CN113263072A - Collinear production process of low-carbon microalloy and high-alloy corrosion-resistant coiled tubing - Google Patents
Collinear production process of low-carbon microalloy and high-alloy corrosion-resistant coiled tubing Download PDFInfo
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- CN113263072A CN113263072A CN202110813647.6A CN202110813647A CN113263072A CN 113263072 A CN113263072 A CN 113263072A CN 202110813647 A CN202110813647 A CN 202110813647A CN 113263072 A CN113263072 A CN 113263072A
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- Prior art keywords
- steel strip
- heat treatment
- coiled tubing
- steel
- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
- B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/083—Supply, or operations combined with supply, of strip material
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Earth Drilling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to the technical field of coiled tubing manufacturing, and provides a collinear production process of a low-carbon microalloy and high-alloy corrosion-resistant coiled tubing, which comprises the steps of opening a steel coil on a hydraulic mandrel of an uncoiler to form a steel strip, enabling the steel strip to enter a pinch leveler and a shearing butt welder, shearing the end part of the steel strip into an inclined end surface of 45 degrees and butt welding, heating and flattening the welded steel strip by adopting a medium-frequency butt welding seam, carrying out X-ray butt welding seam flaw detection and eddy current flaw detection, and finally curling the long welded steel strip; opening a large steel coil into a long steel strip, entering an edge trimmer for trimming, entering a forming machine for rolling into a continuous tube, removing inner and outer burrs at a welding seam, carrying out heat treatment on the welding seam, then entering a sizing mill for sizing, carrying out heat treatment on the whole tube, and finally curling the continuous tube; has the advantages that: the low-carbon microalloy coiled tubing and the high-alloy corrosion-resistant coiled tubing realize collinear production, have small investment and high production line utilization rate, and can weld coiled tubing with large diameter and large wall thickness.
Description
Technical Field
The invention relates to the technical field of coiled tubing manufacturing, in particular to a collinear production process of a low-carbon microalloy and high-alloy corrosion-resistant coiled tubing.
Background
The Coiled Tubing (CT) is a new type oil gas tubing with high strength, high plasticity and certain corrosion resistance, and a single screwed joint with a length of thousands of meters, and can be wound on a roller for field operation in oil field. The continuous pipe operation has the unique advantages of high operation efficiency, less stratum damage, small occupied area, reusability and the like, and is widely applied in the world.
The coiled tubing is mainly divided into low-carbon micro-alloy coiled tubing and high-alloy corrosion-resistant coiled tubing in terms of material. The current mainstream technology in the industry is to weld a low-carbon micro-alloy continuous oil pipe by adopting a high-frequency welding process and weld a high-alloy continuous oil pipe by adopting a laser welding process. The laser welding production line is established independently, so that the defects of large investment, poor production line utilization rate, incapability of welding large-diameter and large-wall-thickness continuous oil pipes and the like can be caused.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a collinear production process of a low-carbon microalloy and high-alloy corrosion-resistant continuous oil pipe.
The new technical scheme adopted by the invention is as follows: the utility model provides a low carbon microalloy and corrosion-resistant coiled tubing collineation production technology of high alloy, includes that the steel band connects long and tubulation, the steel band connect long including material loading, open a book, press from both sides and send the flattening, cut butt welding, annealing and roll flat, x ray, eddy current inspection and steel band curl, tubulation include that the steel band is opened a book, the deburring, the shaping, high frequency welding, get rid of inside and outside burr, welding seam heat treatment, sizing, whole pipe heat treatment and coiled tubing curl, coiled tubing collineation production's process flow is:
1) lengthening of steel strip
The method comprises the following steps of (1) loading a steel coil on a hydraulic mandrel of an uncoiler by using a feeding trolley, opening the steel coil into a steel strip by using the uncoiler, enabling the steel strip to enter a pinch leveler, leveling the bent steel strip and then enter a shearing butt welder, shearing the end part of the steel strip into a 45-degree inclined end surface by using the shearing butt welder, carrying out 45-degree angle butt welding on two adjacent steel strips, reserving a welding seam between the welded steel strips, heating and flattening the welding seam by using a medium frequency, carrying out flaw detection on the welding seam by using an X ray after cooling the welding seam, carrying out eddy current flaw detection on the surface of the whole welded steel strip, and finally curling the welded steel strip into a large steel coil;
2) pipe making
Feeding the large steel coil into a guide roller, opening the large steel coil into a long steel strip by using an uncoiler, trimming the long steel strip in an edge trimmer, feeding the trimmed long steel strip into a forming machine to be rolled into a continuous tube, wherein two sides of the continuous tube are not closed at the moment, melting two sides of the continuous tube by using a high-frequency welding machine, extruding by using an extruding roller, forming a welding seam on the extruded continuous tube, removing internal and external burrs at the welding seam, performing heat treatment on the welding seam by using medium-frequency heating to remove internal stress of the continuous tube, then feeding the continuous tube into a sizing mill to size the continuous tube, performing heat treatment on the whole continuous tube to remove the internal stress, and finally curling the continuous tube.
The shearing butt welding machine adopts a plasma welding process, is provided with an argon gas protection device, and is compatible with the lengthening welding of low-carbon micro-alloy and high-alloy corrosion-resistant continuous oil pipe steel strips.
The high-frequency welding machine is provided with an argon gas protection device and is compatible with low-carbon micro-alloy and high-alloy corrosion-resistant coiled tubing steel strip forming high-frequency welding.
The heat treatment comprises weld seam heat treatment and whole tube heat treatment.
The whole-tube heat treatment comprises air cooling, heat preservation and water cooling combined heat treatment, and the production line is compatible with the whole-tube heat treatment process meeting the requirements of low-carbon microalloy and high-alloy corrosion-resistant continuous oil tubes.
The invention has the following beneficial effects: the low-carbon microalloy coiled tubing and the high-alloy corrosion-resistant coiled tubing realize collinear production, have small investment and high production line utilization rate, and can weld coiled tubing with large diameter and large wall thickness.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
the utility model provides a low carbon microalloy and corrosion-resistant coiled tubing collineation production technology of high alloy, includes that the steel band connects long and tubulation, the steel band connect long including material loading, open a book, press from both sides and send the flattening, cut butt welding, annealing and roll flat, x ray, eddy current inspection and steel band curl, tubulation include that the steel band is opened a book, the deburring, the shaping, high frequency welding, get rid of inside and outside burr, welding seam heat treatment, sizing, whole pipe heat treatment and coiled tubing curl, coiled tubing collineation production's process flow is:
1) lengthening of steel strip
The method comprises the following steps of (1) loading a steel coil on a hydraulic mandrel of an uncoiler by using a feeding trolley, opening the steel coil into a steel strip by using the uncoiler, enabling the steel strip to enter a pinch leveler, leveling the bent steel strip and then enter a shearing butt welder, shearing the end part of the steel strip into a 45-degree inclined end surface by using the shearing butt welder, carrying out 45-degree angle butt welding on two adjacent steel strips, reserving a welding seam between the welded steel strips, heating and flattening the welding seam by using a medium frequency, carrying out flaw detection on the welding seam by using an X ray after cooling the welding seam, carrying out eddy current flaw detection on the surface of the whole welded steel strip, and finally curling the welded steel strip into a large steel coil;
2) pipe making
Feeding the large steel coil into a guide roller, opening the large steel coil into a long steel strip by using an uncoiler, trimming the long steel strip in an edge trimmer, feeding the trimmed long steel strip into a forming machine to be rolled into a continuous tube, wherein two sides of the continuous tube are not closed at the moment, melting two sides of the continuous tube by using a high-frequency welding machine, extruding by using an extruding roller, forming a welding seam on the extruded continuous tube, removing internal and external burrs at the welding seam, performing heat treatment on the welding seam by using medium-frequency heating to remove internal stress of the continuous tube, then feeding the continuous tube into a sizing mill to size the continuous tube, performing heat treatment on the whole continuous tube to remove the internal stress, and finally curling the continuous tube.
The shearing butt welding machine adopts a plasma welding process, is provided with an argon gas protection device, and is compatible with the lengthening welding of low-carbon micro-alloy and high-alloy corrosion-resistant continuous oil pipe steel strips.
The high-frequency welding machine is provided with an argon gas protection device and is compatible with low-carbon micro-alloy and high-alloy corrosion-resistant coiled tubing steel strip forming high-frequency welding.
The heat treatment comprises weld seam heat treatment and whole tube heat treatment.
The whole-tube heat treatment comprises air cooling, heat preservation and water cooling combined heat treatment, and the production line is compatible with the whole-tube heat treatment process meeting the requirements of low-carbon microalloy and high-alloy corrosion-resistant continuous oil tubes.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides a low carbon microalloy and corrosion-resistant coil tubing collineation production technology of high alloy, includes that the steel band connects long and tubulation, the steel band connect long including material loading, open a book, press from both sides and send the flattening, cut butt welding, annealing and roll flat, x ray, eddy current inspection and steel band curl, tubulation include that the steel band is opened a book, the deburring, shaping, high frequency welding, get rid of inside and outside burr, welding seam heat treatment, sizing, whole heat treatment of pipe and coil, its characterized in that: the process flow of the collinear production of the continuous oil pipes comprises the following steps:
1) lengthening of steel strip
The method comprises the following steps of (1) loading a steel coil on a hydraulic mandrel of an uncoiler by using a feeding trolley, opening the steel coil into a steel strip by using the uncoiler, enabling the steel strip to enter a pinch leveler, leveling the bent steel strip and then enter a shearing butt welder, shearing the end part of the steel strip into a 45-degree inclined end surface by using the shearing butt welder, carrying out 45-degree angle butt welding on two adjacent steel strips, reserving a welding seam between the welded steel strips, heating and flattening the welding seam by using a medium frequency, carrying out flaw detection on the welding seam by using an X ray after cooling the welding seam, carrying out eddy current flaw detection on the surface of the whole welded steel strip, and finally curling the welded steel strip into a large steel coil;
2) pipe making
Feeding the large steel coil into a guide roller, opening the large steel coil into a long steel strip by using an uncoiler, trimming the long steel strip in an edge trimmer, feeding the trimmed long steel strip into a forming machine to be rolled into a continuous tube, wherein two sides of the continuous tube are not closed at the moment, melting two sides of the continuous tube by using a high-frequency welding machine, extruding by using an extruding roller, forming a welding seam on the extruded continuous tube, removing internal and external burrs at the welding seam, performing heat treatment on the welding seam by using medium-frequency heating to remove internal stress of the continuous tube, then feeding the continuous tube into a sizing mill to size the continuous tube, performing heat treatment on the whole continuous tube to remove the internal stress, and finally curling the continuous tube.
2. The collinear production process of the low-carbon microalloy and high-alloy corrosion-resistant coiled tubing according to claim 1, characterized in that: the shearing butt welding machine adopts a plasma welding process, is provided with an argon gas protection device, and is compatible with the lengthening welding of low-carbon micro-alloy and high-alloy corrosion-resistant continuous oil pipe steel strips.
3. The collinear production process of the low-carbon microalloy and high-alloy corrosion-resistant coiled tubing according to claim 1, characterized in that: the high-frequency welding machine is provided with an argon gas protection device and is compatible with low-carbon micro-alloy and high-alloy corrosion-resistant coiled tubing steel strip forming high-frequency welding.
4. The collinear production process of the low-carbon microalloy and high-alloy corrosion-resistant coiled tubing according to claim 1, characterized in that: the heat treatment comprises weld seam heat treatment and whole tube heat treatment.
5. The collinear production process of the low-carbon microalloy and high-alloy corrosion-resistant coiled tubing according to claim 4, characterized in that: the whole-tube heat treatment comprises air cooling, heat preservation and water cooling combined heat treatment, and the production line is compatible with the whole-tube heat treatment process meeting the requirements of low-carbon microalloy and high-alloy corrosion-resistant continuous oil tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813647.6A CN113263072A (en) | 2021-07-19 | 2021-07-19 | Collinear production process of low-carbon microalloy and high-alloy corrosion-resistant coiled tubing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813647.6A CN113263072A (en) | 2021-07-19 | 2021-07-19 | Collinear production process of low-carbon microalloy and high-alloy corrosion-resistant coiled tubing |
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| CN113263072A true CN113263072A (en) | 2021-08-17 |
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| CN202110813647.6A Pending CN113263072A (en) | 2021-07-19 | 2021-07-19 | Collinear production process of low-carbon microalloy and high-alloy corrosion-resistant coiled tubing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075111A (en) * | 2012-07-13 | 2013-05-01 | 宝鸡石油钢管有限责任公司 | Coiled tubing with different strength sections and manufacturing method thereof |
| CN203066880U (en) * | 2012-12-19 | 2013-07-17 | 宝鸡石油钢管有限责任公司 | Material changing corrosion resistant coiled tubing |
| CN105840919A (en) * | 2015-09-08 | 2016-08-10 | 宝鸡石油钢管有限责任公司 | Continuous pipe resistant to H2S corrosion and manufacturing method thereof |
| CN106987782A (en) * | 2017-03-17 | 2017-07-28 | 中国石油天然气集团公司 | A kind of resistance to a small amount of CO2And H2The continuous pipe and its manufacture method of S corrosion |
| CN108942097A (en) * | 2018-07-16 | 2018-12-07 | 杰森能源技术有限公司 | A kind of corrosion-resistant coiled tubing of high frequency induction welding high alloy and preparation method thereof |
| CN111570559A (en) * | 2020-05-18 | 2020-08-25 | 中国石油天然气集团有限公司 | Low-carbon high-strength austenitic stainless steel continuous tube and preparation method thereof |
-
2021
- 2021-07-19 CN CN202110813647.6A patent/CN113263072A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075111A (en) * | 2012-07-13 | 2013-05-01 | 宝鸡石油钢管有限责任公司 | Coiled tubing with different strength sections and manufacturing method thereof |
| CN203066880U (en) * | 2012-12-19 | 2013-07-17 | 宝鸡石油钢管有限责任公司 | Material changing corrosion resistant coiled tubing |
| CN105840919A (en) * | 2015-09-08 | 2016-08-10 | 宝鸡石油钢管有限责任公司 | Continuous pipe resistant to H2S corrosion and manufacturing method thereof |
| CN106987782A (en) * | 2017-03-17 | 2017-07-28 | 中国石油天然气集团公司 | A kind of resistance to a small amount of CO2And H2The continuous pipe and its manufacture method of S corrosion |
| CN108942097A (en) * | 2018-07-16 | 2018-12-07 | 杰森能源技术有限公司 | A kind of corrosion-resistant coiled tubing of high frequency induction welding high alloy and preparation method thereof |
| CN111570559A (en) * | 2020-05-18 | 2020-08-25 | 中国石油天然气集团有限公司 | Low-carbon high-strength austenitic stainless steel continuous tube and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 中国冶金百科全书总编辑委员会等: "《中国冶金百科全书 冶金建设（上）》", 31 January 1999 * |
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Application publication date: 20210817 |