EP2079822A1 - Lubricating coating composition suitable for tubular threaded joints - Google Patents
Lubricating coating composition suitable for tubular threaded jointsInfo
- Publication number
- EP2079822A1 EP2079822A1 EP07830127A EP07830127A EP2079822A1 EP 2079822 A1 EP2079822 A1 EP 2079822A1 EP 07830127 A EP07830127 A EP 07830127A EP 07830127 A EP07830127 A EP 07830127A EP 2079822 A1 EP2079822 A1 EP 2079822A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- basic
- lubricating coating
- coating composition
- salt
- lubricant
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/14—Synthetic waxes, e.g. polythene waxes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/17—Fisher Tropsch reaction products
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/18—Natural waxes, e.g. ceresin, ozocerite, bees wax, carnauba; Degras
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/0235—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/028—Overbased salts thereof
- C10M2207/0285—Overbased salts thereof used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/1253—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/26—Overbased carboxylic acid salts
- C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
- C10M2207/2623—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
- C10M2219/0463—Overbasedsulfonic acid salts used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/015—Dispersions of solid lubricants
- C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2080/00—Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal
-
- 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
- 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
Definitions
- This invention relates to a lubricating coating composition suitable for lubricating coating treatment of tubular threaded joints which are used to connect oil country tubular goods (abbreviated as OCTG) to each other.
- OCTG oil country tubular goods
- a compound grease contains a large amount of powder of heavy metals such as lead, zinc, and copper in order to provide the compound grease with sufficient lubricity and corrosion resistance. Therefore, the applied grease causes environmental pollution if it is washed off or squeezed out to its surroundings. In addition, the process of applying a compound grease worsens the work environment and decreases the efficiency of the operation of assembling OCTG. Accordingly, there has been a demand for a tubular threaded joint which fulfills its function sufficiently without application of a compound grease.
- Patent Document 1 JP 2002-173692 Al
- any percent relating to a chemical composition is by mass unless otherwise indicated.
- the base number (as specified in JIS K2501) of the basic lubricant which is used increases, its lubricity (galling resistance) tends to increase, since the amount of calcium carbonate microparticles serving as a solid lubricant increases.
- the lubricant has a basicity higher than a certain level, it can exert its activity of neutralizing an acidic substance effectively, thereby making it possible to provide a lubricating coating with an increased anti-rust ability.
- the basic lubricant which is used in the present invention have a base number (according to JIS K2501) of at least 50 mg-KOH/g.
- the pin and the box are shaped so as to interfit with each other, but when they are observed in detail, as shown in Figure 3, there are minute gaps 6 particularly between mating male and female threads. In the absence of these gaps between mating threads, tightening of a tubular threaded joint becomes practically impossible. In addition, a larger minute gap 6 usually exists between the unthreaded metal-to-metal contact portions and the thread portions of the pin and box as depicted. A lubricating composition such as a compound grease is retained in these gaps and can seep out to their surroundings under the pressure exerted during tightening and thereby prevent galling, so these minute gaps contribute to lubrication.
- a lubricating composition such as a compound grease is retained in these gaps and can seep out to their surroundings under the pressure exerted during tightening and thereby prevent galling, so these minute gaps contribute to lubrication.
- a lubricating coating composition must be applied in an amount sufficient to fill the minute gaps 6 such as those between mating threads in the engaging portions of a tubular threaded joint. If the applied amount is too small, it becomes impossible to expect the lubricants to seep into frictional interfaces or seep into a gap from other gaps under the action of the hydrostatic pressure generated by tightening.
- the thickness of a lubricating coating is preferably at least 10 micrometers. Since the engaging portions of a box and a pin contact each other when a tubular threaded joint is tightened, in the interest of achieving lubricity, it is sufficient to form a lubricating coating on the engaging portions of only one of the pin and box.
- a more preferable thickness of the lubricating coating is in the range of 30 to 150 micrometers.
- the thickness of the lubricating coating is preferably larger than the value of the surface roughness (Rmax).
- the thickness of a lubricating coating formed on a rough surface is defined in the present invention as the mean value of the smallest thickness and the largest thickness.
- the viscosity of a lubricating coating composition When the viscosity of a lubricating coating composition is too low for it to be applied at room temperature as in the case where the amount of a dissolving medium is small or even zero, it can be applied after heating to a temperature sufficient to lower the viscosity to such a degree that the composition can be applied easily.
- Etching with an acid The surface is roughened by immersion in a strongly acidic solution such as sulfuric acid, hydrochloric acid, nitric acid, or hydrofluoric acid.
- Dry-process impact plating This is a plating method such as zinc blasting or zinc-iron alloy blasting in which particles having an iron core coated with a metallic material for plating (such as a zinc or a zinc alloy) are blasted onto a surface to be plated using centrifugal force or air pressure.
- Methods (3) through (5) result in the formation of an undercoat layer having an increased surface roughness, which prevents direct metal- to-metal contact in the engaging portions after a lubricant coating has been lost, so these methods are preferred in that galling resistance and anticorrosive properties are simultaneously improved.
- a coating of manganese phosphate is preferable since it is made of bristling acicular crystals and hence can easily achieve a large surface roughness, which is good at retaining a large amount of lubricants.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006280478A JP5145684B2 (en) | 2006-10-13 | 2006-10-13 | Lubricating film forming composition suitable for threaded joints for steel pipes |
PCT/JP2007/070393 WO2008044799A1 (en) | 2006-10-13 | 2007-10-12 | Lubricating coating composition suitable for tubular threaded joints |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2079822A1 true EP2079822A1 (en) | 2009-07-22 |
EP2079822A4 EP2079822A4 (en) | 2014-08-20 |
Family
ID=39282983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07830127.2A Withdrawn EP2079822A4 (en) | 2006-10-13 | 2007-10-12 | Lubricating coating composition suitable for tubular threaded joints |
Country Status (11)
Country | Link |
---|---|
US (1) | US20090264326A1 (en) |
EP (1) | EP2079822A4 (en) |
JP (1) | JP5145684B2 (en) |
CN (1) | CN101535458B (en) |
AR (1) | AR063281A1 (en) |
BR (1) | BRPI0717398A2 (en) |
CA (1) | CA2665966C (en) |
MX (1) | MX336519B (en) |
NO (1) | NO20091381L (en) |
RU (1) | RU2418041C2 (en) |
WO (1) | WO2008044799A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AR076167A1 (en) * | 2009-03-30 | 2011-05-26 | Sumitomo Metal Ind | APPLIANCE AND METHOD FOR THE APPLICATION OF A LUBRICANT TO A THREADED PORTION OF A STEEL PIPE |
FR2966191B1 (en) | 2010-10-15 | 2013-11-01 | Vallourec Mannesmann Oil & Gas | TUBULAR THREADED COMPONENT AND RESULTING SEAL |
DE202011104255U1 (en) | 2011-08-11 | 2011-11-15 | Voswinkel Entwicklungs- Und Verwaltungs-Gmbh & Co. Kg | Screw coupling for releasably connecting high pressure hydraulic lines |
RU2627704C1 (en) * | 2013-09-02 | 2017-08-10 | Ниппон Стил Энд Сумитомо Метал Корпорейшн | Lubricating film-forming composition and threaded connection for steel pipes |
US9643206B2 (en) * | 2013-09-20 | 2017-05-09 | Nabors Industries, Inc. | Lubricant application to threaded pipe connections |
JP5979795B2 (en) * | 2014-10-28 | 2016-08-31 | ヤマハ発動機株式会社 | Connecting rod, internal combustion engine and motor vehicle |
RU2606388C1 (en) * | 2015-07-20 | 2017-01-10 | Общество с ограниченной ответственностью Научно-исследовательское производственное предприятие"ВАЛЬМА" | Thread lubricant |
WO2018003455A1 (en) | 2016-06-30 | 2018-01-04 | 新日鐵住金株式会社 | Screw joint for pipe and manufacturing method for screw joint for pipe |
EP3531001A4 (en) * | 2016-10-18 | 2020-06-10 | Nippon Steel Corporation | Threaded joint for pipe and method for manufacturing threaded joint for pipe |
US11732211B2 (en) | 2021-11-30 | 2023-08-22 | Rtx Scientific, Incorporated | Pipe sealing compound/adjunct lubricant |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1350834A1 (en) * | 2000-12-04 | 2003-10-08 | Sumitomo Metal Industries, Ltd. | Composition for lubricating-film formation suitable for lubrication of screw joint |
US20040239105A1 (en) * | 2002-05-31 | 2004-12-02 | Keishi Matsumoto | Threaded joint for steel pipes |
WO2006104251A1 (en) * | 2005-03-29 | 2006-10-05 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2813375B1 (en) | 2000-08-31 | 2003-06-20 | Vallourec Mannesmann Oil & Gas | THREADED ELEMENT FOR TUBULAR THREAD-RESISTANT THREADED JOINT |
JP2003073681A (en) * | 2001-09-03 | 2003-03-12 | Hitachi Ltd | Working medium composition for refrigerator and refrigerator using the composition |
JP2003301190A (en) * | 2002-02-06 | 2003-10-21 | Nsk Ltd | Grease composition and rotary apparatus |
US6919301B2 (en) * | 2001-10-16 | 2005-07-19 | Nsk Ltd. | Grease composition and rolling apparatus |
JP4218423B2 (en) * | 2002-05-31 | 2009-02-04 | 住友金属工業株式会社 | Threaded joints for steel pipes |
JP4305631B2 (en) * | 2003-04-11 | 2009-07-29 | 株式会社ジャパンエナジー | Biodegradable lubricant |
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 |
-
2006
- 2006-10-13 JP JP2006280478A patent/JP5145684B2/en active Active
-
2007
- 2007-10-12 EP EP07830127.2A patent/EP2079822A4/en not_active Withdrawn
- 2007-10-12 RU RU2009117854/04A patent/RU2418041C2/en not_active IP Right Cessation
- 2007-10-12 WO PCT/JP2007/070393 patent/WO2008044799A1/en active Application Filing
- 2007-10-12 CN CN2007800427433A patent/CN101535458B/en not_active Expired - Fee Related
- 2007-10-12 CA CA2665966A patent/CA2665966C/en not_active Expired - Fee Related
- 2007-10-12 MX MX2009003864A patent/MX336519B/en unknown
- 2007-10-12 BR BRPI0717398-9A patent/BRPI0717398A2/en not_active Application Discontinuation
- 2007-10-12 AR ARP070104541A patent/AR063281A1/en active IP Right Grant
-
2009
- 2009-04-03 NO NO20091381A patent/NO20091381L/en not_active Application Discontinuation
- 2009-04-10 US US12/385,531 patent/US20090264326A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1350834A1 (en) * | 2000-12-04 | 2003-10-08 | Sumitomo Metal Industries, Ltd. | Composition for lubricating-film formation suitable for lubrication of screw joint |
US20040239105A1 (en) * | 2002-05-31 | 2004-12-02 | Keishi Matsumoto | Threaded joint for steel pipes |
WO2006104251A1 (en) * | 2005-03-29 | 2006-10-05 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
Non-Patent Citations (1)
Title |
---|
See also references of WO2008044799A1 * |
Also Published As
Publication number | Publication date |
---|---|
RU2009117854A (en) | 2010-11-20 |
CA2665966C (en) | 2012-01-03 |
AR063281A1 (en) | 2009-01-21 |
RU2418041C2 (en) | 2011-05-10 |
WO2008044799A1 (en) | 2008-04-17 |
JP2008095019A (en) | 2008-04-24 |
MX2009003864A (en) | 2009-07-02 |
JP5145684B2 (en) | 2013-02-20 |
EP2079822A4 (en) | 2014-08-20 |
CN101535458A (en) | 2009-09-16 |
US20090264326A1 (en) | 2009-10-22 |
BRPI0717398A2 (en) | 2013-10-15 |
NO20091381L (en) | 2009-07-09 |
MX336519B (en) | 2016-01-21 |
CN101535458B (en) | 2013-06-05 |
CA2665966A1 (en) | 2008-04-17 |
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