CN103320697B - A kind of drill pipe body and manufacture method thereof being applied to ultra deep well operating mode - Google Patents
A kind of drill pipe body and manufacture method thereof being applied to ultra deep well operating mode Download PDFInfo
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- CN103320697B CN103320697B CN201310238666.6A CN201310238666A CN103320697B CN 103320697 B CN103320697 B CN 103320697B CN 201310238666 A CN201310238666 A CN 201310238666A CN 103320697 B CN103320697 B CN 103320697B
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Abstract
The invention discloses a kind of drill pipe body and the manufacture method thereof that are applied to ultra deep well operating mode, belong to the heat treatment mode field of alloy and alloy.The invention provides the steel grades of drill pipe body, first the weldless steel tube containing this steel grades is made drill pipe body, after both ends thicken, by the thermal treatment process of primary quenching and double tempering, adjust and control the manufactures such as all temps parameter this kind of drill pipe body.The present invention, by conservative control steel grade constituent content, decreases the use of the precious metals such as steel grade Mo, Ni, V, reduces the cost of manufacture of drill pipe body; Simultaneously by the various parameters, the particularly utilization of double tempering technique of adjustment thermal treatment process, effectively improve the intensity of drill pipe body, also obtain higher impelling strength simultaneously; When making drill pipe body, two ends thicken the application of mode and ensure that organizing of upset end and body is basically identical, for ultra deep well operation and Pipeline Crossing Program operation provide good solution.
Description
Technical field
The invention belongs to the heat treatment mode field of alloy and alloy.
Background technology
According to API's " drilling rod specification " (API5DP-2009 the 1st edition), drilling rod is divided into E, X, G, S tetra-kinds of grade of steels.The standard specifies drill pipe body room temperature longitudinally full-scale impelling strength >=54J.The standard specifies drilling rod is drill pipe body with butt joint, and drill pipe body is the weldless steel tube that there is thick section at body two ends.The present invention relates to drill pipe body and manufacture method thereof, belong to oil drill rocker field.
Along with Xinjiang Oilfield, the continually developing of region, deep-sea, the ratio of deep-well, ultra deep well constantly increases, and these are all had higher requirement to the performance of drilling rod.Along with the exploitation of domestic oil and gas pipelines, crossing project gets more and more, and day by day increases superstrength drilling rod demand.Total exactly these two market requirements to drilling rod improve intensity, ensure that impelling strength does not reduce.
Summary of the invention
The invention provides a kind of drill pipe body and the manufacture method thereof that are applied to ultra deep well operating mode, the object of the invention is by conservative control steel grade constituent content and Fabrication parameter, compare and existing steel grade, decrease the use of the precious metals such as Mo, Ni, V (according to percentage composition, reduce 20%-50%), have adjusted Cr constituent content, thus improve intensity and the impelling strength of drill pipe body.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of drill pipe body being applied to ultra deep well operating mode, and the steel grades of this drill pipe body and content are: C:0.22-0.28, Si:0.20-0.35, Mn:0.45-0.65, Cr:0.95-1.15, Mo:0.75-0.85, Ni :≤0.08, V:0.05-0.10, Cu:0-0.05, S :≤0.005, P :≤0.015, surplus is Fe, and unit is mass percent.
The yield strength of described drill pipe body reaches 1200-1300MPa, and tensile strength is greater than 1250MPa, and elongation after fracture is greater than 18%, and the v-notch ballistic work at 20 DEG C is greater than 80J, and grain fineness number is less than or equal to 9 grades.
Be applied to a manufacture method for the drill pipe body of ultra deep well operating mode, comprise the steps:
The first step, makes drill pipe body
Be heated to 1200-1300 DEG C by within the both ends 500mm of the weldless steel tube prepared according to the steel grades in claim 1, remove the oxide skin on surface, then adopt three molding modes that two end upsettings are formed drill pipe body;
Second step, quenching
The drill pipe body that the above-mentioned the first step obtains is warming up to 890 DEG C-930 DEG C, and be incubated and come out of the stove after 100-120 minute, enter the hardening liquid of 10 DEG C-30 DEG C in 15 seconds, the cool time is no less than 30 seconds;
3rd step, tempering
A) tempering: the drill pipe body that above-mentioned second step obtains is warming up to 550 DEG C-580 DEG C, is incubated and comes out of the stove after 90-120 minute, naturally cool to room temperature;
B) double tempering: continued to be warming up to 570 DEG C-600 DEG C by the drill pipe body that a tempering obtains, is incubated and comes out of the stove after 120-150 minute, naturally cool to room temperature, obtain final drill pipe body.
High-pressure water descaling technology is adopted to remove the oxide skin on weldless steel tube surface in the above-mentioned the first step.
Mechanical type upsetter is adopted to be thickeied at weldless steel tube two ends in the above-mentioned the first step.
In the described the first step, the concrete technology step of three molding modes is: first carry out once shaped, and it is shaping then to carry out continuous print two or three times, completes thickening in the time being at every turn molded over 1-2s.
The technical progress adopting technique scheme to obtain is: the present invention, by conservative control steel grade constituent content, decreases the use of the precious metals such as steel grade Mo, Ni, V, reduces the steel-making cost of drill pipe body; Simultaneously by adjusting adding of the various parameters, particularly double tempering technique of thermal treatment process, double tempering technique matches, and effectively improves the intensity of drill pipe body, also obtain higher impelling strength simultaneously; When making drill pipe body, two ends thicken the application of mode and ensure that organizing of upset end and body is basically identical, for ultra deep well operation and Pipeline Crossing Program operation provide good solution.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further detailed.
According to the chemical composition proportioning of the present invention to drill pipe body, steel grades and content are: C:0.22-0.28, Si:0.20-0.35, Mn:0.45-0.65, Cr:0.95-1.15, Mo:0.75-0.85, Ni :≤0.08, V:0.05-0.10, Cu:0-0.05, S :≤0.005, P :≤0.015, surplus is Fe, and unit is mass percent.
By the steel grade of mentioned component after smelting, rolling, make Φ 168.3x10.92mm, the weldless steel tube of long 9200-9500mm, then manufacture in accordance with the following steps:
The first step, makes drill pipe body
Part within the both ends 500mm of weldless steel tube is adopted 2 intermediate frequency furnaces, the type of heating of 1 pipe end soaking pit is heated to 1200-1300 DEG C, heat the oxide skin that rear employing high-pressure water descaling technology removes weldless steel tube surface, then adopt three molding modes that end upsetting is made drill pipe body by mechanical type upsetter.During concrete operations, two end portions drives row into, carries out the other end again after one end completes.
Second step, integral quenching
The drill pipe body above-mentioned the first step obtained is warming up to 890 DEG C-930 DEG C in stepped start-stop system quenching furnance, be incubated and come out of the stove after 100-120 minute, 15 seconds sprayed outer pouring on quenching press and quench in inherence, the quench fluid temperature adopted is between 10 DEG C-30 DEG C, cool time is no less than 30 seconds, and after quenching, body temperature is not higher than 200 DEG C.
3rd step, tempering
A) tempering: the drill pipe body that above-mentioned second step obtains is transported to and is warming up in the stepped start-stop system tempering stove of 550 DEG C-580 DEG C, insulation 90-120 minute, then drill pipe body is come out of the stove, naturally cool to room temperature;
B) double tempering: deliver in tempering stove by the drill pipe body that a tempering obtains, furnace temperature is 570 DEG C-600 DEG C, is incubated and comes out of the stove after 120-150 minute, naturally cool to room temperature, obtain final drill pipe body.
When weldless steel tube two ends being thickeied in the above-mentioned the first step, molding mode is for adopting mechanical type upsetter, these three molding mode processing steps: first carry out once shaped, it is shaping then to carry out continuous print two or three times, completes thickening in the time being at every turn molded over 1-2s.Between second time that what continuous print two or three times was shaping be meant to shaping and third time is shaping, interval is very short, can think to compare continuous print technique.Adopt this thickening mode, when can ensure quenching, pipe end and body obtain consistent quenching structure when identical spray flux.
After above-mentioned 3rd step tempering, described drill pipe body be organized as tempered sorbite and ferrite composition, and tempered sorbite content is more than 95%.
The yield strength of the drill pipe body adopting said components and explained hereafter to go out reaches 1200-1300MPa, and tensile strength is greater than 1250MPa, and elongation after fracture is greater than 18%, and v-notch ballistic work (20 DEG C, 10x10mm) is greater than 80J, and grain fineness number is less than or equal to 9 grades.
The mechanical property being processed into high strength (yield strength 1200-1300MPa) with regard to other material and drill pipe body of the present invention below contrasts, and its chemical composition proportioning is as shown in table 1, and mechanical property is as shown in table 2.
Table 1
Table 2
As can be seen from the data in table 1, embodiment 1 is compared with comparative example 1, and in chemical composition, 4 kinds of element proportionings such as Cr, Mo, Ni, V have essential distinction, but do not have overlapping region in scope.Embodiment 1 adjusts the hardening capacity of body by one rise and one drop of Cr, Mo element; Ni element can crystal grain thinning, but the effect played when overtesting finds that Ni is less than 0.08% is in the present invention more obvious; The present invention also significantly reduces the content (dropping to 0.06 from 0.19) of V element, and adjusts temper resistance, reduces tempering temperature.By learning through inquiring the price to seamless steel tubing mill, relative with comparative example 1, the price of embodiment 1 reduces about 2%-5%.By mechanical property in table 2 relatively in can draw, embodiment 1 is compared with comparative example 1, and on yield strength, tensile strength and elongation, change is than obviously, but average impact merit has but increased substantially, and raising degree is 13%.Therefore, embodiment 1, compared with comparative example 1, also substantially increases average impact merit while cost savings, and these are all the beneficial effects brought by steel grade component and production technique.
Compared with embodiment 2 from embodiment in table 11, embodiment 2 on Cr, Mo, Ni, V etc. 4 kinds with embodiment 1 by difference slightly, but embodiment 1 is just less better than embodiment 2 in yield strength and tensile strength, but average impact merit is just eager to excel a lot, and this also illustrates that these four kinds of elements are very large for the impact of drill pipe body mechanical property.
Embodiment 1 and embodiment 2 are compared with comparative example 2, and in chemical composition, 3 kinds of element proportionings such as Mn, Mo, V have essential distinction, and Ni element adds for having a mind to.While reduction Mn element, other elements adjust, and significantly change the performance of steel grade.
Compare with comparative example 2, embodiment 1,2 is while tensile strength increases, and elongation, average impact merit all increase about 100%, and emphasis is also the standard regulation that comparative example 2 does not meet ballistic work in " drilling rod specification " and is more than or equal to 54J.
Compare with comparative example 1,2, compare with the thermal treatment process of other drill pipe bodies simultaneously, thermal treatment process of the present invention has originality, and the technology mode of primary quenching+double tempering, the invention of every temperature parameter are complete independently, also completely different with other producers.The steel grade that drill pipe body uses is low alloy steel, can be improved the mechanical property of body completely by Tempering and Quenching.
The present invention is by conservative control steel grade constituent content and Fabrication parameter, decrease the use of the precious metals such as steel grade Mo, Ni, V, reduce the cost of drill pipe body, effectively improve the intensity of drill pipe body simultaneously, also obtain higher impelling strength, the technique that drill pipe body adds double tempering carrys out stabilizing mechanical performance, reduces body hardness; The application of thickening mode ensure that organizing of upset end and body is basically identical, for ultra deep well operation and Pipeline Crossing Program operation provide good solution.The drill pipe body utilizing the present invention to manufacture can be applied to the drilling well of ultra deep well operating mode, also can be applied in Pipeline Crossing Program operation.
Claims (5)
1. be applied to a manufacture method for the drill pipe body of ultra deep well operating mode, it is characterized in that comprising the steps:
The first step, makes drill pipe body
Be heated to 1200-1300 DEG C by within the both ends 500mm of the weldless steel tube prepared according to steel grades, remove the oxide skin on surface, then adopt three molding modes that two end upsettings are formed drill pipe body;
Second step, quenching
The drill pipe body that the above-mentioned the first step obtains is warming up to 890 DEG C-930 DEG C, and be incubated and come out of the stove after 100-120 minute, enter the hardening liquid of 10 DEG C-30 DEG C in 15 seconds, the cool time is no less than 30 seconds;
3rd step, tempering
A) tempering: the drill pipe body that above-mentioned second step obtains is warming up to 550 DEG C-580 DEG C, is incubated and comes out of the stove after 90-120 minute, naturally cool to room temperature;
B) double tempering: continued to be warming up to 570 DEG C-600 DEG C by the drill pipe body that a tempering obtains, is incubated and comes out of the stove after 120-150 minute, naturally cool to room temperature, obtain final drill pipe body;
The steel grades of this drill pipe body and content are: C:0.22-0.28, Si:0.20-0.35, Mn:0.45-0.65, Cr:0.95-1.15, Mo:0.75-0.85, Ni :≤0.08, V:0.05-0.10, Cu:0-0.05, S :≤0.005, P :≤0.015, surplus is Fe, and unit is mass percent;
The yield strength of described drill pipe body reaches 1200-1300MPa, and tensile strength is greater than 1250MPa, and elongation after fracture is greater than 18%, and the v-notch ballistic work at 20 DEG C is greater than 80J, and grain fineness number is less than or equal to 9 grades.
2. a kind of manufacture method being applied to the drill pipe body of ultra deep well operating mode according to claim 1, is characterized in that adopting high-pressure water descaling technology to remove the oxide skin on weldless steel tube surface in the above-mentioned the first step.
3. a kind of manufacture method being applied to the drill pipe body of ultra deep well operating mode according to claim 1, is characterized in that adopting mechanical type upsetter to be thickeied at weldless steel tube two ends in the above-mentioned the first step.
4. a kind of manufacture method being applied to the drill pipe body of ultra deep well operating mode according to claim 1, it is characterized in that the concrete technology step of three molding modes in the described the first step is: first carry out once shaped, then carry out continuous print two or three times shaping, in the time being at every turn molded over 1-2s, complete thickening.
5. a kind of manufacture method being applied to the drill pipe body of ultra deep well operating mode according to claim 3, it is characterized in that the concrete technology step of three molding modes in the described the first step is: first carry out once shaped, then carry out continuous print two or three times shaping, in the time being at every turn molded over 1-2s, complete thickening.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561500A (en) * | 2013-10-21 | 2015-04-29 | 湖州市千金宝云机械铸件有限公司 | Thermal treatment method for mining drill bit |
| CN103898304B (en) * | 2014-03-25 | 2016-08-17 | 江苏和信石油机械有限公司 | The Technology for Heating Processing of Prospection drill rod body |
| CN105803162B (en) * | 2016-06-08 | 2017-11-21 | 中国石油集团渤海石油装备制造有限公司 | A kind of 165 steel grade drill pipe weld seam heat treatment methods |
| CN107151761A (en) * | 2016-10-28 | 2017-09-12 | 中国石油集团渤海石油装备制造有限公司 | A kind of high toughness petroleum drilling rod and its manufacture method |
| CN107151758B (en) * | 2016-10-28 | 2019-05-10 | 中国石油集团渤海石油装备制造有限公司 | The manufacturing method of resistant to carbon dioxide and chloride ion corrosion oil drill rocker tube body |
| CN112916647A (en) * | 2020-12-30 | 2021-06-08 | 天津钢管制造有限公司 | Method for improving pipe end size precision of deep-sea steel catenary riser |
| CN114921719A (en) * | 2022-04-15 | 2022-08-19 | 山东威玛装备科技股份有限公司 | High-strength drill rod for sulfur-containing oil and gas field |
| CN115094306B (en) * | 2022-05-27 | 2023-05-09 | 河钢股份有限公司 | Steel plate with yield strength of 960MPa for ocean engineering and production method thereof |
| CN115449604A (en) * | 2022-09-21 | 2022-12-09 | 无锡双马钻探工具有限公司 | Non-excavation integral drill rod processing technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101613829A (en) * | 2009-07-17 | 2009-12-30 | 天津钢管集团股份有限公司 | The high-strength toughness oil and gas well borehole operation of 150ksi grade of steel steel pipe and production method thereof |
| CN101781702A (en) * | 2010-03-16 | 2010-07-21 | 中国石油集团渤海石油装备制造有限公司 | Process for heat treatment of tube body of drill rod |
-
2013
- 2013-06-17 CN CN201310238666.6A patent/CN103320697B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101613829A (en) * | 2009-07-17 | 2009-12-30 | 天津钢管集团股份有限公司 | The high-strength toughness oil and gas well borehole operation of 150ksi grade of steel steel pipe and production method thereof |
| CN101781702A (en) * | 2010-03-16 | 2010-07-21 | 中国石油集团渤海石油装备制造有限公司 | Process for heat treatment of tube body of drill rod |
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Effective date of registration: 20180831 Address after: 83rd Second Avenue, Binhai New Area Development Zone, Tianjin City, 300457 days Co-patentee after: Bohai Nengke Drill Pipe Co., Ltd. Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300457 3 building, Tianjin TEDA outsourcing service Industrial Park, 19 West Road, Tanggu, Tianjin. Co-patentee before: HG (Hebei) Petroleum Special Tube Co., Ltd. Patentee before: CNPC Bohai Equipment Manufacturing Co., Ltd. |
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Effective date of registration: 20200925 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: BOHAI NKK DRILLING PIPE Co.,Ltd. Address before: 300457 No. second, 83 Avenue, Tianjin Binhai New Area Development Zone Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: BOHAI NKK DRILLING PIPE Co.,Ltd. |
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