SU1645433A1 - Bit for boring with continuous evacuation of core - Google Patents
Bit for boring with continuous evacuation of core Download PDFInfo
- Publication number
- SU1645433A1 SU1645433A1 SU884486663A SU4486663A SU1645433A1 SU 1645433 A1 SU1645433 A1 SU 1645433A1 SU 884486663 A SU884486663 A SU 884486663A SU 4486663 A SU4486663 A SU 4486663A SU 1645433 A1 SU1645433 A1 SU 1645433A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- core
- grooves
- housing
- crown
- longitudinal channels
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
Abstract
Изобретение относитс к породораз- рушающему инструменту, примен емому при бурении скважин. Цель изобретени - повышение эффективности работы коронки за счет упор дочени шламоотвода и уменьшени самозаклинок керна. Коронка содержит корпус 1 с продольными каналами 4 дл подачи очистного агента и рабочими секторами 5, армированными породоразру- шающими элементами 6. Корпус 1 в нижней части выполнен с боковыми пазами 3. расположенными на его внутренней поверхности между рабочими секторами 5. Удаление выходной части продольных каналов 4 от забо исключает их зашламование. что имеет особое значение при бурении воздухом. Наличие пазов 3 уменьшает самозаклинивание кернового материала бла годар возможности отвода части его в пазы 3 и постепенной подаче этого материала вверх с керном и шламом. 1 з.п. ф-лы, 2 ил. se (ЛThe invention relates to a rock destructive tool used in the drilling of wells. The purpose of the invention is to increase the efficiency of the crown due to the ordering of the sludge outlet and the reduction of self-shoring of the core. The crown contains a housing 1 with longitudinal channels 4 for supplying a cleaning agent and working sectors 5 reinforced by rock-forming elements 6. The housing 1 in the lower part is made with side grooves 3. located on its inner surface between the working sectors 5. Removing the output part of the longitudinal channels 4 from Zabo excludes their slurring. which is of particular importance in air drilling. The presence of the grooves 3 reduces the self-jamming of core material due to the possibility of withdrawing a part of it into the grooves 3 and gradually feeding this material upward with core and sludge. 1 hp f-ly, 2 ill. se (L
Description
-J-J
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884486663A SU1645433A1 (en) | 1988-09-26 | 1988-09-26 | Bit for boring with continuous evacuation of core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884486663A SU1645433A1 (en) | 1988-09-26 | 1988-09-26 | Bit for boring with continuous evacuation of core |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1645433A1 true SU1645433A1 (en) | 1991-04-30 |
Family
ID=21400997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884486663A SU1645433A1 (en) | 1988-09-26 | 1988-09-26 | Bit for boring with continuous evacuation of core |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1645433A1 (en) |
-
1988
- 1988-09-26 SU SU884486663A patent/SU1645433A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 474598, кл. Е 21 В 10/02, 1972. Авторское свидетельство СССР № 825833, кл. Е 21 В 10/02, 1979. * |
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