sluice valve A (3), set sluice valve B (5) has hard alloy, and valve rod is made of anti-sulphur steel.
- A kind of 7. super-pressure fracture acidizing wellhead for production according to claim 2, it is characterised in that：Pressure gauge (7) Between top tubing head (8) and the pressure gauge (7) of horizontal oil-piping (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816384.8A CN107461169A (en) | 2017-09-12 | 2017-09-12 | A kind of super-pressure fracture acidizing wellhead for production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816384.8A CN107461169A (en) | 2017-09-12 | 2017-09-12 | A kind of super-pressure fracture acidizing wellhead for production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461169A true CN107461169A (en) | 2017-12-12 |
Family
ID=60552350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710816384.8A Pending CN107461169A (en) | 2017-09-12 | 2017-09-12 | A kind of super-pressure fracture acidizing wellhead for production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461169A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397416A (en) * | 2019-08-27 | 2019-11-01 | 中油国际(尼日尔)公司 | A kind of electric pump well head anti-leak high pressure seal |
| CN113622857A (en) * | 2021-08-30 | 2021-11-09 | 江苏益马机械有限公司 | High-pressure anti-corrosion integral wellhead device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2438258C (en) * | 2002-08-27 | 2007-08-21 | Kevin Kimberley | Articulated seal |
| CN201068771Y (en) * | 2007-08-03 | 2008-06-04 | 李洪波 | Self-sealing device for sucker rod |
| CN201443331U (en) * | 2009-05-20 | 2010-04-28 | 辽河石油勘探局 | Multi-functional well head and christmas tree |
| CN201568003U (en) * | 2009-12-25 | 2010-09-01 | 南京伟业机械有限公司 | Ultra-high pressure fracturing and acidizing oil-extracting wellhead device |
| CN201635697U (en) * | 2010-02-05 | 2010-11-17 | 南京伟业机械有限公司 | Fractured and acidized oil extraction wellhead device |
| CN203626696U (en) * | 2014-01-10 | 2014-06-04 | 陈举民 | Sealed packing box for new polish rod |
-
2017
- 2017-09-12 CN CN201710816384.8A patent/CN107461169A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2438258C (en) * | 2002-08-27 | 2007-08-21 | Kevin Kimberley | Articulated seal |
| CN201068771Y (en) * | 2007-08-03 | 2008-06-04 | 李洪波 | Self-sealing device for sucker rod |
| CN201443331U (en) * | 2009-05-20 | 2010-04-28 | 辽河石油勘探局 | Multi-functional well head and christmas tree |
| CN201568003U (en) * | 2009-12-25 | 2010-09-01 | 南京伟业机械有限公司 | Ultra-high pressure fracturing and acidizing oil-extracting wellhead device |
| CN201635697U (en) * | 2010-02-05 | 2010-11-17 | 南京伟业机械有限公司 | Fractured and acidized oil extraction wellhead device |
| CN203626696U (en) * | 2014-01-10 | 2014-06-04 | 陈举民 | Sealed packing box for new polish rod |
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| Title |
|---|
| 中国石油天然气集团公司人事部编: "《采气技师培训教程》", 31 May 2012, 北京：石油工业出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397416A (en) * | 2019-08-27 | 2019-11-01 | 中油国际(尼日尔)公司 | A kind of electric pump well head anti-leak high pressure seal |
| CN110397416B (en) * | 2019-08-27 | 2021-12-10 | 中油国际(尼日尔)公司 | Anti-leakage high-pressure sealing device for electric pump well mouth |
| CN113622857A (en) * | 2021-08-30 | 2021-11-09 | 江苏益马机械有限公司 | High-pressure anti-corrosion integral wellhead device |
| CN113622857B (en) * | 2021-08-30 | 2022-10-21 | 江苏益马机械有限公司 | High-pressure anti-corrosion integral wellhead device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171212 |