公开(公告)号：EP2059704A4

公开(公告)日：2011-05-25

申请号：EP07807804

申请日：2007-09-13

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： GOTO KUNIO ,  NAGASAKU SHIGEO ,  ONISHI SHIGEO ,  IKEGAMI HIROAKI

IPC: F16L15/04 ,  C23C28/00

CPC classification number: C10M169/041 ,  C10M2201/0653 ,  C10M2201/0663 ,  C10M2201/1033 ,  C10M2205/183 ,  C10M2209/006 ,  C10M2215/006 ,  C10N2230/06 ,  C10N2230/12 ,  C10N2240/408 ,  C10N2250/141 ,  C23C28/00 ,  C23C28/021 ,  C23C28/023 ,  E21B17/042 ,  F16L15/001 ,  F16L58/182

Abstract: A threaded joint for steel pipes having excellent galling resistance, rust preventing properties, and airtightness without using a compound grease comprises a pin and a box each having a threaded portion and an unthreaded metal-to-metal contact portion serving as contact surfaces. The contact surfaces of at least one of the pin and the box are coated with a multi-layered structure comprising, from the bottom, a first layer formed from a first metal or alloy, a second layer formed from a second metal or alloy which is softer than the first metal or alloy, and an uppermost layer of a solid lubricating coating comprising a lubricating powder in an organic or inorganic binder.

公开(公告)号：EP1378699A4

公开(公告)日：2007-10-17

申请号：EP02717105

申请日：2002-04-11

Applicant: SUMITOMO METAL IND

Inventor： GOTO KUNIO

IPC: E21B17/042 ,  F16L15/00 ,  F16L15/04 ,  C23C24/08

CPC classification number: E21B17/042 ,  C10M111/04 ,  C10M177/00 ,  C10M2201/0413 ,  C10M2201/0613 ,  C10M2201/0623 ,  C10M2201/0653 ,  C10M2201/0663 ,  C10M2201/0803 ,  C10M2201/084 ,  C10M2209/1003 ,  C10M2209/1013 ,  C10M2217/0443 ,  C10N2230/06 ,  C10N2240/22 ,  C10N2250/08 ,  C10N2250/121 ,  C10N2270/00 ,  C10N2280/00 ,  C23C24/08 ,  F16L15/00 ,  F16L15/001 ,  F16L15/004 ,  F16L58/182 ,  Y10T428/139 ,  Y10T428/1393 ,  Y10T428/31529 ,  Y10T428/31678

Abstract: A threaded joint for steel pipe formed of a pin and a box having a contact surface including threaded parts and a non-threaded metal contact part and capable of preventing a seizure by repeated tightening and loosening operations without applying compound grease thereto, wherein a solid lubricating film including lubricating powder such as molybdenum disulfide and resin binder is formed on the contact surface of at least one of the pin and box by drying the film by a primary heating in the temperature range of 70 to 150 DEG C and by a secondary heating in the temperature range of more than 150 to 380 DEG C, the solid lubricating film thus obtained has a Rockwell M scale hardness of 70 to 140, an adhesive strength of 500 N/m or higher obtained by the SAICAS method (surface-boundary cutting method), and excellent seizure resistance and airtightness even in a high temperature well environment, and, when ultraviolet ray shielding particles such as titanium oxide are contained in the solid lubricating film, the rust-proofness of the threaded joint is increased.

公开(公告)号：EP1350834A4

公开(公告)日：2005-04-20

申请号：EP01999621

申请日：2001-12-04

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： GOTO KUNIO ,  NAGASAKU SHIGEO ,  YAMAMOTO HIDEO

IPC: C10M109/02 ,  C10M111/04 ,  C10M121/02 ,  C10M129/16 ,  C10M135/06 ,  C10M135/20 ,  C10M137/02 ,  C10M137/04 ,  C10M137/10 ,  C10M143/02 ,  C10M143/04 ,  C10M143/16 ,  C10M145/14 ,  C10M149/18 ,  C10M159/20 ,  C10M159/22 ,  C10M159/24 ,  C10M165/00 ,  C10M167/00 ,  C10M169/04 ,  C10N10/04 ,  C10N10/12 ,  C10N20/00 ,  C10N20/06 ,  C10N30/06 ,  C10N30/12 ,  C10N40/00 ,  C10N40/34 ,  C10N50/02 ,  E21B17/042 ,  F16L15/04

CPC classification number: C10M111/04 ,  C10M159/20 ,  C10M165/00 ,  C10M167/00 ,  C10M169/042 ,  C10M169/047 ,  C10M169/048 ,  C10M2203/065 ,  C10M2203/1006 ,  C10M2205/022 ,  C10M2205/0225 ,  C10M2205/024 ,  C10M2205/04 ,  C10M2205/043 ,  C10M2207/028 ,  C10M2207/0285 ,  C10M2207/126 ,  C10M2207/262 ,  C10M2207/2623 ,  C10M2207/289 ,  C10M2207/40 ,  C10M2209/084 ,  C10M2209/0845 ,  C10M2217/044 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/0463 ,  C10M2219/089 ,  C10M2223/04 ,  C10M2223/045 ,  C10N2210/02 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2230/12 ,  C10N2230/52 ,  C10N2250/121 ,  C10N2280/00 ,  F16L15/004 ,  F16L58/182

Abstract: A composition for lubricating-film formation which comprises a base and dissolved therein at least one basic oil selected among basic sulfonates, basic salicylates, and basic phenates. The composition is applied to the frictional surface of a box and/or pin constituting a screw joint to form a lubricating film. The composition can further contain one or more of particulate thermoplastic resins, other oils, and extreme-pressure additives. The mating parts preferably have a surface roughness of 5 to 40 mu m in terms of Rmax.

公开(公告)号：EP2210931A4

公开(公告)日：2011-09-21

申请号：EP08843819

申请日：2008-10-31

Applicant: SUMITOMO METAL IND ,  VALLOUREC MANNESMANN OIL & GAS

Inventor： GOTO KUNIO ,  IMAI RYUICHI ,  FUKUMOTO SHIGEKI ,  YAMAMOTO YASUHIRO

IPC: C10M169/04 ,  C10N10/04 ,  C10N30/06 ,  C10N30/12 ,  C10N50/10 ,  C10N80/00 ,  F16L15/00 ,  F16L15/08 ,  F16L58/18

CPC classification number: F16L15/08 ,  C10M111/06 ,  C10M169/04 ,  C10M2201/041 ,  C10M2201/0413 ,  C10M2201/042 ,  C10M2201/0423 ,  C10M2201/061 ,  C10M2201/065 ,  C10M2201/066 ,  C10M2205/143 ,  C10M2205/16 ,  C10M2205/163 ,  C10M2205/18 ,  C10M2205/183 ,  C10M2205/20 ,  C10M2205/203 ,  C10M2207/126 ,  C10M2207/203 ,  C10M2207/26 ,  C10M2209/12 ,  C10M2209/123 ,  C10M2213/062 ,  C10N2210/02 ,  C10N2230/06 ,  C10N2230/12 ,  C10N2240/22 ,  C10N2250/08 ,  C10N2250/10 ,  C10N2250/121 ,  C10N2280/00 ,  F16L15/001 ,  F16L58/182

Abstract: A lubricating coating which is free from harmful heavy metals is formed on a premium threaded joint for pipes constituted by a pin and a box each having a contact surface comprising a threaded portion and an unthreaded metal contact portion (a sealing surface and shoulder) in order to provide the joint with galling resistance, gas-tightness, and anticorrosive properties such that the unthreaded metal contact portion is prevented from yielding even when the joint is made up with a high torque. The lubricating coating comprises one or both of a rosin and calcium fluoride; metal soap; wax; and a basic metal salt of an aromatic organic acid, and preferably it further includes a lubricating powder, magnesium carbonate, and/or a carbohydrate, particularly a cyclodextrin.

公开(公告)号：EP1894641A4

公开(公告)日：2009-07-01

申请号：EP06746892

申请日：2006-05-26

Applicant: SUMITOMO METAL IND

Inventor： GOTO KUNIO

IPC: B21B27/02 ,  B21B19/04 ,  C22C37/00 ,  C22C38/00 ,  C22C38/58

CPC classification number: C22C38/44 ,  B21B19/04 ,  B21B27/024 ,  B21B27/025 ,  B21B27/035 ,  B21B27/037 ,  B21B2267/26 ,  C22C38/02 ,  C22C38/04 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52

Abstract: A roll for rolling seamless pipes which has a roll neck and a roll body, wherein the surface layer of the roll body comprises by mass: C: 1.5 to 2.5%, Si: 1.3 to 3.5%, Mn: 0.1 to 2.0%, Ni: 0.5 to 8.0%, Cr: 0.1 to 2.0%, Mo: 0.2 to 5.0%, V: 0.1 to 5.0%, W: 0.1 to 5.0%, Nb: 0.1 to 5.0%, and Co: 0.05 to 2.0% with the balance being Fe and impurities, and further contains 0.5 to 5.0% of graphite by area ratio. The roll has high abrasion resistance and excellent biting properties.

公开(公告)号：EP1705265A4

公开(公告)日：2009-05-13

申请号：EP04819957

申请日：2004-12-06

Applicant: SUMITOMO METAL IND

Inventor： IZAWA MASARU ,  GOTO KUNIO ,  UJITA Y ,  TAKANO T

IPC: C23C22/78 ,  C23C22/18 ,  F16L15/00 ,  F16L58/18

CPC classification number: F16L15/001 ,  C23C22/78 ,  F16L58/182

Abstract: The surface adjustment treatment of a screw joint for an oil well pipe by the use of an aqueous solution of potassium tetraborate or sodium tetraborate and then the manganese phosphate based chemical treatment of the resultant screw joint results in the formation of a manganese phosphate based chemical coating film comprising coarse crystal grains having an average grain diameter of 10 to 110 mum on the surface of various steel products including a high Cr steel. The above manganese phosphate based chemical coating film can hold a large amount of a liquid lubricating agent, and consequently, is effective for the prevention of the occurrence of galling upon the joining of the screw joint for an oil well pipe.

公开(公告)号：EP1382718A4

公开(公告)日：2009-05-13

申请号：EP02703867

申请日：2002-02-21

Applicant: SUMITOMO METAL IND

Inventor： IZAWA MASARU ,  GOTO KUNIO

IPC: C23C22/07 ,  B05D7/14 ,  C23C22/00 ,  C23C22/08 ,  C23C22/12 ,  C23C22/18 ,  C23C22/50 ,  C23C22/62 ,  F16L15/00 ,  F16L58/18

CPC classification number: C23C22/08 ,  C23C22/00 ,  C23C22/12 ,  C23C22/18 ,  Y10T428/13 ,  Y10T428/264 ,  Y10T428/265

Abstract: A chemical conversion film having a specified thickness and containing a potassium compound in a specified amount is formed on the surface of a screw of a joint portion of an oil well steel pipe by using a chemical conversion treatment solution added with a potassium ion in a specified amount. The chemical conversion treatment solution allows the stable formation of a phosphate chemical conversion film on a joint portion of an oil well pipe steel product which contains 0.5 to 13 % of Cr.

公开(公告)号：EP1365183A4

公开(公告)日：2005-10-12

申请号：EP02710333

申请日：2002-01-23

Applicant: SUMITOMO METAL IND

Inventor： GOTO KUNIO ,  ANRAKU T

IPC: E21B17/042 ,  C10M103/00 ,  C10M103/02 ,  C10M103/06 ,  C10M105/72 ,  C10M105/74 ,  C10M107/38 ,  C10M143/02 ,  C10M145/20 ,  C10M145/24 ,  C10M149/18 ,  C10M151/04 ,  C10M155/00 ,  C10M155/02 ,  C10M159/20 ,  C10M159/22 ,  C10M159/24 ,  C10N10/02 ,  C10N10/04 ,  C10N10/06 ,  C10N10/08 ,  C10N10/12 ,  C10N10/14 ,  C10N20/00 ,  C10N30/06 ,  C10N30/12 ,  C10N40/00 ,  C10N50/02 ,  C10N50/08 ,  F16L15/00 ,  F16L15/04 ,  F16L58/08 ,  F16L58/18

CPC classification number: C10M169/02 ,  C10M2205/022 ,  C10M2207/0285 ,  C10M2207/126 ,  C10M2207/2623 ,  C10M2207/283 ,  C10M2209/084 ,  C10M2219/024 ,  C10M2219/0463 ,  C10M2223/04 ,  C10M2223/045 ,  C10N2230/12 ,  C10N2230/52 ,  F16L15/001 ,  F16L58/08 ,  F16L58/182 ,  Y10T428/1393

Abstract: A threaded joint for steel pipe, comprising a pin and a box allowed to be fitted to each other, wherein a porous zinc or zinc alloy layer as a lower layer by a projection plating method and a solid lubrication film (film containing lubricating powder in organic or inorganic binder) or a liquid lubricating film not containing heavy metal powder (example: liquid film formed mainly of high base organic metallic salt such as high base sulphonate) as an upper layer are provided on the thread part and the metal contact part without thread of at least either of the pin and box, whereby the threaded joint can provide excellent seizure resistance, corrosion resistance, and airtightness even after exposed to high temperature, and is allowed to be tightened and loosened repeatedly in a hot oil well without using compound grease containing heavy metal powder.

公开(公告)号：EA023109B1

公开(公告)日：2016-04-29

申请号：EA201170577

申请日：2009-10-05

Applicant: VALLOUREC MANNESMANN OIL & GAS ,  SUMITOMO METAL IND

Inventor： PINEL ELIETTE ,  GARD ERIC ,  GOTO KUNIO

IPC: C10M169/04 ,  C10M105/34 ,  C10N10/02 ,  C10N10/04 ,  C10N10/06 ,  C10N10/10 ,  C10N10/12 ,  C10N20/02 ,  C10N30/12

Abstract: Пленкообразующаясмазывающаякомпозициядлясвинчиваниярезьбовыхсоединений, предназначеннаядляпокрытияпоменьшеймереоднойрезьбы (FE, FI) иупорасвинчивания (BVM, BVF) резьбовогоэлемента (ЕМ, EF) компонента (Т2, Т1) резьбовоготрубногосоединения (JF) пленкой, находящейсяв твердомсостоянии, котораяприлипаетк резьбе (FE, FI) иуказанномуупорусвинчивания (BVM, BVF), гдеуказанныйупорсвинчивания (BVM, BVF) предназначендляупоравовторойупор (BVF, BVM) второгокомпонента (T1, T2) указанногорезьбовоготрубногосоединения (JF) входеконечногоэтапасвинчивания, иуказаннаясмазочнаякомпозициявключаетматрицу. Матрицатакжевключаетпоменьшеймереодиндеформационностойкийматериал, выбираемыйтакимобразом, чтобыонобеспечивалуказаннуюкомпозициюв дополнениек смазывающимсвойствамкрутящиммоментомназаплечике, который, поменьшеймере, равенпороговомузначению.

公开(公告)号：EG26813A

公开(公告)日：2014-09-29

申请号：EG2011040582

申请日：2011-04-14

Applicant: SUMITOMO METAL IND VALLOUEC MANNESMANN OIL & GAS

Inventor： PINEL ELIETTE ,  GARD ERIC ,  GOTO KUNIO

Abstract: A film-forming lubrication composition for make-up of threaded connections, intended to cover at least one threading (FE, FI) and a make-up abutment (BVM, BVF) of a threaded element (EM, EF) of a component (T2, T1) of a threaded tubular connection (JF) with a solid state film which adheres to the threading (FE, FI) and to said make-up abutment (BVM, BVF), said make-up abutment (BVM, BVF) being intended to bear against another abutment (BVF, BVM) of another component (T1, T2) of said threaded tubular connection (JF) during the terminal make-up phase, and said lubrication composition comprising a matrix. The matrix further comprises at least one rheoresistant material selected so as to endow said composition, as a complement to lubrication, with a shouldering torque which is at least equal to a threshold value.