SU857427A1 - Connection of thin-wall casing tubes - Google Patents
Connection of thin-wall casing tubes Download PDFInfo
- Publication number
- SU857427A1 SU857427A1 SU792728900A SU2728900A SU857427A1 SU 857427 A1 SU857427 A1 SU 857427A1 SU 792728900 A SU792728900 A SU 792728900A SU 2728900 A SU2728900 A SU 2728900A SU 857427 A1 SU857427 A1 SU 857427A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- thin
- connection
- wall casing
- casing
- casing tubes
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
Description
(54) СОЕДИНЕНИЕ ТОНКОСТЕННЫХ ОБСАДНЫХ ТРУБ(54) CONNECTION OF THIN-WALLED CABINETS
Изобретение относитс к бурению нефт ных и газовых скважин и касаетс резьбовых соединений обсадных труб.This invention relates to the drilling of oil and gas wells and relates to threaded connections of casing.
Известно соединение обсадных труб, содержащее ниппельную и муфтовую части с конической треугольной резьбой 1.Known connection casing containing nipple and coupling parts with a conical triangular thread 1.
Недостатком известного соединени вл етс мала прочность резьбового соединени , составл юща 70-SO /o прочности тела трубы.A disadvantage of the known joint is the low strength of the threaded joint, which is 70-SO / o strength of the pipe body.
Основным видом разрушени соединений обсадных труб с треугольной конической резьбой с параметрами по ГОСТ 632-64 при приложении осевой раст гивающей нагрузки вл етс выход витков резьбы из зацеплени вырыв 2.The main type of destruction of casing joints with a triangular tapered thread with parameters in accordance with GOST 632-64 upon application of an axial tensile load is the exit of threads from an engagement cut 2.
Особенно низкие значени осевых усилий, привод щих к разобщению соединени , относ тс к тонкостенным трубам с отношением D/S 22, где D - наружный диаметр обсадной трубы; S - толщина стенки обсадной трубы.Particularly low axial forces leading to joint disconnection are thin-walled pipes with a D / S ratio of 22, where D is the outer diameter of the casing; S is the wall thickness of the casing.
Цель изобретени - повыщение прочности соединени тонкостенных обсадных труб с отношением D/S 22.The purpose of the invention is to increase the strength of the connection of thin-walled casing with the ratio D / S 22.
Указанна цель достигаетс тем, что конец трубы на длине от торца до основной плоскости резьбы выполнен коническим с посто нной толщиной стенки и конусностью, равной конусност.и резьбы.This goal is achieved by the fact that the end of the pipe on the length from the end to the main plane of the thread is made conical with a constant wall thickness and a conicity equal to the conicity and thread.
На чертеже показано соединение тонкостенных обсадных труб.The drawing shows the connection of thin-walled casing.
Соединение тонкостенных обсадных труб с отношением D/S 22 состоит из трубы 1 с нарезанной на ней резьбой 2 по ГОСТ 632-64 и муфты 3. Внутренн поверхность 4 конца трубы на длине, равной рассто нию The connection of thin-walled casing with the ratio D / S 22 consists of pipe 1 with threaded thread 2 according to GOST 632-64 and coupling 3. The internal surface 4 of the pipe ends is equal to the distance
10 от торца трубы до основной плоскости резьбы выполнена конической с образующей параллельной выступам (впадинам) резьбы.10 from the end of the pipe to the main plane of the thread is made conical with a thread forming a parallel to the protrusions (depressions).
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792728900A SU857427A1 (en) | 1979-03-05 | 1979-03-05 | Connection of thin-wall casing tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792728900A SU857427A1 (en) | 1979-03-05 | 1979-03-05 | Connection of thin-wall casing tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU857427A1 true SU857427A1 (en) | 1981-08-23 |
Family
ID=20811910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792728900A SU857427A1 (en) | 1979-03-05 | 1979-03-05 | Connection of thin-wall casing tubes |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU857427A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5169183A (en) * | 1987-05-12 | 1992-12-08 | Diamant Boart Stratabit S.A. | Threaded joint for drill rod elements |
RU192162U1 (en) * | 2019-04-15 | 2019-09-05 | Александр Алексеевич Погожев | Threaded connection of casing smooth sleeveless pipes |
-
1979
- 1979-03-05 SU SU792728900A patent/SU857427A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5169183A (en) * | 1987-05-12 | 1992-12-08 | Diamant Boart Stratabit S.A. | Threaded joint for drill rod elements |
RU192162U1 (en) * | 2019-04-15 | 2019-09-05 | Александр Алексеевич Погожев | Threaded connection of casing smooth sleeveless pipes |
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