CN104988407B - Oil drilling sulfur resistant drill pipe and preparation method thereof - Google Patents
Oil drilling sulfur resistant drill pipe and preparation method thereof Download PDFInfo
- Publication number
- CN104988407B CN104988407B CN201510348068.3A CN201510348068A CN104988407B CN 104988407 B CN104988407 B CN 104988407B CN 201510348068 A CN201510348068 A CN 201510348068A CN 104988407 B CN104988407 B CN 104988407B
- Authority
- CN
- China
- Prior art keywords
- drill pipe
- pipe body
- drilling rod
- seconds
- drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of oil drilling sulfur resistant drill pipe and preparation method thereof, it is related to oil-well drilling equipment technical field.The steel grades of the drill pipe body are：C：0.22 0.30, Si：0.22 0.35, Mn：0.40 0.55, Cr：1.00 1.15, Mo：0.40 0.55, V：0.02 0.05, B：≤ 0.0005, Nb：0.010 0.025, S：≤ 0.005, P：≤ 0.008, balance of Fe, unit is mass percent；The drilling rod material yield strength reaches 730 780MPa, and tensile strength is more than 820MPa, and elongation after fracture is more than 16%, and Charpy v-notch ballistic work is more than 140J；Tested by 720 hours anti-H 2 S stress corrosions under NACE standard liquids.The present invention solves that drilling rod in prior art is high to the stress corrosion opening cracking maleate sensitivity of hydrogen sulfide, easily cause the problems such as drilling rod stress corrosion cracking, hydrogen embrittlement, fracture, failure, can reduce drilling rod to H2The sensitiveness of S stress corrosions, improves intensity, impact flexibility and the corrosion resistance of drill pipe body, meets Production requirement.
Description
Technical field
The present invention relates to oil-well drilling equipment technical field, especially a kind of oil drilling sulfur resistant drill pipe and its preparation side
Method.
Background technology
Domestic Sichuan-chongqing Region petroleum resources generally contains H2S, and senior steel drill rod is to the stress corrosion cracking of hydrogen sulfide
It is very sensitive, there are problems that of hydrogen sulfide easily cause Hi-grade steel drilling rod occur stress corrosion cracking, cause drilling rod
The problems such as body fracture, failure, greatly harm is caused to drilling engineering, or even have a strong impact on production, therefore sulfur resistive need to be used
Drilling rod, although sulfur resistant drill pipe has been produced and applied both at home and abroad, the anti-H 2 S stress corrosion performance and anti-impact of sulfur resistant drill pipe
Hit performance and still suffer from defect, the material and manufacturing process of body still have much room for improvement.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of oil drilling sulfur resistant drill pipe and preparation method thereof, solve
Drilling rod is high to the stress corrosion opening cracking maleate sensitivity of hydrogen sulfide in prior art, easily cause drilling rod stress corrosion cracking, hydrogen embrittlement, disconnected
The problems such as splitting, fail, the material by improving drilling rod of the invention greatly reduces drilling rod to H2The sensitiveness of S stress corrosions, carries
The high intensity of drill pipe body, impact flexibility and corrosion resistance, disclosure satisfy that Production requirement.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of oil drilling sulfur resistant drill pipe and its
Preparation method, the steel grades of the drill pipe body are：C：0.22-0.30, Si：0.22-0.35, Mn：0.40-0.55, Cr：
1.00-1.15, Mo：0.40-0.55, V：0.02-0.05, B：≤ 0.0005, Nb：0.010-0.025, S：≤ 0.005, P：≤
0.008, balance of Fe, unit is mass percent；The drilling rod material yield strength reaches 730-780MPa, and tensile strength is more than
820MPa, elongation after fracture is more than 16%, and Charpy v-notch ballistic work is more than 140J；It is small by 720 under NACE standard liquids
When anti-H 2 S stress corrosion experiment.
The invention mainly comprises following steps：
The first step, casts seamless steel tube blank, chemical composition is met the requirements；
Second step：Drill pipe body is made, then the heating one end of seamless steel tube blank will be managed by mechanical upsetter
End is thickeied, and the other end of seamless steel pipe is thickeied according to the same manner, and machining is made drill pipe body；
3rd step, quenching
4th step, tempering, naturally cools to room temperature, reaches required performance.
Further, second step, will be heated to 1200-1300 DEG C, Ran Houtong within one end 400mm of seamless steel tube blank
Mechanical upsetter is crossed using post forming mode by end upsetting, then adds the other end of seamless steel pipe according to the same manner
Thickness, machining, is made drill pipe body；
3rd step, quenching
Drill pipe body is warming up to 880 DEG C -920 DEG C, insulation is come out of the stove after 80-110 minutes, 10 DEG C -25 is entered in 20 seconds
DEG C quenching liquid, the cool time be no less than 35 seconds；
4th step, tempering
Drill pipe body is warming up to 680 DEG C -720 DEG C, 110-140 minutes is incubated, 10 DEG C -25 DEG C are used in subsequent 15 seconds
Water cooled down, cool time be no less than 15 seconds, then naturally cool to room temperature.
It is using the beneficial effect produced by above-mentioned technical proposal：The drill pipe body is contained by rationally control steel grade element
Amount, and B, Nb element are increased, material is reduced to H2The sensitiveness of S stress corrosions, while by the fast cold treatment after tempering,
The uniformity of mechanical performance after drill pipe body heat treatment is improve, makes drill pipe body have enough intensity and good impact tough
Property, pass through the 720 hours anti-H 2 S stress corrosions experiment under NACE standard liquids, disclosure satisfy that containing H2The demand of S hole conditions.
Specific embodiment
The present invention is further detailed explanation below.
The chemical composition of the steel grade of drill pipe body of the invention：C：0.22-0.30, Si：0.22-0.35, Mn：0.40-
0.55, Cr：1.00-1.15, Mo：0.40-0.55, V：0.02-0.05, B：≤ 0.0005, Nb：0.010-0.025, S：≤
0.005, P：≤ 0.008, balance of Fe, unit is mass percent.
The chemical composition of drill pipe body is matched according to the present invention, is made Φ 101.6x9.65mm, 9000- long
The seamless steel pipe of 9500mm, is manufactured in accordance with the following steps.Its manufacture method is：It is made drill pipe body；Then to drill pipe
Body carries out bulk heat treatmet, and Technology for Heating Processing is quenching+tempering rapid cooling technique.
Specific technique and step are as follows：
The first step, casts seamless steel tube blank, chemical composition is met the requirements；
Second step, seamless steel pipe two ends is thickeied and is made drill pipe body；
To be heated to 1200-1300 DEG C within one end 400mm of seamless steel pipe, mode of heating using 1 intermediate frequency furnace, 1
The mode of pipe end soaking pit, then uses post forming mode by end upsetting by mechanical upsetter, and one end thickeies and completes
The other end is thickeied according to the same manner afterwards, is made drill pipe body；
3rd step, carries out integral quenching
Drill pipe body is transported in the step-by-step movement glowing furnace for being warming up to 880 DEG C -920 DEG C, insulation goes out after 80-110 minutes
Stove, enters 10 DEG C -25 DEG C of quenching liquid in 20 seconds, the cool time is no less than 35 seconds；
4th step, is tempered
Drill pipe body is transported in the step-by-step movement tempering furnace for being warming up to 680 DEG C -720 DEG C, is incubated 110-140 minutes, with
The water in 15 seconds using 10 DEG C -25 DEG C is cooled down afterwards, and cool time is no less than 15 seconds, then naturally cools to room temperature.Bore
Rod tube body maintains body mechanical performance uniformity after heat treatment using fast cold treatment after tempering, improves body impact flexibility,
Reduce body hardness.
When the step 2 thickeies seamless steel pipe two ends, molding mode be using mechanical upsetter, this it is secondary into
Type mode processing step is molded in the time of 1-2s and completes to thicken every time to carry out post forming.
The step 4 tempering after, the drill pipe body be organized as tempered sorbite and ferrite composition, and return
Fiery sorbite percentage is more than 95%.
Here is that the chemical composition for being processed into sulfur resistant drill pipe body matches somebody with somebody such as table 1, and the mechanicalness tested by professional standard
Can carry out to such as table 2；
Table 1
Finished product drill pipe body normal temperature lower yield strength
Table 2
Contrast Tables 1 and 2 can be seen that body of the present invention at normal temperatures yield strength can reach 730-780MPa it
Between, tensile strength is more than 820MPa, and elongation after fracture is more than 16%, Charpy v-notch ballistic work（20℃、7.5x10mm）It is more than
140J。
The finished product drill pipe body prepared using said components and technique, at normal temperatures yield strength reach 730-780MPa it
Between, tensile strength is more than 820MPa, and elongation after fracture is more than 16%, Charpy v-notch ballistic work（20℃、7.5x10mm）It is more than
140J。
Finished product drill pipe body, can be by 720 under NACE standard liquids hour anti-H 2 S under above-mentioned mechanical performance
Stress corrosion (cracking) test.
Therefore, the finished product drill pipe body for being prepared using said components and technique, improves anti-H 2 S stress corrosion performance,
Body impact flexibility is improve, the hardness of body is reduced.
Claims (1)
1. a kind of oil drilling sulfur resistant drill pipe, it is characterised in that the steel grades of the drill pipe body are：C：0.22-0.30, Si：
0.22-0.35, Mn：0.40-0.55, Cr：1.00-1.15, Mo：0.40-0.55, V：0.02-0.05, B：≤ 0.0005, Nb：
0.010-0.025, S：≤ 0.005, P：≤ 0.008, balance of Fe, unit is mass percent；The drilling rod material yield strength
730-780MPa is reached, tensile strength is more than 820MPa, and elongation after fracture is more than 16%, and Charpy v-notch ballistic work is more than
140J；Tested by 720 hours anti-H 2 S stress corrosions under NACE standard liquids；
The preparation method of described oil drilling sulfur resistant drill pipe, mainly comprises the following steps：
The first step, casts seamless steel tube blank, chemical composition is met the requirements；
Second step, is made drill pipe body：1200-1300 DEG C will be heated within one end of seamless steel tube blank, then by machine
Tool formula upsetter, by end upsetting, the other end of seamless steel pipe is thickeied according to the same manner using post forming mode, and machine adds
Work, is made drill pipe body；
3rd step, quenching；Drill pipe body is warming up to 880 DEG C -920 DEG C, insulation is come out of the stove after 80-110 minutes, is entered in 20 seconds
10 DEG C -25 DEG C of quenching liquid, the cool time is no less than 35 seconds；
4th step, tempering：Drill pipe body is warming up to 680 DEG C -720 DEG C, 110-140 minutes is incubated, used in subsequent 15 seconds
10 DEG C -25 DEG C of water is cooled down, and cool time is no less than 15 seconds, then naturally cools to room temperature, reaches required performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510348068.3A CN104988407B (en) | 2015-06-23 | 2015-06-23 | Oil drilling sulfur resistant drill pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510348068.3A CN104988407B (en) | 2015-06-23 | 2015-06-23 | Oil drilling sulfur resistant drill pipe and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104988407A CN104988407A (en) | 2015-10-21 |
| CN104988407B true CN104988407B (en) | 2017-06-30 |
Family
ID=54300300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510348068.3A Active CN104988407B (en) | 2015-06-23 | 2015-06-23 | Oil drilling sulfur resistant drill pipe and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104988407B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113334029B (en) * | 2021-06-04 | 2022-12-09 | 重庆艾肯机电设备有限公司 | Manufacturing method of high-strength drill rod |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11286720A (en) * | 1998-04-03 | 1999-10-19 | Sumitomo Metal Ind Ltd | Manufacture of high strength steel product excellent in sulfide stress cracking resistance |
| JP4609138B2 (en) * | 2005-03-24 | 2011-01-12 | 住友金属工業株式会社 | Manufacturing method of oil well pipe steel excellent in sulfide stress cracking resistance and oil well seamless steel pipe |
| JP4701874B2 (en) * | 2005-06-29 | 2011-06-15 | 住友金属工業株式会社 | Manufacturing method of steel pipe for oil well with excellent resistance to sulfide stress cracking |
| CN102409240B (en) * | 2010-09-21 | 2013-06-19 | 宝山钢铁股份有限公司 | Hydrogen sulfide corrosion-resistant steel for petroleum drill rod and manufacturing method for hydrogen sulfide corrosion-resistant steel |
| CN102140610A (en) * | 2011-03-08 | 2011-08-03 | 上海海隆石油管材研究所 | Steel suitable for drill rod joint in low-temperature environment and heat treatment process of steel |
| CN102330027B (en) * | 2011-10-13 | 2013-07-17 | 宝山钢铁股份有限公司 | 120ksi primary grade sulfur-resistant drill pipe and manufacturing method thereof |
-
2015
- 2015-06-23 CN CN201510348068.3A patent/CN104988407B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104988407A (en) | 2015-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104988407B (en) | Oil drilling sulfur resistant drill pipe and preparation method thereof | |
| CN104532149B (en) | A kind of high tough, anti-H 2 S stress corrosion drilling tool round steel and manufacture method thereof | |
| EP1813687B1 (en) | Method for producing martensitic stainless steel pipe | |
| CN102719752B (en) | Seamless steel pipe with excellent hydrogen sulfide stress corrosion resistance and manufacturing method thereof | |
| US10227828B2 (en) | Ultra-high toughness and high strength drill pipe and manufacturing process thereof | |
| NO343350B1 (en) | Seamless steel tube for oil wells with excellent resistance to sulphide stress cracking and method for producing seamless steel tubes for oil wells | |
| CN108179355A (en) | A kind of high-intensity and high-tenacity spring steel wire and its preparation process | |
| CN113584407A (en) | High-strength high-temperature corrosion resistant martensitic stainless steel and manufacturing method thereof | |
| CN103320697A (en) | Drill rod pipe body applied to ultra-deep well working condition and manufacturing method thereof | |
| CN106319353A (en) | Geological drill rod and manufacturing method thereof | |
| CN106011638A (en) | Expansion casing for heavy oil thermal recovery well and manufacturing method of expansion casing | |
| CN102392181A (en) | Alloy steel, seamless steel pipe and heat treatment technology of shaped steel pipe | |
| CN102409241A (en) | Steel for oil casing pipe, oil casing pipe and manufacturing methods thereof | |
| CN107151761A (en) | A kind of high toughness petroleum drilling rod and its manufacture method | |
| CN109161788B (en) | High-temperature-resistant petroleum casing pipe for thermal recovery well of hot steam injection thickened oil and manufacturing method thereof | |
| CN104131227A (en) | Low-alloy heat-resisting steel pipe and manufacturing method thereof | |
| KR20160121785A (en) | NiCrMo STEEL AND METHOD FOR MANUFACTURING NiCrMo STEEL MATERIAL | |
| CN105940135A (en) | Turbine rotor material for geothermal power generation and method for manufacturing same | |
| CN105714081A (en) | Heat treatment process for drill pipe bodies | |
| JP2003253391A (en) | Spring steel for cold forming | |
| JPS619519A (en) | Manufacture of high strength steel superior in sulfide corrosion cracking resistance | |
| CN103882210B (en) | Thermal treatment process of prospecting tool joint | |
| CN105088082B (en) | A kind of alitizing is modified P110 grades of oil annular tube steels and its tubing manufacture method | |
| CN106755902A (en) | The Technology for Heating Processing of drill pipe body | |
| JP6981240B2 (en) | Manufacturing method of seamless steel pipe and seamless steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Rongkai Inventor after: Liu Anjian Inventor after: Wu Guowei Inventor after: Liu Cong Inventor after: Ji Haitao Inventor after: Liu Rong Inventor after: Zuo Bin Inventor after: Chen Xu Inventor after: Zhang Wenjiang Inventor after: Li Yamin Inventor after: Zhang Huijie Inventor before: Jiang Rongkai Inventor before: Wu Guowei Inventor before: Liu Cong Inventor before: Liu Rong Inventor before: Zhou Qiufen Inventor before: Chen Xu Inventor before: Zhang Wenjiang Inventor before: Li Yamin Inventor before: Zhang Huijie Inventor before: Liu Anjian |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180830 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 Tianjin Binhai New Area 19, Tianjin, TEDA Service Outsourcing Industrial Park 3. Co-patentee before: HG (Hebei) Petroleum Special Tube Co., Ltd. Patentee before: CNPC Bohai Equipment Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200923 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. |