CN103775002A - Large-specification drill pipe and manufacturing method thereof - Google Patents
Large-specification drill pipe and manufacturing method thereof Download PDFInfo
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- CN103775002A CN103775002A CN201210405431.7A CN201210405431A CN103775002A CN 103775002 A CN103775002 A CN 103775002A CN 201210405431 A CN201210405431 A CN 201210405431A CN 103775002 A CN103775002 A CN 103775002A
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- drilling rod
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- specification drilling
- male connection
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 73
- 230000008719 thickening Effects 0.000 claims abstract description 20
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 230000000171 quenching effect Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005496 tempering Methods 0.000 abstract 2
- 238000007669 thermal treatment Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000003208 petroleum Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000003607 modifier Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention discloses a large-specification drill pipe. The large-specification drill pipe comprises a pipe body, both ends of the pipe body is respectively provided with a thickened end with the same width, and the outer diameter of the pipe body is larger than 127 mm; an internal thread joint and an external thread joint are fixedly connected with the thickened ends respectively. The outer diameter of the pipe body is POD, the inner diameter of the pipe body is PID, the outer diameter of the internal thread joint and the external thread joint is TJOD, and the inner diameter of the internal thread joint and the external thread joint is TJID; the large-specification drill joint meets: 7.7 >= (PID+TJID)/(TJOD-POD) >= 6.7. The manufacturing method of the large-specification drill pipe comprises thickening both ends of the pipe body; then performing overall-length quenching and tempering thermal treatment on the pipe body; connecting the thickened ends of the quenched and tempered pipe body with the internal thread joint and the external thread joint through welding, which are quenched and tempered; lastly, performing quenching and tempering thermal treatment on welding joints. The large-specification drill pipe is relatively large in the pipe diameter, and the yield strength and the antitorque strength of the joints are relatively high, so that the large-specification drill pipe is applicable to drilling construction of ultra-deep sour wells.
Description
Technical field
The present invention relates to a kind of soil layer or Rock penetrating instrument and manufacture method thereof, relate in particular to a kind of drilling rod and manufacture method thereof.
Background technology
Drilling rod for oil-gas drilling is by API(American Petroleum Institute (API), American Petroleum Institute) standard production manufacture.According to the standard of API SPEC 5DP, the external diameter of drilling rod is from 60.32mm to 168.28mm, and wherein external diameter is 127mm, and the drilling rod of 139.7mm and 168.28mm is all called large specification drilling rod.Large specification drilling rod is mainly used in drill string top, need to bear larger stretching and torsional load, and its technical requirements is very high.
Along with the exploitation of World's Oil and Gas Resources and the development of petroleum industry, the difficulty of oil-gas mining strengthens gradually, and oil and gas development has turned to the exploitation of unconventional resource at present, so cause the increasingly severe of oil drill rocker condition of work.The standard drilling rod of API defined has been difficult to meet day by day harsh drillng operation requirement.In order to tackle some harsh Special Drilling Operation requirements, various countries are all devoted to develop the drilling rod product of the non-API specification of large specification.For example, bury the darker H that contains
2the petroleum resources of S composition is the important component part of unconventional petroleum resources.For the probing of ultradeep well, should adopt 135 steel grade drill pipes of API regulation, but because 135 steel grade drill pipe intensity are higher, to H
2s is very responsive, easily produces sulfide-stress cracking, thereby causes drilling rod generation fracture accident.Therefore,, for super dark sour well, can adopt 105 grade of steels that intensity is lower to drill.For the large specification drilling rod of API standard, the 127mm of 105 grade of steels and 139.7mm drill pipe body intensity are low, cannot meet the requirement of strength design of drill string; The 168.28mm drilling rod of 105 grade of steels needs larger hook load, must change drilling equipment, significantly increases cost; Therefore, the large specification drilling rod of 105 grade of steels of API all can not meet the probing demand of super dark sour well.
Publication number is US6244631B1, and open day is June 12 calendar year 2001, and the american documentation literature that name is called " efficient drilling rod " discloses the non-API drilling rod of a kind of large specification product.This drilling rod is mainly extended reach well Drilling Design, has body external diameter larger, the feature that joint external diameter is less and joint internal diameter is larger, and its body external diameter is 149.23mm, and joint external diameter is 177.8mm, and internal diameter is 108mm.Compared with 127mm and 139.7mm drilling rod, 149.23mm drilling rod hydraulic characteristic(s) is better.Compared with 168.28mm drilling rod, 149.23mm drilling rod need not be sacrificed rig space, and hook load that also need not be larger, need not change drilling equipment.Compare, 149.23mm is relatively suitable for the drilling operation of extended reach well.But the drilling rod described in this patent is too pursued the compactedness design of the little external diameter of joint, large diameter, so in the situation that joint yield strength is lower, its joint torsional strength is too low, is also not suitable for the exploration of super dark sour well.
Summary of the invention
The object of the present invention is to provide a kind of large specification drilling rod and manufacture method thereof, the body external diameter of this large specification drilling rod is larger, joint inside/outside diameter size is moderate, can bear larger stretching and torsional load, can meet the working condition requirement of 105 steel grade drill pipe probing sulfur-bearing ultradeep wells.
In order to realize object of the present invention, the invention provides a kind of large specification drilling rod, it comprises: a body, the two ends of described body have respectively the upset end that a thickness is identical, and the external diameter of body is greater than 127mm; A female adapter is fixedly connected with each upset end respectively with a male connection; The external diameter of described body is P
oD, internal diameter is P
iD, the external diameter of female adapter and male connection is TJ
oD, internal diameter is TJ
iD;
And this large specification drilling rod meets:
Large specification drilling rod of the present invention is selected the drilling rod of 105 grade of steels.The drilling rod of 105 grade of steels of API comprises three kinds of specification 127mm, 139.7mm and 168.28mm, but the drilling rod of these three kinds of specifications all can not be applied the probing exploitation of sulfur-bearing ultradeep well.In order to obtain the drilling rod of the working condition requirement that meets sulfur-bearing ultradeep well, the two ends of the drilling rod to 105 grade of steels thicken processing, and by the joint that above-mentioned formula is determined and drilling rod matches, and joint is connected with the upset end of drilling rod, larger to form body external diameter, the moderate drilling rod of body two end joint inside/outside diameter size.Therefore, this drill pipe body has some strength, and tool joint yield strength and torsional strength higher, can adapt to containing H
2in the oil gas field of S, explore exploitation.
Once enter the external diameter P of the body of described large specification drilling rod
oDfor 152.4mm.
Further, the external diameter TJ of the female adapter of described large specification drilling rod and male connection
oDfor 184.2mm.
Further, the internal diameter TJ of the female adapter of described large specification drilling rod and male connection
iDfor 101.6mm.
Correspondingly, the present invention also provides a kind of manufacture method of large specification drilling rod, and concrete steps are: first body two ends are thickeied to processing; Then body is carried out to the modified heat treatment of total length; Then the body upset end after modified heat treatment is welded to connect respectively with through modified heat treated female adapter and male connection; Finally carry out the modified heat treatment of weld seam.
Further, when body two ends are thickeied to processing, process for upsetting is three heating, three thickenings, and each thickening is internal-external thickening, and the heated length heating is for the first time at least 550mm.
Further, when body two ends are thickeied to processing, process for upsetting is four heating, four thickenings, and each thickening is internal-external thickening, and the heated length heating is for the first time at least 550mm.
Further, the modified heat treatment mode of body is shrend, control body interlude and upset end has different injection flow rates so that the interlude of body and upset end have identical cooling velocity.
Further, the modified heat treatment mode of female adapter and male connection is oil quenching.
Further, the modified heat treatment mode of weld seam is: commissure external surface hydrojet, inner surface is jet.
In technical scheme of the present invention, first drill rod pipe end is thickeied to processing, make the body of thickened drilling rod, process for upsetting can be 3-4 heating, 3-4 thickening; Then the body after thickening is carried out to total length modifier treatment, modified heat-treating methods can adopt shrend, by controlling the interlude of body and upset end has different injection flow rates so that the interlude of body and upset end have identical cooling velocity, obtain identical mechanical property so that the interlude of body and upset end are final; Then body upset end is welded to connect with female adapter and male connection respectively, wherein modifier treatment is also passed through in female adapter and male connection, and modified heat-treating methods can adopt oil quenching; Finally postwelding weld seam is carried out to modified heat treatment, modified heat treatment can adopt commissure external surface hydrojet, and inner surface is jet.
Compared to prior art, large specification drilling rod of the present invention, its body caliber is larger, and yield strength and the torsional strength of joint are higher, can be owing to containing H
2s and produce sulfide-stress cracking, without change drilling equipment in the situation that, just goes for the drilling operation of super dark sour well, has not only improved the safety of probing, has also reduced the cost of construction.Large specification drilling rod manufacture method of the present invention, adopts thickening processing and modifier treatment to obtain the API105 steel grade drill pipe of the working condition requirement that meets probing sulfur-bearing ultradeep well for drilling rod, and step is convenient, simple.
Accompanying drawing explanation
Fig. 1 has shown the partial structurtes of large specification drilling rod of the present invention.
Fig. 2 has shown the partial structurtes of large specification drilling rod another part of the present invention.
The specific embodiment
Be further illustrated for technical solutions according to the invention below in conjunction with specific embodiment and Figure of description.
Fig. 1 has shown that drilling rod is connected with the structure of female adapter one end.Fig. 2 has shown that drilling rod is connected with the structure of male connection one end.As depicted in figs. 1 and 2, drilling rod comprises body 1, and the two ends of body have respectively the upset end that thickness is identical, and female adapter 2 and male connection 3 achieve a fixed connection by welding with each upset end respectively, thereby has formed weld seam 4.The footpath of body 1 is P
oD, internal diameter is P
iD, the external diameter of female adapter 2 and male connection 3 is TJ
oD, internal diameter is TJ
iD.
Embodiment 1-3
Manufacture respectively the large specification drilling rod of different size according to following step:
1) two ends of body are thickeied to processing, process for upsetting is three heating, three thickenings or four heating, four thickenings, and each thickening is internal-external thickening, and the heated length of heating is at least 550mm for the first time;
2) body is carried out to total length and carries out shrend, control body interlude and upset end has different injection flow rates so that the interlude of body and upset end have identical cooling velocity; Female adapter and male connection are carried out to oil quenching;
3) the body upset end after shrend is connected by friction welding with female adapter and male connection after oil quenching respectively, becomes a drilling rod entirety, this drilling rod meets:
the external diameter of its middle tube body is P
oD, internal diameter is P
iD, the external diameter of female adapter and male connection is TJ
oD, internal diameter is TJ
iD;
4) to welded seam place external surface hydrojet, inner surface is jet.
Table 1 has shown concrete technological parameter in this case embodiment 1-3.
Table 1
Table 2
Note: the constant in table 2
Be noted that above enumerate only for specific embodiments of the invention, obviously the invention is not restricted to above-described embodiment, have many similar variations thereupon.If all distortion that those skilled in the art directly derives or associates from content disclosed by the invention, all should belong to protection scope of the present invention.
Claims (10)
1. a large specification drilling rod, it comprises: a body, the two ends of described body have respectively the upset end that a thickness is identical, and the external diameter of body is greater than 127mm; A female adapter is fixedly connected with each upset end respectively with a male connection; The external diameter of described body is P
oD, internal diameter is P
iD, the external diameter of female adapter and male connection is TJ
oD, internal diameter is TJ
iD; It is characterized in that, this large specification drilling rod meets:
2. large specification drilling rod as claimed in claim 1, is characterized in that: the footpath P of the body of described large specification drilling rod
oDfor 152.4mm.
3. large specification drilling rod as claimed in claim 2, is characterized in that: the external diameter TJ of the female adapter of described large specification drilling rod and male connection
oDfor 184.2mm.
4. large specification drilling rod as claimed in claim 3, is characterized in that: the internal diameter TJ of the female adapter of described large specification drilling rod and male connection
iDfor 101.6mm.
5. the manufacture method of the large specification drilling rod as described in any one in claim 1-4, is characterized in that: body two ends are thickeied to processing; Then body is carried out to the modified heat treatment of total length; Body upset end after modified heat treatment is welded to connect respectively with through modified heat treated female adapter and male connection; Then carry out the modified heat treatment of weld seam.
6. the manufacture method of large specification drilling rod as claimed in claim 5, it is characterized in that: when body two ends are thickeied to processing, process for upsetting is three heating, three thickenings, and each thickening is internal-external thickening, and the heated length of heating is at least 550mm for the first time.
7. the manufacture method of large specification drilling rod as claimed in claim 5, it is characterized in that: when body two ends are thickeied to processing, process for upsetting is four heating, four thickenings, and each thickening is internal-external thickening, and the heated length of heating is at least 550mm for the first time.
8. the manufacture method of the large specification drilling rod as described in claim 6 or 7, it is characterized in that: the modified heat treatment mode of body is shrend, control body interlude and upset end has different injection flow rates so that the interlude of body and upset end have identical cooling velocity.
9. the manufacture method of large specification drilling rod as claimed in claim 8, is characterized in that: the modified heat treatment mode of female adapter and male connection is oil quenching.
10. the manufacture method of large specification drilling rod as claimed in claim 9, is characterized in that: the modified heat treatment mode of weld seam is: commissure external surface hydrojet, inner surface is jet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405431.7A CN103775002A (en) | 2012-10-22 | 2012-10-22 | Large-specification drill pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405431.7A CN103775002A (en) | 2012-10-22 | 2012-10-22 | Large-specification drill pipe and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103775002A true CN103775002A (en) | 2014-05-07 |
Family
ID=50567698
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210405431.7A Pending CN103775002A (en) | 2012-10-22 | 2012-10-22 | Large-specification drill pipe and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464059A (en) * | 2021-04-28 | 2021-10-01 | 天津钢管制造有限公司 | Double-layer sleeve design method |
| CN114893132A (en) * | 2022-07-15 | 2022-08-12 | 陕西太合智能钻探有限公司 | Efficient composite through cable drill rod |
| CN117127922A (en) * | 2023-10-13 | 2023-11-28 | 澳普洛钻探工具(无锡)有限公司 | A V-WALL material drill pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994003700A1 (en) * | 1991-06-10 | 1994-02-17 | Prideco, Inc. | Lightweight drill pipe |
| CN1837395A (en) * | 2006-04-04 | 2006-09-27 | 张毅 | Anti-sulfur drill rod and method for manufacturing the same |
| CN1887473A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Making process of drill pipe with internally and externally thickened end |
| CN101117683A (en) * | 2006-07-31 | 2008-02-06 | 宝山钢铁股份有限公司 | High-performance hydrogen sulfide corrosion resistant oil drill rocker and its heat treatment process |
| CN102373887A (en) * | 2010-08-23 | 2012-03-14 | 宝山钢铁股份有限公司 | Drill rod and manufacture method thereof |
-
2012
- 2012-10-22 CN CN201210405431.7A patent/CN103775002A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994003700A1 (en) * | 1991-06-10 | 1994-02-17 | Prideco, Inc. | Lightweight drill pipe |
| CN1887473A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Making process of drill pipe with internally and externally thickened end |
| CN1837395A (en) * | 2006-04-04 | 2006-09-27 | 张毅 | Anti-sulfur drill rod and method for manufacturing the same |
| CN101117683A (en) * | 2006-07-31 | 2008-02-06 | 宝山钢铁股份有限公司 | High-performance hydrogen sulfide corrosion resistant oil drill rocker and its heat treatment process |
| CN102373887A (en) * | 2010-08-23 | 2012-03-14 | 宝山钢铁股份有限公司 | Drill rod and manufacture method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464059A (en) * | 2021-04-28 | 2021-10-01 | 天津钢管制造有限公司 | Double-layer sleeve design method |
| CN113464059B (en) * | 2021-04-28 | 2022-08-12 | 天津钢管制造有限公司 | Double-layer sleeve design method |
| CN114893132A (en) * | 2022-07-15 | 2022-08-12 | 陕西太合智能钻探有限公司 | Efficient composite through cable drill rod |
| CN117127922A (en) * | 2023-10-13 | 2023-11-28 | 澳普洛钻探工具(无锡)有限公司 | A V-WALL material drill pipe |
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Application publication date: 20140507 |
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