CN101558215A - Drill pipe with tool joints - Google Patents
Drill pipe with tool joints Download PDFInfo
- Publication number
- CN101558215A CN101558215A CN200880000961.5A CN200880000961A CN101558215A CN 101558215 A CN101558215 A CN 101558215A CN 200880000961 A CN200880000961 A CN 200880000961A CN 101558215 A CN101558215 A CN 101558215A
- Authority
- CN
- China
- Prior art keywords
- coating
- tool
- joints
- tool joint
- joint
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 claims abstract description 46
- 239000011248 coating agent Substances 0.000 claims abstract description 45
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 13
- 239000010452 phosphate Substances 0.000 claims abstract description 13
- 238000009792 diffusion process Methods 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims description 24
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000011247 coating layer Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 229910000635 Spelter Inorganic materials 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 102220479482 Puromycin-sensitive aminopeptidase-like protein_C21D_mutation Human genes 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005479 sherardizing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
- C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/347—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with layers adapted for cutting tools or wear applications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The engineering problem of the claimed invention is to enhance wear- resistance of drill pipe tool joints. The proposed drill pipe consists of a body with upset ends and tool joints connected by means of friction welding, having tapered thread and a double coating, the first layer being applied by means of thermo-diffusion zincing and the second one, by means phosphate treatment. Enhancement of tool joint life, as compared to the tool joints with phosphate coating only, allows no overdimension to be stipulated for future repair purposes, which saves up to several kilos of metal per tool joint, decreasing the drill string weight by several tons. With a view to increasing the joints' durability and reliability of welding seams the thickness delta of the first coating layer as function of thread conicity K is adjusted according to the following formula: d = 0,09...0,13 K. The segment at 15 to 25 mm from the welding spot on joints is coated with phosphate only.
Description
Technical field
The present invention relates to a kind of drilling equipment, also promptly be used to drill the drilling pipe of oil gas well.
Background technology
Drilling pipe is made up of with the interlock of threaded connection the (being also referred to as joint or tool joint) pipe itself (almost not passing through the quite long element of machining).The latter is placed on and forms integral joint or the permanent two pipe ends that connect.This device is further used term " drilling pipe " expression.What term " pipe " was represented is the semiproduct drilling pipe of not being with tool joint.
Tool joint connects into drill string (drill string) with pipe and makes parts have outside taper thread (being called pipe nipple (pipe nipple)) or internal thread (being called tool joint box (tool jointbox)).What be different from pipe is that tool joint will be accepted complicated mechanical processing.Therefore, produce short circuit head respectively earlier and then they are welded on more economical material benefit on the bearing surface.At present, most of drilling pipe of production has the flash welding tool joint.In order to increase bonding area and to reduce stressedly, pipe end is made into to enlarge, and just thickens.Preparation joint and pipe end by friction welding (referring to, for example, the patent No. No.2291904 of the Russian Federation, classification number C21D 9/08) combination.
Drilling pipe weares and teares during holing.The specific tube that has the flash welding tool joint is worn and torn unevenly.The durable energy force rate drilling tool welding point of drilling pipe main body is much higher.The screw thread of tool joint weares and teares fasterly than tube body.Therefore, tool joint is designed and makes enough greatly, can bear maintenance at least once.In order to keep in repair, joint carries out Surface Machining at 20 to 40mm height place.Owing to reserved surplus capacity, the consumption of metal increases, and it is big that flexural stiffness becomes, and the size of tool joint becomes big.Only might keep in repair pipe, so the expense of overhaul must comprise the cost that pipe is transported to piping factory and return in piping factory.
At least the thread segment of drilling pipe is by special coating.Coating has strengthened the corrosion resistance and the scuff resistance of pipe and drilling equipment other parts.
For example, the screw thread of connection oil well pipeline and drilling pipe is coated the plastic metal of cupric (patent No. No.2214478 of the Russian Federation, classification number C23C 26/00).By being suppressed, friction lever on the rotating part surface, allow contact surface be got wet by particular fluid and coating is applied on each reinforcing section independently simultaneously.Described coating has strengthened corrosion resistance and has increased the scuff resistance that is threaded, but the coating processing procedure is very complicated, and this is a shortcoming.In addition, the parameter of coating is all different greatly between part and the part, and this is owing to coating is to be applied to independently on each part.The signal that processing procedure is finished is " ear-piercing whistle " to occur, and this is a very subjective criterion.
Essence and efficient from technology; near technical solution of the present invention be drilling pipe, connect box and adapter; on they be threaded, have and two-layerly form protective coating by zinc layer (10-14mcm); described coating is to be applied with by the zinc-plated means of thermal diffusion; the overburden (patent No. No.38498 of the Russian Federation, classification number F16L15/08) that also has phosphating coat coating (2-3mcm).Thermal diffusion is zinc-plated to be suitable for large-scale production most, and has guaranteed that coating has suitable quality.Apply the reliability that second phosphorization membrane can strengthen the 15mcm thermal diffusion spelter coating that continuity can't guarantee.Described duplex coating has been guaranteed the protection to link, makes them no matter can avoid corroding in storage or transportation.But coating has just ground off after the cycle in first rebuilding/damage, in maximum ten cycles, next will grind off metal threaded.Therefore, presently used coating can not strengthen the durability of tool joint.
Summary of the invention
By technology of the present invention, the result who is reached comprises that the durability with the tool joint of drilling pipe one strengthens.
This is to be reached by following content: the tool joint that drilling pipe welded has taper thread and two coating, first floor is that the mode by thermal diffusion applies, and the second layer is the mode by phosphatization, the thickness δ of first floor is a unit with μ (micron), the relation of the tapering of described thickness and screw thread (K) is as follows: δ=0.09 ... 0.13 К, and only there is a phosphate coating in section from solder joint 15-25mm (millimeter).
Applied by the thermal diffusion sherardizing and thickness (μ) equals 0.09 ... 0.13 the effect of the coating of К (wherein said K is a thread taper) is as follows: the scuff resistance of tool joint or durability strengthen, and this quantity with the trimming/damage cycle is standard.
Phosphate coat has strengthened the corrosion resistance of joint, especially do not have spelter coating the section on corrosion resistance.
Section from solder joint 15-25mm only exists phosphate coating to make drilling pipe obtain bigger durability, and this is because the reliability that is welded to connect between joint and the tube body has increased.
Description of drawings
The application's benefit is shown in Figure 1, and Fig. 1 shows the end that tape welding connects the pipe of the present invention of tool joint.
The specific embodiment
Drilling pipe is to be made of the tube body 1 that has all forever connected jointing (tool joint) 3 on both ends 2 (being welded to connect), and jointing has outside or inner cone screw thread.For example, Fig. 3 comprises the have external screw thread joint 3 of (pipe nipple).Another tube end with band female adapter is not shown in the drawings.The relevant specification of this tube end is an all fours.
Joint is except all processed coating 5 that gone up in whole surface from the section of solder joint 15-25mm, and this is to be applied with by the zinc-plated mode of thermal diffusion.The thickness δ of coating 5 is a unit with μ (micron), and it is 0.09 to 0.13 К, and wherein К is a thread taper.This correlation is to use to get from 1/6 to 1/4 the scope that taper value experimentizes and determine that the span of above-mentioned tapering is the most frequently used value that arrives of tool joint screw thread just.
On coating 5, be covered with phosphate coating 6.In the manufacture process of tool joint, on described phosphate coating section of being applied to 4 and the forward position section.The thickness of phosphate coating 6 is 1 to 3 μ, and this is a phosphatization corrosion-resistant finishes value commonly used.Preferably, thickness is 2-3mcm.
The dotted line 8 of Fig. 1 shows the size of the tool joint of present use, as a reference.
Be the manufacture method of drilling pipe of the present invention below.
At first, tube body 1 is manufactured with the section of thickened end (upset end).Then make the blank area 3 of handling coating 4 by the zinc-plated mode of thermal diffusion.The pattern that applies processing is controlled, made the final thickness of coating without prejudice to the above-mentioned relation between thickness and the joint 3 taper value K.Spelter coating 4 removes from the joint docking section then, be intended that from territory, joint 3 adjacent lateral areas to be welded on the tube body 1, span from 15 to 25mm.After that, the whole surface of joint 3 is handled by phosphatization, produces up to phosphate coating 6 (1 to 3mm).
Because spelter coating 4 has appearred in docking section and near zone at joint, intermetallic compound fails to arrive welding region, and described welding region has been preserved its strength characteristics.If joint 3 does not have the section 4 of spelter coating long less than 15mm, intermetallic compound will enter into welding region, will worsen the strength characteristics of weld seam like this.The length that increases described section 4 makes it greater than 25mm, can not allow weld seam more reliable, but has widened the zone of not protected by spelter coating 5, and this has reduced durability.
Phosphate coating 6 protection surfaces avoid corroding at memory period.This coating need be before welding, do not removed, the quality that is welded to connect can be do not had influence on because have the coating of given thickness.This coating disappears after welding, cleaning, machinery and the heat treatment step of welding region.Pad, and whole pipe, protected property enamelled coating 7 is coated with anticorrosion.
If the thickness δ of thermal diffusion zinc layer 4 is less than minimum set-point, if δ (μ)＜0.09 К just is that coutinuity of coating or enhancing to efficient of the present invention all can not guarantee.If layer 4 thickness δ be greater than the highest set-point, δ (μ)＞0.13 К is just begun to surpass permissible range by the increase of the tight ness rating size that types of coatings determined, this can cause drilling pipe to be ostracised in the workspace immediately.
The scope of spelter coating thickness value is to determine the end value in the trimming/damage cycle with maximum operation moment of torsion by consuming time and expensive test.When testing pipe of the present invention, if determined the above-mentioned relation between coating and the tapering is taken into account, coating can keep reaching 200 to 300 cycles, and the durable of present employed tool joint also is no more than 10 cycles.The service life of described tool joint is only handled comparing of phosphate coating with those, has been increased to 2000-3000 cycle.This is close to the durable grade that equals tube body.The trouble that maintenance and the thing followed need be delivered to piping factory and return transportation has been saved in the enhancing of described efficient.Whole drilling pipe of grinding away is fully directly delivered to the discarded metal field.
And, for later period maintenance is considered, this enhancing to tube lifetime can not make the blank area over dimensioning, (tool joint size of the present invention is compared with the tool joint size of present use, with dashed lines 8 illustrates in Fig. 1), this allows each tool joint just save the metal of several kms, drilling rod weight saving several tons.The reducing of tool joint size be by getting rid of for the metal of laying in purpose reaches, and the flexural stiffness that this has reduced drilling rod has increased it in the flexibility of curve well site institute and be that " opening " second boring provides better condition in the well construction operations.
Claims (1)
1. the equipment of asking for protection is the drilling pipe of band tool joint; described tool joint has taper thread and two coating; first floor applies by thermal diffusion is zinc-plated; and the second layer is by parkerized mode; pipe be characterised in that it the docking section and 15 to 25mm near zones on only have phosphate coat, be that the relation of tapering (K) of the thickness δ of first floor of unit and screw thread is as follows with the micron:
δ＝0.09...0.13κ
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2007127484 | 2007-07-19 | ||
| RU2007127484/06A RU2334156C1 (en) | 2007-07-19 | 2007-07-19 | Collar with connecting locks |
| PCT/IB2008/001923 WO2009016453A2 (en) | 2007-07-19 | 2008-07-14 | Drill pipe with tool joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101558215A true CN101558215A (en) | 2009-10-14 |
| CN101558215B CN101558215B (en) | 2012-11-07 |
Family
ID=39868039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880000961.5A Expired - Fee Related CN101558215B (en) | 2007-07-19 | 2008-07-14 | Drill pipe with tool joints |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101558215B (en) |
| RU (1) | RU2334156C1 (en) |
| WO (1) | WO2009016453A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670292A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Mining drill rod device |
| CN111020448A (en) * | 2019-12-12 | 2020-04-17 | 北京工商大学 | Wear-resistant anti-corrosion sucker rod coupling with oil storage and oil supplement channel on surface and preparation process |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949267A (en) * | 2010-09-13 | 2011-01-19 | 康庆刚 | Drill rod connecting hoop |
| RU2465112C2 (en) * | 2010-12-29 | 2012-10-27 | Открытое Акционерное Общество "Дефорт" | Method of making drill string section locks |
| CN102213080A (en) * | 2011-06-15 | 2011-10-12 | 吴宣成 | Drill rod connecting hand |
| CN103495839B (en) * | 2013-09-24 | 2015-11-25 | 上海海隆石油管材研究所 | The processing method of what a kind of built-up welding was shaping make a trip fast drilling rod height station structure |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758025A (en) * | 1985-06-18 | 1988-07-19 | Mobil Oil Corporation | Use of electroless metal coating to prevent galling of threaded tubular joints |
| CA1322773C (en) * | 1989-07-28 | 1993-10-05 | Erich F. Klementich | Threaded tubular connection |
| CN2069922U (en) * | 1990-05-02 | 1991-01-23 | 云南省地矿局探矿工艺研究室 | Tip cone drilling rod joint |
| US5212885A (en) * | 1992-01-21 | 1993-05-25 | Exxon Production Research Company | High gas sealibility makeup for API buttress connections |
| FR2761450B1 (en) * | 1997-03-27 | 1999-05-07 | Vallourec Mannesmann Oil & Gas | THREADED JOINT FOR TUBES |
| SE0000702L (en) * | 2000-03-02 | 2001-06-25 | Sandvik Ab | Threaded joints and rock drill elements for striking drilling |
| CN100519984C (en) * | 2001-04-11 | 2009-07-29 | 住友金属工业株式会社 | Threaded joint for steel pipe |
| JP4599874B2 (en) * | 2004-04-06 | 2010-12-15 | 住友金属工業株式会社 | Threaded joint for oil well pipe and method for manufacturing the same |
| CN2779036Y (en) * | 2004-12-29 | 2006-05-10 | 上海佳骏石油设备配件有限公司 | Screw-threaded drilling rod |
-
2007
- 2007-07-19 RU RU2007127484/06A patent/RU2334156C1/en active IP Right Revival
-
2008
- 2008-07-14 CN CN200880000961.5A patent/CN101558215B/en not_active Expired - Fee Related
- 2008-07-14 WO PCT/IB2008/001923 patent/WO2009016453A2/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670292A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Mining drill rod device |
| CN111020448A (en) * | 2019-12-12 | 2020-04-17 | 北京工商大学 | Wear-resistant anti-corrosion sucker rod coupling with oil storage and oil supplement channel on surface and preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2334156C1 (en) | 2008-09-20 |
| WO2009016453A2 (en) | 2009-02-05 |
| WO2009016453A3 (en) | 2009-06-18 |
| CN101558215B (en) | 2012-11-07 |
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