CN106014272A - High-hardness drill stem with wear-resistant belts - Google Patents
High-hardness drill stem with wear-resistant belts Download PDFInfo
- Publication number
- CN106014272A CN106014272A CN201610549049.1A CN201610549049A CN106014272A CN 106014272 A CN106014272 A CN 106014272A CN 201610549049 A CN201610549049 A CN 201610549049A CN 106014272 A CN106014272 A CN 106014272A
- Authority
- CN
- China
- Prior art keywords
- drill stem
- drilling rod
- rod body
- thread
- wear
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 60
- 238000005728 strengthening Methods 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 239000011324 bead Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009993 protective function Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/22—Rods or pipes with helical structure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a high-hardness drill stem with wear-resistant belts. By adopting the CY120N high-hardness drill stem with the wear-resistant belts, the overall sulfur resistance of the drill stem can be further improved; meanwhile, an auxiliary shoulder is additionally arranged at a meshed position of a pin small end and a box large end, and the auxiliary shoulder just has a given auxiliary locking positioning function, so that the interference fit of the surface of a main shoulder and a threaded section can be accurately realized; in addition, the auxiliary shoulder can bear partial load in the working state, the torsional strength of the drill stem can also be improved, and the safety of the drill stem can be guaranteed; and meanwhile, the pin small end of a drill stem body is a stepped platform, and the stepped platform forms a reinforced section of the pin small end, so that the overall strength of the drill stem can be improved. Two ends of the drill stem are additionally provided with a plurality of wear-resistant belts, so that a drill stem connector can be prevented from being worn, and the normal connection between the drill stems can be realized; and the drill stem is provided with a spiral groove, so that sludge in the drilling can be conveyed upwards by virtue of the groove, and the resistance borne by the drill stem is reduced.
Description
Technical field
The present invention relates to the high rigidity drilling rod of a kind of band antifriction band, belong to oil drill rocker technical field.
Background technology
In the drilling process of oil, natural gas, water source and mineral reserve, it is required for using drilling rod.Drilling rod is coupled together by tool joint, and in During regular rotation, drilling rod to bear the effect of external and internal pressure, axial force, moment of flexure and moment of torsion simultaneously.
But common drill rod hardness is the highest, when, after life-time service, tool joint can frequently occur failure accidents so that it is become the principal mode that drilling rod lost efficacy.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that one is the most easy to wear, hardness is high, the high rigidity drilling rod of the band antifriction band that safety is good.
The object of the present invention is achieved like this:
A kind of high rigidity drilling rod of band antifriction band, it includes drilling rod body, the periphery of the pin thread small end of described drilling rod body is provided with external screw thread, the inwall of the big end of box of drilling rod body is provided with female thread, the external screw thread of adjacent two drilling rods engages with female thread, two drilling rods are coupled together, and drilling rod body offers step surface at the two ends up and down at externally threaded upper and lower two ends and female thread, wherein the step of external screw thread lower end and female thread lower end is main shoulder, the step of external screw thread upper end and female thread upper end is slave station shoulder, the pin thread small end of drilling rod body is bucking ladder simultaneously, described bucking ladder forms the strengthening segment of pin thread small end, described drilling rod body two ends are provided with a plurality of antifriction band, it is further opened with some helical grooves on drilling rod body simultaneously.
The high rigidity drilling rod of band antifriction band of the present invention has the advantage that
The high rigidity drilling rod of band antifriction band of the present invention is takeed on by adding a slave station in the engagement place of the big end of pin thread small end and box; slave station shoulder and main shoulder i.e. form dual stage shoulder structure; main circular bead surface and thread segment produce certain interference fit; slave station is takeed on the most just to have in certain auxiliary and is anchored bit function; thus ensure the accurate realization of main circular bead surface and thread segment interference fit; in addition; slave station shoulder in working order in also can receiving portion separate loading; play certain overload protective function; and the torsional strength of drilling rod can also be improved, it is ensured that the safety of drilling rod；
The pin thread small end of drilling rod body is bucking ladder simultaneously, and described bucking ladder forms the strengthening segment of pin thread small end, can improve the bulk strength of drilling rod；
Added a plurality of wear-resistant strip at the two ends of drilling rod simultaneously, it is possible to prevent at tool joint to be worn, strengthen the intensity at tool joint simultaneously, so that can normally connect between drilling rod, ensure that its safety, drilling rod is provided with helical groove, the mud in drilling well can be allowed up to be carried by groove, decrease the resistance that drilling rod is subject to.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high rigidity drilling rod of band antifriction band of the present invention.
Fig. 2 is the connection diagram of adjacent two drilling rods.
Fig. 3 is the enlarged drawing in Fig. 2 at the external screw thread of drilling rod body, female thread.
In figure: drilling rod body 1, external screw thread 2, female thread 3, main shoulder 4, slave station shoulder 5, bucking ladder 6, helical groove 7, antifriction band 8.
Detailed description of the invention
See Fig. 1 to Fig. 3, the present invention relates to the high rigidity drilling rod of a kind of band antifriction band, including drilling rod body 1, the periphery of the pin thread small end of described drilling rod body 1 is provided with external screw thread 2, the inwall of the big end of box of drilling rod body 1 is provided with female thread 3, the external screw thread 2 of adjacent two drilling rods engages with female thread 3, two drilling rods are coupled together, and drilling rod body 1 offers step surface at the two ends up and down of external screw thread 2 and the two ends up and down of female thread 3, wherein the step of external screw thread 2 lower end and female thread 3 lower end is main shoulder 4, the step of external screw thread 2 upper end and female thread 3 upper end is slave station shoulder 5.
Described main shoulder 4 and slave station shoulder 5 i.e. form dual stage shoulder structure; main shoulder 4 and thread segment produce certain interference fit; slave station shoulder 5 the most just has in certain auxiliary and anchors bit function; thus ensure the accurate realization of the interference fit of main shoulder 4 and thread segment; additionally, slave station shoulder 5 in working order in also can receiving portion separate loading, play certain overload protective function; and the torsional strength of drilling rod can also be improved, it is ensured that the safety of drilling rod.
The pin thread small end of drilling rod body 1 is bucking ladder 6 simultaneously, and described bucking ladder 6 forms the strengthening segment of pin thread small end, can improve the bulk strength of drilling rod.
Described drilling rod body 1 two ends are provided with a plurality of antifriction band 8, this antifriction band 8 is possible to prevent at tool joint to be worn, strengthen the intensity at tool joint simultaneously, so that can normally connect between drilling rod, ensure that its safety, being further opened with some helical grooves 7 on drilling rod body 1, described helical groove 7 can allow the mud in drilling well up be carried by this groove, decreases the resistance that drilling rod is subject to simultaneously.
Claims (1)
- null1. the high rigidity drilling rod of a band antifriction band，It is characterized in that: it includes drilling rod body (1)，The periphery of the pin thread small end of described drilling rod body (1) is provided with external screw thread (2)，The inwall of the big end of box of drilling rod body (1) is provided with female thread (3)，The external screw thread (2) of adjacent two drilling rods engages with female thread (3)，Two drilling rods are coupled together，And drilling rod body (1) offers step surface at the two ends up and down at the two ends up and down of external screw thread (2) and female thread (3)，Wherein the step of external screw thread (2) lower end and female thread (3) lower end is main shoulder (4)，The step of external screw thread (2) upper end and female thread (3) upper end is that slave station takes on (5)，The pin thread small end of drilling rod body (1) is bucking ladder (6) simultaneously，Described bucking ladder (6) forms the strengthening segment of pin thread small end，Described drilling rod body (1) two ends are provided with a plurality of antifriction band (8)，It is further opened with some helical grooves (7) on drilling rod body (1) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549049.1A CN106014272A (en) | 2016-07-13 | 2016-07-13 | High-hardness drill stem with wear-resistant belts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549049.1A CN106014272A (en) | 2016-07-13 | 2016-07-13 | High-hardness drill stem with wear-resistant belts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014272A true CN106014272A (en) | 2016-10-12 |
Family
ID=57117643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610549049.1A Pending CN106014272A (en) | 2016-07-13 | 2016-07-13 | High-hardness drill stem with wear-resistant belts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014272A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548431A (en) * | 1981-12-17 | 1985-10-22 | Hughes Tool Company - Usa | Tool joint with internal/external make-up shoulders |
| CN201144644Y (en) * | 2008-01-18 | 2008-11-05 | 中国石油集团东方地球物理勘探有限责任公司 | Double top type hillside drill stem |
| CN201202413Y (en) * | 2008-03-28 | 2009-03-04 | 上海海隆石油管材研究所 | Drill rod joint with good anti-torque performance |
| CN201513136U (en) * | 2009-09-27 | 2010-06-23 | 无锡西姆莱斯石油专用管制造有限公司 | Double-shoulder drill pipe joint |
| CN201705226U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气集团公司 | Integral type double-shoulder sulfur resistant drill rod |
| CN102787812A (en) * | 2012-08-20 | 2012-11-21 | 山东九商工程机械有限公司 | Integral multi-prismatic drill pipe |
| CN202689971U (en) * | 2012-07-26 | 2013-01-23 | 田建伟 | Concave screw type circular drill rod |
| CN202900066U (en) * | 2012-11-14 | 2013-04-24 | 中煤科工集团西安研究院 | Externally-flush geological drill rod using double-top double-cone connection form |
| CN103388458A (en) * | 2012-05-10 | 2013-11-13 | 江阴德玛斯特钻具有限公司 | Drill stem with joints providedwith wear-resistant belts |
| CN205977116U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Take high rigidity drilling rod in antifriction area |
-
2016
- 2016-07-13 CN CN201610549049.1A patent/CN106014272A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548431A (en) * | 1981-12-17 | 1985-10-22 | Hughes Tool Company - Usa | Tool joint with internal/external make-up shoulders |
| CN201144644Y (en) * | 2008-01-18 | 2008-11-05 | 中国石油集团东方地球物理勘探有限责任公司 | Double top type hillside drill stem |
| CN201202413Y (en) * | 2008-03-28 | 2009-03-04 | 上海海隆石油管材研究所 | Drill rod joint with good anti-torque performance |
| CN201513136U (en) * | 2009-09-27 | 2010-06-23 | 无锡西姆莱斯石油专用管制造有限公司 | Double-shoulder drill pipe joint |
| CN201705226U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气集团公司 | Integral type double-shoulder sulfur resistant drill rod |
| CN103388458A (en) * | 2012-05-10 | 2013-11-13 | 江阴德玛斯特钻具有限公司 | Drill stem with joints providedwith wear-resistant belts |
| CN202689971U (en) * | 2012-07-26 | 2013-01-23 | 田建伟 | Concave screw type circular drill rod |
| CN102787812A (en) * | 2012-08-20 | 2012-11-21 | 山东九商工程机械有限公司 | Integral multi-prismatic drill pipe |
| CN202900066U (en) * | 2012-11-14 | 2013-04-24 | 中煤科工集团西安研究院 | Externally-flush geological drill rod using double-top double-cone connection form |
| CN205977116U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Take high rigidity drilling rod in antifriction area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |