SU1641715A1 - Device for protecting casing pipe thread - Google Patents

Device for protecting casing pipe thread Download PDF

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Publication number
SU1641715A1
SU1641715A1 SU884429344A SU4429344A SU1641715A1 SU 1641715 A1 SU1641715 A1 SU 1641715A1 SU 884429344 A SU884429344 A SU 884429344A SU 4429344 A SU4429344 A SU 4429344A SU 1641715 A1 SU1641715 A1 SU 1641715A1
Authority
SU
USSR - Soviet Union
Prior art keywords
wedge
casing pipe
sleeve
pipe thread
protecting casing
Prior art date
Application number
SU884429344A
Other languages
Russian (ru)
Inventor
Алексей Анатольевич Старков
Петр Петрович Мелинишин
Иван Михайлович Фрыз
Николай Алексеевич Старков
Original Assignee
Ивано-Франковское Управление Буровых Работ Производственного Объединения "Укрнефть"
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 Ивано-Франковское Управление Буровых Работ Производственного Объединения "Укрнефть" filed Critical Ивано-Франковское Управление Буровых Работ Производственного Объединения "Укрнефть"
Priority to SU884429344A priority Critical patent/SU1641715A1/en
Application granted granted Critical
Publication of SU1641715A1 publication Critical patent/SU1641715A1/en

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Abstract

Изобретение относитс  к нефтегазодобывающей промышленности, в частности дл  предохранени  резьбы обсадных труб. Цель изобретени  - повышение надежности работы. Устройство надевают на обсадную трубу, при этом клин 3 находитс  в окне 2 втулки в левом крайнем положении Под действием удара клин 3 фиксирует устройство относительно трубы, обеспечива  плотную посадку клина, исключа  при этом возможность повреждени  резьбы. 2 ил.The invention relates to the oil and gas industry, in particular for protecting the casing threads. The purpose of the invention is to increase reliability. The device is put on the casing, while the wedge 3 is in the window 2 of the sleeve in the left extreme position. Under the impact of the impact, the wedge 3 fixes the device relative to the pipe, ensuring a tight fit of the wedge, excluding the possibility of thread damage. 2 Il.

Description

Редактор О.СпесивыхEditor O.Spesyvyh

Составитель В ЛаврентьеваCompiled by Lavrentyeva

Техред М МоргенталКорректор Н Ревска Tehred M. Morgankorrektor Revsk

&иг г& ig

Claims (1)

' Формула изобретения' Claim 20 Устройство для защиты резьбы обсадных труб, содержащее втулку с окном и фиксатор, выполненный с возможностью размещения в нем, отличающееся тем, что, с целью повышения надежности 25 работы, на внутренней поверхности втулки на участке, прилегающем к окну, выполнен скос, фиксатор представляет собой клин с величиной угла, соответствующей величине угла скоса на внутренней поверхности втулки, и с вогнутой опорной поверхностью для охвата обсадной трубы на нерезьбовом ее участке.20 A device for protecting a thread of casing pipes, comprising a sleeve with a window and a latch made with the possibility of placement in it, characterized in that, in order to increase the reliability of 25 operation, a bevel is made on the inner surface of the sleeve in the area adjacent to the window, the latch represents a wedge with an angle corresponding to the angle of the bevel on the inner surface of the sleeve, and with a concave supporting surface for covering the casing in its non-threaded portion. Л - АL - A
SU884429344A 1988-05-23 1988-05-23 Device for protecting casing pipe thread SU1641715A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884429344A SU1641715A1 (en) 1988-05-23 1988-05-23 Device for protecting casing pipe thread

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884429344A SU1641715A1 (en) 1988-05-23 1988-05-23 Device for protecting casing pipe thread

Publications (1)

Publication Number Publication Date
SU1641715A1 true SU1641715A1 (en) 1991-04-15

Family

ID=21376678

Family Applications (1)

Application Number Title Priority Date Filing Date
SU884429344A SU1641715A1 (en) 1988-05-23 1988-05-23 Device for protecting casing pipe thread

Country Status (1)

Country Link
SU (1) SU1641715A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 485212,кл. Е 21 В 17/10,1968. *

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