SU1618868A1 - Cementing collar - Google Patents
Cementing collar Download PDFInfo
- Publication number
- SU1618868A1 SU1618868A1 SU874316452A SU4316452A SU1618868A1 SU 1618868 A1 SU1618868 A1 SU 1618868A1 SU 874316452 A SU874316452 A SU 874316452A SU 4316452 A SU4316452 A SU 4316452A SU 1618868 A1 SU1618868 A1 SU 1618868A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- housing
- casing
- coupling
- cementing
- annular groove
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
Abstract
Изобретение относитс к бурению скважин и предназначено дл их ступенчатого цементировани . Цель - повышение надежности работы муфты за счет повышени ее герметичности. Дл этого погружающий элемент 10 муфты выполнен с гидравлической камерой 11 и установлен под цементировочными отверсти ми 4 кожуха 2. Корпус 1 муфты в нижней части выполнен со стопорными пластинами 13, а в верхней части - с кольцевой проточкой 14, через которую образованна корпусом 1 и кожухом 2 кольцева полость 5 сообщена с осевым каналом корпуса 1. Помещенный в полости 5 запорный золотник 6 в нижней части выполнен с пазами 15 дл стопорных пластин 13, а в верхней части - с перекрывателем 16, установленным в проточке 14 корпуса 1 и св занным с золотником 6 срезным элементом 17. В корпусе 1 установлена на срезных элементах 9 втулка 7 и выполнена с радиальными отверсти ми 18, посадочным седлом 8 и кольцевой проточкой 19 в нижней части, где помещены штифты. Устройство обеспечивает освобождение проходного сечени колонн в скважинах по всей глубине. 2 ил. SS «/The invention relates to the drilling of wells and is intended for stepwise cementing. The goal is to increase the reliability of the coupling by increasing its tightness. For this, the immersing element 10 of the coupling is made with a hydraulic chamber 11 and is installed under the cementing openings 4 of the casing 2. The housing 1 of the coupling in the lower part is made with locking plates 13, and in the upper part with an annular groove 14 through which formed by the housing 1 and the casing 2 the annular cavity 5 communicates with the axial channel of the housing 1. Placed in the cavity 5, the locking valve 6 in the lower part is made with grooves 15 for the locking plates 13, and in the upper part with the shutter 16 installed in the groove 14 of the housing 1 and associated with 6 pendulum shear member 17. The body 1 is mounted on the shear elements 7 and the sleeve 9 is provided with radial holes 18, the valve seat 8 and an annular groove 19 in the lower portion where the pins are placed. The device provides the release of the column cross section in the wells throughout the depth. 2 Il. SS "/
Description
66
Фиг. гFIG. g
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874316452A SU1618868A1 (en) | 1987-10-15 | 1987-10-15 | Cementing collar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874316452A SU1618868A1 (en) | 1987-10-15 | 1987-10-15 | Cementing collar |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1618868A1 true SU1618868A1 (en) | 1991-01-07 |
Family
ID=21331775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874316452A SU1618868A1 (en) | 1987-10-15 | 1987-10-15 | Cementing collar |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1618868A1 (en) |
-
1987
- 1987-10-15 SU SU874316452A patent/SU1618868A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1198188, кл. Е 21 В 33/14, 1985. Авторское свидетельство СССР № 840300, кл. Е 21 В 33/14, 1981. * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6321847B1 (en) | Downhole pressure activated device and a method | |
SU1618868A1 (en) | Cementing collar | |
RU2021486C1 (en) | Packer | |
SU1439211A1 (en) | Casing string cementing arrangement | |
RU2171361C1 (en) | Device for stage cementing of well | |
SU1758211A1 (en) | Device for reverse cementing of casing strings | |
SU746085A1 (en) | Valve device of packer for double stage cementing of casing string | |
SU1493768A1 (en) | Casing valve | |
SU1654526A1 (en) | Nonreturn valve | |
SU1654552A1 (en) | Device for setting coverage element in the borehole | |
SU412368A1 (en) | ||
RU1803535C (en) | Gear for stepped grouting of wells | |
SU1395809A1 (en) | Apparatus for cementing wells | |
SU1707187A1 (en) | Device for stage cementing of wells | |
SU1625977A1 (en) | Device for stepwise cementing of wells | |
SU1765367A1 (en) | Casing stepped cementation sleeve | |
SU1629490A1 (en) | A valve for a casing string | |
SU1700198A1 (en) | Packer | |
SU1198188A1 (en) | Collar for stagewise cementing of casings | |
RU48577U1 (en) | CASE VALVE | |
SU1714079A1 (en) | Mechanical-hydraulic packer | |
SU929816A1 (en) | Sleeve for stage-wise cementing of casings | |
SU1138478A1 (en) | Arrangement for isolating a formation in a well | |
SU443161A1 (en) | Casing differential valve | |
RU2047735C1 (en) | Coupling for stepwise cementation of casing string |