CN106194052A - High-performance nipple special buckle oil well pipe metal to metal seal structure - Google Patents
High-performance nipple special buckle oil well pipe metal to metal seal structure Download PDFInfo
- Publication number
- CN106194052A CN106194052A CN201610802106.2A CN201610802106A CN106194052A CN 106194052 A CN106194052 A CN 106194052A CN 201610802106 A CN201610802106 A CN 201610802106A CN 106194052 A CN106194052 A CN 106194052A
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- Prior art keywords
- single hop
- sealing
- sealing contact
- contact position
- seal
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- 239000002184 metal Substances 0.000 title claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000003129 oil well Substances 0.000 title claims abstract description 29
- 210000002445 nipple Anatomy 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 160
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011084 recovery 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0423—Threaded with plural threaded sections, e.g. with two-step threads
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Gasket Seals (AREA)
- Earth Drilling (AREA)
Abstract
The present invention is for high-performance nipple special buckle oil well pipe metal to metal seal structure, the single hop of this structure is in sealing contact position and body single hop is in sealing contact position according to body male end front end wall thickness change, it is in sealing contact position and can obtain single hop sealing structure to multistage sealing structure, it is in sealing contact position and body box thread at single hop to seal roof platform shoulder wedge angle position uses the control structure of opening and not opening, the sealing position making box cupling female end seal position and body male end is adjacent to, the body male thread of body male end and box cupling female end seals to be takeed on roof platform, body box thread seals to be takeed on top roof platform.Provide the benefit that this structure Multi-level sealing structure forms multiple sealing protection, it is ensured that Korrosionsmedium can not penetrate into screw thread, it is to avoid is encroached on by corrosive medium, extend oil well pipe service life.Have 4 sections of male and female end sealing surfaces and cross the sealing contact stress maximum won at 1200～1400 MPas, and there is the contact length of stress value point more than 12mm.Contact area is big, is more uniformly stressed rationally.
Description
Technical field
The present invention relates to high-performance nipple special buckle oil well pipe metal to metal seal structure, it is adaptable to there is oil gas
In the recovery process of field, mine gas pressure is high, has the oil field user under the conditions of rigors hole condition to sealing property and uses.
Background technology
During the most threaded special buckle oil well pipe uses, owing to oil and gas reserve resource is fewer and feweri, exploitation
Geologic condition more and more severe, there is various corrosive medium such as H2S and CO2 gas, CL ion in down-hole in addition, these corrosion
The existence of medium, if As time goes on single hop seal failure, corrosive medium can be along leakage channel gradually toward in screw thread
Portion invades, constantly corrosion body and box cupling screw thread position so that the sealability of oil well pipe declines, under the service life of oil well pipe
Fall.After oil well pipe seal failure, the internal natural gas of oil well and Oil spills, if natural gas leaking can cause great person wound
Die the time, if Oil spills can cause great marine environmental pollution.For this by the optimization to seal with screwed joint structure,
It is badly in need of developing novel seal multistage compound sealing structure form.
Summary of the invention
It is an object of the invention to, based on Tianjin Steel Tube Group Co., Ltd's existing special screw-threaded oil well pipes structure, pass through
Existing special thread jointing is sealed the optimization of structure, develops high-performance nipple special buckle oil well pipe metal to gold
Belong to and seal structure.It is applicable to down-hole air pressure high, harsh to seal request, it is to avoid single hop seals structural failure post-etching gas and leads to
Cross leakage channel and enter threaded interior so that screw thread damages, reduce oil well pipe service life.
For realizing above-mentioned purpose, the technical solution used in the present invention is for high-performance nipple special buckle oil well pipe
Metal to metal seal structure, wherein: this structure includes mutual twist-on and is in sealing contact the box cupling female end box cupling single hop behind top
The body single hop of position and body male end is in sealing contact position, and single hop is in sealing contact position and body single hop is in sealing contact position root
According to body male end front end wall thickness change, be in sealing contact position can obtain single hop seal structure to multistage seal structure, while exist
Described single hop is in sealing contact position and body box thread and seals roof platform shoulder wedge angle position uses the control of opening and not opening tie
Structure, the sealing position making box cupling female end seal position and body male end is adjacent to, the body male thread of body male end and box cupling female end
Seal and roof platform shoulder, body box thread are sealed and take on roof platform to top.
And be in sealing contact the body single hop of position and body male end by box cupling female end single hop and be in sealing contact the sealing at position
Cross in the range of face length degree L and win contact realization, on the basis of ensureing that body male end nose thickness is more than 5mm, will seal according to length L
Structure is divided into multistage form by single hop, and sealing surface length uses single hop to seal structure in 10mm, and seal length L is more than 10mm
Rear employing multistage seals structure.
The effect of the present invention is the optimization for TP series screw thread special buckle type of oil well tube seal structure, in use mistake
Journey forms multiple sealing by Multi-level sealing structure protect, it is ensured that Korrosionsmedium can not penetrate into screw thread, it is to avoid by corruption
The infringement of erosion medium, extends oil well pipe service life.The sealing position of this structure is sealed to multistage from single hop and seals structure, twist-on
Rear sealing can produce the sealing effectiveness of multi-pass, effectively blocks corrosion leakage channel, and box cupling and body screw thread position are protected
Protect.Have 4 sections of male and female end sealing surfaces and cross the seal form contact stress maximum won between 1200～1400 MPas, and horizontal seat
Mark has the contact length of stress value point more than 12mm.Being substantially better than single hop male and female end sealing surface and cross the form of winning, contact area is more
Greatly, it is more uniformly stressed rationally.
Accompanying drawing explanation
Fig. 1 is that the present invention seals structure nose sealing surface length L and thickness t1 is intended to；
Fig. 2 is that the present invention seals constructive embodiment one schematic diagram；
Fig. 3 is that the present invention seals constructive embodiment two schematic diagram；
Fig. 4 is that the present invention seals constructive embodiment three schematic diagram；
Fig. 5 is present configuration embodiment four schematic diagram；
Fig. 6 is present configuration embodiment five schematic diagram；
Fig. 7 is that single hop of the present invention seals structural stress magnitude numerical value analysis schematic diagram；
Fig. 8 is that the present invention four sections seals structural stress magnitude numerical value analysis schematic diagram；
Fig. 9 is that Special threading connector of the present invention assembles schematic diagram.
In figure:
A, body B, box cupling
E, body single hop are in sealing contact position G, body male thread seals and takes on roof platform
F, box cupling single hop are in sealing contact position H, body box thread seals and takes on roof platform
The double section of E1, body is in sealing contact position 1 E2, the double section of body is in sealing contact position 2
E11, body three sections are in sealing contact position 1 E21, the double section of body is in sealing contact position 2
E31, body three sections are in sealing contact position 3
E12, body four sections are in sealing contact position 1 E22, body four sections is in sealing contact position 2
E32, body four sections are in sealing contact position 3 E42, body four sections is in sealing contact position 4
The double section of F1, box cupling is in sealing contact position 1 F2, the double section of box cupling is in sealing contact position 2
F11, box cupling three sections are in sealing contact position 1 F21, box cupling three sections is in sealing contact position 2
F31, box cupling three sections are in sealing contact position 3
F12, box cupling four sections are in sealing contact position 1 F22, box cupling four sections is in sealing contact position 2
F32, box cupling four sections are in sealing contact position 3 F42, box cupling four sections is in sealing contact position 4
Detailed description of the invention
In conjunction with accompanying drawing adding for high-performance nipple special buckle oil well pipe metal to metal seal structure the present invention
With explanation.
The present invention for high-performance nipple special buckle oil well pipe metal to metal seal structure design philosophy is, logical
Cross box cupling B and body A metal to metal seal position uses single hop to the sealing version of multistage, produce multi-sealed protection
Effect, this kind of multistage seals version and is particularly suited for heavy wall oil well pipe, and the twist-on eventually through box cupling and body realizes two
Person's shoulder is to top, and seals position and be adjacent to, it is achieved sealing function.It is right to be sealed by body A and box cupling B twist-on pipe male thread
Roof platform shoulder G and body box thread seal roof platform shoulder H top, reach body single hop and are in sealing contact position E and the sealing of box cupling single hop
The sealing surface contact of contact site F.
The present invention for high-performance nipple special buckle oil well pipe metal to metal seal structure, this structure includes
The body single hop that mutually twist-on is in sealing contact position F and body A male end to the box cupling B female end box cupling single hop behind top is in sealing contact portion
Position E, single hop is in sealing contact position F and body single hop is in sealing contact position E and changes according to body A male end front end wall thickness t1, seals
Contact site can obtain single hop sealing structure and seal structure to multistage, is in sealing contact position F and body at described single hop simultaneously
Box thread seals the control structure that roof platform shoulder H wedge angle position uses opening M and not opening M, makes box cupling B female end sealing position F
Being adjacent to the sealing position E of body A male end, the body male thread of body A male end and box cupling B female end seals takes on G, body to roof platform
Box thread seals roof platform shoulder H top.
And be in sealing contact the body single hop of position F and body A male end by box cupling B female end single hop and be in sealing contact position E's
Cross in the range of sealing surface length L and win contact realization, on the basis of ensureing that body A male end nose thickness t1 is more than 5mm, according to sealing
Sealing structure is divided into multistage form by single hop by face length degree, and sealing surface length L uses single hop to seal structure in 10mm, seals
Face length degree L is more than using multistage sealing structure after 10mm.
The control structure of opening M is that female end sealing surface seals in cusp distance range L1 is 0-5mm angled apart from female end
Change, have the horizontal line M at 0 degree of angle and body box thread to seal and roof platform shoulder H is intersected, then chamfering R1.
The control structure of opening M is not to be in sealing contact position F and the sealing of body box thread to roof platform shoulder H angle according to single hop
The version intersected, then point of intersection rounding R1；
Whether there is opening M structure, be in sealing contact the angle of position E each along body single hop and body male thread is close
Seal the angle to roof platform shoulder G finally to intersect, then point of intersection rounding R2.
Opening M is to be in sealing contact position F at single hop to seal distance L1 to roof platform shoulder H at 0-5mm close to body box thread
In, the gradient that single hop is in sealing contact position F is modified the reconfiguration form for 0 degree of angle of horizontal segment.
Described box cupling single hop is in sealing contact position F and body single hop is in sealing contact position E and is equipped with single hop and seals structure and arrive
Multistage seals structure, makes body single hop be in sealing contact position E eventually through twist-on and box cupling single hop is in sealing contact position F and has been adjacent to
Become to seal, make body male thread seal and roof platform shoulder G, body box thread are sealed and produce roof platform shoulder H to top, complete twist-on.
Along with body A male end nose thickness t1 changes, body single hop is in sealing contact position E and box cupling single hop is in sealing contact portion
There is different single hop sealing structures and seal structure to multistage in position F, seals as 5mm t1 8mm and use single hop to seal structure；
When 8mm < t1 < seals the 2 or 3 segment structure forms using multistage to seal structure during 17mm；Seal as 17mm t1 23mm and adopt
Seal 3 or 4 segment structure forms of structure with multistage, complete body single hop eventually through twist-on and be in sealing contact position E and box cupling list
Section is in sealing contact position F and has been adjacent to seal, and body male thread seals and seals roof platform shoulder G and body box thread to roof platform
Shoulder H produces top, completes twist-on.
Described fillet R1 radius 0.8-1.4mm, fillet R2 radius 1-2mm, it is desirable to R2 > R1, R2-R1 > 0.6.
Fig. 9 is the Special threading connector assembling structural representation after body A and box cupling B twist-on.
Fig. 1 is to change according to body A male end nose thickness t1, sealing surface length L can be divided into single hop to the knot of multistage
Configuration formula.
Fig. 2 is high-performance nipple special buckle oil well pipe metal to metal seal structure, by twist-on, reaches body public
Roof platform shoulder G and body box thread are sealed roof platform shoulder H top by thread seal, and body single hop is in sealing contact position E and box cupling list
Section is in sealing contact position F single hop and seals interference, reaches sealing effectiveness.
Fig. 3 is the metal to metal seal structure that high-performance nipple special buckle oil well pipe has opening M, by twisting
Connect, reach the sealing of body male thread and top, body single hop are in sealing contact by roof platform shoulder G and the sealing of body box thread by roof platform shoulder H
Position E and box cupling single hop are in sealing contact position F single hop and seal interference, reach sealing effectiveness.
Fig. 4 is the metal to metal seal structure that high-performance nipple special buckle oil well pipe has opening M, by twisting
Connecing, reach the sealing of body male thread and seal to roof platform shoulder H roof platform shoulder G and body box thread to top, the double section of body is in sealing contact
Position 1E1 and the double section of box cupling are in sealing contact position 1F1, and the double section of body is in sealing contact position 2E2 and the double section of box cupling is in sealing contact portion
2F2 double section in position seals interference, reaches sealing effectiveness.
Fig. 5 is the metal to metal seal structure that high-performance nipple special buckle oil well pipe has opening M, by twisting
Connect, reach the sealing of body male thread and top, body three sections are in sealing contact by roof platform shoulder G and the sealing of body box thread by roof platform shoulder H
Position 1E11 and box cupling three sections are in sealing contact position 1F11 interference, and body three sections is in sealing contact position 2E21 and box cupling three sections sealing
Contact site 2F21 interference, body three sections is in sealing contact position 3E31 and box cupling three sections is in sealing contact position 3F31 interference, three sections
It is in sealing contact structure, reaches sealing effectiveness.
Fig. 6 is the metal to metal seal structure that high-performance nipple special buckle oil well pipe has opening M, by twisting
Connect, reach the sealing of body male thread and top, body four sections are in sealing contact by roof platform shoulder G and the sealing of body box thread by roof platform shoulder H
Position 1E12 and box cupling four sections are in sealing contact position 1F12 interference, and body four sections is in sealing contact position 2E22 and box cupling four sections sealing
Contact site 2F22 interference, body four sections is in sealing contact position 3E32 and box cupling four sections is in sealing contact position 3F32 interference, male end
Sealing surface 4E42 and female end sealing surface 4F42 interference, four sections are in sealing contact structure, reach sealing effectiveness.
Fig. 7 is that male and female screw thread single hop is in sealing contact stress figure, and Fig. 8 is that four sections of male and female screw thread is in sealing contact stress figure.
Fig. 7 and Fig. 8 is that the numerical analysis sealing surface of 9 7/8in 66.9ppf TP140TB TP-G2 button-type two kinds sealing version is subject to
Power is seen, Fig. 7 vertical coordinate contact stress maximum is at 1400 MPas, and Fig. 7 abscissa has the contact length of the point of stress value at 2mm
In the range of, Fig. 8 vertical coordinate contact stress maximum is between 1200～1400 MPas, and abscissa has the contact of stress value point
Length seals position more than 12mm, TP-G2 Special threading connector and is keeping certain mistake to win under contact stress, the length of the section of being in sealing contact
Degree is also a strong index, and contact length factory ensure that contact range is bigger, and sealing effectiveness is more preferable.
The male and female end of body A and box cupling B seals position has single hop to touch the requirement that multistage contacts.Multistage seals and effectively increases
Add contact right, reach the sealing effectiveness of gas in body.
Claims (4)
1., for a high-performance nipple special buckle oil well pipe metal to metal seal structure, it is characterized in that: this structure bag
Include mutual twist-on and box cupling (B) the female end box cupling single hop behind top is in sealing contact position (F) and the body single hop of body (A) male end
Be in sealing contact position (E), single hop is in sealing contact position (F) and body single hop be in sealing contact position (E) according to body (A) male end before
End wall thick (t1) change, is in sealing contact position and can obtain single hop and seal structure and seal structure to multistage, while at described single hop
It is in sealing contact position (F) and body box thread and seals the control that roof platform shoulder (H) wedge angle position is used opening (M) and not opening (M)
Structure processed, makes box cupling (B) female end seal position (F) and the sealing position (E) of body (A) male end is adjacent to, body (A) male end with connect
The body male thread of hoop (B) female end seals and seals to roof platform shoulder (H) roof platform shoulder (G), body box thread to top；
And be in sealing contact the body single hop of position (F) and body (A) male end by box cupling (B) female end single hop and be in sealing contact position
(E) cross in the range of sealing surface length L and win contact realization, ensureing that body (A) male end nose thickness (t1) is more than 5mm basis
On, according to length L, sealing structure being divided into multistage form by single hop, sealing surface length uses single hop to seal knot in 10mm
Structure, seal length L is more than using multistage sealing structure after 10mm；
The control structure of opening (M) is that female end sealing surface seals angled in cusp distance range L1 is 0-5mm changing apart from female end
Become, have the horizontal line (M) at 0 degree of angle and body box thread to seal and roof platform shoulder (H) is intersected, then chamfering (R1)；
The control structure of opening (M) is not to be in sealing contact position (F) and the sealing of body box thread to roof platform shoulder (H) angle according to single hop
The version that degree intersects, then point of intersection rounding (R1)；
Whether there is opening (M) structure, be in sealing contact the angle at position (E) each along body single hop and body male thread is close
Seal the angle to roof platform shoulder (G) finally to intersect, then point of intersection rounding (R2)；
Opening (M) is to be in sealing contact position (F) at single hop to seal distance L1 to roof platform shoulder (H) at 0-close to body box thread
In 5mm, the gradient that single hop is in sealing contact position (F) is modified the reconfiguration form for 0 degree of angle of horizontal segment.
High-performance nipple special buckle oil well pipe metal to metal seal structure the most according to claim 1, its feature
It is: described box cupling single hop is in sealing contact position (F) and body single hop is in sealing contact position (E) and is equipped with single hop sealing structure to many
Section seals structure, makes body single hop be in sealing contact position (E) eventually through twist-on and box cupling single hop is in sealing contact position (F) and is adjacent to
Complete to seal, make body male thread seal and roof platform shoulder (G), body box thread are sealed and produce roof platform shoulder (H) to top, complete to twist
Connect.
High-performance nipple special buckle oil well pipe metal to metal seal structure the most according to claim 1, its feature
It is: along with body (A) male end nose thickness (t1) changes, body single hop is in sealing contact position (E) and box cupling single hop is in sealing contact
There is different single hop sealing structures and seal structure to multistage in position (F), seals as 5mm t1 8mm and use single hop to seal
Structure；When 8mm < t1 < seals the 2 or 3 segment structure forms using multistage to seal structure during 17mm；As 17mm t1 23mm close
Envelope use multistage seal structure 3 or 4 segment structure forms, eventually through twist-on complete body single hop be in sealing contact position (E) and
Box cupling single hop is in sealing contact position (F) and has been adjacent to seal, and body male thread seals and roof platform is takeed on (G) and body box thread
Seal and roof platform shoulder (H) is produced top, complete twist-on.
High-performance nipple special buckle oil well pipe metal to metal seal structure the most according to claim 1, its feature
It is: described fillet (R1) radius 0.8-1.4mm, fillet (R2) radius 1-2mm, it is desirable to (R2) > (R1), (R2)-
(R1)>0.6。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610802106.2A CN106194052A (en) | 2016-09-05 | 2016-09-05 | High-performance nipple special buckle oil well pipe metal to metal seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610802106.2A CN106194052A (en) | 2016-09-05 | 2016-09-05 | High-performance nipple special buckle oil well pipe metal to metal seal structure |
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| Publication Number | Publication Date |
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| CN106194052A true CN106194052A (en) | 2016-12-07 |
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| CN201610802106.2A Pending CN106194052A (en) | 2016-09-05 | 2016-09-05 | High-performance nipple special buckle oil well pipe metal to metal seal structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356533A (en) * | 2018-11-30 | 2019-02-19 | 中海石油(中国)有限公司 | A kind of deep water surface conductor pipe |
| CN109944559A (en) * | 2017-12-21 | 2019-06-28 | 宝山钢铁股份有限公司 | A kind of nipple position on the buckle control method |
| WO2019184470A1 (en) * | 2018-03-26 | 2019-10-03 | 中国石油天然气集团有限公司 | Method for determining manufacturing parameters of sealing structure of oil well pipe joint, and sealing method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003669A (en) * | 1974-07-26 | 1977-01-18 | Fenske Edward F | Anti-corrosive insert for sucker rod couplings |
| US4253687A (en) * | 1979-06-11 | 1981-03-03 | Whiting Oilfield Rental, Inc. | Pipe connection |
| CN202176273U (en) * | 2011-07-12 | 2012-03-28 | 上海大学 | High-temperature high-pressure petroleum casing pipe thread connector |
| CN203201491U (en) * | 2013-03-01 | 2013-09-18 | 无锡西姆莱斯石油专用管制造有限公司 | Metal air-tight seal rotary bead type drill rod joint |
| CN103321587A (en) * | 2013-07-16 | 2013-09-25 | 无锡西姆莱斯石油专用管制造有限公司 | Plane-shoulder planoconic sealing surface variable-tooth-width wedge-type coupling structure and oil well pipe structure |
| CN103362456A (en) * | 2013-08-03 | 2013-10-23 | 无锡西姆莱斯石油专用管制造有限公司 | Leakage-proof high-seal tooth-width-changing wedge type coupling structure and oil well pipe structure |
| CN103362450A (en) * | 2013-08-03 | 2013-10-23 | 无锡西姆莱斯石油专用管制造有限公司 | Non-coupling multi-sealing tooth-width-variable wedge type threaded oil well pipe structure |
| CN103362458A (en) * | 2013-08-03 | 2013-10-23 | 无锡西姆莱斯石油专用管制造有限公司 | Multi-plane sealing tooth-width-changing wedge type coupling structure and oil well pipe structure |
| CN103628827A (en) * | 2012-08-20 | 2014-03-12 | 东港市东方高新金属材料有限公司 | Anti-bonding three-stage end surface metal sealing threaded connector for titanium alloy pipe |
| CN203978315U (en) * | 2014-07-21 | 2014-12-03 | 中国石油化工股份有限公司 | A kind of special hermetic seal oil connection of little external diameter for low-permeability oil deposit |
| CN205477407U (en) * | 2016-01-06 | 2016-08-17 | 李鹏冲 | Shale air to open hair screwed joint |
| CN206035398U (en) * | 2016-09-05 | 2017-03-22 | 天津钢管集团股份有限公司 | Special knot oil well pipe metal -to -metal seal structure of high performance screwed joint |
-
2016
- 2016-09-05 CN CN201610802106.2A patent/CN106194052A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003669A (en) * | 1974-07-26 | 1977-01-18 | Fenske Edward F | Anti-corrosive insert for sucker rod couplings |
| US4253687A (en) * | 1979-06-11 | 1981-03-03 | Whiting Oilfield Rental, Inc. | Pipe connection |
| CN202176273U (en) * | 2011-07-12 | 2012-03-28 | 上海大学 | High-temperature high-pressure petroleum casing pipe thread connector |
| CN103628827A (en) * | 2012-08-20 | 2014-03-12 | 东港市东方高新金属材料有限公司 | Anti-bonding three-stage end surface metal sealing threaded connector for titanium alloy pipe |
| CN203201491U (en) * | 2013-03-01 | 2013-09-18 | 无锡西姆莱斯石油专用管制造有限公司 | Metal air-tight seal rotary bead type drill rod joint |
| CN103321587A (en) * | 2013-07-16 | 2013-09-25 | 无锡西姆莱斯石油专用管制造有限公司 | Plane-shoulder planoconic sealing surface variable-tooth-width wedge-type coupling structure and oil well pipe structure |
| CN103362456A (en) * | 2013-08-03 | 2013-10-23 | 无锡西姆莱斯石油专用管制造有限公司 | Leakage-proof high-seal tooth-width-changing wedge type coupling structure and oil well pipe structure |
| CN103362450A (en) * | 2013-08-03 | 2013-10-23 | 无锡西姆莱斯石油专用管制造有限公司 | Non-coupling multi-sealing tooth-width-variable wedge type threaded oil well pipe structure |
| CN103362458A (en) * | 2013-08-03 | 2013-10-23 | 无锡西姆莱斯石油专用管制造有限公司 | Multi-plane sealing tooth-width-changing wedge type coupling structure and oil well pipe structure |
| CN203978315U (en) * | 2014-07-21 | 2014-12-03 | 中国石油化工股份有限公司 | A kind of special hermetic seal oil connection of little external diameter for low-permeability oil deposit |
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Application publication date: 20161207 |