CN101906941B - Integral joint tubing by upset forging processing - Google Patents
Integral joint tubing by upset forging processing Download PDFInfo
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- CN101906941B CN101906941B CN 201010219343 CN201010219343A CN101906941B CN 101906941 B CN101906941 B CN 101906941B CN 201010219343 CN201010219343 CN 201010219343 CN 201010219343 A CN201010219343 A CN 201010219343A CN 101906941 B CN101906941 B CN 101906941B
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- male end
- tubing
- oil pipe
- female end
- male
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- 238000009721 upset forging Methods 0.000 title claims abstract description 9
- 230000007704 transition Effects 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003672 processing method Methods 0.000 abstract description 5
- 238000006748 scratching Methods 0.000 abstract description 4
- 230000002393 scratching effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 241001463139 Vitta Species 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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Abstract
The invention provides an integral joint tubing by upset forging processing. One end of the tubing is provided with a male end, a male end reverse angle is arranged at the periphery of tubing wall of the male end, a male end external screw thread is arranged at the outer side of the tubing wall of the male end, a left straight stand is arranged at the outer side of the tubing connected with the male end, the downwards inclining part equal to a pipe diameter is a left transition shoulder, and a ramp-transition shoulder is arranged at the outer side of the male end; an equant tubing in full length is connected with the male end and the female end, a female end straight opening is arranged at the outer end of the female end, a female end internal screw thread is arranged on the inner wall of the female end straight opening, a clearance knife is arranged at the inner side of the internal screw thread inside the female end straight opening, a balance and equant right stand is arranged on the outer wall of the tubing connected with the female end, and the right stand is connected with a right transition shoulder. The male end and the female end are processed by using an upset forging processing method. Because the upset forging processing is utilized for the male end and the female end of the tubing and the transition shoulders are arranged thereon, the integral joint tubing has the advantages of high strength and convenient restoration, prevents scratching and collision against accidents, and is suitably applied to producing the tubing in the oil extraction field.
Description
Technical field
What the present invention proposed is the petroleum machinery of mechanical field, specifically integral joint tubing by upset forging processing.
Background technology
What the present oil pipe that is used for oil exploitation adopted is the N80 material seamless steel pipe of national standard, as Φ 73 * 5.5, Φ 89 * 6.5 etc.Product requirement is processed into oil tube external thread with two ends, and then processes tubing coupling separately, by this box cupling oil pipe is connected to form the oil pipe tubing string.Its shortcoming is: assembling back box cupling has tangible shoulder with oil pipe, causes down that well operations bumps, the catching phenomenon generation; Be the heavy wall tubing screw thread as product requirement, the mother metal external diameter of pipe is little, does not satisfy the requirement of product, can only process the tubing round thread of not thickening.
The oil pipe that is used for oil exploitation adopts metal bar material machining to form usually at present, and its basic structure is: the oil pipe two ends are provided with box cupling, carry out interconnecting of oil pipe by box cupling.Because the box cupling that connects on the oil pipe is bigger than tubing diameter, so, down to the down-hole time, be subjected to the friction of the borehole wall and stop that easy and tubing centrilizer generation scratching influences the normal use of oil pipe.
Because currently used oil pipe adopts the mode of machining to carry out, its material is loose, and intensity is low, in use, and the fracture accident of becoming less severe easily.
Because present employed oil pipe is subjected to the restriction of structure, when suffering breakage, can only changes, and be not easy to repair.
Can illustrate according to above example, according to manufacture method and the architectural feature of present employed oil pipe, have many insoluble problems.
Summary of the invention
In order to overcome existing vitta structure and the existing problem of processing method, the present invention proposes integral joint tubing by upset forging processing.This oil pipe solves the problem that oil pipe connects by the two ends screw thread, solves the problem of oil pipe processing by the upsetting processing method.
The scheme that technical solution problem of the present invention adopts is: oil pipe is the tube of preseting length, and its inside is provided with tube chamber.One end of oil pipe is provided with male end, tube wall periphery in male end is provided with the male end chamfering, the tube wall outside in male end is provided with the male end external screw thread, the oil pipe outside that is connected with male end is provided with the left station of straight projection, the downward-sloping part that is equal to caliber is left transition shoulder with it, is provided with the shoulder of slope transition in the outside of male end.What be connected with female end in male end is elongated isometrical oil pipe, be provided with straight mouthful of female end in the female end outer end, be provided with the female end internal thread at the straight mouthful inwall of female end, internal thread inboard in the straight mouth of female end is provided with the sky cutter, the oil-pipe external wall that is connected with female end is provided with the isometrical right station of balance, and what be attached thereto is right transition shoulder.
Oil pipe is upset and forged processing: the seamless steel pipe of getting preseting length is made the oil pipe blank, after being heated to 800 ℃, putting into the rammer that has internal mold and forges in the machine mould, pressurization is upset and is forged, and the oil pipe external diameter is increased, and internal diameter dwindles, tube wall thickens, and cuts internal thread and external screw thread and external surface then, forms oil pipe.
Good effect: because the processing of upsetting processing method is all adopted at the two ends of oil pipe of the present invention, density is big, the intensity height; Because the changeover portion of oil pipe equates, is convenient to repair; Because changeover portion do not have shoulder, when preventing from going into the well with the scratching of tubing centrilizer phase; Because oil pipe relatively directly connects, and is not easy to occur the connection accident.The suitable for producing oil pipe is used.
Description of drawings
Fig. 1 is vitta structure figure of the present invention
Among the figure, 01. male end, 02. female end, 1. male end chamfering, the 01.1. left station, 01.2. left side transition shoulder, the 02.1. right station, the right transition shoulder of 02.2., 2. male end external screw thread, the 3. empty cutter of female end, 4. female end internal thread, 5. female end is straight mouthful, 6. the male end shoulder.
The specific embodiment
According to shown in Figure 1, oil pipe is the tube of preseting length, and its inside is provided with tube chamber.One end of oil pipe is provided with male end 01, tube wall periphery in male end is provided with male end chamfering 1, the tube wall outside in male end is provided with male end external screw thread 2, the oil pipe outside that is connected with male end is provided with the left station 01.1 of straight projection, the downward-sloping part that is equal to caliber is left transition shoulder 01.2 with it, is provided with the shoulder 6 of slope transition in the outside of male end.What be connected with female end in male end is elongated isometrical oil pipe, be provided with straight mouthful 5 of female end in female end 02 outer end, be provided with female end internal thread 4 at the straight mouthful inwall of female end, internal thread inboard in the straight mouth of female end is provided with sky cutter 3, the oil-pipe external wall that is connected with female end is provided with the isometrical right station of balance 02.1, and what be attached thereto is right transition shoulder 02.2.
Oil pipe is upset and forged processing: the seamless steel pipe of getting preseting length is made the oil pipe blank, after being heated to 800 ℃, putting into the rammer that has internal mold and forges in the machine mould, pressurization is upset and is forged, and the oil pipe external diameter is increased, and internal diameter dwindles, tube wall thickens, and cuts internal thread and external screw thread and external surface then, forms oil pipe.
The connection of oil pipe of the present invention: when an oil pipe was connected with another root oil pipe, its male end was inserted in the straight mouth of female end, fixes by male end external screw thread and the screwed connection of female end internal thread, and oil pipe can infinitely be prolonged.Owing to cancelled traditional box cupling, and directly be threaded by the male and female end, institute is not so that underground work has the card of bumping phenomenon.
The advantage of oil pipe of the present invention
1, because the mother metal metallographic structure has been improved by upsetting in mother metal pipe two ends, improves intensity, increase the service life.
2, because the oil pipe two ends all adopt the upsetting processing method to process, and therefore, density is big, the intensity height can be used in the jumping-up processing of various oil pipes, sleeve pipe.
3, left station equates with right station, is convenient to repair.
4, left transition shoulder and right transition shoulder do not have the outstanding shoulder of high point, when preventing from going into the well with the scratching of tubing centrilizer phase.
5, oil pipe directly is connected with female end by male end, reduces the generation that comes off with phenomenon of rupture.
Oil pipe of the present invention is used for recovering the oil in the oil field and various oil pipe, sleeve pipe thickening.
Be applicable to various steel pipe jumping-ups and be connected.
Interchangeable with plain tubing, versatility is good.
Endoporus and external diameter can strengthen or dwindle.
One time jumping-up can repeatedly be repaired, and can realize energy-conservation.
Claims (2)
1. integral joint tubing by upset forging processing, it is characterized in that: an end of oil pipe is provided with male end (01), be provided with male end chamfering (1) in the tube wall periphery of male end, the tube wall outside in male end is provided with male end external screw thread (2), the oil pipe outside that is connected with male end is provided with the left station (01.1) of straight projection, sloping down to the part that is equal to caliber with it is left transition shoulder (01.2), be provided with the shoulder (6) of slope transition in the outside of male end, what be connected with female end in male end is the oil pipe of elongated equal diameter, be provided with female end straight mouthful (5) in female end (02) outer end, be provided with female end internal thread (4) at the straight mouthful inwall of female end, internal thread inboard in the straight mouth of female end is provided with sky cutter (3), the oil-pipe external wall that is connected with female end is provided with the right station (02.1) constant with the parallel diameter of oil pipe tube chamber, and what be attached thereto is right transition shoulder (02.2).
2. integral joint tubing by upset forging processing according to claim 1, it is characterized in that: oil pipe upsetting processing: the seamless steel pipe of getting preseting length is made the oil pipe blank, after being heated to 800 ℃, put in the upsetter mould that has internal mold, the pressurization upsetting increases the oil pipe external diameter, internal diameter dwindles, tube wall thickens, and cuts internal thread and external screw thread and external surface then, forms oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219343 CN101906941B (en) | 2010-07-07 | 2010-07-07 | Integral joint tubing by upset forging processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219343 CN101906941B (en) | 2010-07-07 | 2010-07-07 | Integral joint tubing by upset forging processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101906941A CN101906941A (en) | 2010-12-08 |
| CN101906941B true CN101906941B (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010219343 Active CN101906941B (en) | 2010-07-07 | 2010-07-07 | Integral joint tubing by upset forging processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101906941B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563220A (en) * | 2010-12-16 | 2012-07-11 | 株式会社新三兴钢管 | Threaded steel pipe for piping |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133576A (en) * | 1991-02-28 | 1992-07-28 | Barnhill W J | Carbide coated blast tube construction for use in oil and gas well completion across perforations |
| CN2351541Y (en) * | 1998-08-27 | 1999-12-01 | 辽河石油勘探局钻井二公司 | Non-hoop double-stage synchronous screwed pipe |
| CN101041173A (en) * | 2007-02-14 | 2007-09-26 | 杨波 | Method and device for the forming of upsetting die of integral joint oil tubing |
| CN201159053Y (en) * | 2007-07-13 | 2008-12-03 | 杨波 | End main body shaping integral joint tubing |
-
2010
- 2010-07-07 CN CN 201010219343 patent/CN101906941B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133576A (en) * | 1991-02-28 | 1992-07-28 | Barnhill W J | Carbide coated blast tube construction for use in oil and gas well completion across perforations |
| CN2351541Y (en) * | 1998-08-27 | 1999-12-01 | 辽河石油勘探局钻井二公司 | Non-hoop double-stage synchronous screwed pipe |
| CN101041173A (en) * | 2007-02-14 | 2007-09-26 | 杨波 | Method and device for the forming of upsetting die of integral joint oil tubing |
| CN201159053Y (en) * | 2007-07-13 | 2008-12-03 | 杨波 | End main body shaping integral joint tubing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101906941A (en) | 2010-12-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HULUDAO LONGYUAN OIL MECHANICAL + ASSORT EQUIPMENT Free format text: FORMER OWNER: DU YANG Effective date: 20140620 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140620 Address after: 125003 Huludao Economic Development Zone, Liaoning, Mount Huangshan street, No. 57 Patentee after: Huludao Longyuan Oil Mechanical & Assort Equipment Co., Ltd. Address before: 125003 Huludao province Liaoning city Longgang District Jinhu Road Longyuan extraction equipment Co. Ltd Patentee before: Du Yang |