CN105734453B - Martensitic stain less steel oil annular tube steel, tubing and casing and its manufacture method of sulfurated hydrogen stress etching-resisting cracking - Google Patents
Martensitic stain less steel oil annular tube steel, tubing and casing and its manufacture method of sulfurated hydrogen stress etching-resisting cracking Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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Abstract
The invention discloses a kind of martensitic stain less steel oil annular tube steel of sulfurated hydrogen stress etching-resisting cracking, its chemical element mass percent is：0 ＜ C≤0.05%, Si：0.1~0.2%, Mn：0.20~1.0%, Cr：11.0~14.0%, Ni：4.0~7.0%, Mo：1.5~2.5%, N：0.001~0.10%, V：0.03~0.6%, Al：0.01~0.04%, surplus is Fe and other inevitable impurity.The invention also discloses the tubing and casing of the steel making with mentioned component and its manufacture method.The tubing and casing can be used for the H that partial pressure reaches 0.01MPa2S and high concentration CO2、Cl‑Etc. in the crude oil or the oil well of natural gas, gas well under the strong corrosive environment coexisted, and corresponding decay resistance and mechanical performance index can be met in this context.
Description
Technical field
The present invention relates to a kind of metal, tubing and casing and its manufacture method, more particularly to a kind of martensitic stain less steel tubing and casing
With steel, tubing and casing and its manufacture method.
Background technology
With petering out for the easy exploitation energy, limit of mining concentrates on high temperature and high pressure environment more and more, partial pressure reaches
To 0.01MPa H2S and high concentration CO2、Cl-Etc. the strong corrosive environment coexisted.Further, since many petroleum resourceses are located at
More cold area, when saving operation in the winter time, temperature can reach subzero 20 DEG C it is even lower.For such environment, one
As be required for the product of high alloy to meet erosion-resisting requirement, such as super martensitic stainless steel.Super martensitic is not
Steel become rusty in high-temperature high concentration CO2And Cl-There is excellent decay resistance under environment, but containing H2Application in S environment is more
It is limited.
Publication No. CN1729306, publication date be 2 months 2006 No. 1, it is entitled " resistance to carbon dioxide corrosivity and
The Chinese patent literature of the excellent high strength martensitic stainless steel of halophile stress-corrosion cracking " discloses a kind of martensite
Stainless steel, it has more than 860MPa yield strength, and its chemical element mass percent is：C：0.005~0.04%, Si：
Less than 0.5%, Mn：0.1~3.0%, P：Less than 0.04%, S：Less than 0.01%, Cr：10~15%, Ni：4.0~8%, Mo：
2.8~5.0%, Al：0.001~0.10% and N：Less than 0.07%, surplus is Fe and other inevitable impurity；In addition
Its chemical element content also meets：Mo >=2.3-0.89Si+32.2C, metal structure when tempered martensite, tempering mainly by separating out
Carbide and the Laves phases of fine precipitation or the equal intermetallic compounds of σ are formed during tempering.The steel grade has the spy of high intensity
Point, but applicable H2S concentration partial pressure is below 0.003MPa.
Publication No. CN1582342, publication date be 2 months 2005 No. 16, entitled " martensitic stain less steel " China specially
Sharp document discloses a kind of martensitic stain less steel, and its chemical element mass percent is：C：0.01-0.1%, Cr：9-15%, N：
Less than 0.1%, the amount of carbide existing at the old austenite grain boundary in steel be 0.5% (volume) below.The steel grade is in horse
There is Eco-power feature in family name's body stainless steel, there is preferable resistance to CO2Corrosive nature, but applicable H2S partial pressures are only
0.0003MPa。
Because of this it may be desirable to obtain a kind of oil annular tube Steel material, tubing and casing and its manufacture method made from the material, the oil
Sleeve pipe can be used for the H that partial pressure reaches 0.01MPa2S and high concentration CO2、Cl-Etc. the crude oil under the strong corrosive environment coexisted or
In the oil well of natural gas, gas well, and corresponding decay resistance and mechanical performance index can be met in this context.
The content of the invention
An object of the present invention is to provide a kind of martensitic stain less steel tubing and casing of sulfurated hydrogen stress etching-resisting cracking
With steel, the martensitic stain less steel tubing and casing of sulfurated hydrogen stress etching-resisting cracking can be made using the stainless steel, the tubing and casing can
Reach 0.01MPa H for partial pressure2S and high concentration CO2、Cl-Etc. the crude oil or natural gas under the strong corrosive environment coexisted
Oil well, in gas well, and corresponding decay resistance and mechanical performance index can be met in this context.
Based on foregoing invention purpose, the invention provides a kind of martensitic stain less steel oil of sulfurated hydrogen stress etching-resisting cracking
Casing steel, its chemical element mass percent are：0 ＜ C≤0.05%, Si：0.1~0.2%, Mn：0.20~1.0%, Cr：
11.0~14.0%, Ni：4.0~7.0%, Mo：1.5~2.5%, N：0.001~0.10%, V：0.03~0.6%, Al：
0.01~0.04%, surplus is Fe and other inevitable impurity.
In the technical program, other inevitable impurity are mainly S, P and O.
To achieve the above object of the invention, inventor is to the composition composition of martensitic stain less steel, heat treatment condition, metallographic structure
And hardness confrontation sulfide-stress cracking ability has carried out careful research.As a result find, can shape in a drawing process
Into a small amount of secondary martensite, by reducing temperature the tempering again implemented, secondary martensite can be transformed into inversion Ovshinsky
Body, the reversed austenite stability that is formed at a lower temperature improve, so as to reduce the hardness of steel (can be reduced to 27HRC with
Under), it ensure that the ability that steel reaches the excellent halophile stress corrosion cracking under 0.01MPa environment in hydrogen sulfide sectional pressure.
In addition, (preferably meet V by adding V:(C+N)=2:1~8:1, wherein V, C, N represents the quality percentage of respective element respectively
Than), vanadium carbide nitride has been separated out in drawing process, the gap effect of carbon and nitrogen-atoms in crystal structure has been reduced, improves -20
Impact flexibility at a temperature of DEG C.
The present invention is completed based on above-mentioned cognition.The martensite of sulfurated hydrogen stress etching-resisting cracking of the present invention
The major design principle of each chemical element in stainless steel oil annular tube steel is：
C：C is used as austenite former in martensitic stain less steel, can increase stainless steel in height by improving C content
The percentage of the lower austenitizing of temperature, then obtains the martensite under room temperature condition, so as to improve intensity.But when C content is excessive, meeting
So that the decay resistance of stainless steel declines, while toughness reduces.In order to ensure desired intensity, C mass percents are preferred
More than 0.003%, but when reaching more than 0.05%, toughness and corrosion resistance are easily reduced.
Si：Si is deoxidier important in steelmaking process, but Si has promotion σ phases and iron in the higher stainless steel of Cr contents
The risk that ferritic is mutually formed, σ phases and ferritic phase have detrimental effect for the toughness and decay resistance of stainless steel.Therefore
Si mass percents scope is limited as 0.1~0.2%.
Mn：Mn can improve the intensity of stainless steel, in the present invention, in order to ensure that it is required strong that the tubing and casing made has
Degree, Mn mass percent are not less than 0.2%.But when Mn mass percent is more than 1.0%, toughness declines.Therefore by Mn
Mass percent be limited in the range of 0.2~1.0%, preferably 0.2~0.5%.
Cr：Cr be in stainless steel improve corrosion resisting property important element, Cr addition cause stainless steel surface even in
Also corrosion resistant passivating film can be quickly formed in air, the resistance to CO under the high temperature resistant environment for the tubing and casing for improving making2Corrosivity
Energy.In order to obtain the resistance to CO with more than 150 DEG C2Corrosive nature, Cr mass percent is limited not in stainless steel of the invention
Less than 11.0%.On the other hand, if Cr mass percent is more than 14.0%, the risk of ferrite precipitation can be increased, to product
Hot-working character and decay resistance all adversely affect.Therefore, Cr mass percent is limited in 11.0~14.0% models
In enclosing, preferably 11.5~13.5%.
Ni：Ni is to expand austenitic area, while improves the decay resistance and toughness of stainless steel, can especially be improved in height
Stress corrosion dehiscence resistant ability under the conditions of temperature.To obtain the effect, the mass percent for limiting Ni is not less than 4.0%.But Ni
A kind of more valuable alloying element, if while the present invention stainless steel in Ni mass percent more than 7%, tissue in
Intensity can not be reduced by the austenite phase of Heat Treatment Control intensity by occurring.Therefore, Ni mass percent is limited 4.0
In the range of~7.0%, preferably 4.5~6.5%.
Mo：Mo is the resistance to Cl of increase stainless steel-In pitting corrosion element, the especially hot environment more than 150 DEG C.This hair
Bright middle restriction Mo mass percent is not less than 1.5%.But Mo is precious metal element, while Mo quality percentage in the present invention
If than that more than 2.5%, can form the ferrite of more amount, hot-working character and decay resistance to product have unfavorable shadow
Ring.Therefore, Mo mass percent is limited in the range of 1.5~2.5%, preferably 1.8~2.3%.
N：N is the element for improving the resistance to spot corrosion of stainless steel, at the same N can be improved as austenite former it is of the invention stainless
The ratio of martensite and then raising intensity of steel.To reach the effect, the mass percent that the present invention limits N is not less than 0.001%.
But easily form nitride when N mass percent is more than 0.10% and reduce toughness.Therefore, N mass percent is limited
It is scheduled in the range of 0.001~0.10%.
V：V is important microalloy element, in general can by the pinning effect crystal grain thinning of Carbonitride Precipitation,
Improve intensity.It has also been found that, vanadium carbide nitride can be separated out in drawing process due to adding V in the present invention, so as to reduce steel crystalline substance
The interstitial atom of carbon and nitrogen acts in body structure, reduces the hardness of steel, and the impact improved under low temperature (such as -20 DEG C) is tough
Property.To reach the effect, it is necessary to which the mass percent for limiting V is not less than 0.03%.On the other hand, if V mass percent is super
0.6% is crossed, then toughness reduces.
Al：Al is to be added as deoxidier in smelting process, in order to reach the effect of deoxidation, limits Al quality percentage
Than not less than 0.01%.But when Al mass percent is more than 0.04%, toughness declines.Therefore, Al quality percentage is limited
Than in the range of 0.01~0.04%.
O：O is inevitable impurity, is existed in the form of an oxide in steel, hot-working character, impact flexibility to steel
There is detrimental effect with decay resistance.Therefore, O mass percent is limited below 0.004%.
P：P is inevitable impurity, is to make anti-CO under high temperature2The harmful element that corrosive nature declines, and to hot-working
Performance has a negative impact.If P mass percent, more than 0.03%, erosion-resisting performance can not meet that the environment of high temperature will
Ask.Therefore, P mass percent scope is limited below 0.03%, preferably less than 0.015%.
S：S is inevitable impurity, and it is dysgenic to be so that hot-working character reduces On Impact Toughness generation simultaneously
Harmful element.If S content more than 0.01%, can not normally manufacture steel pipe.Therefore S mass percent is limited 0.01%
Hereinafter, preferably less than 0.005%.
The geneva of sulfurated hydrogen stress etching-resisting cracking can be made by using the stainless steel based on such scheme by the present invention
Body stainless steel tubing and casing, the tubing and casing can be used for the H that partial pressure reaches 0.01MPa2S and high concentration CO2、Cl-It is strong etc. what is coexisted
In the oil well of crude oil or natural gas under corrosive environment, gas well, and there is excellent halophile stress corrosion in this context
Cracking performance, the high temperature corrosion property of resistance to carbon dioxide and chlorion and excellent low-temperature impact toughness, while also have
The yield strength of 95ksi levels, meet corresponding decay resistance and mechanical performance index.
Further, in martensitic stain less steel oil annular tube steel of the present invention, V is also met:(C+N)=2:1~8:
1, wherein V, C, N represents that the mass percent of respective element (for example, when V content is 0.1%, V generations is corresponded in the formula respectively
The value entered should be 0.1, rather than 0.001), to reach the more preferably effect of foregoing reduction hardness.
Preferably, in martensitic stain less steel oil annular tube steel of the present invention, Mn is 0.2~0.5%.
Preferably, in martensitic stain less steel oil annular tube steel of the present invention or above-mentioned, 0.003% ＜ C≤0.05%.
Another object of the present invention is to provide a kind of tubing and casing, the tubing and casing can be used for the H that partial pressure reaches 0.01MPa2S
And the CO of high concentration2、Cl-Etc. in the crude oil or the oil well of natural gas, gas well under the strong corrosive environment coexisted, and in the environment
In can meet corresponding decay resistance and mechanical performance index.
Based on foregoing invention purpose, the invention provides a kind of tubing and casing, and it uses the martensite of any of the above-described scheme not
Rust steel oil annular tube steel is made.
Further, tubing and casing of the present invention, its yield strength is more than 655MPa, and it has in hydrogen sulfide sectional pressure
Reach the ability that sulfurated hydrogen stress etching-resisting ftractures in the environment of 0.01MPa.
Further, tubing and casing of the present invention, its yield strength is more than 655MPa, and it has in hydrogen sulfide sectional pressure
Reach the ability that sulfurated hydrogen stress etching-resisting ftractures in the environment of 0.01MPa, and its -20 DEG C of low-temperature flexibility ballistic works are more than
100J。
A further object of the present invention is to provide a kind of manufacture method of above-mentioned tubing and casing.
Based on foregoing invention purpose, the invention provides the manufacture method of the tubing and casing of any of the above-described scheme, and it is wrapped successively
Include step：
(1) pipe is manufactured；
(2) it is seamless steel pipe by billet production；
(3) seamless steel pipe is heat-treated as steps described below：
(3a) is quenched, to form martensitic structure；
(3b) is tempered for the first time：Seamless steel pipe is heated to T1 temperature and carries out first time tempering, T1 is 600 DEG C -670 DEG C；
(3c) second of tempering：Second is carried out in T2 temperature to be tempered, T2=T1-40 DEG C.
Can be used in the manufacture method of tubing and casing of the present invention, in the step (1) it is conventional as converter, electric furnace,
The method of smelting such as vaccum sensitive stove, pipe is manufactured with the methods of continuous casting, ingot casting breaking down；It can be used in the step (2) common
Seamless steel pipe of Mannesmann's pipe mill by billet production into given size；In the step (3b) first time tempering be in order to
Ensure that stainless steel tube has excellent low-temperature impact toughness.Reversed austenite is formed in martensite lath circle after being tempered for the first time,
Martensite transfor mation can occur because the temperature of formation is higher in cooling procedure for part reversed austenite, form secondary martensite.
The secondary martensite generation transformation that second of tempering in the step (3c) can help to be formed in being tempered for the first time forms new
Reversed austenite, reduce the hardness of steel, improve the ability of sulfide-stress cracking under resistance to hydrogen-sulfide environmental and impact tough
Property.
Further, in the manufacture method of above-mentioned tubing and casing, in the step (3a), seamless steel pipe is heated to AC3
Temperature above is quenched, and is then cooled to less than 100 DEG C.
In such scheme, if being heated in below AC3, it is impossible to so that the abundant austenitizing of stainless steel of the present invention,
The intensity decreases that sufficiently martensitic tissue causes steel pipe, and subsequent time thus cannot be also obtained in cooling procedure
The toughness deficiency that fire processing obtains.
Preferably, in the manufacture method of above-mentioned tubing and casing, in the step (3a), by seamless steel pipe be heated to AC3 with
On temperature, less than 1000 DEG C, seamless steel pipe is then cooled to less than 100 DEG C using 10-100 DEG C/min cooling velocity.
In such scheme, if it is because quenching temperature is higher than that the temperature province preferably below 1000 DEG C, which carries out heating,
1000 DEG C then austenite structure grow up, and then deteriorate impact flexibility.
Embodiment
It is stainless to the martensite of sulfurated hydrogen stress etching-resisting of the present invention cracking below in conjunction with specific embodiments
Steel oil annular tube steel, tubing and casing and its manufacture method make further explanation, but the explanation and illustration is not to this
The technical scheme of invention forms improper restriction.
Embodiment 1-16 and comparative example 1-8
Tubing and casing in above-described embodiment and comparative example is made using following step：
(1) pipe is manufactured：Molten steel corresponding with each embodiment in table 1 and comparative example composition is cast into billet；
(2) it is seamless steel pipe by billet production：Billet perforation tube rolling is made by air cooling after steel pipe using small milling train, is made outer
Footpath 73.02mm × wall thickness 7.01mm seamless steel pipe；
(3) seamless steel pipe is heat-treated as steps described below：
(3a) is quenched：By seamless steel pipe be heated to more than AC3 temperature, less than 1000 DEG C, then using 10-100 DEG C/
Seamless steel pipe is cooled to less than 100 DEG C by more than min cooling velocity, to form martensitic structure；
(3b) is tempered for the first time：Seamless steel pipe is heated to T1 temperature and carries out first time tempering, T1 is 600 DEG C -670 DEG C,
Soaking time 40min；
(3c) second of tempering：Second is carried out in T2 temperature to be tempered, T2=T1-40 DEG C, soaking time 40min.
Above-mentioned table 1 lists the percent mass proportioning of each chemical element of the oil annular tube steel of embodiment and comparative example, with
And Formula V:(C+N) value, V, C, N represent the mass percent of respective element respectively in the formula.Numerical tabular with underscore in table 1
Show the numerical value beyond the framework of the present definition.
Table 2 lists the specific process parameter and the performance of embodiment and comparative example of the manufacture method of embodiment and comparative example
Test result.
Table 2
In upper table 2, comparative example 1-4 corresponds to the steel grades for employing comparative example 1-4 in table 1, comparative example 5-8 difference respectively
The corresponding percent mass proportioning for employing embodiment 1-4 chemical element in table 1, in order to prove technique to this case implementation result
Influence, step (3c) is not carried out in comparative example 5-8 manufacture method.
In upper table 2, the performance test results come from following tests：
(1) strength test：Manufactured seamless steel pipe is processed into API arc samples, taken the mean after being examined by API standard
Draw, obtain YS (yield strength) and TS (tensile strength).
(2) impact flexibility is tested：Impact flexibility is characterized with Charpy V-type impact absorbing energy, is taken on seamless steel pipe and cuts volume
For 5*10*55 (mm) size V-type impact specimen, test temperature is -20 DEG C, by being taken the mean after AGB/T229 standard tests, and
It is converted into that 10*10*55 (mm) is full-scale to obtain the impact flexibility at -20 DEG C according to API5CT standards.
(3) hardness test：Hardness test is carried out to seamless steel pipe cross section using Rockwell apparatus, test temperature is -20
DEG C, take the hardness being worth at -20 DEG C that is averaged of three hardness points.
(4) corrosion test：Seamless steel pipe sample is immersed in autoclave in 150 DEG C of liquid, CO2Partial pressure is 6MPa, Cl-
Concentration is 100000mg/L, flow rate of liquid 1m/s, test period 240h, the sample weight before and after contrast test, is calculated
Go out uniform corrosion rate.
(5) SSC (constant load sulfide-stress cracking) is tested：According to the method A in GB/T 4157-2006 standards
SSC experiments are carried out using NOL ring testing machine.Use 0.01MPa H2(remaining is CO to S gases2) and the 25%NaCl that is saturated
Solution (pH4.0), 24 DEG C of test temperature, 720 hours test periods, stress examination is carried out with 85% minimum prescribed yield strength
Test, each embodiment is detected using three samples, the test period terminate after sample is checked, inspection result is listed in
Table 2, wherein " √ " represents no crackle, "×" represents to generate crackle.
From upper table 2, the tubing and casing in embodiment 1-16 has intensity of the YS in more than 655MPa, meets 95ksi steel
Level requires that -20 DEG C of impact flexibility reach more than 100J, and hardness in below 27HRC, at 150 DEG C and contains CO2With high Cl-Concentration
In the environment of general corrosion resistance function admirable, and SSC result of the tests display that no sulphide stress corrosion under 24 DEG C of experimental conditions
Cracking, better than the respective performances of the tubing and casing in comparative example 1-8, there is high tenacity, the remarkable advantage of highly corrosion resistant, available for point
Pressure reaches 0.01MPa H2S and high concentration CO2、Cl-Etc. the crude oil under the strong corrosive environment coexisted or the oil well of natural gas,
In gas well, and meet corresponding decay resistance and mechanical performance index in this context.
It should be noted that listed above is only specific embodiment of the invention, it is clear that real the invention is not restricted to more than
Example is applied, the similar change for having many therewith.If those skilled in the art directly exported from present disclosure or
All deformations associated, all should belong to protection scope of the present invention.
Claims (8)
- A kind of 1. martensitic stain less steel oil annular tube steel of sulfurated hydrogen stress etching-resisting cracking, it is characterised in that its chemical element Mass percent is：0 ＜ C≤0.05%, Si：0.1~0.2%, Mn：0.20~1.0%, Cr：11.0~14.0%, Ni：4.0~7.0%, Mo：1.5~2.5%, N：0.001~0.10%, V：0.03~0.6%, Al：0.01~0.04%, surplus be Fe and other not Evitable impurity；It also meets V:(C+N)=2:1~8:1, wherein V, C, N represents the mass percent of respective element respectively；Described -20 DEG C of low-temperature flexibility ballistic works of martensitic stain less steel oil annular tube steel are more than 100J.
- 2. martensitic stain less steel oil annular tube steel as claimed in claim 1, it is characterised in that wherein Mn is 0.2~0.5%.
- 3. martensitic stain less steel oil annular tube steel as claimed in claim 1, it is characterised in that wherein 0.003% ＜ C≤ 0.05%.
- 4. a kind of tubing and casing, it uses the martensitic stain less steel oil annular tube steel as described in any one in claim 1-3 .
- 5. tubing and casing as claimed in claim 4, it is characterised in that its yield strength is more than 655MPa, and it has and vulcanized Hydrogen dividing potential drop reaches the ability of sulfurated hydrogen stress etching-resisting cracking in the environment of 0.01MPa.
- 6. the manufacture method of the tubing and casing as described in any one in claim 4-5, it includes step successively：(1) pipe is manufactured；(2) it is seamless steel pipe by billet production；(3) seamless steel pipe is heat-treated as steps described below：(3a) is quenched, to form martensitic structure；(3b) is tempered for the first time：Seamless steel pipe is heated to T1 temperature and carries out first time tempering, T1 is 600 DEG C -670 DEG C；(3c) second of tempering：Second is carried out in T2 temperature to be tempered, T2=T1-40 DEG C.
- 7. the manufacture method of tubing and casing as claimed in claim 6, it is characterised in that in the step (3a), by seamless steel The temperature that pipe is heated to more than AC3 is quenched, and is then cooled to less than 100 DEG C.
- 8. the manufacture method of tubing and casing as claimed in claim 7, it is characterised in that in the step (3a), by seamless steel Pipe be heated to more than AC3 temperature, less than 1000 DEG C, then seamless steel pipe is cooled down using 10-100 DEG C/min cooling velocity To less than 100 DEG C.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169894.6A CN105734453B (en) | 2016-03-23 | 2016-03-23 | Martensitic stain less steel oil annular tube steel, tubing and casing and its manufacture method of sulfurated hydrogen stress etching-resisting cracking |
| PCT/CN2017/077627 WO2017162160A1 (en) | 2016-03-23 | 2017-03-22 | Steel for hydrogen sulfide stress corrosion cracking resistant martensitic stainless steel oil casing pipe, and oil casing pipe and production method therefor |
| SA518400073A SA518400073B1 (en) | 2016-03-23 | 2018-09-20 | Steel for hydrogen sulfide stress corrosion cracking resistant martensitic stainless steel oil casing pipe, and oil casing pipe and production method therefor |
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| CN201610169894.6A CN105734453B (en) | 2016-03-23 | 2016-03-23 | Martensitic stain less steel oil annular tube steel, tubing and casing and its manufacture method of sulfurated hydrogen stress etching-resisting cracking |
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| CN105734453B (en) * | 2016-03-23 | 2018-01-26 | 宝山钢铁股份有限公司 | Martensitic stain less steel oil annular tube steel, tubing and casing and its manufacture method of sulfurated hydrogen stress etching-resisting cracking |
| CN106282772A (en) * | 2016-08-30 | 2017-01-04 | 苏州利德精工制造有限公司 | A kind of wind power plant bearing and Technology for Heating Processing thereof |
| CN107937828B (en) * | 2017-12-01 | 2020-10-02 | 宝鼎科技股份有限公司 | F6NM martensitic stainless steel cylinder forging and heat treatment method |
| EP3767000A4 (en) * | 2018-05-25 | 2021-03-03 | JFE Steel Corporation | Martensitic stainless steel seamless steel tube for oil well pipes, and method for producing same |
| CN110763612B (en) * | 2018-07-25 | 2022-10-11 | 中国石油化工股份有限公司 | Method for researching influence of martensite on stress corrosion cracking performance of austenitic steel |
| CN110779856B (en) * | 2019-11-20 | 2022-05-20 | 中国核动力研究设计院 | Sample installation device and method for lead-bismuth alloy melt corrosion test |
| CN113584407A (en) * | 2020-04-30 | 2021-11-02 | 宝山钢铁股份有限公司 | High-strength high-temperature corrosion resistant martensitic stainless steel and manufacturing method thereof |
| CN111575588B (en) * | 2020-06-08 | 2021-06-22 | 浦项(张家港)不锈钢股份有限公司 | Martensite precipitation hardening stainless steel and preparation method and application thereof |
| CN114318123A (en) * | 2020-09-29 | 2022-04-12 | 宝山钢铁股份有限公司 | High-strength low-hardness low-cost 13Cr oil casing steel, oil casing and manufacturing method thereof |
| US20240018636A1 (en) * | 2021-01-28 | 2024-01-18 | Nippon Steel Corporation | Steel material |
| CN115369313A (en) * | 2021-05-17 | 2022-11-22 | 宝山钢铁股份有限公司 | High-toughness corrosion-resistant martensitic stainless steel oil casing pipe and manufacturing method thereof |
| CN115323125A (en) * | 2022-08-19 | 2022-11-11 | 上海交通大学 | Heat treatment method for improving low-temperature toughness of super martensitic stainless steel |
| CN115386808B (en) * | 2022-09-28 | 2023-05-30 | 延安嘉盛石油机械有限责任公司 | Corrosion-resistant oil casing and preparation method and application thereof |
| CN116288064B (en) * | 2022-12-14 | 2024-05-14 | 鞍钢股份有限公司 | Ultra-high-strength corrosion-resistant low Wen Haigong steel plate and manufacturing method thereof |
| CN116426725B (en) * | 2023-04-28 | 2024-05-17 | 安徽元久机械科技有限公司 | 15-5 Stainless steel modification method and product prepared by same |
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| CN1429279A (en) * | 2000-05-19 | 2003-07-09 | 达尔米内公司 | Martensitic stainless steel and seamless steel pipes produced with it |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105734453B (en) * | 2016-03-23 | 2018-01-26 | 宝山钢铁股份有限公司 | Martensitic stain less steel oil annular tube steel, tubing and casing and its manufacture method of sulfurated hydrogen stress etching-resisting cracking |
-
2016
- 2016-03-23 CN CN201610169894.6A patent/CN105734453B/en active Active
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2017
- 2017-03-22 WO PCT/CN2017/077627 patent/WO2017162160A1/en active Application Filing
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| CN1429279A (en) * | 2000-05-19 | 2003-07-09 | 达尔米内公司 | Martensitic stainless steel and seamless steel pipes produced with it |
| CN1816639A (en) * | 2003-07-22 | 2006-08-09 | 住友金属工业株式会社 | Martensitic stainless steel |
| CN1836056A (en) * | 2003-08-19 | 2006-09-20 | 杰富意钢铁株式会社 | High strength stainless steel pipe excellent in corrosion resistance for use in oil well and method for production thereof |
| JP2015071822A (en) * | 2013-09-04 | 2015-04-16 | Ｊｆｅスチール株式会社 | Method for producing high strength stainless steel pipe, and high strength stainless steel pipe |
| CN103938124A (en) * | 2014-03-26 | 2014-07-23 | 西安石油大学 | CO2 and Cl<-> corrosion resistant high-strength 15Cr oil pipe for high-temperature high-pressure wells |
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| WO2017162160A1 (en) | 2017-09-28 |
| SA518400073B1 (en) | 2021-07-27 |
| CN105734453A (en) | 2016-07-06 |
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