SU135054A1 - The method of sealing intertube space during the descent of the liner casing in boreholes - Google Patents

The method of sealing intertube space during the descent of the liner casing in boreholes

Info

Publication number
SU135054A1
SU135054A1 SU671838A SU671838A SU135054A1 SU 135054 A1 SU135054 A1 SU 135054A1 SU 671838 A SU671838 A SU 671838A SU 671838 A SU671838 A SU 671838A SU 135054 A1 SU135054 A1 SU 135054A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sealing
descent
boreholes
space during
liner casing
Prior art date
Application number
SU671838A
Other languages
Russian (ru)
Inventor
М.А. Абдуллаев
Г.С. Оганов
Ф.Г. Хаиме
Original Assignee
М.А. Абдуллаев
Г.С. Оганов
Ф.Г. Хаиме
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 М.А. Абдуллаев, Г.С. Оганов, Ф.Г. Хаиме filed Critical М.А. Абдуллаев
Priority to SU671838A priority Critical patent/SU135054A1/en
Application granted granted Critical
Publication of SU135054A1 publication Critical patent/SU135054A1/en

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Description

Известен способ герметизации межтрубного пространства в буровых скважинах при спуске хвостовиков обсадных колонн путем жесткого соединени  хвостовика с колонной или путем посадки верхней во ронки хвостовика на конусообразное седло. Такое соединение хвостовика с колонной не имеет необходимой герметичности и, будучи залито цементным раствором, не обеспечивает подвижности хвостовика при из менении температуры в скважине.A known method of sealing the annulus in boreholes during the descent of the liner of the casing strings by rigidly connecting the liner with the string or by fitting the upper liner of the liner on a cone-shaped saddle. Such a connection of the shank with the column does not have the necessary tightness and, being filled with cement mortar, does not ensure the mobility of the shank when the temperature in the well changes.

Предлагаемый способ герметизации межтрубного пространства 1з переходной зоне ступенчатых обсадных колонн буровых скважин упрощает производство работ и полностью обеспечивает уплотнение зоны перехода колонны большого диаметра к меньшему. Это достигаетс  путем установки на верхнем конце хвостовика герметизирующего устройства , позвол ющего верхнему концу колонны меньшего диаметра перемещатьс  вверх и вниз без нарушени  герметичности соединени .The proposed method of sealing the annulus 1z of the transition zone of the stepped casing strings of boreholes simplifies the work and completely seals the transition zone of a large-diameter string to a smaller one. This is achieved by installing a sealing device at the upper end of the shank, which allows the upper end of the smaller diameter column to move up and down without breaking the joint.

На чертеже показано устройство дл  осуществлени  предлагаемого способа. Прин ты условные обозначени : / - обсадна  труба, 2 бурильные трубы, .3 - экстрактор, 4 - переводник, 5 - щпильки, 6 воронка, 7 - кожух, S - уплотнители резиновые, 9 - распорное кольцо , 10 - патрубок, 11 - зажимна  гайка, 12 - муфта, 13 - ниппель, 14 - резинова  прокладка, 15 - муфта с левой резьбой.The drawing shows a device for carrying out the proposed method. Legend: / - casing pipe, 2 drill pipe, .3 - extractor, 4 - sub, 5 - studs, 6 funnel, 7 - casing, S - rubber seals, 9 - spacer ring, 10 - spigot, 11 - clamping nut, 12 - coupling, 13 - nipple, 14 - rubber gasket, 15 - coupling with left-hand thread.

После спуска хвостовика, заливки цементным раствором его нижней части, отсоединени  и подъема бурильных труб, в скважину спускают герметизирующее устройство, которое состоит из патрубка W. снабженного эластичными уплотн ющими кольцами 8. Кольца в момент спуска наход тс  в сжатом состо нии. Сжатое состо ние колец достигаетс  при помощи пресса путем надевани  на них кожуха 7. Кожу.ч 7 приварен верхней кромкой к экстрактору 5.After lowering the shank, pouring the lower part of the cement mortar, disconnecting and lifting the drill pipes, the sealing device is lowered into the well, which consists of a pipe W. fitted with elastic sealing rings 8. The rings are compressed at the moment of descent. The compressed state of the rings is achieved by using a press by putting a casing 7 on them. Leather 7 is welded by the upper edge to the extractor 5.

После посадки на место герметизирующего устройства и присоеди нени  его к хвостовику, т нут бурильные трубы вверх. При этом переAfter landing the sealing device and attaching it to the shank, pull the drill pipes up. At the same time

SU671838A 1960-06-30 1960-06-30 The method of sealing intertube space during the descent of the liner casing in boreholes SU135054A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU671838A SU135054A1 (en) 1960-06-30 1960-06-30 The method of sealing intertube space during the descent of the liner casing in boreholes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU671838A SU135054A1 (en) 1960-06-30 1960-06-30 The method of sealing intertube space during the descent of the liner casing in boreholes

Publications (1)

Publication Number Publication Date
SU135054A1 true SU135054A1 (en) 1960-11-30

Family

ID=48291394

Family Applications (1)

Application Number Title Priority Date Filing Date
SU671838A SU135054A1 (en) 1960-06-30 1960-06-30 The method of sealing intertube space during the descent of the liner casing in boreholes

Country Status (1)

Country Link
SU (1) SU135054A1 (en)

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