CN101871080A - Sleeve for thick oil thermal production well and production method - Google Patents
Sleeve for thick oil thermal production well and production method Download PDFInfo
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Abstract
The invention relates to production of a seamless steel pipe in a metallurgical industry, in particular to a sleeve for a thick oil thermal production well as well as a manufacture method and a production method. The sleeve for the oil thermal production well comprises the following components in percentage by mass: 0.25-0.29 percent of C, 0.17-0.32 percent of Si, 0.90-1.00 percent of Mn, not more than 0.015 percent of P, not more than 0.003 percent of S, not more than 0.10 percent of Cu, 0.35-0.40 percent of Mo, 0.95-1.05 percent of Cr, not more than 0.05 percent of V, not more than 0.20 percent of Ni, 0.015-0.040 percent of Al, 0.010-0.025 percent of Ti, 0.0005-0.0012 percent of B and the balance of Fe and unavoidable impurities. The production method comprises steel billet smelting and pipe manufacture; the steel billet smelting comprises electric furnace smelting, refining outside a furnace, vacuum degasification and curved continuous casting; and a pipe manufacture process comprises rolling, heat treatment and thread processing of a steel pipe. A rolled pipe adopts a tapered roll for perforating and multi-stand longitudinal rolling way, the deformation amount is reasonably distributed in all procedures, and the defects of cracks, and the like are effectively prevented.
Description
Technical field
The present invention relates to the production of metallurgy industry weldless steel tube, particularly relate to a kind of thick oil thermal extraction with sleeve pipe and production method.
Background technology
World's viscous crude resource is quite abundant, has verified the reserves that have more than 3,000 hundred million tons, and can only be left 1,700 hundred million tons for the thin oil resource of exploitation, and viscous crude will be the important energy source of 21 century.There is abundant viscous crude resource the triumph of China, the Liaohe River, Xinjiang and Zhongyuan Oil Field, because viscosity of thickened oil is big, so the oil recovery difficulty is very big.Heavy crude reservoir generally adopts heating exploitation, and China is mainly the steam stimulation method, utilizes the heat of injecting steam that the viscous crude temperature is raise, and is easy to flow, and is convenient to exploitation.In the recovery process, sleeve pipe is fixed on and is in restrained condition in the pit shaft, can not free expansion and contraction, and (350 ℃, 20MPa), sleeve pipe is because expanded by heating bears very big stress with being tied injecting the high temperature and high pressure steam stage.Stop annotating when recovering the oil, owing to the lax very big tensile stress of bearing is shunk in cooling, sleeve pipe bears high drawing-stress repeatedly and very easily damages, principal mode has distortion, Wrong position, Luo Pattern Jie Head leakage, Off button etc., and the cover that causes in the viscous oil recovery process decreases ratio will be far above the cover loss rate in the thin oil recovery process.The survey showed that according to each big viscous crude field cover loss rate, and the cover loss rate average out to of thick oil thermal extraction is more than 30%, and local block reaches 70%, first of the row sleeve in oil field spoilage.Therefore, exploitation is suitable for the specialized barrel series that heavy crude heat extraction is used, thereby reduces the high problem of cover loss rate in the present heavy crude heat extraction process, has very great economic implications.
Summary of the invention
The objective of the invention is to overcome the problem that prior art exists, hot properties (as thermal expansivity, hot strength, creep, creep stability, thermal strain fatigue etc.) and anti-squeezing by specialized barrel material that heavy crude heat extraction is used are ruined performance, and the research of the sealing of screw thread and switching performance, provide a kind of and be suitable for thick oil thermal extraction that heavy crude heat extraction uses with sleeve pipe and production method.
Technical scheme of the present invention is: a kind of thick oil thermal extraction sleeve pipe, composition is in quality %, specifically have: C:0.25～0.29, Si:0.17～0.32, Mn0.90～1.00, P :≤0.015, S :≤0.003, Cu :≤0.10, Mo:0.35～0.40, Cr:0.95～1.05, V :≤0.05, Ni :≤0.20, Al:0.015～0.040, Ti:0.010～0.025, B:0.0005～0.0012, rest part is Fe and unavoidable impurities.
Unavoidable impurities comprises: Sb, Bi, Pb, As, Sn, Pb, Sb, Bi, O, H, wherein: Sb≤0.008%, Bi≤0.001%, Pb≤0.001%, As+Sn+Pb+Sb+Bi≤0.035%, O≤30ppm, H≤2ppm.
In mentioned component, C content is controlled at 0.25～0.29, and purpose is a proof strength; Mn content is controlled at 0.90～1.00, plays the solution strengthening effect, can improve the intensity of steel; Add The addition of C r, Mo, play solution strengthening, precipitation strength effect, guarantee high tempering intensity, can provide hardening capacity simultaneously; Al, Ti add in smelting process and make reductor, but and crystal grain thinning; B can provide hardening capacity.
The invention provides also provides a kind of thick oil thermal extraction telescopic production method, and it comprises steel billet smelting technology flow process and trasistor manufacture process, and its concrete production method is as follows:
A, steel billet smelting technology flow process:
Electrosmelting+external refining+vacuum outgas+arc continuous casting.
Steel billet is smelted batching: 50% high duty pig iron+45% high-quality steel scrap+5% sponge iron.Add an amount of aluminium wire, silico-calcium silk and carbon dust removing impurity and inclusion modification in the molten steel in smelting process, and carry out vacuum outgas, blowing argon when cast improves the purity of steel.
The addition of aluminium wire is that the addition of 2.5～3.0kg/t steel, silico-calcium silk is that the addition of 1.0～1.3kg/t steel, carbon dust is 0.3～0.4kg/t steel.
B, trasistor manufacture process:
The steel pipe rolling technical process is: pipe sawing → material loading → ring furnace heating → cone-type piercer → nitrogen flushing spray borax → retained mandrel tandem rolling → online takes off pipe → reheating furnace heating → high-pressure water descaling → decide tube reducing → cold bed cooling → crop end, the segmentation saw → aligning → suction ash → flaw detection → manual checking → mark → warehouse-in of weighing → spray.
Thermal treatment and screw thread work flow are: and pipe material storehouse → quenchings heating → high-pressure water descaling → water quenching → tempering heating → sizing → cooling → aligning → cooling → removings iron scale → pipe end inner surface inspection → pipe end flaw detection → body detects a flaw → manually outer surface inspection → water test → collection warehouse-in → pipe thread processes → and stubborn box cupling → latus rectum → another pipe thread processes → and upward guard ring → survey length is weighed → spray printing japanning → check → warehouse-in.
Steel billet divides preheating, heating, equal thermal process in the ring furnace heating, and be controlled at 150～180min total heat-up time, and the time of each section of properly distributed is to prevent that heating is uneven and thermal defect to occur adding.Wherein: with furnace temperature preheating 25～30min, 850 ± 50 ℃, heating 110～130min, 1260 ± 20 ℃, soaking 15～20min.
Tube rolling adopts tapered roller perforation, multimachine frame axial rolling mode, and each operation properly distributed deflection has been avoided defectives such as crackle effectively.
Fished pipe carries out modified thermal treatment.Quenching temperature: 920 ± 10 ℃, soaking time 40 ± 5min, shrend; Tempering temperature: 600 ± 5 ℃, soaking time 64 ± 5min.
Thick oil thermal extraction provided by the invention has following characteristics with sleeve pipe:
1, the heat-resisting steel grade of low-carbon (LC) Cr-Mo series during the present invention selects to adopt, by adding surface active elements such as B, Ti, Al, strengthen crystal boundary, improve the hot strength and the Young's modulus of material, intensity is not raise with temperature descend too early, guarantee that the fall that sleeve pipe is adopted yield strength in the process at notes can satisfy the thermal recovery requirement.
2, the thick oil thermal extraction that adopts the present invention to produce is good with the sleeve pipe combination of strength and toughness, the hot strength good stability, and its every index all is much higher than required value.
Below in conjunction with embodiment the present invention is further described.
Embodiment
Embodiment: a kind of thick oil thermal extraction sleeve pipe, composition is in quality %, specifically have: C:0.25～0.29, Si:0.17～0.32, Mn0.90～1.00, P :≤0.015, S :≤0.003, Cu :≤0.10, Mo:0.35～0.40, Cr:0.95～1.05, V :≤0.05, Ni :≤0.20, Al:0.015～0.040, Ti:0.010～0.025, B:0.0005～0.0012, rest part is Fe and unavoidable impurities.
Unavoidable impurities comprises: Sb, Bi, Pb, As, Sn, Pb, Sb, Bi, O, H, wherein: Sb≤0.008%, Bi≤0.001%, Pb≤0.001%, As+Sn+Pb+Sb+Bi≤0.035%, O≤30ppm, H≤2ppm.
In mentioned component, C content is controlled at 0.25～0.29, and purpose is a proof strength; Mn content is controlled at 0.90～1.00, plays the solution strengthening effect, can improve the intensity of steel; Add The addition of C r, Mo, play solution strengthening, precipitation strength effect, guarantee high tempering intensity, can provide hardening capacity simultaneously; Al, Ti add in smelting process and make reductor, but and crystal grain thinning; B can provide hardening capacity.
The invention provides also provides a kind of thick oil thermal extraction telescopic production method, and it comprises steel billet smelting technology flow process and trasistor manufacture process, and its concrete production method is as follows:
A, steel billet smelting technology flow process:
Electrosmelting+external refining+vacuum outgas+arc continuous casting.
Steel billet is smelted batching: 50% high duty pig iron+45% high-quality steel scrap+5% sponge iron.Add an amount of aluminium wire, silico-calcium silk and carbon dust removing impurity and inclusion modification in the molten steel in smelting process, and carry out vacuum outgas, blowing argon when cast improves the purity of steel.
The addition of aluminium wire is that the addition of 2.5～3.0kg/t steel, silico-calcium silk is that the addition of 1.0～1.3kg/t steel, carbon dust is 0.3～0.4kg/t steel.
B, trasistor manufacture process:
The steel pipe rolling technical process is: pipe sawing → material loading → ring furnace heating → cone-type piercer → nitrogen flushing spray borax → retained mandrel tandem rolling → online takes off pipe → reheating furnace heating → high-pressure water descaling → decide tube reducing → cold bed cooling → crop end, the segmentation saw → aligning → suction ash → flaw detection → manual checking → mark → warehouse-in of weighing → spray.
Thermal treatment and screw thread work flow are: and pipe material storehouse → quenchings heating → high-pressure water descaling → water quenching → tempering heating → sizing → cooling → aligning → cooling → removings iron scale → pipe end inner surface inspection → pipe end flaw detection → body detects a flaw → manually outer surface inspection → water test → collection warehouse-in → pipe thread processes → and stubborn box cupling → latus rectum → another pipe thread processes → and upward guard ring → survey length is weighed → spray printing japanning → check → warehouse-in.
Steel billet divides preheating, heating, equal thermal process in the ring furnace heating, and be controlled at 150～180min total heat-up time, and the time of each section of properly distributed is to prevent that heating is uneven and thermal defect to occur adding.Wherein: with furnace temperature preheating 25～30min, 850 ± 50 ℃, heating 110～130min, 1260 ± 20 ℃, soaking 15～20min.
Tube rolling adopts tapered roller perforation, multimachine frame axial rolling mode, and each operation properly distributed deflection has been avoided defectives such as crackle effectively.
Fished pipe carries out modified thermal treatment.Technology: quenching temperature: 920 ± 10 ℃, soaking time 40 ± 5min, shrend; Tempering temperature: 600 ± 5 ℃, soaking time 64 ± 5min.
Hualing Steel Tube Co., Ltd., Hengyang City produces the thick oil thermal extraction sleeve pipe according to method provided by the invention, and specification is: Φ 177.8 * 9.19mm.
Thick oil thermal extraction sees Table 1 with the casing size accuracy requirement.
Table 1 thick oil thermal extraction telescopic dimension precision requirement
| Test item | The external diameter precision | Wall thickness accuracy |
| Requirement | ??-0.5％D～+1％D | ??-12.5％ |
Thick oil thermal extraction sees Table 2 with the sleeve pipe mechanical property requirements.
Table 2 thick oil thermal extraction telescopic mechanical property requirements
The thick oil thermal extraction of producing is analyzed with the sleeve pipe random sampling, and the result is as follows: its concrete chemical ingredients sees Table 3, and rest part is Fe and unavoidable impurities.
Table 3 chemical ingredients
| Heat (batch) number | ??C | ??Si | ??Mn | ??P | ??S | ??Cr | ??Mo | ??Ti | ??B | ??Al | ??Sn | ??As |
| ??0931244 | ??0.28 | ??0.29 | ??0.96 | ??0.009 | ??0.002 | ??1.0 | ??0.36 | ??0.018 | ??0.0010 | ??0.025 | ??0.008 | ??0.015 |
The thick oil thermal extraction of producing sees Table 4 with casing size and mechanical property.
Table 4 size and mechanical property
Synopsis 1, table 2 and table 4, thick oil thermal extraction provided by the invention is good with the sleeve pipe combination of strength and toughness, the hot strength good stability, its every index all is much higher than required value.
Claims (7)
1. thick oil thermal extraction sleeve pipe, it is characterized in that: composition is in quality %, specifically have: C:0.25～0.29, Si:0.17～0.32, Mn0.90～1.00, P :≤0.015, S :≤0.003, Cu :≤0.10, Mo:0.35～0.40, Cr:0.95～1.05, V :≤0.05, Ni :≤0.20, Al:0.015～0.040, Ti:0.010～0.025, B:0.0005～0.0012, rest part is Fe and unavoidable impurities.
2. a kind of thick oil thermal extraction sleeve pipe according to claim 1, it is characterized in that: unavoidable impurities comprises: Sb, Bi, Pb, As, Sn, Pb, Sb, Bi, O, H, wherein: Sb≤0.008%, Bi≤0.001%, Pb≤0.001%, As+Sn+Pb+Sb+Bi≤0.035%, O≤30ppm, H≤2ppm.
3. thick oil thermal extraction telescopic production method, it is characterized in that: it comprises steel billet smelting technology flow process and trasistor manufacture process, its concrete production method is as follows:
A, steel billet smelting technology flow process: electrosmelting+external refining+vacuum outgas+arc continuous casting;
Steel billet is smelted batching: 50% high duty pig iron+45% high-quality steel scrap+5% sponge iron, add an amount of aluminium wire, silico-calcium silk and carbon dust to remove impurity and inclusion modification in the molten steel in smelting process, and carry out vacuum outgas, blowing argon when cast, the purity of raising steel;
B, trasistor manufacture process:
The steel pipe rolling technical process is: pipe sawing → material loading → ring furnace heating → cone-type piercer → nitrogen flushing spray borax → retained mandrel tandem rolling → online takes off pipe → reheating furnace heating → high-pressure water descaling → decide tube reducing → cold bed cooling → crop end, the segmentation saw → aligning → suction ash → flaw detection → manual checking → mark → warehouse-in of weighing → spray;
Thermal treatment and screw thread work flow are: and pipe material storehouse → quenchings heating → high-pressure water descaling → water quenching → tempering heating → sizing → cooling → aligning → cooling → removings iron scale → pipe end inner surface inspection → pipe end flaw detection → body detects a flaw → manually outer surface inspection → water test → collection warehouse-in → pipe thread processes → and stubborn box cupling → latus rectum → another pipe thread processes → and upward guard ring → survey length is weighed → spray printing japanning → check → warehouse-in;
Tube rolling adopts tapered roller perforation, multimachine frame axial rolling mode, each operation properly distributed deflection.
4. a kind of thick oil thermal extraction telescopic production method according to claim 3, it is characterized in that: when steel billet was smelted batching, the addition of aluminium wire was that the addition of 2.5～3.0kg/t steel, silico-calcium silk is that the addition of 1.0～1.3kg/t steel, carbon dust is 0.3～0.4kg/t steel.
5. according to claim 3 or 4 described a kind of thick oil thermal extraction telescopic production methods, it is characterized in that: steel billet divides preheating, heating, equal thermal process in the ring furnace heating, be controlled at 150～180min total heat-up time, the time of each section of properly distributed, to prevent that heating is uneven and thermal defect to occur adding, wherein: with furnace temperature preheating 25～30min, 850 ± 50 ℃, heating 110～130min, 1260 ± 20 ℃, soaking 15～20min.
6. according to claim 3 or 4 described a kind of thick oil thermal extraction telescopic production methods, it is characterized in that: fished pipe carries out modified thermal treatment, quenching temperature: 920 ± 10 ℃, and soaking time 40 ± 5min, shrend; Tempering temperature: 600 ± 5 ℃, soaking time 64 ± 5min.
7. a kind of thick oil thermal extraction telescopic production method according to claim 5, it is characterized in that: fished pipe carries out modified thermal treatment, quenching temperature: 920 ± 10 ℃, soaking time 40 ± 5min, shrend; Tempering temperature: 600 ± 5 ℃, soaking time 64 ± 5min.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102199995A (en) * | 2011-04-13 | 2011-09-28 | 安徽天大石油管材股份有限公司 | Process for producing high-precision special threaded sleeve pipe coupling |
| CN102690992A (en) * | 2012-05-07 | 2012-09-26 | 攀钢集团成都钢钒有限公司 | Method for producing casing pipe for thickened oil thermal production well |
| CN102732798A (en) * | 2012-03-31 | 2012-10-17 | 攀钢集团成都钢钒有限公司 | Boron-containing high-strength high-toughness thick-wall seamless line pipe steel and manufacturing method thereof |
| CN103194693A (en) * | 2013-04-26 | 2013-07-10 | 宝鸡石油钢管有限责任公司 | High-strength and high-toughness oil casing and manufacturing method thereof |
| CN103320711A (en) * | 2013-06-26 | 2013-09-25 | 衡阳华菱钢管有限公司 | Seamless steel tube and manufacturing method thereof |
| CN103556084A (en) * | 2013-11-13 | 2014-02-05 | 江苏华菱锡钢特钢有限公司 | Oil sleeve steel ball and manufacturing process thereof |
| CN103678927A (en) * | 2013-12-20 | 2014-03-26 | 中国石油天然气集团公司 | Thermal production well casing tubular column total strain calculating method |
| CN103774063A (en) * | 2014-01-15 | 2014-05-07 | 扬州龙川钢管有限公司 | Oil casing with large caliber and TMCP (Thermal Mechanical Control Processing) production method thereof |
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| CN104388637A (en) * | 2014-10-17 | 2015-03-04 | 无锡英普林纳米科技有限公司 | Method for induction heating on threaded surface of oil casing collar |
| CN104831175A (en) * | 2014-11-25 | 2015-08-12 | 宝鸡石油钢管有限责任公司 | J55-steel-grade SEW expandable casing tube and manufacturing method thereof |
| CN105834674A (en) * | 2015-01-15 | 2016-08-10 | 宝山钢铁股份有限公司 | Manufacturing method for special diameter sleeve |
| CN107587053A (en) * | 2017-08-08 | 2018-01-16 | 胜利油田华滨实业有限公司石油机械滨州分公司 | A kind of high-strength oil well sleeve pipe and preparation method thereof |
| CN107815589A (en) * | 2017-10-23 | 2018-03-20 | 山东钢铁股份有限公司 | A kind of Cr microalloyings oil casing pipe steel and its manufacture method |
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| CN102732798B (en) * | 2012-03-31 | 2014-04-02 | 攀钢集团成都钢钒有限公司 | Boron-containing high-strength high-toughness thick-wall seamless line pipe steel and manufacturing method thereof |
| CN102732798A (en) * | 2012-03-31 | 2012-10-17 | 攀钢集团成都钢钒有限公司 | Boron-containing high-strength high-toughness thick-wall seamless line pipe steel and manufacturing method thereof |
| CN102690992A (en) * | 2012-05-07 | 2012-09-26 | 攀钢集团成都钢钒有限公司 | Method for producing casing pipe for thickened oil thermal production well |
| CN102690992B (en) * | 2012-05-07 | 2014-03-19 | 攀钢集团成都钢钒有限公司 | Method for producing casing pipe for thickened oil thermal production well |
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| CN103320711A (en) * | 2013-06-26 | 2013-09-25 | 衡阳华菱钢管有限公司 | Seamless steel tube and manufacturing method thereof |
| CN103556084A (en) * | 2013-11-13 | 2014-02-05 | 江苏华菱锡钢特钢有限公司 | Oil sleeve steel ball and manufacturing process thereof |
| CN103678927A (en) * | 2013-12-20 | 2014-03-26 | 中国石油天然气集团公司 | Thermal production well casing tubular column total strain calculating method |
| CN103678927B (en) * | 2013-12-20 | 2016-06-08 | 中国石油天然气集团公司 | The method determining Casing In Thermal Recovery Wells overall strain |
| CN103774063A (en) * | 2014-01-15 | 2014-05-07 | 扬州龙川钢管有限公司 | Oil casing with large caliber and TMCP (Thermal Mechanical Control Processing) production method thereof |
| CN104057253A (en) * | 2014-06-16 | 2014-09-24 | 攀钢集团成都钢钒有限公司 | High-strength oil-string casing for shale gas and manufacturing method thereof |
| CN104388637A (en) * | 2014-10-17 | 2015-03-04 | 无锡英普林纳米科技有限公司 | Method for induction heating on threaded surface of oil casing collar |
| CN104831175A (en) * | 2014-11-25 | 2015-08-12 | 宝鸡石油钢管有限责任公司 | J55-steel-grade SEW expandable casing tube and manufacturing method thereof |
| CN105834674A (en) * | 2015-01-15 | 2016-08-10 | 宝山钢铁股份有限公司 | Manufacturing method for special diameter sleeve |
| CN107587053A (en) * | 2017-08-08 | 2018-01-16 | 胜利油田华滨实业有限公司石油机械滨州分公司 | A kind of high-strength oil well sleeve pipe and preparation method thereof |
| CN107815589A (en) * | 2017-10-23 | 2018-03-20 | 山东钢铁股份有限公司 | A kind of Cr microalloyings oil casing pipe steel and its manufacture method |
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Application publication date: 20101027 |