EA200702676A1 - HERMETIC THREADED CONNECTION OF OIL INDUSTRIAL PIPES - Google Patents

HERMETIC THREADED CONNECTION OF OIL INDUSTRIAL PIPES

Info

Publication number
EA200702676A1
EA200702676A1 EA200702676A EA200702676A EA200702676A1 EA 200702676 A1 EA200702676 A1 EA 200702676A1 EA 200702676 A EA200702676 A EA 200702676A EA 200702676 A EA200702676 A EA 200702676A EA 200702676 A1 EA200702676 A1 EA 200702676A1
Authority
EA
Eurasian Patent Office
Prior art keywords
pipe
conical
male
sealing
female
Prior art date
Application number
EA200702676A
Other languages
Russian (ru)
Other versions
EA012780B1 (en
Inventor
Алексей Викторович ЕМЕЛЬЯНОВ
Юрий Фёдорович ЕМЕЛЬЯНОВ
Василий Васильевич Мульчин
Владимир Георгиевич Поярков
Константин Анатольевич СЕМЕРИКОВ
Павел Николаевич СИДОРЕНКО
Николай Васильевич Уразов
Николай Иванович Фартушный
Борис Юрьевич ЩЕРБАКОВ
Original Assignee
Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис"
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
Application filed by Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис" filed Critical Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис"
Publication of EA200702676A1 publication Critical patent/EA200702676A1/en
Publication of EA012780B1 publication Critical patent/EA012780B1/en

Links

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
    • 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
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Earth Drilling (AREA)

Abstract

Изобретение относится к области строительства нефтяных и газовых скважин и может быть использовано в обсадных трубах технологического назначения. Герметичное резьбовое соединение нефтепромысловых труб включает охватываемую и охватывающие трубы с коническими резьбами, уплотнительными и упорными поверхностями. Уплотнительные поверхности контактируют между собой в радиальном направлении. Уплотнительные поверхности выполнены соответственно на внешней поверхности торцевого участка охватываемой и на внутренней конической поверхности охватывающей трубы на участке между конической резьбой и телом трубы. Упорные поверхности выполнены соответственно на охватываемой трубе в виде конической торцевой поверхности с углом конуса 5°≤β≤25° в направлении оси конической резьбы и ответной торцевой конической поверхности на охватывающей трубе, выполненной на участке перехода первой конической поверхности этой трубы к ее телу. Профиль конической резьбы имеет отрицательный угол по опорной грани. Высота профиля резьбы охватываемой трубы меньше высоты профиля резьбы охватывающей трубы. Уплотнительная поверхность торцевого участка охватываемой трубы в начале и в конце зоны конусного радиального уплотнения имеет сферическую форму. Изобретение позволяет повысить надежность и герметичность соединения в условиях действия изгибных деформаций.The invention relates to the field of construction of oil and gas wells and can be used in casing technological purpose. Sealed threaded connection of oilfield pipes includes male and female pipes with tapered threads, sealing and thrust surfaces. Sealing surfaces are in contact with each other in the radial direction. Sealing surfaces are made respectively on the outer surface of the end portion of the male and on the inner conical surface of the female pipe in the area between the conical thread and the pipe body. Resistant surfaces are made respectively on the male pipe in the form of a conical end surface with a cone angle of 5 ° ≤β≤25 ° in the direction of the axis of the conical thread and the corresponding end conical surface on the female pipe, made in the transition section of the first conical surface of this pipe to its body. The tapered thread profile has a negative angle along the support face. The height of the thread profile of the male pipe is less than the height of the thread profile of the female pipe. The sealing surface of the end portion of the male pipe at the beginning and at the end of the conical radial seal zone has a spherical shape. The invention allows to increase the reliability and tightness of the connection under the action of bending deformations.

EA200702676A 2007-02-15 2007-12-28 Leak-proof screwed connection of oil-field pipes EA012780B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2007105764/03A RU2338866C1 (en) 2007-02-15 2007-02-15 Leakproof screwed connection of oil-field pipes

Publications (2)

Publication Number Publication Date
EA200702676A1 true EA200702676A1 (en) 2008-08-29
EA012780B1 EA012780B1 (en) 2009-12-30

Family

ID=39710273

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200702676A EA012780B1 (en) 2007-02-15 2007-12-28 Leak-proof screwed connection of oil-field pipes

Country Status (6)

Country Link
CA (1) CA2678604C (en)
DE (1) DE112008000391T5 (en)
EA (1) EA012780B1 (en)
RU (1) RU2338866C1 (en)
UA (1) UA94640C2 (en)
WO (1) WO2008103069A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112008003817T5 (en) * 2008-04-30 2011-04-14 Ooo "Tmk-Premium Servises" Dense threaded connection for oilfield pipes
CN101696621B (en) * 2009-11-04 2012-05-16 天津钢管集团股份有限公司 Air-tight seal screw joint
CN101806197A (en) * 2010-03-26 2010-08-18 衡阳华菱连轧管有限公司 Air-sealed saw-tooth threading connector and oil bushing and connecting hoop using same
CN102278077A (en) * 2011-07-21 2011-12-14 大庆福斯特科技开发有限公司 Thread structure for hermetic seal thread joint
CN104153718B (en) * 2014-07-22 2016-07-06 中国海洋石油总公司 The quick casing thread connection of BHC
RU2639343C1 (en) * 2016-08-29 2017-12-21 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Threaded joint of casing pipes
RU183769U1 (en) * 2018-06-05 2018-10-02 Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис" THREADED COUPLING CONNECTION
RU185225U1 (en) * 2018-07-13 2018-11-27 Акционерное общество "Выксунский металлургический завод" (АО "ВМЗ") Highly tight male threaded connection of large-diameter thin-walled electric-welded casing pipes
RU2718580C1 (en) * 2019-11-12 2020-04-08 Управляющая компания общество с ограниченной ответственностью "ТМС групп" Gas-tight threaded connection of tubing string
DE202020107520U1 (en) * 2020-12-23 2021-02-01 L.L.C. "Interpipe Management" Tight metal pipe thread connection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU434663A3 (en) * 1967-07-20 1974-06-30 Иностранец Жан Луи Альберт Дюре
DE2641767B2 (en) * 1976-09-14 1979-05-31 Mannesmann Ag, 4000 Duesseldorf Threaded connection for oil field pipes
IT1224745B (en) * 1988-10-03 1990-10-18 Dalmine Spa METALLIC HERMETIC SEAL JOINT FOR PIPES
US5137310A (en) * 1990-11-27 1992-08-11 Vallourec Industries Assembly arrangement using frustoconical screwthreads for tubes
CA2163282C (en) * 1994-11-22 2002-08-13 Miyuki Yamamoto Threaded joint for oil well pipes
AR020495A1 (en) 1999-09-21 2002-05-15 Siderca Sa Ind & Com UNION THREADED HIGH RESISTANCE AND COMPRESSION UNION
RU2256767C1 (en) * 2004-05-06 2005-07-20 Закрытое акционерное общество "Инвест ПромТорг" Threaded oil-field pipe joint with increased air-tightness (variants) and production method thereof (variants)

Also Published As

Publication number Publication date
CA2678604A1 (en) 2008-08-28
WO2008103069A1 (en) 2008-08-28
RU2338866C1 (en) 2008-11-20
CA2678604C (en) 2016-06-21
UA94640C2 (en) 2011-05-25
EA012780B1 (en) 2009-12-30
DE112008000391T5 (en) 2010-03-25

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Legal Events

Date Code Title Description
QB4A Registration of a licence in a contracting state
PC4A Registration of transfer of a eurasian patent by assignment
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM RU

NF4A Restoration of lapsed right to a eurasian patent

Designated state(s): AZ BY KZ TM