RU97110158A - THREADED CONNECTION FOR DRILLING CELL ELEMENTS - Google Patents

THREADED CONNECTION FOR DRILLING CELL ELEMENTS

Info

Publication number
RU97110158A
RU97110158A RU97110158/03A RU97110158A RU97110158A RU 97110158 A RU97110158 A RU 97110158A RU 97110158/03 A RU97110158/03 A RU 97110158/03A RU 97110158 A RU97110158 A RU 97110158A RU 97110158 A RU97110158 A RU 97110158A
Authority
RU
Russia
Prior art keywords
threaded connection
wear
contact surface
drill string
connection according
Prior art date
Application number
RU97110158/03A
Other languages
Russian (ru)
Other versions
RU2155852C2 (en
Inventor
Лейф Нордфельт
Карл-Аксель Стьернстрем
Original Assignee
Юнирок АБ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from SE9404051A external-priority patent/SE506695C2/en
Application filed by Юнирок АБ filed Critical Юнирок АБ
Publication of RU97110158A publication Critical patent/RU97110158A/en
Application granted granted Critical
Publication of RU2155852C2 publication Critical patent/RU2155852C2/en

Links

Claims (6)

1. Резьбовое соединение для ударного бурения, содержащее первый элемент (2) бурильной колонны, снабженный у свободного конца (4) внутренней резьбой (3), и второй элемент (6) бурильной колонны, имеющий центрирующий выступ (7), снабженный внешней резьбой (8) для взаимодействия с внутренней резьбой (3) первого элемента (2) бурильной колонны, причем второй элемент (6) бурильной колонны имеет контактную поверхность (10) для взаимодействия со свободным концом (4) первого элемента (2) бурильной колонны, отличающееся тем, что на контактную поверхность (10) или свободный конец (4) путем сварки или пайки нанесен износостойкий дополнительный материал, покрывающий 50 - 100% контактной поверхности (10) и имеющий глубину 0,5 - 5 мм.1. A threaded connection for percussion drilling, containing the first element (2) of the drill string, provided at the free end (4) with an internal thread (3), and the second element (6) of the drill string, having a centering protrusion (7), equipped with an external thread ( 8) for interacting with the internal thread (3) of the first drill string element (2), the second drill string element (6) having a contact surface (10) for interacting with the free end (4) of the first drill string element (2), characterized in that on the contact surface (10) or odny end (4) by welding or soldering is applied wear resistant additional material covers 50 - 100% of the contact surface (10) and having a depth of 0.5 - 5 mm. 2. Резьбовое соединение по п. 1, отличающееся тем, что износостойким материалом является стеллит. 2. A threaded connection according to claim 1, characterized in that the wear-resistant material is stellite. 3. Резьбовое соединение по п. 1 или 2, отличающееся тем. что износостойкий материал нанесен путем плазменной сварки. 3. A threaded connection according to claim 1 or 2, characterized in that. that wear-resistant material is deposited by plasma welding. 4. Резьбовое соединение по п. 1 или 2, отличающееся тем, что износостойкий материал представляет собой кольцо, припаянное к контактной поверхности (10). 4. A threaded connection according to claim 1 or 2, characterized in that the wear-resistant material is a ring soldered to the contact surface (10). 5. Резьбовое соединение по п. 4, отличающееся тем, что кольцо выполнено из твердого металла, содержащего 5 - 20% Co. 5. A threaded connection according to claim 4, characterized in that the ring is made of solid metal containing 5 to 20% Co. 6. Резьбовое соединение по любому из предшествующих пунктов, отличающееся тем, что износостойкий материал покрывает 50 - 90% контактной поверхности (10), а его максимальный диаметр уступает внешнему диаметру этой поверхности. 6. A threaded connection according to any one of the preceding paragraphs, characterized in that the wear-resistant material covers 50 - 90% of the contact surface (10), and its maximum diameter is inferior to the outer diameter of this surface.
RU97110158/03A 1994-11-23 1995-11-21 Threaded joint for drill pipe string members for percussive drilling RU2155852C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9404051A SE506695C2 (en) 1994-11-23 1994-11-23 Threaded joint for striking drilling
SE9404051-6 1994-11-23

Publications (2)

Publication Number Publication Date
RU97110158A true RU97110158A (en) 1999-05-10
RU2155852C2 RU2155852C2 (en) 2000-09-10

Family

ID=20396077

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97110158/03A RU2155852C2 (en) 1994-11-23 1995-11-21 Threaded joint for drill pipe string members for percussive drilling

Country Status (11)

Country Link
US (1) US5785360A (en)
EP (1) EP0793764B1 (en)
AT (1) ATE190694T1 (en)
AU (1) AU688998B2 (en)
CA (1) CA2205902C (en)
DE (1) DE69515686T2 (en)
ES (1) ES2145309T3 (en)
FI (1) FI107825B (en)
RU (1) RU2155852C2 (en)
SE (1) SE506695C2 (en)
WO (1) WO1996016246A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515518C2 (en) * 1998-09-28 2001-08-20 Uniroc Ab String drill string thread for striking rock drilling
SE522221C2 (en) * 2001-10-12 2004-01-27 Sandvik Ab Striking rock drill joints
SE520077C2 (en) * 2002-06-27 2003-05-20 Sandvik Ab Male part for percussion drilling of rock, has threaded end section with specific geometry adjacent to stop surface
SE525431C2 (en) * 2003-02-24 2005-02-22 Sandvik Ab Trade for striking drilling
JP4954542B2 (en) 2005-12-09 2012-06-20 三菱マテリアル株式会社 Drilling rod, drilling bit and drilling tool
SE531459C2 (en) 2006-05-17 2009-04-14 Sandvik Intellectual Property Hondel and the procedure for the manufacture of female parts
SE0702638L (en) * 2007-11-21 2008-07-29 Sandvik Intellectual Property Percussion drill bit for rock drilling and a method for manufacturing such a drill bit
SE534450C2 (en) 2009-07-01 2011-08-30 Atlas Copco Rock Drills Ab Device and method for protecting a rock drill against corrosion attack
SE535814C2 (en) 2011-05-20 2013-01-02 Atlas Copco Secoroc Ab Threading device, threaded joint and drill string component for striking rock drilling

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052019A (en) * 1931-12-26 1936-08-25 Timken Roller Bearing Co Separable drill bit
FR984664A (en) * 1948-05-15 1951-07-09 Hughes Tool Co Connection with threaded elements applicable in particular to well drilling equipment
US2772899A (en) * 1948-05-15 1956-12-04 Hughes Tool Co Threaded oil well drill stem connection with the threads having included crest angleof 90 degrees
US3489445A (en) * 1967-10-18 1970-01-13 Archer W Kammerer Jr Threaded sucker rod joint
SE469602B (en) * 1985-04-04 1993-08-02 Sandvik Ab CUTTING HEAD BEFORE SHOCK DRILLING
SE8600199L (en) * 1986-01-17 1987-07-18 Loevab Loef Och Oestlund Ab Drilling Tools
SE469603B (en) * 1988-07-08 1993-08-02 Sandvik Ab GAENGFOERBAND
SE501356C2 (en) * 1993-07-02 1995-01-23 Uniroc Ab Threaded joint for drill string elements for striking drilling

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