CN105925910A - High-strength abrasion-resistant steel for petroleum drill bit - Google Patents

High-strength abrasion-resistant steel for petroleum drill bit Download PDF

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Publication number
CN105925910A
CN105925910A CN201610513445.9A CN201610513445A CN105925910A CN 105925910 A CN105925910 A CN 105925910A CN 201610513445 A CN201610513445 A CN 201610513445A CN 105925910 A CN105925910 A CN 105925910A
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CN
China
Prior art keywords
drill bit
resistant steel
present
petroleum drill
abrasion
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.)
Pending
Application number
CN201610513445.9A
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Chinese (zh)
Inventor
贺昶明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Xingzhi Zhihui Intellectual Property Operation Co Ltd
Original Assignee
Sichuan Xingzhi Zhihui Intellectual Property Operation Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Xingzhi Zhihui Intellectual Property Operation Co Ltd filed Critical Sichuan Xingzhi Zhihui Intellectual Property Operation Co Ltd
Priority to CN201610513445.9A priority Critical patent/CN105925910A/en
Priority to PCT/CN2016/097430 priority patent/WO2018006485A1/en
Publication of CN105925910A publication Critical patent/CN105925910A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • 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
    • 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
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron

Abstract

The invention discloses a high-strength abrasion-resistant steel for a petroleum drill bit. By means of the high-strength abrasion-resistant steel for the petroleum drill bit, the problem that when novel abrasion-resistant materials are welded to the tooth surfaces to prolong the service life of cutting teeth of a drill bit, the manufacturing cost is high is solved. The high-strength abrasion-resistant steel for the petroleum drill bit comprises, by mass, 0.8%-1.0% of C, 0.3%-0.4% of Cr, 0.3%-0.4% of Mn, 0.1%-0.3% of Si, 0.05%-0.1% of Al, 0.05%-0.1% of B, 0.05%-0.1% of Cu, 0.05%-0.1% of V, 0.03% or less of S, 0.03% or less of P, 1% of microelements, and the balance Fe. The high-strength abrasion-resistant steel for the petroleum drill bit has the advantages of being high in yield strength and hardness, good in abrasion resistance and the like.

Description

A kind of high intensity super abrasive steel for oil bit
Technical field
The present invention relates to a kind of metal material, be specifically related to a kind of high intensity super abrasive steel for oil bit.
Background technology
Oil bit is the important tool of oil drilling, and when exploiting oil for drilling through oil, the quality of its service behaviour will directly affect drilling quality, drilling efficiency and drilling cost.
Tungsten carbide insert bit uses high-strength high-ductility hard carbide button, optimizes the tooth row number of design, the number of teeth, grinningly height and the carbide button profile of uniqueness, has given full play to tungsten carbide insert bit high-wearing feature and excellent cutting power.But the flank of tooth surfacing abrasion resistance material of existing steel-tooth bit, by high-abrasive material arrange holding steel-tooth bit height rate of penetration while, improve the Cutter life-span.
When the mode using above-mentioned flank of tooth surfacing abrasion resistance material improves the Cutter life-span, its manufacturing cost is higher, when the technique of surfacing abrasion resistance material is bad, greatly affects using effect and the life-span of steel-tooth bit.
Summary of the invention
The technical problem to be solved is: when using the mode of above-mentioned flank of tooth surfacing abrasion resistance material to improve the Cutter life-span, the problem that its manufacturing cost is higher, it is provided that solve a kind of high intensity super abrasive steel for oil bit of the problems referred to above.
The present invention is achieved through the following technical solutions:
A kind of high intensity super abrasive steel for oil bit, is made up of following composition according to mass percent: C 0.8%～1.0%, Cr 0.3%～0.4%, Mn 0.3%～0.4%, Si 0.1%～0.3%, Al 0.05%～0.1%, B 0.05%～0.1%, Cu 0.05%～0.1%, V 0.05%～0.1%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
The steel consisted of the proportioning of the present invention, its yield strength is high, hardness is high, wearability is good, and then effectively extends the service life of the oil bit that steel of the present invention are made.
Further, the present invention is made up of following composition according to mass percent: C 0.8%～0.9%, Cr 0.3%～0.4%, Mn 0.3%～0.4%, Si 0.1%～0.2%, Al 0.05%～0.1%, B 0.05%～0.1%, Cu 0.05%～0.1%, V 0.05%～0.1%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
Further, it is made up of following composition according to mass percent: C 0.9%, Cr 0.3%, Mn 0.4%, Si 0.2%, Al 0.05%, B 0.1%, Cu 0.05%, V 0.08%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
As optimally set-up mode, the mass percent sum of described C, Cr, Mn and Si is less than 1.9%, and the mass percent sum of described Mn, Al, B, Cu and V is more than 0.65%.
The present invention compared with prior art, has such advantages as and beneficial effect:
The present invention has the advantages such as yield strength is high, hardness is high, wearability is good, and then effectively extends the service life of the oil bit that steel of the present invention are made.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment
A kind of high intensity super abrasive steel for oil bit, is made up of following composition according to mass percent: C 0.8%～1.0%, Cr 0.3%～0.4%, Mn 0.3%～0.4%, Si 0.1%～0.3%, Al 0.05%～0.1%, B 0.05%～0.1%, Cu 0.05%～0.1%, V 0.05%～0.1%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
Particular make-up composition in the present embodiment is as shown in table 1.
Table 1
In the present invention, the concrete preparation method of this material is as follows:
Step one, the pig iron is put into and stove melts as ferrous substrate, through desulfurization, deoxidation, dephosphorization treatment, and make in the pig iron sulfur content less than 0.02%, phosphorus content is less than 0.03%；
Step 2, Mn, Al, Cu, V are joined in ferrous substrate after mix homogeneously, it is heated to molten condition, after keeping 1～2h, add C, Cr, Si, B, mix homogeneously, is incubated 1～2h under the conditions of 900～1050 DEG C, then increases to 1200～1250 DEG C with the programming rate of 10～15 DEG C/min, it is incubated at least 2h, then constant temperature casting under the conditions of 800～850 DEG C；
Step 3, cast after be reduced to 400～450 DEG C with the cooling rate of 5～10 DEG C/min, be then cooled fast to less than 200 DEG C；This cooling rate quickly cooled down is more than 100 DEG C/min；
Step 4, puts into after cooling and is incubated 1～2h in the stove fire of 800～850 DEG C, makes finished product after eventually passing quenching, tempering.
Desulfurization in the present embodiment, deoxidation, dephosphorization treatment, and quenching, temper operation be prior art, therefore repeat no more.
The matrix material forming the material of above-mentioned composition ratio carries out performance test, and test result is as shown in table 2.
Table 2
Test data by above-mentioned table 2, data in present example 1-example 3 show: the present invention not only can guarantee that have higher yield strength, impact flexibility and hardness simultaneously, but also there is certain resistance to acids and bases, and the cost of the present invention is cheaper, effect is the most notable.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.

Claims (4)

1. the high intensity super abrasive steel for oil bit, it is characterised in that be made up of following composition according to mass percent: C 0.8%～1.0%, Cr 0.3%～0.4%, Mn 0.3%～0.4%, Si 0.1%～0.3%, Al 0.05%～0.1%, B 0.05%～0.1%, Cu 0.05%～0.1%, V 0.05%～0.1%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
A kind of high intensity super abrasive steel for oil bit the most according to claim 1, it is characterised in that be made up of following composition according to mass percent: C 0.8%～0.9%, Cr 0.3%～0.4%, Mn 0.3%～0.4%, Si 0.1%～0.2%, Al 0.05%～0.1%, B 0.05%～0.1%, Cu 0.05%～0.1%, V 0.05%～0.1%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
A kind of high intensity super abrasive steel for oil bit the most according to claim 1, it is characterised in that be made up of following composition according to mass percent: C 0.9%, Cr 0.3%, Mn 0.4%, Si 0.2%, Al 0.05%, B 0.1%, Cu 0.05%, V 0.08%, S≤0.03%, P≤0.03%, trace element sum≤1%, surplus is Fe.
A kind of high intensity super abrasive steel for oil bit the most according to claim 1, it is characterised in that the mass percent sum of described C, Cr, Mn and Si is less than 1.9%, the mass percent sum of described Mn, Al, B, Cu and V is more than 0.65%.
CN201610513445.9A 2016-07-04 2016-07-04 High-strength abrasion-resistant steel for petroleum drill bit Pending CN105925910A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610513445.9A CN105925910A (en) 2016-07-04 2016-07-04 High-strength abrasion-resistant steel for petroleum drill bit
PCT/CN2016/097430 WO2018006485A1 (en) 2016-07-04 2016-08-30 High strength wear-resistant steel for oil drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610513445.9A CN105925910A (en) 2016-07-04 2016-07-04 High-strength abrasion-resistant steel for petroleum drill bit

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WO (1) WO2018006485A1 (en)

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CN102899573A (en) * 2011-07-25 2013-01-30 宝山钢铁股份有限公司 Steel and manufacturing method for high strength wear resistance casing
CN104789882A (en) * 2015-03-16 2015-07-22 天津欧派卡石油管材有限公司 Production method of petroleum casing pipe

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Application publication date: 20160907