CN108412448A - Micro- profit two-restriction double-seal double wellhead assembly - Google Patents
Micro- profit two-restriction double-seal double wellhead assembly Download PDFInfo
- Publication number
- CN108412448A CN108412448A CN201810594202.1A CN201810594202A CN108412448A CN 108412448 A CN108412448 A CN 108412448A CN 201810594202 A CN201810594202 A CN 201810594202A CN 108412448 A CN108412448 A CN 108412448A
- Authority
- CN
- China
- Prior art keywords
- packing
- packing box
- double
- cap
- blowout preventer
- 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.)
- Withdrawn
Links
- 238000012856 packing Methods 0.000 claims abstract description 68
- 239000000945 filler Substances 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 238000007789 sealing Methods 0.000 description 10
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process 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
The present invention relates to a kind of micro- profit two-restriction double-seal double wellhead assemblies.It mainly solves the problems, such as existing wellhead assembly packing easy to leak, take plus packing is inconvenient, deflection-regulating range is small.It is characterized in that：The packing box（8）Top is threadedly coupled packing box pressing cap（7）, packing box pressing cap（7）On be fixed with tommy bar（5）, the packing box pressing cap（7）Top is equipped with groove, and groove is built-in with blanket pad（4）, packing box pressing cap（7）Top outer is threadedly coupled oil pocket pressure cap（3）, oil pocket pressure cap（3）On be provided with oil filler point（2）.Micro- profit two-restriction double-seal double wellhead assembly good airproof performance, takes plus packing is convenient, and deflection-regulating range is big, and lubricity is good, reduces the abrasion of packing and polished rod.
Description
Technical field
The present invention relates to oilfield, specifically a kind of micro- profit two-restriction double-seal double wellhead assembly.
Background technology
The common wellhead assembly in oil field generally requires while having the function of sealing, tuningout, but current wellhead sealing disk
Root poor sealing, the easy to leak after long-play, while taking and adding packing time-consuming and laborious；Deflection-regulating device of well head deflection-regulating range simultaneously
It is small.
Invention content
Add packing inconvenience, deflection-regulating range small to overcome the shortcomings of existing wellhead assembly packing easy to leak, take, this hair
A kind of micro- profit two-restriction double-seal double wellhead assembly of bright offer, micro- profit two-restriction double-seal double wellhead assembly good airproof performance take and add disk
Root is convenient, and deflection-regulating range is big, and lubricity is good, reduces the abrasion of packing and polished rod.
The technical scheme is that：A kind of micro- profit two-restriction double-seal double wellhead assembly, including packing box, inside packing box
It is equipped with packing, and packing top is equipped with packing pressure cap, the packing box top is threadedly coupled packing box pressing cap, on packing box pressing cap
It is fixed with tommy bar, the packing box pressing cap top is equipped with groove, and groove is built-in with blanket pad, packing box pressing cap top outer screw thread
Oil pocket pressure cap is connected, oil filler point is provided on oil pocket pressure cap；
The packing box bottom thread connects two-way blowout preventer shell, and packing bottom is pressed in two-way blowout preventer case top, described
Two-way blowout preventer housing bottom is threadedly coupled eccentric bushing, nylon jacket is equipped with inside eccentric bushing, and eccentric bushing is relative to polished rod bias
Setting, eccentric bushing bottom is equipped with lower catch hoop head pedestal, and lower catch hoop head chassis interior is provided with eccentric orfice, the lower catch hoop head pedestal
Top is threadedly coupled pedestal pressure cap, and is provided with eccentric orfice on pedestal pressure cap.
The two-way blowout preventer enclosure interior is equipped with the pier of resistance to factice, and the Dun Zhongxinchu of resistance to factice is contacted with polished rod, the pier of resistance to factice
It is interior to be equipped with piston, it is connected with leading screw, leading screw external connection nut on piston, and nut is fixed on two-way blowout preventer shell.
The present invention has the advantages that：Due to taking said program, which uses Bidirectional compacting packing, makes
It must take plus packing is convenient, packing_seal is good；By filling lubricating oil on blanket pad, polished rod is lubricated, it is possible to reduce
The abrasion of polished rod, avoids dust from entering, and extends polished rod service life.Using the left and right pier of resistance to factice two way seal well head, enhance
Sealing performance.Well head offset protects polished rod using dual adjusting deviation device to considerably increase deflection-regulating range.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Oil sealing screw on 1- in figure, the upper oil filler points of 2-, 3- oil pocket pressure caps, 4- blanket pads, 5- tommy bars, 6- packing pressure caps, 7-
Packing box pressing cap, 8- packing boxs, 9- packings, the two-way blowout preventer shells of 10-, oil sealing screw under 11-, oil filler point under 12-, 13- spiral shells
Mother, 14- leading screws, 15- pistons, the 16- piers of resistance to factice, 17- eccentric bushings, 18- pedestal pressure caps, 19- nylon jackets, 20- lower catch hoop heads bottom
Seat.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of micro- profit two-restriction double-seal double wellhead assembly, including packing box 8 are equipped with packing 9 inside packing box 8,
And 9 top of packing is equipped with packing pressure cap 6,8 top of the packing box is threadedly coupled packing box pressing cap 7,7 compression plate of packing box pressing cap
On root pressure cap 6, and 7 both sides of packing box pressing cap are fixed with tommy bar 5.7 top of the packing box pressing cap is equipped with groove, and groove is built-in with
Blanket pad 4,7 top outer of packing box pressing cap are threadedly coupled oil pocket pressure cap 3, oil filler point 2, upper oiling are provided on oil pocket pressure cap 3
Upper oil sealing screw 1 is connected on hole 2.This structure of packing box rotates tommy bar 5, packing when needing replacing packing after packing abrasion
Box pressing cap 7 can compress downwards packing pressure cap 6, to compress packing by top；Meanwhile packing box pressing cap 7 also drives 8 turns of packing box
It is dynamic, so that packing box 8 is moved down, to make the two-way blowout preventer shell 10 of bottom hold out against packing upwards, realizes Bidirectional compacting disk
Root achievees the effect that fast tight quick-release, keeps packing dismounting more convenient.Lubricating oil can be noted into blanket pad 4 by upper oil filler point 2,
In this way when polished rod motion to herein when, blanket pad 4 can play polished rod lubricating action, reduce friction coefficient, high lubricating effect.
Blanket pad 4 also acts as sealing function simultaneously, and maximum possible avoids dust entrance, extends the use longevity of polished rod and packing
Life.
8 bottom thread of the packing box connects two-way blowout preventer shell 10, and 9 bottom of packing is pressed in two-way blowout preventer shell 10
Top.The 10 inside both sides of two-way blowout preventer shell are equipped with the pier of resistance to factice 16 respectively, and the pier of resistance to factice connects at 16 center with polished rod
Touch, polished rod is wrapped in circular ring shape in, piston 15 is equipped in the pier of resistance to factice 16, leading screw 14, leading screw 14 are connected on piston 15
External connection nut 13, and nut 13 is fixed on two-way blowout preventer shell 10, it can be with piston 15 by rotational lead screw 14
It is moved to center, to make the pier of resistance to factice 16 be pressed on polished rod.The Dun16Chu of resistance to factice is corresponded on two-way blowout preventer shell 10
It is provided with lower oil filler point 12, and connects lower oil sealing screw 11 on lower oil filler point 12, it can be by lower oil filler point 12 to the pier of resistance to factice 16
Upper oiling increases lubricity.The device uses two-way shut-in well, and locking property is good, ensure that sealing performance.
Two-way 10 bottom thread of blowout preventer shell connects eccentric bushing 17, and nylon jacket 19 is equipped with inside eccentric bushing 17, and
The outer diameter of eccentric bushing 17 is relative to polished rod eccentric setting.17 bottom of eccentric bushing is equipped with lower catch hoop head pedestal 20, and lower catch hoop head bottom
It is provided with eccentric orfice inside seat 20, equally, 20 outer diameter of lower catch hoop head pedestal is also set for the eccentric relative to polished rod.The lower catch hoop head
20 top of pedestal is threadedly coupled pedestal pressure cap 18, and pedestal pressure cap 18 is pressed on eccentric bushing 17, and is provided with bias on pedestal pressure cap 18
Hole.This eccentric structure of the wellhead assembly, one side lower catch hoop head pedestal 20 play the role of tuningout, another aspect eccentric bushing 17
It also acts as tuningout to act on, the tuningout distance of adjusting deviation device is accumulative at two, makes deflection-regulating range further increase, lateral tuningout distance can
Reach ± 15mm, is far longer than the adjustable extent of currently used deflection-regulating device of well head.Nylon jacket 19 is arranged in 17 inside of eccentric bushing,
Rigidity friction between parts, reinforces the protection to polished rod.Simultaneously as adjusting deviation device is below shut-in well mechanism, it is ensured that
Polished rod is in center always, and then has prevented leakage phenomenon present in the valve operation of pass.
Claims (2)
1. a kind of micro- profit two-restriction double-seal double wellhead assembly, including packing box（8）, packing box（8）Inside is equipped with packing（9）, and
Packing（9）Top is equipped with packing pressure cap（6）, it is characterised in that：The packing box（8）Top is threadedly coupled packing box pressing cap（7）,
Packing box pressing cap（7）On be fixed with tommy bar（5）, the packing box pressing cap（7）Top is equipped with groove, and groove is built-in with blanket pad
（4）, packing box pressing cap（7）Top outer is threadedly coupled oil pocket pressure cap（3）, oil pocket pressure cap（3）On be provided with oil filler point（2）；
The packing box（8）Bottom thread connects two-way blowout preventer shell（10）, packing（9）Bottom is pressed in two-way blowout preventer shell
（10）Top, the two-way blowout preventer shell（10）Bottom thread connects eccentric bushing（17）, eccentric bushing（17）Inside is equipped with nylon
Set（19）, and eccentric bushing（17）Relative to polished rod eccentric setting, eccentric bushing（17）Bottom is equipped with lower catch hoop head pedestal（20）, and under
Hoop pedestal（20）Inside is provided with eccentric orfice, the lower catch hoop head pedestal（20）Top is threadedly coupled pedestal pressure cap（18）, and
Pedestal pressure cap（18）On be provided with eccentric orfice.
2. micro- profit two-restriction double-seal double wellhead assembly according to claim 1, it is characterised in that：The two-way blowout preventer shell
Body（10）Inside is equipped with the pier of resistance to factice（16）, the pier of resistance to factice（10）It is contacted with polished rod at center, the pier of resistance to factice（16）Interior be equipped with is lived
Plug（15）, piston（15）On be connected with leading screw（14）, leading screw（14）External connection nut（13）, and nut（13）It is fixed on two-way
Blowout preventer shell（10）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594202.1A CN108412448A (en) | 2018-06-11 | 2018-06-11 | Micro- profit two-restriction double-seal double wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594202.1A CN108412448A (en) | 2018-06-11 | 2018-06-11 | Micro- profit two-restriction double-seal double wellhead assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412448A true CN108412448A (en) | 2018-08-17 |
Family
ID=63141675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810594202.1A Withdrawn CN108412448A (en) | 2018-06-11 | 2018-06-11 | Micro- profit two-restriction double-seal double wellhead assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852377A (en) * | 2020-07-20 | 2020-10-30 | 席小平 | Wellhead assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971758Y (en) * | 2006-06-01 | 2007-11-07 | 胜利油田天人机械制造有限责任公司 | Sealer for wellhead polish rod of pumping well |
| CN201214995Y (en) * | 2008-05-23 | 2009-04-01 | 张忠江 | Sucker rod blowout preventer for polished rod for oilfield |
| CN201771461U (en) * | 2010-07-06 | 2011-03-23 | 李红波 | Pollution prevention device and oil exploitation system for oil exploitation |
| CN202628016U (en) * | 2012-07-10 | 2012-12-26 | 中国石油天然气股份有限公司 | Oil pumping motor-pumped well head lubricating, blowout prevention and three-stage sealing device |
| CN104747114A (en) * | 2015-02-13 | 2015-07-01 | 大庆润欣石化科技有限公司 | Synchronization wellhead adjusting and sealing device |
| CN204941428U (en) * | 2015-09-25 | 2016-01-06 | 王克新 | Self lubricating offset packer box |
| CN205036339U (en) * | 2015-08-25 | 2016-02-17 | 中国石油化工股份有限公司 | Sucker rod blowout preventer |
| CN208534443U (en) * | 2018-06-11 | 2019-02-22 | 大庆市鹏翔石油科技有限公司 | Micro- profit two-restriction double-seal double wellhead assembly |
-
2018
- 2018-06-11 CN CN201810594202.1A patent/CN108412448A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971758Y (en) * | 2006-06-01 | 2007-11-07 | 胜利油田天人机械制造有限责任公司 | Sealer for wellhead polish rod of pumping well |
| CN201214995Y (en) * | 2008-05-23 | 2009-04-01 | 张忠江 | Sucker rod blowout preventer for polished rod for oilfield |
| CN201771461U (en) * | 2010-07-06 | 2011-03-23 | 李红波 | Pollution prevention device and oil exploitation system for oil exploitation |
| CN202628016U (en) * | 2012-07-10 | 2012-12-26 | 中国石油天然气股份有限公司 | Oil pumping motor-pumped well head lubricating, blowout prevention and three-stage sealing device |
| CN104747114A (en) * | 2015-02-13 | 2015-07-01 | 大庆润欣石化科技有限公司 | Synchronization wellhead adjusting and sealing device |
| CN205036339U (en) * | 2015-08-25 | 2016-02-17 | 中国石油化工股份有限公司 | Sucker rod blowout preventer |
| CN204941428U (en) * | 2015-09-25 | 2016-01-06 | 王克新 | Self lubricating offset packer box |
| CN208534443U (en) * | 2018-06-11 | 2019-02-22 | 大庆市鹏翔石油科技有限公司 | Micro- profit two-restriction double-seal double wellhead assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852377A (en) * | 2020-07-20 | 2020-10-30 | 席小平 | Wellhead assembly |
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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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200121 Address after: No.34, group 20, Yanlun village, Danan Town, Xinghua City, Taizhou City, Jiangsu Province Applicant after: Zhu Hong Address before: 163000 Huasheng European city, 4-4-802, Daqing, Heilongjiang Applicant before: DAQING PENGXIANG PETROLEUM TECHNOLOGY Co.,Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180817 |