CN1199809A - Production technology of integral upset hollow pumping rod - Google Patents
Production technology of integral upset hollow pumping rod Download PDFInfo
- Publication number
- CN1199809A CN1199809A CN 97103293 CN97103293A CN1199809A CN 1199809 A CN1199809 A CN 1199809A CN 97103293 CN97103293 CN 97103293 CN 97103293 A CN97103293 A CN 97103293A CN 1199809 A CN1199809 A CN 1199809A
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- China
- Prior art keywords
- upsetting squeeze
- pumping rod
- squeeze
- upsetting
- production technology
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000005516 engineering process Methods 0.000 title claims description 13
- 238000005086 pumping Methods 0.000 title abstract 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims abstract description 3
- 238000005496 tempering Methods 0.000 claims abstract 2
- 238000005482 strain hardening Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 5
- 239000003607 modifier Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 3
- 238000000605 extraction Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000010422 painting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 8
- 238000005242 forging Methods 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 206010039509 Scab Diseases 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The production process of integral upset hollow pumping rod includes the steps of heating steel pipe end to forge temperature, the first position upset in mold, the second position upset after re-heating to form the shape before cold machining of outer thread, twice upset to form the shape before cold machining of inner thread, modification, hot straightening, tempering, flaw detection, cold machining, inspection, painting and packing. The pumping rod thus machined has no folding, crack and other flaw, has high mechanical performance and can meet the requirement of dense oil extraction from deep well up to 1200m.
Description
Hollow rod production technology when the present invention relates to oilfield exploitation viscous crude, high oil with fixed attention in the oil pumper oil pipe.
At present, produce that method that hollow rod mainly adopts rotation friction weldering at a high speed is welded threaded joints and the body of rod.The roof pressure power of giving when using the welding of this kind method, the friction time can not equate by the root root, welding position metallographic structure at high temperature changes, the two-part concentricity of quilt weldering can not overlap fully and cause the long-pending minimizing of section of weld joint, these reasons to have disconnected taking off (bar breaks) accident to take place when making hollow rod in use.Inside and outside overlap appears in the commissure when welding simultaneously, in handling, adopt the bit bore method to clear up during overlap, stay the sharp interior ring of corner angle after the cleaning easily, this ring the phenomenon of card cable or scratch cable insulation crust often occurs when playing cable, thereby causes work inconvenience or cable is scrapped.Though the manufacturer that has has adopted upsetting squeeze technology, what adopt is a upsetting squeeze moulding process, because the external mold and the die cavity space between the core bar of this technology of application are big, occurs folding easily, and break-off accident in use easily takes place hollow rod.In addition, the hollow rod that said method is produced, its mechanical performance index do not reach " SY5550-92 hollow rod) " standard-required, can not adapt to the exploitation requirement that surpasses 1200 meters deep-well viscous crude.
The objective of the invention is by using a kind of production technology by whole (upsetting squeeze) hollow rod, produce mechanical performance index and reach " SY5550-92 hollow rod " standard, and be difficult in using disconnected taking off taken place, make cable descend the hollow rod that can not scratch insulation sheath in the inlet pipe easily again.
Integral body of the present invention (upsetting squeeze) hollow rod production technology is to arrange like this: detect by defectoscope before the processing of upsetting squeeze material steel pipe, detect qualified steel pipe, end length in accordance with regulations is heated in inductor to be put into mould behind the initial forging temperature and carries out first upsetting squeeze; And then be heated to and put into the upsetting squeeze of second upsetting squeeze mould behind the initial forging temperature and go out to treat cold worked male end shape.The secondary upsetting squeeze that uses the same method after the scale blanking goes out the other end, both shape before the cold working of female end.Align while hot after the intact workpiece modifier treatment of upsetting squeeze, the end temper, then carry out eddy current inspection qualified carry out cold working.Spray paint packing, warehouse-in after the hollow rod that processes is qualified on inspection.
The hollow rod that goes out by processes of the present invention owing to adopted upsetting squeeze technology twice, makes garden, the reducing position arc transition of workpiece, and the mechanical property of materials improves, and the product of producing does not have folding, crackle, and groove such as is mingled with at defective; Be difficult for to take place in the use disconnectedly to take off and scratch cable insulation crust phenomenon; Mechanical performance index reaches " SY5550-92 hollow rod " standard-required; Satisfy and surpass the requirement that deep-well is adopted viscous crude below 1200 meters.
Elaborate below in conjunction with drawings and Examples.
Fig. 1 is a process chart of the present invention.
Fig. 2 is the upsetting squeeze operating principle structure chart of technology of the present invention.
Fig. 3 is the workpiece finished figure after the upsetting squeeze cold working of technology of the present invention.
In Fig. 1, advance factory's steel pipe and at first will carry out raw material and recheck operation 1, confirm by defectoscope whether steel pipe exists crackle, folding, absciss layer scabs and defective such as subcutaneous interlayer, confirms grade of steel simultaneously.Steel pipe one end that detection is qualified length in accordance with regulations is placed on the initial forging temperature that is heated to this grade of steel in the inductor, then the end that heats is placed in the counterdie of suitable ready first upsetting squeeze earlier, to good position and clamp steel pipe, then carry out finishing first upsetting squeeze operation 2 after the horizontal upsetting squeeze moulding.Then while hot forming ends put back to again be heated to initial forging temperature in the inductor after, take out desired position of counterdie and the chucking put into second upsetting squeeze, laterally finish second upsetting squeeze operation 3 after the upsetting squeeze moulding.Finish scale blanking operation 4 behind the mould unloading and carry out the upsetting squeeze of the other end.First upsetting squeeze operation 5 of other end upsetting squeeze is identical with the method for operation 2 and operation 3 with the method for second upsetting squeeze operation 6, and the inner chamber of the upper and lower mould that operation that different is 6 is used is different with the shape of the inner chamber of the upper and lower mould of operation 3 application.The shape that operation 2 and operation 3 upsetting squeezes go out is the male end after the cold working, and the shape that operation 5 and operation 6 upsetting squeezes go out is the female end after the cold working.Workpiece after the upsetting squeeze enters operation 7 and carries out modified heat treatment to improve its comprehensive mechanical performance.Enter operation 8 after the modifier treatment immediately and carry out thermal straightening, purpose is to use less power (power) just can align out and finish the workpiece that meets standard-required, for condition has been created in the cold working of postorder.Because cold working is gone in the modified higher inconvenience of workpiece hardness, the two ends of processing must be carried out the temper of operation 9, enter operation 10 carrying out flaw detection after the processing, detect whether workpiece in the heating for multiple times cooling and in quenching crackle takes place and whether the rammer Qizhong has phenomenons such as pipe.Detect qualified workpiece and enter operation 11 cold working, machine and carry out operation 12 sizes and form and position tolerance detection.Carry out spraying paint, pack, putting in storage of operation 13 after qualified.
In Fig. 2, slide plate 2b is fixed on the oil cylinder piston bar 2a, and patrix tire plate 2c links to each other with slide plate 2b, and patrix 2d is fixed on the patrix tire plate 2c; Counterdie tire plate 2f links to each other with workbench 2g, and counterdie 2e is fixed on the counterdie tire plate 2f.The steel pipe 2i of end heating puts into counterdie 2e desired location, tightens steel pipe 2i by moving downward of oil cylinder piston bar 2a.Then the end of core bar 2h is inserted in the steel pipe 2i, the other end is installed on the machine for processing and squeezing, and the traverse motion upsetting squeeze by machine for processing and squeezing goes out the shape that will reach.
Patrix 2d, the counterdie 2e and the core bar 2h that change different die cavities carry out second upsetting squeeze that upsetting squeeze can realize the male end of workpiece, first upsetting squeeze of female end, second upsetting squeeze.
In Fig. 3, the male end of the whole hollow rod 11a of the finished parts after several cold working is screwed into female end, can form and put into the hollow section that oil pick-up tube reaches more than 1600 meter deeply.Be lowered to cable in this hollow section, the electrothermal part dilution viscous crude of cable end or the high oil that coagulates make crude oil be drawn onto ground easily between oil pick-up tube and whole hollow rod.
Claims (3)
1, a kind of integral body (upsetting squeeze) sucker rod production technology, activities are that raw material is rechecked (1), and other end upsetting squeeze is carried out in scale blanking (4) after the end upsetting squeeze, modified then (7), aligning (8), end tempering (9), carrying out flaw detection (10), cold working (11) is until the packing warehouse-in; What it is characterized in that end upsetting squeeze employing is secondary upsetting squeeze moulding, and what aligning operation (8) adopted is thermal straightening.
2, technology according to claim 1 is characterized in that heating while hot after finish respectively first upsetting squeeze (2), (5) and carries out second upsetting squeeze (3), (6) moulding.
3, technology according to claim 1 is characterized in that entering immediately after modifier treatment operation (7) is finished aligning operation (8) and aligns while hot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103293 CN1199809A (en) | 1997-05-16 | 1997-05-16 | Production technology of integral upset hollow pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103293 CN1199809A (en) | 1997-05-16 | 1997-05-16 | Production technology of integral upset hollow pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1199809A true CN1199809A (en) | 1998-11-25 |
Family
ID=5166637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97103293 Pending CN1199809A (en) | 1997-05-16 | 1997-05-16 | Production technology of integral upset hollow pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1199809A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699629A (en) * | 2012-05-29 | 2012-10-03 | 吕少华 | Production method and remanufacturing method for hollow sucker rods |
| CN103008979A (en) * | 2011-09-23 | 2013-04-03 | 吕少华 | Production and refabrication technology for upsetting-type hollow sucker rod |
| CN104588998A (en) * | 2015-01-26 | 2015-05-06 | 内蒙古包钢钢联股份有限公司 | Manufacturing method for short-pitch external thickened oil pipe with upset pipe ends |
| US20160151819A1 (en) * | 2012-08-24 | 2016-06-02 | Michael Eric Johnson | Sucker rod |
| CN106869818A (en) * | 2017-05-04 | 2017-06-20 | 柳富献 | A kind of hollow rod joint |
| US10195699B2 (en) | 2012-08-24 | 2019-02-05 | Trc Services, Inc. | Sucker rod |
-
1997
- 1997-05-16 CN CN 97103293 patent/CN1199809A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008979A (en) * | 2011-09-23 | 2013-04-03 | 吕少华 | Production and refabrication technology for upsetting-type hollow sucker rod |
| CN102699629A (en) * | 2012-05-29 | 2012-10-03 | 吕少华 | Production method and remanufacturing method for hollow sucker rods |
| US20160151819A1 (en) * | 2012-08-24 | 2016-06-02 | Michael Eric Johnson | Sucker rod |
| US10195699B2 (en) | 2012-08-24 | 2019-02-05 | Trc Services, Inc. | Sucker rod |
| CN104588998A (en) * | 2015-01-26 | 2015-05-06 | 内蒙古包钢钢联股份有限公司 | Manufacturing method for short-pitch external thickened oil pipe with upset pipe ends |
| CN106869818A (en) * | 2017-05-04 | 2017-06-20 | 柳富献 | A kind of hollow rod joint |
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