CN203515346U - Special lined oil pipe - Google Patents
Special lined oil pipe Download PDFInfo
- Publication number
- CN203515346U CN203515346U CN201320641123.4U CN201320641123U CN203515346U CN 203515346 U CN203515346 U CN 203515346U CN 201320641123 U CN201320641123 U CN 201320641123U CN 203515346 U CN203515346 U CN 203515346U
- Authority
- CN
- China
- Prior art keywords
- pipe
- oil
- oil pipe
- pipes
- flanged
- 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.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 abstract 1
- 241001463139 Vitta Species 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a special lined oil pipe. The innovation point is that the special lined oil pipe comprises oil pipes, lining pipes and oil pipe connecting hoops, wherein adjacent oil pipes are in threaded connection through the oil pipe connecting hoops; the lining pipes are arranged in the oil pipes; the lining pipes are flanged at the pipe orifices of the oil pipes along the radial direction of the oil pipes to form flanged pipe orifices; the outer diameters of the flanged pipe orifices are smaller than the bottom diameters of the outer screw threads of the oil pipes; an angle of arc chamfer A is arranged at the inner circle of each flanged pipe orifice; an angle of arc chamfer B is arranged at the outer circle of each flanged pipe orifice. The special lined oil pipe has the advantages that: the lining pipes are provided with the flanged sides and the angles of chamfer are arranged on both the inner and outer circles of the flanged pipe orifices; the angle of arc chamfer B and a guiding conical surface are used for guiding a lower tubular column and protecting the lining pipes against damage; the angle of arc chamfer A can guarantee no clamping stagnation of an oil pumping tubular column during up-and-down motion, and meanwhile can protect the lining pipe material against damage.
Description
Technical field
The utility model relates to a kind of oil pipe, particularly a kind of extraordinary liner oil pipe.
Background technology
Current oil liner oil pipe all adopts built-in anticorrosion antiwear inner liner in oil pipe, can prevent the wearing and tearing of sucker rod and tube inner wall and the internal corrosion of oil pipe.Liner surface is smooth, pliable and tough, can prevent first sucker rod and tube inner wall direct friction, second can reduce the wear extent of sucker rod.Therefore, wearing layer can all play down protective effect to oil pipe and sucker rod simultaneously.
In addition,, because the friction factor of inside lining anti-corrosive wearing layer is lower, make the output torque of oil well polished rod load, reducer gear case, rod string bottom minimum stress all have significant reduction.And polished rod maximum load and minimum load be poor also significant reduction.The load reduction of the upper and lower stroke of sucker rod, can reduce sucker rod first because of the crooked degree of pressurized, improves pipe bar wear condition, and two can reduce the energy consumption of whole system.
In conventional oil liner vitta structure, the end of internal lining pipe flushes with oil pipe end, and because oil pipe all needs to take over to reach by tubing coupling the total length of needs; Therefore, the internal lining pipe end of adapter place is easily by sucker rod failure; And during the upper and lower motion of rod string, internal lining pipe end can be caused and cause clamping stagnation sucker rod.
Summary of the invention
The technical problems to be solved in the utility model is difficult for clamping stagnation and the non-damageable extraordinary liner oil pipe of inner liner while being to provide a kind of sucker rod motion.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of extraordinary liner oil pipe, and its innovative point is: comprise oil pipe, internal lining pipe and tubing coupling,
Oil pipe two ends arrange external thread structure, and tubing coupling two ends arrange female thread structure, between adjacent oil pipe, by tubing coupling, are threaded;
The built-in internal lining pipe with its interference fit of oil pipe, internal lining pipe at the mouth of pipe place of oil pipe along oil pipe radially flange form the flange mouth of pipe, flange mouth of pipe external diameter is less than footpath at the bottom of oil tube external thread; Described flange mouth of pipe inner ring place arranges circular arc chamfering A, and place, flange mouth of pipe outer ring arranges circular arc chamfering B, and at the external surface of the flange mouth of pipe, the guiding conical surface is set;
The thickness of the described flange mouth of pipe is 5.8 ~ 6.2mm, and the radius of circular arc chamfering A is 1.8 ~ 2.2mm, and the radius of circular arc chamfering B is 2.8 ~ 3.2mm, and the angle of the guiding conical surface and oil pipe axis is 25 ~ 30 °.
Preferably, described internal lining pipe is super high molecular weight inner liner.
The utility model has the advantage of:
Extraordinary liner oil pipe adopts at the built-in internal lining pipe of ordinary steel liquefaction pipe, and internal lining pipe is super high molecular weight inner liner, can prevent the wearing and tearing of sucker rod and tube inner wall and the internal corrosion of oil pipe, and rod string is shielded.And internal lining pipe arranges flange, and at the inside and outside circle at flange mouth of pipe place, chamfering is all set, circular arc chamfering B and the guiding conical surface have been used for lower tubular column guiding, the not impaired effect of protection liner tubing.And circular arc chamfering A clamping stagnation not can guarantee that rod string moves up and down time protects liner tubing not damaged simultaneously.
Accompanying drawing explanation
Fig. 1 is the extraordinary liner vitta structure schematic diagram of the utility model oil.
The specific embodiment
Embodiment
Refer to Fig. 1, the utility model has disclosed the extraordinary liner vitta structure of a kind of oil, comprises oil pipe 1, internal lining pipe 3 and tubing coupling 2,
Oil pipe 1 two ends arrange external thread structure, and tubing coupling 2 two ends arrange female thread structure, between adjacent oil pipe 1, by tubing coupling 2, are threaded.
The built-in internal lining pipe 3 with its interference fit of oil pipe 1, internal lining pipe 3 is super high molecular weight inner liner.Internal lining pipe 3 at the mouth of pipe place of oil pipe along oil pipe radially flange form the flange mouth of pipe, flange mouth of pipe outside diameter d is less than footpath at the bottom of oil tube external thread.
Flange mouth of pipe inner ring place arranges circular arc chamfering A, and place, flange mouth of pipe outer ring arranges circular arc chamfering B, and at the external surface of the flange mouth of pipe, the guiding conical surface is set;
Wherein, the thickness L of the flange mouth of pipe is 5.8 ~ 6.2mm, and the radius R 1 of circular arc chamfering A is 1.8 ~ 2.2mm, and the radius R 2 of circular arc chamfering B is 2.8 ~ 3.2mm, and the angle of the guiding conical surface and oil pipe axis is 25 ~ 30 °.
Claims (2)
1. an extraordinary liner oil pipe, is characterized in that: comprise oil pipe, internal lining pipe and tubing coupling,
Oil pipe two ends arrange external thread structure, and tubing coupling two ends arrange female thread structure, between adjacent oil pipe, by tubing coupling, are threaded;
The built-in internal lining pipe with its interference fit of oil pipe, internal lining pipe at the mouth of pipe place of oil pipe along oil pipe radially flange form the flange mouth of pipe, flange mouth of pipe external diameter is less than footpath at the bottom of oil tube external thread; Described flange mouth of pipe inner ring place arranges circular arc chamfering A, and place, flange mouth of pipe outer ring arranges circular arc chamfering B, and at the external surface of the flange mouth of pipe, the guiding conical surface is set;
The thickness of the described flange mouth of pipe is 5.8 ~ 6.2mm, and the radius of circular arc chamfering A is 1.8 ~ 2.2mm, and the radius of circular arc chamfering B is 2.8 ~ 3.2mm, and the angle of the guiding conical surface and oil pipe axis is 25 ~ 30 °.
2. extraordinary liner oil pipe according to claim 1, is characterized in that: described internal lining pipe is super high molecular weight inner liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641123.4U CN203515346U (en) | 2013-10-17 | 2013-10-17 | Special lined oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641123.4U CN203515346U (en) | 2013-10-17 | 2013-10-17 | Special lined oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515346U true CN203515346U (en) | 2014-04-02 |
Family
ID=50374293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320641123.4U Expired - Lifetime CN203515346U (en) | 2013-10-17 | 2013-10-17 | Special lined oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515346U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005711A (en) * | 2014-06-09 | 2014-08-27 | 南通市华业石油机械有限公司 | Anti-scaling tubing coupling structure |
| CN106522852A (en) * | 2016-11-17 | 2017-03-22 | 东营市金亿来石油机械有限公司 | High-temperature-resistant lining oil pipe |
| CN106837192A (en) * | 2017-02-23 | 2017-06-13 | 南通市华业石油机械有限公司 | A kind of liner oil pipe and its manufacturing process |
| CN108518184A (en) * | 2018-03-26 | 2018-09-11 | 天津商业大学 | A kind of new Joining Structure of oil well pipe and box cupling |
| CN110273653A (en) * | 2019-07-17 | 2019-09-24 | 山东墨龙石油机械股份有限公司 | Bimetallic is anti-corrosion tubing and casing and its attachment device |
| CN111577153A (en) * | 2020-04-24 | 2020-08-25 | 克拉玛依市科能防腐技术有限责任公司 | Method for connecting, fixing and marking oil pipe hoop and pipe body |
-
2013
- 2013-10-17 CN CN201320641123.4U patent/CN203515346U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005711A (en) * | 2014-06-09 | 2014-08-27 | 南通市华业石油机械有限公司 | Anti-scaling tubing coupling structure |
| CN106522852A (en) * | 2016-11-17 | 2017-03-22 | 东营市金亿来石油机械有限公司 | High-temperature-resistant lining oil pipe |
| CN106837192A (en) * | 2017-02-23 | 2017-06-13 | 南通市华业石油机械有限公司 | A kind of liner oil pipe and its manufacturing process |
| CN108518184A (en) * | 2018-03-26 | 2018-09-11 | 天津商业大学 | A kind of new Joining Structure of oil well pipe and box cupling |
| CN110273653A (en) * | 2019-07-17 | 2019-09-24 | 山东墨龙石油机械股份有限公司 | Bimetallic is anti-corrosion tubing and casing and its attachment device |
| CN111577153A (en) * | 2020-04-24 | 2020-08-25 | 克拉玛依市科能防腐技术有限责任公司 | Method for connecting, fixing and marking oil pipe hoop and pipe body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203515346U (en) | Special lined oil pipe | |
| CN202673174U (en) | High seal special buttress thread pipe connector | |
| CN102678071A (en) | High-airtightness special buttress thread sleeve connection joint | |
| CN205135437U (en) | Heat preservation type inside lining oil pipe | |
| CN102678065B (en) | The special buttress thread union of high sealability | |
| CN202578555U (en) | Special buttress thread oil casing joint | |
| CN202900063U (en) | Threaded joint of air-tight seal oil pipe | |
| CN102852466B (en) | Special buttress thread oil sleeve connecting joint | |
| CN202673178U (en) | High-sealing buttress threaded conduit connecting joint | |
| CN201874485U (en) | Metal sealed casing threaded connecting structure based on API (American Petroleum Institute) standard round threads | |
| CN104005711A (en) | Anti-scaling tubing coupling structure | |
| CN103395210A (en) | Production method for rubber-plastic subsea pipeline and connection structure for same | |
| CN202165022U (en) | Anti-bending oil tube threaded connection structure | |
| CN202176273U (en) | High-temperature high-pressure petroleum casing pipe thread connector | |
| CN202578554U (en) | Special buttress thread oil sleeve connection joint | |
| CN203188922U (en) | Hermetic seal buckle profile | |
| CN104033676A (en) | Pipeline joint | |
| CN102996079A (en) | Tubular air sealing screwed joint and application thereof | |
| CN202007937U (en) | Male ends propped-against oil sleeve connecting structure | |
| CN206035392U (en) | Screw connection drill rod | |
| CN201891971U (en) | Branch pipeline fast installation device for main pipeline | |
| CN201372734Y (en) | Concentric oil pipe device | |
| CN204083546U (en) | A kind of three layers of composite oil pipe | |
| CN206234508U (en) | A kind of anticreep box cupling for petroleum pipeline | |
| CN203961823U (en) | A kind of minor diameter down-hole compensation arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |