CN101934469A - Manufacturing method of pup joint - Google Patents
Manufacturing method of pup joint Download PDFInfo
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- CN101934469A CN101934469A CN 201010227395 CN201010227395A CN101934469A CN 101934469 A CN101934469 A CN 101934469A CN 201010227395 CN201010227395 CN 201010227395 CN 201010227395 A CN201010227395 A CN 201010227395A CN 101934469 A CN101934469 A CN 101934469A
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- short material
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- flaw detection
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Abstract
The invention relates to a manufacturing method of a pup joint, which is characterized by comprising the following processing steps: (1) thermal treatment, straightening and flaw detection of a pipe body: the thermal treatment process comprises quenching and tempering; after thermal treatment is completed, carrying out full-length straightening on the pipe body with a six-roller straightener; and carrying out full-length flaw detection on the pipe body with a flaw detector; (2) saw-cutting: saw-cutting the pipe body after thermal treatment, straightening and flaw detection into a short material with a sawing machine; (3) initial machining: flattening the saw mouth of the end surface of the short material on the sawing machine, machining an excircle of the obtained short material into Phi132 plus or minus 0.3mm with the sawing machine, and then polishing the inner surface of the short material pipe body at 80-120mm from a port with an automatic sharpening machine to remove surface scale; (4) welding: directly welding a male joint and a female joint with two ends of the short material pipe body respectively on a continuous welding machine; (5) thermal treatment of welding seams: quenching and tempering the welding seams with a medium-frequency induction coil; and (6) machining. The manufacturing method has stable welding process and lower machining cost.
Description
Technical field
The present invention relates to a kind of manufacture method of short drill pipe, especially a kind of oil drilling belongs to oil drill rocker manufacturing technology field with the manufacture method of short drill pipe.
Background technology
Short drill pipe is connected as the length adjustment of drilling rod and drilling rod and crossover sub transition, at home, be used widely in the outer oil drilling; At present, the general employing of short drill pipe manufacturing technology has two kinds of manufacture methods:
1, whole processing:
Work flow is: round steel is selected for use → sawing → deep hole drilling → heat treatment → aligning → flaw detection → machined (pin and box sub screw thread and sharp processing, body sharp processing) → phosphatization → finished product.
Concrete scheme is:
1. round steel select for use, sawing: select for use than the large-sized slightly round steel after forging of finished product tool joint external diameter, material should with the tool joint material near or consistent when heat treatment (guarantee can satisfy performance requirement), and sawing is into about the length of 1550mm;
2. deep hole drilling: adopt the depth drill lathe that round steel is bored circular hole, the lathe ability should guarantee to bore more than the dark 800mm at least, can not form serious cutter or the step of connecing at inwall again simultaneously, otherwise ftractures easily during heat treatment;
3. heat treatment, aligning, flaw detection: because the easy quenching degree of joint material, heat treatment can only be selected oil-bath type for use;
4. machined: on gas thread machine for threading bed, process the pin and box sub screw thread earlier, the profile of back whole body of processing on common simple nc machine;
5. phosphatization: mainly be the screw thread phosphatization, but because status of equipment limit can only whole total length phosphatization processing;
Whole process need dispose deep hole rig, gas thread machine for threading bed etc., than processing the equipment cost height that tool joint is disposed separately, because heat treated uncertainty causes qualification rate low, and nearly 50% turning amount makes lumber recovery low, thereby the manufacturing cost height, price is also high.
2, welding processing:
The employing method is consistent with the manufacture method of conventional length drilling rod, and its work flow is: and body selects for use → and sawing → end upsetting → butt welding connects back body heat treatment → aligning → flaw detection → with joint friction welding → weld seam heat treatment → machined → finished product.
Concrete scheme is:
1. body select for use, sawing: select suitable body for use, with the cut lengths of its sawing into about 1200mm;
2. end upsetting: with end upsetting; Because pipe is short, existing body anchor clamps can't use when end upsetting, need the short anchor clamps of customization, and short body gripping section cause easily skidding at the compressing process middle tube body, is difficult to guarantee the thickening quality;
3. body heat treatment:, can only connect the back in butt welding and produce according to the normal heat treatment process because pipe is short;
4. align, detect a flaw: can't onlinely carry out, can only carry out by hand;
5. friction welding: on the welding machine male joint, female joint are directly being welded with the body two ends respectively continuously; When on continuous welding machine, welding,, need remove one and overlap centralizer and oil cylinder owing to manage material short (about 0.9 meter) and have various outer diameter, only use a sleeve clamp clamping, so the phenomenon that body easily skids when existing in upset equally during clamping can't guarantee welding quality, it is overproof to occur the straight degree of welding simultaneously.
6. weld seam heat treatment: carry out according to common process;
7. machined: on 1319 simple nc machines, fine finishining is carried out on the surface, weld zone, finished finished product.
Welding processing is processed with respect to integral body, and material and production cost are lower, but in end upsetting, friction welding twice manufacturing procedure, because raw material and equipment state, make that the production difficulty is bigger, what be difficult to simultaneously to guarantee to produce is stable, thereby it is low to cause product directly to be spent, and product quality is not high; Because the restriction of upset end length, traditional method of indicating the pronunciation of a Chinese character welding times again is limited.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the manufacture method of the stable short drill pipe of a kind of welding process is provided, and can guarantee product quality.
According to technical scheme provided by the invention, the manufacture method of described short drill pipe may further comprise the steps:
(1) body heat treatment, aligning, flaw detection: Technology for Heating Processing is a quenching+tempering process, and hardening media is a water, and hardening heat is that 880～900 ℃, Quenching Soaking Time are 110～130 minutes; Temperature is 620～640 ℃, and tempering insulation time is 110～130 minutes; After finishing, heat treatment body is carried out the total length aligning with six-roller straightener; The aligning back is carried out the total length flaw detection with defectoscope to body;
(2) sawing: will become 0.85～0.95 meter short material with the sawing machine sawing through the body after heat treatment, aligning, the flaw detection;
(3) machined just: on lathe short material is carried out the equating of end face saw kerf, the cylindrical that will lack material with lathe is worked into Φ 132 ± 0.3mm again, then to the inner surface of short material body in port 80～120mm with automatic sharpening machine polishing removal surface scale;
(4) welding: on the welding machine male joint, female joint are directly being welded with the two ends of short material body respectively continuously;
(5) weld seam heat treatment: use Medium frequency induction coil butt welded seam to quench and temper, hardening media is a water, and hardening heat is 880～900 ℃, and temperature retention time is 590～610 seconds; Temperature is 650～670 ℃, and temperature retention time is 590～610 seconds;
(6) machined:, be processed into required profile and size and be finished product on the lathe the short material after weld seam heat treatment being carried out sharp processing.
Advantage of the present invention is as follows:
(1) do not increase any new process equipment;
(2) the body source easily;
(3) need not end upsetting, the quality problems of having avoided short material in the thickening process, to occur;
(4) body length can be controlled about 9 meters length, thereby has reduced the restriction of heat treatment to short material, has made things convenient for aligning, total length flaw detection simultaneously, and can be after heat treatment the sawing cut lengths;
(5) during friction welding, the variation of frock clamp is consistent during with ordinary production, like this limited guarantee welding quality and straight degree, offset in reasonable range;
(6) because body does not have upset end, even when therefore defective, in time the traditional method of indicating the pronunciation of a Chinese character is reused;
(7) on 1319 simple nc machines during machined, owing to adopt staple joint tong external diameter and hold out against hydrophthalmia as benchmark, so the concentricity of body and joint is higher after the machined, more can satisfy the use of drilling well;
(8) processing cost is lower.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Defectoscope used in the present invention is the CJW-10000 type magnaflux that defectoscope can adopt Sheyang County sharp moral defect-detecting equipment Manufacturing Co., Ltd to produce;
Six-roller straightener used in the present invention can adopt Wuxi City Xishan District E Hu town to swing the six-roller straightener that mouthful new Jin Yu machinery plant produces;
The Medium frequency induction coil that Medium frequency induction coil used in the present invention can adopt land far away, Shanghai Intermediate Frequency Induction Heating Equipment Co., Ltd to produce.
Embodiment one: a kind of manufacture method of short drill pipe comprises following processing step:
(1) body heat treatment, aligning, flaw detection: Technology for Heating Processing is a quenching+tempering process, and hardening media is a water, and hardening heat is that 880 ℃, Quenching Soaking Time are 130 minutes; Temperature is 620 ℃, and tempering insulation time is 130 minutes; After finishing, heat treatment body is carried out the total length aligning with six-roller straightener; The aligning back is carried out the total length flaw detection with defectoscope to body;
(2) sawing: will become 0.85 meter short material with the sawing machine sawing through the body after heat treatment, aligning, the flaw detection;
(3) machined just: on lathe short material is carried out the equating of end face saw kerf, the cylindrical that will lack material with lathe is worked into Φ 131.7mm again, then to the inner surface of short material body in the port 80mm with automatic sharpening machine polishing removal surface scale;
(4) welding: on the welding machine male joint, female joint are directly being welded with the two ends of short material body respectively continuously;
(5) weld seam heat treatment: use Medium frequency induction coil butt welded seam to quench and temper, hardening media is a water, and hardening heat is 880 ℃, and temperature retention time is 610 seconds; Temperature is 650 ℃, and temperature retention time is 610 seconds;
(6) machined:, be processed into required profile and size and be finished product on the lathe the short material after weld seam heat treatment being processed profile.
Embodiment two: a kind of manufacture method of short drill pipe comprises following processing step:
(1) body heat treatment, aligning, flaw detection: Technology for Heating Processing is a quenching+tempering process, and hardening media is a water, and hardening heat is that 900 ℃, Quenching Soaking Time are 110 minutes; Temperature is 640 ℃, and tempering insulation time is 110 minutes; After finishing, heat treatment body is carried out the total length aligning with six-roller straightener; The aligning back is carried out the total length flaw detection with defectoscope to body;
(2) sawing: will become 0.95 meter short material with the sawing machine sawing through the body after heat treatment, aligning, the flaw detection;
(3) machined just: on lathe short material is carried out the equating of end face saw kerf, the cylindrical that will lack material with lathe is worked into Φ 132.3mm again, then to the inner surface of short material body in the port 120mm with automatic sharpening machine polishing removal surface scale;
(4) welding: on the welding machine male joint, female joint are directly being welded with the two ends of short material body respectively continuously;
(5) weld seam heat treatment: use Medium frequency induction coil butt welded seam to quench and temper, hardening media is a water, and hardening heat is 900 ℃, and temperature retention time is 590 seconds; Temperature is 670 ℃, and temperature retention time is 590 seconds;
(6) machined:, be processed into required profile and size and be finished product on the lathe the short material after weld seam heat treatment being processed profile.
Embodiment three: a kind of manufacture method of short drill pipe comprises following processing step:
(1) body heat treatment, aligning, flaw detection: Technology for Heating Processing is a quenching+tempering process, and hardening media is a water, and hardening heat is that 890 ℃, Quenching Soaking Time are 120 minutes; Temperature is 630 ℃, and tempering insulation time is 120 minutes; After finishing, heat treatment body is carried out the total length aligning with six-roller straightener; The aligning back is carried out the total length flaw detection with defectoscope to body;
(2) sawing: will become 0.9 meter short material with the sawing machine sawing through the body after heat treatment, aligning, the flaw detection;
(3) machined just: on lathe short material is carried out the equating of end face saw kerf, the cylindrical that will lack material with lathe is worked into Φ 132mm again, then to the inner surface of short material body in the port 100mm with automatic sharpening machine polishing removal surface scale;
(4) welding: on the welding machine male joint, female joint are directly being welded with the two ends of short material body respectively continuously;
(5) weld seam heat treatment: use Medium frequency induction coil butt welded seam to quench and temper, hardening media is a water, and hardening heat is 890 ℃, and temperature retention time is 600 seconds; Temperature is 660 ℃, and temperature retention time is 600 seconds;
(6) machined:, be processed into required profile and size and be finished product on the lathe the short material after weld seam heat treatment being processed profile.
Claims (1)
1. the manufacture method of a short drill pipe is characterized in that, comprises following processing step:
(1) body heat treatment, aligning, flaw detection: Technology for Heating Processing is a quenching+tempering process, and hardening media is a water, and hardening heat is that 880～900 ℃, Quenching Soaking Time are 110～130 minutes; Temperature is 620～640 ℃, and tempering insulation time is 110～130 minutes; After finishing, heat treatment body is carried out the total length aligning with six-roller straightener; The aligning back is carried out the total length flaw detection with defectoscope to body;
(2) sawing: will become 0.85～0.95 meter short material with the sawing machine sawing through the body after heat treatment, aligning, the flaw detection;
(3) machined just: on lathe short material is carried out the equating of end face saw kerf, the cylindrical that will lack material with lathe is worked into Φ 132 ± 0.3mm again, then to the inner surface of short material body in port 80～120mm with automatic sharpening machine polishing removal surface scale;
(4) welding: on the welding machine male joint, female joint are directly being welded with the two ends of short material body respectively continuously;
(5) weld seam heat treatment: use Medium frequency induction coil butt welded seam to quench and temper, hardening media is a water, and hardening heat is 880～900 ℃, and temperature retention time is 590～610 seconds; Temperature is 650～670 ℃, and temperature retention time is 590～610 seconds;
(6) machined:, be processed into required profile and size and be finished product on the lathe the short material after weld seam heat treatment being processed profile.
Priority Applications (1)
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|---|---|---|---|
| CN 201010227395 CN101934469A (en) | 2010-07-09 | 2010-07-09 | Manufacturing method of pup joint |
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| CN 201010227395 CN101934469A (en) | 2010-07-09 | 2010-07-09 | Manufacturing method of pup joint |
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| CN101934469A true CN101934469A (en) | 2011-01-05 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014306A (en) * | 2012-12-14 | 2013-04-03 | 中国石油集团长城钻探工程有限公司工程服务公司 | Novel heat treatment process of drilling rod welding line of bainite/martensite mixed steel material |
| CN103056613A (en) * | 2012-12-25 | 2013-04-24 | 江苏和信石油机械有限公司 | Production method of special mineral prospecting drill rod |
| CN103753137A (en) * | 2013-12-25 | 2014-04-30 | 柳州市鱼峰区水南机械厂 | Method for machining locking rod |
| CN103753163A (en) * | 2013-12-31 | 2014-04-30 | 梧州市三禾添佰利五金加工有限公司 | Woodworking cutting tool machining method |
| 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 |
| CN110102985A (en) * | 2019-06-05 | 2019-08-09 | 刘艺纯 | Impact the reproducing method of screw thread drill steel |
| CN110170801A (en) * | 2019-06-05 | 2019-08-27 | 刘艺纯 | Impact the manufacturing method of screw thread drill steel |
| CN110640414A (en) * | 2019-09-29 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Processing technology of directional drill rod |
| CN111113055A (en) * | 2019-12-05 | 2020-05-08 | 中煤科工集团西安研究院有限公司 | Preparation method of non-magnetic drill rod for directional drilling of coal mine tunnel |
| CN113199203A (en) * | 2021-04-29 | 2021-08-03 | 共享铸钢有限公司 | Method for repairing defects of steel castings |
| CN115194424A (en) * | 2022-07-04 | 2022-10-18 | 上海应用技术大学 | Hard alloy welding tool and preparation method thereof |
| CN115284012A (en) * | 2021-12-27 | 2022-11-04 | 天津北特汽车零部件有限公司 | Automatic production line for friction welding hollow damper piston rod |
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| CN1690241A (en) * | 2004-04-28 | 2005-11-02 | 宝山钢铁股份有限公司 | High-strength drilling rod for petroleum and method for making same |
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| CN101581200A (en) * | 2009-05-31 | 2009-11-18 | 盘锦辽河油田派普钻具制造有限公司 | 120 steel grade drill pipe and manufacturing process method thereof |
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2010
- 2010-07-09 CN CN 201010227395 patent/CN101934469A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1690241A (en) * | 2004-04-28 | 2005-11-02 | 宝山钢铁股份有限公司 | High-strength drilling rod for petroleum and method for making same |
| US20070261226A1 (en) * | 2006-05-09 | 2007-11-15 | Noble Drilling Services Inc. | Marine riser and method for making |
| CN101581200A (en) * | 2009-05-31 | 2009-11-18 | 盘锦辽河油田派普钻具制造有限公司 | 120 steel grade drill pipe and manufacturing process method thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014306A (en) * | 2012-12-14 | 2013-04-03 | 中国石油集团长城钻探工程有限公司工程服务公司 | Novel heat treatment process of drilling rod welding line of bainite/martensite mixed steel material |
| CN103056613A (en) * | 2012-12-25 | 2013-04-24 | 江苏和信石油机械有限公司 | Production method of special mineral prospecting drill rod |
| CN103753137A (en) * | 2013-12-25 | 2014-04-30 | 柳州市鱼峰区水南机械厂 | Method for machining locking rod |
| CN103753163A (en) * | 2013-12-31 | 2014-04-30 | 梧州市三禾添佰利五金加工有限公司 | Woodworking cutting tool machining method |
| CN103753163B (en) * | 2013-12-31 | 2016-04-27 | 梧州市三禾添佰利五金加工有限公司 | A kind of processing method of wood cutter |
| 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 |
| CN110102985A (en) * | 2019-06-05 | 2019-08-09 | 刘艺纯 | Impact the reproducing method of screw thread drill steel |
| CN110170801A (en) * | 2019-06-05 | 2019-08-27 | 刘艺纯 | Impact the manufacturing method of screw thread drill steel |
| CN110640414A (en) * | 2019-09-29 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Processing technology of directional drill rod |
| CN110640414B (en) * | 2019-09-29 | 2021-09-07 | 中煤科工集团重庆研究院有限公司 | Processing technology of directional drill rod |
| CN111113055A (en) * | 2019-12-05 | 2020-05-08 | 中煤科工集团西安研究院有限公司 | Preparation method of non-magnetic drill rod for directional drilling of coal mine tunnel |
| CN111113055B (en) * | 2019-12-05 | 2021-10-22 | 中煤科工集团西安研究院有限公司 | Preparation method of non-magnetic drill rod for directional drilling of coal mine tunnel |
| CN113199203A (en) * | 2021-04-29 | 2021-08-03 | 共享铸钢有限公司 | Method for repairing defects of steel castings |
| CN115284012A (en) * | 2021-12-27 | 2022-11-04 | 天津北特汽车零部件有限公司 | Automatic production line for friction welding hollow damper piston rod |
| CN115194424A (en) * | 2022-07-04 | 2022-10-18 | 上海应用技术大学 | Hard alloy welding tool and preparation method thereof |
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Application publication date: 20110105 |