CN112377118B - Large-caliber coiled tubing and manufacturing process thereof - Google Patents
Large-caliber coiled tubing and manufacturing process thereof Download PDFInfo
- Publication number
- CN112377118B CN112377118B CN202011263382.9A CN202011263382A CN112377118B CN 112377118 B CN112377118 B CN 112377118B CN 202011263382 A CN202011263382 A CN 202011263382A CN 112377118 B CN112377118 B CN 112377118B
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- Prior art keywords
- sleeve
- pipe
- equipment
- conveying
- welding
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- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 8
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 101001027631 Homo sapiens Kinesin-like protein KIF20B Proteins 0.000 description 1
- 101001126084 Homo sapiens Piwi-like protein 2 Proteins 0.000 description 1
- 101000590687 Homo sapiens U3 small nucleolar ribonucleoprotein protein MPP10 Proteins 0.000 description 1
- 102100029365 Piwi-like protein 2 Human genes 0.000 description 1
- 102100032497 U3 small nucleolar ribonucleoprotein protein MPP10 Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to the technical field of continuous oil pipe operation, in particular to a large-caliber continuous oil pipe, which comprises a metal inner pipe, wherein a high-density polyethylene outer sleeve is sleeved on the outer wall of the metal inner pipe, a polyvinyl chloride inner sleeve is coaxially arranged on the inner wall of the metal oil pipe, the outer sleeve is a high-density polyethylene sleeve with the thickness of one millimeter, the outer sleeve is bonded with the metal oil pipe through high polymer glue, the inner sleeve is a polyvinyl chloride sleeve with the thickness of one millimeter, and the inner sleeve is bonded with the metal oil pipe through high polymer glue.
Description
Technical Field
The invention relates to the technical field of coiled tubing operation, in particular to a large-caliber coiled tubing and a manufacturing process thereof.
Background
The outer diameter of the existing coiled tubing is 19.1-88.9mm, the steel grade is CT70/CT80/CT90/CT100/CT110, the length is more than or equal to 61m, the existing coiled tubing is generally seamless or welded, and the existing coiled tubing can only be used as a working string or a speed string, and cannot be used as a conveying oil gas or a casing pipe due to the existing inner diameter.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a large-caliber continuous oil pipe and a manufacturing process thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the large-caliber continuous oil pipe comprises a metal inner pipe, wherein the outer wall of the metal inner pipe is sleeved with a high-density polyethylene outer sleeve, and the inner wall of the metal oil pipe is coaxially provided with a polyvinyl chloride inner sleeve.
Preferably, the outer sleeve is a high-density polyethylene sleeve with a thickness of one millimeter, and is bonded with the metal oil pipe through high polymer glue.
Preferably, the inner sleeve is a polyvinyl chloride sleeve with a thickness of one millimeter, and is bonded with the metal oil pipe through high polymer glue.
Preferably, the end part of the metal oil pipe is welded with a connecting ring, the connecting ring is provided with a flange in an integrated manner, and the outer sleeve and the inner sleeve are respectively positioned at two sides in the connecting ring and are bonded through high polymer glue.
The manufacturing process of the large-caliber continuous oil pipe is characterized by comprising the following steps of:
S1, welding an inner pipe, namely conveying a steel belt in a steel belt coiling device to steel pipe preliminary forming equipment to perform a steel pipe preliminary forming process, conveying the steel belt to laser welding equipment to perform welding forming after preliminary forming, performing heat treatment on a welding seam in welding seam heat treatment equipment in a welding formed inner pipe book to eliminate welding seam welding stress, conveying the steel belt to sizing equipment to perform cutting processing, conveying the steel belt to heat treatment equipment to perform heat treatment on the whole inner pipe after finishing processing, conveying the steel belt to steel pipe processing equipment to perform leveling and finishing treatment after finishing treatment, conveying the steel belt to detection equipment to perform nondestructive detection, and coiling a qualified product by the coiling equipment;
S2, bonding the sleeve, namely conveying the coiled outer sleeve and the inner sleeve from two ends of the metal oil pipe simultaneously through pipeline paying-off equipment, wherein the outer sleeve is positioned outside the metal oil pipe, the inner sleeve is inserted into an inner cavity of the metal oil pipe, meanwhile, polymer glue is smeared on the inner wall of the outer sleeve and the outer wall of the inner sleeve, and standing is carried out until the glue is dried when the outer sleeve, the inner sleeve and the metal oil pipe are combined into a whole, so that the bonding of the sleeve is completed;
S3, welding a flange, welding a connecting ring at the end part of the metal oil pipe, and adhering part of the outer sleeve and the inner sleeve extending out of the end part of the metal oil pipe to the inner side and the outer side of the connecting ring by using high polymer glue;
s4, rolling, namely rolling the pipe fitting manufactured in the S3 by using rolling equipment, and manufacturing the finished continuous oil pipe.
The large-caliber continuous oil pipe and the manufacturing process thereof provided by the invention have the beneficial effects that: the anti-corrosion and rust performance of the coiled tubing is effectively improved by additionally arranging the inner sleeve and the outer sleeve, meanwhile, the caliber of the whole tubing is large, the length is long, the number of joints is reduced, and the safe use of the tubing is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a large-caliber coiled tubing and a manufacturing process thereof according to the present invention.
In the figure: 1 high-density polyethylene outer sleeve, 2 metal inner tube, 3 polyvinyl chloride inner sleeve, 4 connecting ring and 5 flange.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1, a large-caliber continuous oil pipe comprises a metal inner pipe 2, wherein a high-density polyethylene outer sleeve 1 is sleeved on the outer wall of the metal inner pipe 2, and a polyvinyl chloride inner sleeve 3 is coaxially arranged on the inner wall of the metal oil pipe 2.
The outer sleeve 1 is a high-density polyethylene sleeve with a thickness of one millimeter, and the outer sleeve 1 is bonded with the metal oil pipe 2 through high polymer glue.
The inner sleeve 3 is a polyvinyl chloride sleeve with the thickness of one millimeter, and the inner sleeve 3 is bonded with the metal oil pipe 2 through high polymer glue.
The end part of the metal oil pipe 2 is welded with a connecting ring 4, a flange 5 is integrally formed on the connecting ring 4, and the outer sleeve 1 and the inner sleeve 3 are respectively positioned on two sides in the connecting ring 4 and are bonded through high polymer glue.
The manufacturing process of the large-caliber continuous oil pipe is characterized by comprising the following steps of:
s1, welding an inner pipe, namely performing a steel pipe preliminary forming process on the steel belt in a steel belt coiling device in a steel pipe preliminary forming device, performing welding forming in a laser welding device after preliminary forming, performing heat treatment on a welding seam in a welding seam heat treatment device in a welding formed inner pipe book to eliminate welding seam welding stress, performing cutting machining in a sizing device, performing heat treatment on the whole inner pipe in the heat treatment device after machining is finished, performing leveling and finishing treatment in a steel pipe machining device after heat treatment is finished, performing nondestructive detection in a detection device, and coiling a qualified product by the coiling device;
S2, bonding the sleeve, namely starting the coiled outer sleeve 1 and the coiled inner sleeve 3 from two ends of the metal oil pipe 2 through pipeline paying-off equipment, wherein the outer sleeve 1 is positioned outside the metal oil pipe 2, the inner sleeve 3 is inserted into an inner cavity of the metal oil pipe 2, meanwhile, polymer glue is smeared on the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 3, and standing is carried out until the glue dries when the three pipes of the outer sleeve 1, the inner sleeve 3 and the metal oil pipe 2 are combined, so that the bonding of the sleeve is completed;
S3, flange welding, namely welding a connecting ring 4 at the end part of the metal oil pipe 2, and bonding part of the outer sleeve 1 and the inner sleeve 3 extending out of the end part of the metal oil pipe 2 at the inner side and the outer side of the connecting ring 4 by using high polymer glue;
s4, rolling, namely rolling the pipe fitting manufactured in the S3 by using rolling equipment, and manufacturing the finished continuous oil pipe.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. The manufacturing process of the large-caliber continuous oil pipe is characterized by comprising the following steps of:
S1, welding an inner pipe, namely conveying a steel belt in a steel belt coiling device to steel pipe preliminary forming equipment to perform a steel pipe preliminary forming process, conveying the steel belt to laser welding equipment to perform welding forming after preliminary forming, conveying the welded inner pipe to welding seam heat treatment equipment to heat treat welding seam to eliminate welding seam welding stress, conveying the welded inner pipe to sizing equipment to perform cutting machining, conveying the welded inner pipe to heat treatment equipment to perform heat treatment on the whole inner pipe after finishing machining, conveying the welded inner pipe to steel pipe processing equipment to perform leveling and finishing treatment after finishing treatment, conveying the welded inner pipe to detection equipment to perform nondestructive detection, and coiling a qualified product by the coiling equipment;
S2, bonding the sleeve, conveying the coiled outer sleeve (1) and the inner sleeve (3) from two ends of the metal inner tube (2) through pipeline paying-off equipment, wherein the outer sleeve (1) is positioned outside the metal inner tube (2), the inner sleeve (3) is inserted into an inner cavity of the metal inner tube (2), meanwhile, polymer glue is smeared on the inner wall of the outer sleeve (1) and the outer wall of the inner sleeve (3), and when the three tubes of the outer sleeve (1), the inner sleeve (3) and the metal inner tube (2) are combined, standing until the glue dries, so that the bonding of the sleeve is completed;
s3, flange welding, namely welding a connecting ring (4) at the end part of the metal inner tube (2), and adhering part of the outer sleeve (1) and the inner sleeve (3) extending out of the end part of the metal inner tube (2) to the inner side and the outer side of the connecting ring (4) by using high polymer glue;
s4, rolling, namely rolling the pipe fitting manufactured in the S3 by using rolling equipment, and manufacturing the finished continuous oil pipe.
2. A process for manufacturing a large diameter coiled tubing according to claim 1, wherein the outer sleeve (1) is a high density polyethylene sleeve having a thickness of one millimeter.
3. A process for manufacturing a large diameter coiled tubing according to claim 1, wherein the inner sleeve (3) is a polyvinyl chloride sleeve having a thickness of one millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263382.9A CN112377118B (en) | 2020-11-12 | 2020-11-12 | Large-caliber coiled tubing and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263382.9A CN112377118B (en) | 2020-11-12 | 2020-11-12 | Large-caliber coiled tubing and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112377118A CN112377118A (en) | 2021-02-19 |
| CN112377118B true CN112377118B (en) | 2024-09-20 |
Family
ID=74583535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011263382.9A Active CN112377118B (en) | 2020-11-12 | 2020-11-12 | Large-caliber coiled tubing and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112377118B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476447A (en) * | 2009-02-02 | 2009-07-08 | 黄学祥 | Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe |
| CN214062884U (en) * | 2020-11-12 | 2021-08-27 | 信达科创（唐山）石油设备有限公司 | Heavy-calibre coiled tubing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030213596A1 (en) * | 2002-05-16 | 2003-11-20 | Davis Robert H. | Tubular goods and liners |
| JP4624391B2 (en) * | 2007-09-28 | 2011-02-02 | パンパシフィック・カッパー株式会社 | Method for detecting breakage of transfer pipe in dry concentrate transfer pipe piping structure |
| CA2641492C (en) * | 2007-10-23 | 2016-07-05 | Fiberspar Corporation | Heated pipe and methods of transporting viscous fluid |
| DE102015117871B4 (en) * | 2015-10-21 | 2018-08-02 | H. Butting Gmbh & Co. Kg | Method for producing a double-walled pipe and double-walled pipe |
| KR101752733B1 (en) * | 2017-01-19 | 2017-06-30 | 주식회사 에코파이프 | Manufacturing method of double wall pipe |
| CN111618122A (en) * | 2020-06-04 | 2020-09-04 | 佛山市重本异型钢管有限公司 | Production process of high-frequency straight-seam electric welding steel pipe |
-
2020
- 2020-11-12 CN CN202011263382.9A patent/CN112377118B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476447A (en) * | 2009-02-02 | 2009-07-08 | 黄学祥 | Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe |
| CN214062884U (en) * | 2020-11-12 | 2021-08-27 | 信达科创（唐山）石油设备有限公司 | Heavy-calibre coiled tubing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112377118A (en) | 2021-02-19 |
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