CN104097035A - Multi-pass thickening molding integrated heavy weight drill pipe manufacturing method - Google Patents
Multi-pass thickening molding integrated heavy weight drill pipe manufacturing method Download PDFInfo
- Publication number
- CN104097035A CN104097035A CN201410313684.0A CN201410313684A CN104097035A CN 104097035 A CN104097035 A CN 104097035A CN 201410313684 A CN201410313684 A CN 201410313684A CN 104097035 A CN104097035 A CN 104097035A
- Authority
- CN
- China
- Prior art keywords
- seamless steel
- drill pipe
- heavy weight
- steel pipe
- weight drill
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Abstract
The invention relates to the technical field of petroleum drill pipe processing and manufacturing, in particular to a multi-pass thickening molding integrated heavy weight drill pipe manufacturing method. The method specifically comprises the following steps of (1) selecting a large-wall thickness seamless steel tube containing high-molybdenum and high-chromium alloy as a raw material; (2) adopting an intermediate frequency furnace to carry out intermediate frequency heating on the end part of the seamless steel tube, wherein the heating temperature is 1190-1210 DEG C. According to the method, firstly, the seamless steel tube containing the high-molybdenum and high-chromium alloy is adopted as a tube body; secondly, the seamless steel tube containing the high-molybdenum and high-chromium alloy is subjected to upsetting thickening molding by adopting an integrated upsetting heavy weight drill pipe technology; finally, the subsequent processing is carried out to enable a finished product to reach the standards of 980 Mpa yield strength, 1105 Mpa tensile strength, 16% ductility, and (-20) 75 J ballistic work. The production technology is capable of solving the problems that in the traditional technology production process, too much raw materials are used, the cost of the whole thermal processing is overhigh, the yield of central deep hole drilling is over low, and the like.
Description
Technical field
The present invention relates to oil drill rocker processing and manufacturing technical field, be specifically related to the manufacture method of multi-pass thickening molded integral heavy weight drill pipe.
Background technology
In the process of oil exploitation, main tool with the most use is oil drill rocker.Its yield strength, drilling depth, service life, processing cost and recycling number of times are the problems that production and processing oil drill rocker producer and oil exploitation user consider, are concerned about always.
To the method for heavy weight drill pipe production and processing, be at present two kinds of welded type and bar machining types.Welded type processing is to increase the weight of body and to increase the weight of joint the taking method of friction welding to become heavy weight drill pipe; Bar machining type be on bar body with punching, bore and to dig the heavy weight drill pipe processing with the method such as cutting thread.The former is current more common processing method, exists the shortcoming that drill pipe body intensity is lower, and the latter is because processing cost is too high, and difficulty is limiting and promoting greatly.
In prior art, integrally-weighted drilling rod is produced and is adopted AISI4145H steel alloy, by precise forging machine solid forging moulding, through the bulk heat treatmet of well formula heat-treatment furnace, carries out center deep hole and drills; But in above-mentioned art production process, easily occur raw material consumption too much, the high cost of bulk heat treatmet and the center deep hole situations such as qualification rate is too low while drilling.
Summary of the invention
The object of this invention is to provide a kind of employing containing the seamless steel pipe of high molybdenum, high-chromium alloy, carry out end multi-pass thickening moulding, thus can solve in prior art processes production process, easily occur raw material consumption too much, the manufacture method of the multi-pass thickening molded integral heavy weight drill pipe of the high cost of bulk heat treatmet and the center deep hole situations such as qualification rate is too low while drilling.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: the manufacture method of multi-pass thickening molded integral heavy weight drill pipe, and concrete steps are as follows:
(1), selecting the large wall thickness seamless steel pipe containing high molybdenum, high-chromium alloy is raw material;
(2), adopt intermediate frequency furnace to carry out heating in medium frequency to the end of described seamless steel pipe, its heating-up temperature is 1190～1210 ℃;
(3), first forming core rod is put into the inside of described seamless steel pipe, and adopt thickening model to be clamped in the outside of described seamless steel pipe, then above-mentioned seamless steel pipe is pushed in extrusion die, start jumping-up extruder, make the whole forging and stamping of seamless steel pipe to the finished product that meets above-mentioned thickening model shape, wherein, the clamping force of jumping-up extruder is 3.9～7.8MN, upset pressure is 425MPa, and extrusion speed is 0.36m/s; Finally reverse starting jumping-up extruder again, makes the smooth demoulding of heavy weight drill pipe of moulding;
(4) heavy weight drill pipe, after adopting chamber type natural gas hardening and tempering furnace to above-mentioned jumping-up is heat-treated, and its hardening heat is 885～895 ℃, and the heat time is 35 minutes; Central water spray pressure is 0.5MPa, and spray time is 85～95s; Temperature is 595～605 ℃, and temperature retention time is 45 minutes;
(5), follow-up above-mentioned heavy weight drill pipe is carried out to turning moulding, and screw thread processing, product inspection are carried out in its end.
The present invention has following beneficial effect: the manufacture method of multi-pass thickening molded integral heavy weight drill pipe of the present invention, first adopt the seamless steel pipe that contains high molybdenum, high-chromium alloy as body, next adopts monoblock type jumping-up heavy weight drill pipe technique to carry out jumping-up thickening moulding to the seamless steel pipe containing high molybdenum, high-chromium alloy, finally carry out subsequent treatment, make its finished product reach the standard of yield strength 980MPa, tensile strength 1105MPa, percentage elongation 16%, ballistic work (20) 75J; And this production technology can solve in conventional art process production process, easily occur raw material consumption too much, the high cost of bulk heat treatmet and the center deep hole situations such as qualification rate is too low while drilling.In addition, the manufacture method of this integrally-weighted drilling rod is simpler, more economical than traditional heavy weight drill pipe technique, mass more, and the grade of steel after processing reaches S level, makes the joint joint and pipe mechanical strength of integrally-weighted drilling rod product all reach ideal effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of thickening model in the present invention.
Fig. 2 is the structural representation of forming core rod in the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Embodiment mono-: as shown in Figure 1 and Figure 2, the manufacture method of multi-pass thickening molded integral heavy weight drill pipe, concrete steps are as follows:
(1), selecting the large wall thickness seamless steel pipe containing high molybdenum, high-chromium alloy is raw material; Be convenient to like this guarantee the quenching degree of material;
(2), adopt intermediate frequency furnace to carry out heating in medium frequency to the end of described seamless steel pipe, its heating-up temperature is 1190 ℃; Be convenient to so follow-up jumping-up operation;
(3), first forming core rod 1 is put into the inside of described seamless steel pipe, and adopt thickening model 2 to be clamped in the outside of described seamless steel pipe, then above-mentioned seamless steel pipe is pushed in extrusion die, start jumping-up extruder, make the whole forging and stamping of seamless steel pipe to the finished product that meets above-mentioned thickening model 2 shapes, wherein, the clamping force of jumping-up extruder is 3.9MN, upset pressure is 425MPa, and extrusion speed is 0.36m/s; Finally reverse starting jumping-up extruder again, makes the smooth demoulding of heavy weight drill pipe of moulding; In addition, in this operation, the upsetting length of its seamless steel pipe is longer than traditional upsetting length;
(4) heavy weight drill pipe, after adopting chamber type natural gas hardening and tempering furnace to above-mentioned jumping-up is heat-treated, and its hardening heat is 885 ℃, and the heat time is 35 minutes; Central water spray pressure is 0.5MPa, and spray time is 85s; Temperature is 595 ℃, and temperature retention time is 45 minutes; Make like this joint and pipe mechanical strength of integrally-weighted drilling rod product all reach ideal effect;
(5), follow-up above-mentioned heavy weight drill pipe is carried out to turning moulding, and screw thread processing, the inspection of semifinished product are carried out in its end.
Embodiment bis-: as shown in Figure 1 and Figure 2, the manufacture method of multi-pass thickening molded integral heavy weight drill pipe, concrete steps are as follows:
(1), selecting the large wall thickness seamless steel pipe containing high molybdenum, high-chromium alloy is raw material;
(2), adopt intermediate frequency furnace to carry out heating in medium frequency to the end of described seamless steel pipe, its heating-up temperature is 1205 ℃;
(3), first forming core rod 1 is put into the inside of described seamless steel pipe, and adopt thickening model 2 to be clamped in the outside of described seamless steel pipe, then above-mentioned seamless steel pipe is pushed in extrusion die, start jumping-up extruder, make the whole forging and stamping of seamless steel pipe to the finished product that meets above-mentioned thickening model 2 shapes, wherein, the clamping force of jumping-up extruder is 5.6MN, upset pressure is 425MPa, and extrusion speed is 0.36m/s; Finally reverse starting jumping-up extruder again, makes the smooth demoulding of heavy weight drill pipe of moulding;
(4) heavy weight drill pipe, after adopting chamber type natural gas hardening and tempering furnace to above-mentioned jumping-up is heat-treated, and its hardening heat is 890 ℃, and the heat time is 35 minutes; Central water spray pressure is 0.5MPa, and spray time is 90s; Temperature is 600 ℃, and temperature retention time is 45 minutes;
(5), follow-up above-mentioned heavy weight drill pipe is carried out to turning moulding, and screw thread processing, the inspection of semifinished product are carried out in its end.In the present embodiment, other is with all identical with embodiment mono-.
Embodiment tri-: as shown in Figure 1 and Figure 2, the manufacture method of multi-pass thickening molded integral heavy weight drill pipe, concrete steps are as follows:
(1), selecting the large wall thickness seamless steel pipe containing high molybdenum, high-chromium alloy is raw material;
(2), adopt intermediate frequency furnace to carry out heating in medium frequency to the end of described seamless steel pipe, its heating-up temperature is 1210 ℃;
(3), first forming core rod 1 is put into the inside of described seamless steel pipe, and adopt thickening model 2 to be clamped in the outside of described seamless steel pipe, then above-mentioned seamless steel pipe is pushed in extrusion die, start jumping-up extruder, make the whole forging and stamping of seamless steel pipe to the finished product that meets above-mentioned thickening model 2 shapes, wherein, the clamping force of jumping-up extruder is 7.8MN, upset pressure is 425MPa, and extrusion speed is 0.36m/s; Finally reverse starting jumping-up extruder again, makes the smooth demoulding of heavy weight drill pipe of moulding;
(4) heavy weight drill pipe, after adopting chamber type natural gas hardening and tempering furnace to above-mentioned jumping-up is heat-treated, and its hardening heat is 895 ℃, and the heat time is 35 minutes; Central water spray pressure is 0.5MPa, and spray time is 95s; Temperature is 605 ℃, and temperature retention time is 45 minutes;
(5), follow-up above-mentioned heavy weight drill pipe is carried out to turning moulding, and screw thread processing, the inspection of semifinished product are carried out in its end.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (1)
1. the manufacture method of multi-pass thickening molded integral heavy weight drill pipe, is characterized in that, concrete steps are as follows:
(1), selecting the large wall thickness seamless steel pipe containing high molybdenum, high-chromium alloy is raw material;
(2), adopt intermediate frequency furnace to carry out heating in medium frequency to the end of described seamless steel pipe, its heating-up temperature is 1190～1210 ℃;
(3), first forming core rod (1) is put into the inside of described seamless steel pipe, and adopt thickening model (2) to be clamped in the outside of described seamless steel pipe, then above-mentioned seamless steel pipe is pushed in extrusion die, start jumping-up extruder, make the whole forging and stamping of seamless steel pipe to the finished product that meets above-mentioned thickening model (2) shape, wherein, the clamping force of jumping-up extruder is 3.9～7.8MN, upset pressure is 425MPa, and extrusion speed is 0.36m/s; Finally reverse starting jumping-up extruder again, makes the smooth demoulding of heavy weight drill pipe of moulding;
(4) heavy weight drill pipe, after adopting chamber type natural gas hardening and tempering furnace to above-mentioned jumping-up is heat-treated, and its hardening heat is 885～895 ℃, and the heat time is 35 minutes; Central water spray pressure is 0.5MPa, and spray time is 85～95s; Temperature is 595～605 ℃, and temperature retention time is 45 minutes;
(5), follow-up above-mentioned heavy weight drill pipe is carried out to turning moulding, and screw thread processing, the inspection of semifinished product are carried out in its end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313684.0A CN104097035A (en) | 2014-07-03 | 2014-07-03 | Multi-pass thickening molding integrated heavy weight drill pipe manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313684.0A CN104097035A (en) | 2014-07-03 | 2014-07-03 | Multi-pass thickening molding integrated heavy weight drill pipe manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104097035A true CN104097035A (en) | 2014-10-15 |
Family
ID=51665785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410313684.0A Pending CN104097035A (en) | 2014-07-03 | 2014-07-03 | Multi-pass thickening molding integrated heavy weight drill pipe manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104097035A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511645A (en) * | 2017-09-29 | 2017-12-26 | 宝鸡市永盛泰钛业有限公司 | A kind of oil drill rocker machining manufacture |
| CN108817293A (en) * | 2018-08-09 | 2018-11-16 | 宜昌市五环钻机具有限责任公司 | A kind of forging tooling and technique that thin-wall tube both ends are upset |
| CN109396749A (en) * | 2017-08-16 | 2019-03-01 | 苏州扬坤电子有限公司 | A kind of encapsulated component upsetting squeeze technique of dust catcher drive shaft |
| CN113560828A (en) * | 2021-08-19 | 2021-10-29 | 上海海隆石油管材研究所 | Preparation method of titanium alloy drill rod joint |
| CN114654176A (en) * | 2022-04-21 | 2022-06-24 | 贵州航天精工制造有限公司 | Thin-wall sleeve thread machining method |
| CN114985655A (en) * | 2022-06-15 | 2022-09-02 | 中国重型机械研究院股份公司 | Short-flow thickening method for pipe end of steel pipe by adopting two-time upsetting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100027A (en) * | 2006-07-07 | 2008-01-09 | 唐建军 | Petroleum drilling rod joint extrusion forming technology method |
| CN101259580A (en) * | 2008-04-29 | 2008-09-10 | 江苏常宝钢管股份有限公司 | Processing technique for integral drill rod |
| CN101614112A (en) * | 2009-07-30 | 2009-12-30 | 南通文凤化纤有限公司 | Integrally-weighted drilling rod and production and processing method thereof |
| CN102049458A (en) * | 2009-10-30 | 2011-05-11 | 郑州市地幔科技有限公司 | Extrusion molding method and equipment for integrated heavy drill rod and square drill rod |
| CN103143669A (en) * | 2012-12-28 | 2013-06-12 | 南通永大管业股份有限公司 | External upsetting method for oil well pipe and oil well pipe manufactured by using external upsetting method |
| CN103302461A (en) * | 2013-06-25 | 2013-09-18 | 陈靖忠 | Manufacturing method and manufacturing equipment of integral petroleum heavy weight drill pipe |
| CN103452492A (en) * | 2013-09-24 | 2013-12-18 | 上海海隆石油管材研究所 | Forming method of drill pipe high station structure for rapid raising and dropping drill and drill pipe |
-
2014
- 2014-07-03 CN CN201410313684.0A patent/CN104097035A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100027A (en) * | 2006-07-07 | 2008-01-09 | 唐建军 | Petroleum drilling rod joint extrusion forming technology method |
| CN101259580A (en) * | 2008-04-29 | 2008-09-10 | 江苏常宝钢管股份有限公司 | Processing technique for integral drill rod |
| CN101614112A (en) * | 2009-07-30 | 2009-12-30 | 南通文凤化纤有限公司 | Integrally-weighted drilling rod and production and processing method thereof |
| CN102049458A (en) * | 2009-10-30 | 2011-05-11 | 郑州市地幔科技有限公司 | Extrusion molding method and equipment for integrated heavy drill rod and square drill rod |
| CN103143669A (en) * | 2012-12-28 | 2013-06-12 | 南通永大管业股份有限公司 | External upsetting method for oil well pipe and oil well pipe manufactured by using external upsetting method |
| CN103302461A (en) * | 2013-06-25 | 2013-09-18 | 陈靖忠 | Manufacturing method and manufacturing equipment of integral petroleum heavy weight drill pipe |
| CN103452492A (en) * | 2013-09-24 | 2013-12-18 | 上海海隆石油管材研究所 | Forming method of drill pipe high station structure for rapid raising and dropping drill and drill pipe |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396749A (en) * | 2017-08-16 | 2019-03-01 | 苏州扬坤电子有限公司 | A kind of encapsulated component upsetting squeeze technique of dust catcher drive shaft |
| CN109396749B (en) * | 2017-08-16 | 2021-04-27 | 苏州扬坤电子有限公司 | Upsetting-extruding process for rubber-coated assembly of driving shaft of dust collector |
| CN107511645A (en) * | 2017-09-29 | 2017-12-26 | 宝鸡市永盛泰钛业有限公司 | A kind of oil drill rocker machining manufacture |
| CN108817293A (en) * | 2018-08-09 | 2018-11-16 | 宜昌市五环钻机具有限责任公司 | A kind of forging tooling and technique that thin-wall tube both ends are upset |
| CN113560828A (en) * | 2021-08-19 | 2021-10-29 | 上海海隆石油管材研究所 | Preparation method of titanium alloy drill rod joint |
| CN114654176A (en) * | 2022-04-21 | 2022-06-24 | 贵州航天精工制造有限公司 | Thin-wall sleeve thread machining method |
| CN114654176B (en) * | 2022-04-21 | 2024-03-26 | 贵州航天精工制造有限公司 | Thin-wall sleeve thread machining method |
| CN114985655A (en) * | 2022-06-15 | 2022-09-02 | 中国重型机械研究院股份公司 | Short-flow thickening method for pipe end of steel pipe by adopting two-time upsetting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104097035A (en) | Multi-pass thickening molding integrated heavy weight drill pipe manufacturing method | |
| CN104480477B (en) | A kind of anti-corrosion and high strength hex bolts production technology | |
| WO2020253550A1 (en) | Novel hollow shaft manufacturing method | |
| CN101462225B (en) | Technique for processing honing tube | |
| CN103962802B (en) | Warm extrusion forming process of internal thread joint of petroleum drill rod | |
| CN104589002A (en) | Manufacturing technology of hollow outer gear of electric forklift driving flange | |
| CN107443019B (en) | The cold duplex forging manufacturing process of temperature of deep hole input shaft | |
| CN102350474B (en) | Control method for hot forging structure property of Mn18Cr18N steel retaining ring | |
| CN101614112A (en) | Integrally-weighted drilling rod and production and processing method thereof | |
| CN107138553B (en) | A kind of seamless pipe manufacturing method of potassium steel | |
| CN108531814A (en) | A kind of preparation method of heavy caliber X80 straight-line joint submerged arc welding tubes | |
| CN103089781A (en) | Method for machining high-strength double end bolt | |
| CN101942550B (en) | Heat treatment process for hollow drill collar | |
| CN103962801A (en) | Forming process of petroleum drill rod joint | |
| CN105328095A (en) | Low-carbon high-alloy steel forging technology | |
| CN104209720A (en) | Manufacturing method of heat-resistant rock drill bit | |
| CN101961730A (en) | Method for making steel tube | |
| CN109663875B (en) | Forging process for die pressing groove of groove ring | |
| CN203695839U (en) | Combined closed-type forming die for method of forging tubular parts of seamless tube | |
| CN106077383A (en) | A kind of mould Forging Technology of dumbbell class cheese forging | |
| CN103962486A (en) | Whole forging process method of super-high pressure valve body | |
| CN108326215B (en) | Light and thin combined tooth closed forging process | |
| CN106636923A (en) | Drill rod and preparation method thereof | |
| CN204035444U (en) | The mould of large-scale interior T-shaped ring-type forge piece blank reheating forging | |
| CN104551583A (en) | Strain-induced method semi-solid-state manufacturing process for radial forging of well drilling roller bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |