CN101947714A - Integral processing method for refabrication of waste oil tube - Google Patents

Integral processing method for refabrication of waste oil tube Download PDF

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Publication number
CN101947714A
CN101947714A CN 201010297465 CN201010297465A CN101947714A CN 101947714 A CN101947714 A CN 101947714A CN 201010297465 CN201010297465 CN 201010297465 CN 201010297465 A CN201010297465 A CN 201010297465A CN 101947714 A CN101947714 A CN 101947714A
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China
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oil
waste
tube
wall
oil tube
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CN 201010297465
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Chinese (zh)
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杨永利
孙世杰
李振杰
仲光哲
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Abstract

The invention relates to an integral processing method for refabrication of a waste oil tube, which comprises the steps of: pretreating: selecting a waste oil tube with wall thickness of above 3mm, dismantling a coupling, detecting magnetic flux leakage, cutting threads, removing oil and scales, aligning, blasting sand, and separating by lengths; lining ceramics: filling melted iron subjected to combustion synthesis into a plough groove and a corrosion groove which are eccentrically worn on the inner wall of the oil tube under the action of centrifugal force in a high-speed rotating centrifuge, metallurgically combining with the inner wall of the oil tube, and melting with a transition iron layer under a ceramic layer into a whole; and processing threads: processing threads at a tube discharging end by using a numerical control lathe and a precise carding tool, coating thread grease, and installing the coupling. A new waste-judging standard is made on the basis of the judging standard of the waste oil tube in an oil field, which greatly reduces the waste quantity of the oil tubes, and increases the quantity of repairable oil tubes. The service life of the repaired waste oil tubes is above 5 times longer than that of the original new oil tube, thus the operation cost of the oil field is greatly lowered.

Description

The integral processing method that waste and old oil passageway is made again
Technical field
The invention belongs to electronic product manufacturing industry again, relate to a kind of integral processing method that utilizes the self propagating high temperature synthetic technology that waste and old oil passageway is made again.
Background technology
Being lowered to the tubing string steel pipe in the oil well casing when oil pipe is oil-gas field development, is that crude oil is from the underground passage that is transported to ground.Simultaneously oil pipe also is the second class OCTG that is only second to sleeve pipe in the oil country tubular good, and the consumption in each oil field, whole nation every year can reach few hundred thousand tonnes of.Because of the burn into wearing and tearing greatly reduce the service life of oil pipe, line pipe, particularly along with the development of drilling technology, the quantity of inclined shaft, horizontal well is increasing, because of the sucker rod in inclined shaft, the horizontal well and box cupling under self gravitation and external force effect and the direct contact wear of tube wall serious, make the average less than 2 years in service life of plain tubing.In addition, the corrosive medium in the oil field mining liquid mainly contains CO 2, H 2S, salt solution and sulfate reducing bacteria etc., these corrosive mediums cause oil pipe, sleeve pipe and carrier pipe corrosion failure, and oil well is scrapped, and have a strong impact on crude oil production.At present, the many oil fields of China have entered the middle and later periods mining phase, and oil well reaches more than 50,000 mouthful.Oil pipe bore a hole, break because of burn into wearing and tearing or the generation of fracture accident very frequent, and now the oil field for oil pipe to declare the expense standard relatively stricter, the oil pipe that can make again all is included in the waste oil tube in a large number, in this case, a kind of re-manufacturing technology of waste and old oil passageway has not only reduced the quantity of waste oil tube, also can save very big cost for the oil field.
Summary of the invention
Technical problem to be solved by this invention provides a kind of integral processing method that utilizes the self propagating high temperature synthetic technology that waste and old oil passageway is made again.
For solving the problems of the technologies described above, the invention provides the integral processing method that a kind of waste and old oil passageway is made again, it is characterized in that comprising the following steps:
1, preliminary treatment: select the waste and old oil passageway of wall thickness more than 3mm, unload box cupling, Magnetic Flux Leakage Inspecting, chasing, oil removing scale removal, alignment, sandblast, length sorting;
2, lined ceramics: in the centrifuge of rotation at a high speed, the iron liquid of fusion behind the self-propagating reaction is under action of centrifugal force, be filled into tube inner wall by in the ditch dug with a plow of eccentric wear and the etch pit, form metallurgical binding, fuse into one with excessive iron layer under the ceramic layer with tube inner wall;
3, screw thread processing: use numerically controlled lathe and accurate chasing tool, process pipe thread, coat thread compound, first-class box cupling.
The condition of oil removing scale removal: use pyrolysis oven, 400 ℃ of-500 ℃ of constant temperature 4 hours.
Advantage and good effect that the relative background technology of the present invention produces are as follows:
1. formulate the new abandoned tender standard of declaring on the basis of oilfield waste and old oil passageway criterion, reduced the quantity scrapped of oil pipe to a great extent, increase can be repaired oil pipe quantity.
2. be higher than more than 5 times of original new oil pipe service life the service life of making the old oil pipe in back again, greatly reduce the cost of investment in oil field.
The specific embodiment
Embodiment 1
1, preliminary treatment
Preliminary treatment is the important step of making again.It comprises unloads box cupling, Magnetic Flux Leakage Inspecting, chasing, oil removing scale removal, alignment, sandblast, length sorting seven parts.
1. unload box cupling
It was both rapid to use hydraulic screw-on machine to lay down old box cupling, did not hinder oil pipe again.
2. wall thickness detects
The waste and old oil passageway corrosion is different with the degree of wearing and tearing, must differentiate before making again, chooses the thin oil pipe of scrapping that can not bear down-hole pressure of wall, selects the waste and old oil passageway of wall thickness 3mm.The general pressure of oil well is little, is no more than 10MPa under the normal condition; Normal pressure water filling mains pressure is generally 18Mpa (the high pressure water injection pressure limit is at 31-35MPa, and the super-pressure water injection pressure is up to 50MPa).
Magnetic Flux Leakage Inspecting has characteristics such as inspection side ability is strong, automaticity height, is a kind of magnetic detection method that is most widely used at present, and is particularly very extensive with using in the detection of steel pipe in the oil field.Magnetic Flux Leakage Inspecting is selected the waste and old oil passageway that can make again, eliminates the waste and old oil passageway that thoroughly can not repair.
3. chasing
Use the die head machine to cut away old thread.
4. high temperature pyrolysis
Oil removing scale removal of waste and old oil passageway inwall and sandblast are pretreated keys, have only totally could form firm ceramic layer to inner wall cleaning.
Traditional heat alkali liquid cleans and can produce a large amount of sewage, and scale removal is unclean; Use high temperature pyrolysis stove oil removing scale removal only to produce small amount of exhaust gas, effect is fine.Since the complicated component of oil, flash-point-20-100 ℃; Self-ignition point 380-530 ℃, the temperature difference of the material pyrolysis of different component is set at 500 ℃ so furnace temperature is the highest.In the temperature-rise period, the oil residues in the oil pipe flows out outside the stove, avoids a large amount of burnings to produce CO 2500 ℃ of constant temperature 4 hours makes residual oil, dirty pyrolysis.
5. sandblast
The waste and old oil passageway of removing grease enters the sandblast operation, removes the loosening dirt and the oxide on surface.The sandblast of waste and old oil passageway inwall, adopt two-tube sand-blasting machine, by standard GB 8923-88 " steel surface rusting grade and derusting grade before the application ", cleannes Sa2.5---steel surface does not have attachments such as visible grease, dirt, oxide skin, iron rust, painting layer, and any residual vestige only is the slight color spot of point-like or strip.
2, lined ceramics
Lined ceramics is the key link of making again, and key equipment is the DDF-6 type centrifuge (ZL200710055681.1) of independent research.The characteristics of this centrifuge are: overlength, total length 9.4m; The rotating speed height can reach 2300rpm; Heat-resisting, can under the baking of 900 ℃ of ceramic-lined oil pipes, work continuously; The most important thing is the centrifuge good dynamic balance, balance level G6.3 is under the cooperation of special fixed cover; Centrifugal force is big, and the centrifugal force at φ 73*5.5 tube inner wall place can reach 180-200g; Intellectuality is furnished with electronic speed-determination, surveys the shake system.
During lined ceramics, in the centrifuge of rotation at a high speed, the iron liquid of fusion behind the self-propagating reaction is filled into tube inner wall by in the ditch dug with a plow of eccentric wear and the etch pit under action of centrifugal force, form metallurgical binding with tube inner wall, fuse into one with excessive iron layer under the ceramic layer; Ceramic layer closely combines with the iron layer under the effect of compression, and waste and old oil passageway has been formed firm protective layer.
At a high speed, the centrifuge of overlength is the nucleus equipment of this technology, under the centrifugal action up to 200g, realized the pore that separated, reduce ceramic layer of iron layer with ceramic layer, and the density and hardness of ceramic layer is increased, and improved the wearability of ceramic layer; Proper additive has increased Al 2O 3Melting time, reduced the micro-crack and the pore of ceramic layer, improved the corrosion resistance of ceramic layer.
3, screw thread processing
Screw thread processing is the requirement according to API Spec 5CT standard, uses numerically controlled lathe and accurate chasing tool, processes pipe thread.Tubing round thread processing must guarantee that parameters is qualified, could guarantee the connectivity and the sealing of screw thread, and oil pipe can normally be used.According to the requirement of API Spec 5CT standard, coat thread compound then, first-class box cupling.
4, check
Ceramic liner composite oil pipe to making again at first carries out the introscope quality examination of ceramic layer, rejects the underproof product of ceramic layer by the requirement of ceramic liner composite oil pipe company standard; According to the requirement of API Spec5CT standard, double thread detects, and carries out drift test and hydrostatic test one by one then, to guarantee to make normal, the safe handling of ceramic oil pipe again.
5, packing
According to the requirement of API Spec 5CT standard, the manufacturing again that is up to the standards pottery oil pipe surveyed grow, weighs, spray mark, sprays paint, with steel band oil pipe is broken into bag, put in storage and treat.
Embodiment 2
Select wall thickness 3.75mm waste and old oil passageway and repair, with embodiment 1.
Embodiment 3
Select wall thickness 4mm waste and old oil passageway and repair, with embodiment 1.

Claims (2)

1. the integral processing method that waste and old oil passageway is made again is characterized in that comprising the following steps:
(1) preliminary treatment: select the waste and old oil passageway of wall thickness more than 3mm, unload box cupling, Magnetic Flux Leakage Inspecting, chasing, oil removing scale removal, alignment, sandblast, length sorting;
(2) lined ceramics: in the centrifuge of rotation at a high speed, the iron liquid of fusion behind the self-propagating reaction is under action of centrifugal force, be filled into tube inner wall by in the ditch dug with a plow of eccentric wear and the etch pit, form metallurgical binding, fuse into one with excessive iron layer under the ceramic layer with tube inner wall;
(3) screw thread processing: use numerically controlled lathe and accurate chasing tool, process pipe thread, coat thread compound, first-class box cupling.
2. the integral processing method that waste and old oil passageway according to claim 1 is made again is characterized in that: the condition of oil removing scale removal: use pyrolysis oven, 400 ℃ of-500 ℃ of constant temperature 4 hours.
CN 201010297465 2010-08-19 2010-09-21 Integral processing method for refabrication of waste oil tube Pending CN101947714A (en)

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CN201010256771 2010-08-19
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581542A (en) * 2012-02-07 2012-07-18 梅河口市弘业无缝钢管有限公司 Waste and old oil well pipe performance recovery process
CN102699629A (en) * 2012-05-29 2012-10-03 吕少华 Production method and remanufacturing method for hollow sucker rods
CN102699617A (en) * 2012-05-29 2012-10-03 吕少华 Remanufacturing method for waste oil tubes
CN103008979A (en) * 2011-09-23 2013-04-03 吕少华 Production and refabrication technology for upsetting-type hollow sucker rod
CN103453234A (en) * 2013-07-22 2013-12-18 南通大学 Structure for increasing strength of centrifugal self-propagating ceramic lined composite steel pipe and production method of structure
CN103447747A (en) * 2013-09-06 2013-12-18 潍柴动力(潍坊)再制造有限公司 High-pressure oil pipe reproducing method
CN103831596A (en) * 2014-03-28 2014-06-04 淄博弘扬石油设备集团有限公司 Method for repairing old pipes for water injection well
CN104565578A (en) * 2013-07-22 2015-04-29 南通大学 Structure for enhancing strength of centrifugal self-propagating ceramic-lined composite steel pipe
CN104786001A (en) * 2015-04-13 2015-07-22 梅河口市弘业无缝钢管有限公司 Waste thermal insulation oil pipe performance recovery process
CN105333238A (en) * 2015-08-26 2016-02-17 杨永利 Metal ceramic composite oil tube formed by remanufacturing waste oil tube and waste oil tube remanufacturing technology
CN105351635A (en) * 2015-08-26 2016-02-24 杨永利 Metal-ceramic composite pipe and manufacturing process thereof
US20160151819A1 (en) * 2012-08-24 2016-06-02 Michael Eric Johnson Sucker rod
CN106651623A (en) * 2017-02-17 2017-05-10 山东德华机床数控设备股份有限公司 Highly-intelligent and highly-automatic oil casing pipe production line
CN106734330A (en) * 2016-12-12 2017-05-31 濮阳市顺康石油工程技术有限公司 Waste and old oil passageway hot rolling finish forge new technology
CN107962258A (en) * 2017-12-11 2018-04-27 中国石油集团渤海钻探工程有限公司 The method that drilling tool thread reparation is carried out using numerically controlled lathe
CN109128699A (en) * 2018-08-27 2019-01-04 中国石油集团渤海石油装备制造有限公司 Drilling rod remanufactures the method and tubing and casing of tubing and casing
US10195699B2 (en) 2012-08-24 2019-02-05 Trc Services, Inc. Sucker rod

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Cited By (26)

* Cited by examiner, † Cited by third party
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
CN102581542A (en) * 2012-02-07 2012-07-18 梅河口市弘业无缝钢管有限公司 Waste and old oil well pipe performance recovery process
CN102699629A (en) * 2012-05-29 2012-10-03 吕少华 Production method and remanufacturing method for hollow sucker rods
CN102699617A (en) * 2012-05-29 2012-10-03 吕少华 Remanufacturing method for waste oil tubes
US10195699B2 (en) 2012-08-24 2019-02-05 Trc Services, Inc. Sucker rod
US20160151819A1 (en) * 2012-08-24 2016-06-02 Michael Eric Johnson Sucker rod
CN103453234B (en) * 2013-07-22 2015-04-01 南通大学 Structure for increasing strength of centrifugal self-propagating ceramic lined composite steel pipe and production method of structure
CN104565578A (en) * 2013-07-22 2015-04-29 南通大学 Structure for enhancing strength of centrifugal self-propagating ceramic-lined composite steel pipe
CN103453234A (en) * 2013-07-22 2013-12-18 南通大学 Structure for increasing strength of centrifugal self-propagating ceramic lined composite steel pipe and production method of structure
CN104565578B (en) * 2013-07-22 2016-09-21 南通大学 Strengthen the structure of centrifugal self-propagating ceramic-lined composite steel tube intensity
CN103447747A (en) * 2013-09-06 2013-12-18 潍柴动力(潍坊)再制造有限公司 High-pressure oil pipe reproducing method
CN103447747B (en) * 2013-09-06 2016-01-20 潍柴动力(潍坊)再制造有限公司 The reproducing method of high-pressure oil pipe
CN103831596A (en) * 2014-03-28 2014-06-04 淄博弘扬石油设备集团有限公司 Method for repairing old pipes for water injection well
CN103831596B (en) * 2014-03-28 2016-08-17 淄博弘扬石油设备集团有限公司 Water injection well is with old pipe restorative procedure
CN104786001B (en) * 2015-04-13 2017-06-23 梅河口市弘业无缝钢管有限公司 A kind of waste and old insulated tubing performance recovery technique
CN104786001A (en) * 2015-04-13 2015-07-22 梅河口市弘业无缝钢管有限公司 Waste thermal insulation oil pipe performance recovery process
CN105351635A (en) * 2015-08-26 2016-02-24 杨永利 Metal-ceramic composite pipe and manufacturing process thereof
CN105333238A (en) * 2015-08-26 2016-02-17 杨永利 Metal ceramic composite oil tube formed by remanufacturing waste oil tube and waste oil tube remanufacturing technology
CN105351635B (en) * 2015-08-26 2023-09-29 杨永利 Metal ceramic composite pipe and manufacturing process thereof
CN105333238B (en) * 2015-08-26 2024-06-04 杨永利 Metal ceramic composite oil pipe manufactured by remanufacturing waste oil pipe and remanufacturing process thereof
CN106734330A (en) * 2016-12-12 2017-05-31 濮阳市顺康石油工程技术有限公司 Waste and old oil passageway hot rolling finish forge new technology
CN106734330B (en) * 2016-12-12 2019-01-18 濮阳市顺康石油工程技术有限公司 Waste and old oil passageway hot rolling finish forge new process
CN106651623A (en) * 2017-02-17 2017-05-10 山东德华机床数控设备股份有限公司 Highly-intelligent and highly-automatic oil casing pipe production line
CN107962258A (en) * 2017-12-11 2018-04-27 中国石油集团渤海钻探工程有限公司 The method that drilling tool thread reparation is carried out using numerically controlled lathe
CN109128699A (en) * 2018-08-27 2019-01-04 中国石油集团渤海石油装备制造有限公司 Drilling rod remanufactures the method and tubing and casing of tubing and casing
CN109128699B (en) * 2018-08-27 2020-07-28 中国石油集团渤海石油装备制造有限公司 Method for remanufacturing oil casing from drill rod and oil casing

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Application publication date: 20110119