SU451832A1 - Chisel for drilling wells in high gas bearing formations - Google Patents

Chisel for drilling wells in high gas bearing formations

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Publication number
SU451832A1
SU451832A1 SU1885138A SU1885138A SU451832A1 SU 451832 A1 SU451832 A1 SU 451832A1 SU 1885138 A SU1885138 A SU 1885138A SU 1885138 A SU1885138 A SU 1885138A SU 451832 A1 SU451832 A1 SU 451832A1
Authority
SU
USSR - Soviet Union
Prior art keywords
chisel
high gas
gas bearing
drilling wells
bearing formations
Prior art date
Application number
SU1885138A
Other languages
Russian (ru)
Inventor
Игорь Петрович Чеботков
Вячеслав Григорьевич Рожков
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 filed Critical
Priority to SU1885138A priority Critical patent/SU451832A1/en
Application granted granted Critical
Publication of SU451832A1 publication Critical patent/SU451832A1/en

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  • Earth Drilling (AREA)

Description

(54) ,ЮЛОТО ДЛЯ БУРЕНИЯ СКВАЖИН В ВЫСОКОГАЗОНОСИЫХ ПЛАСТАХ(54), YULOTO FOR DRILLING WELLS IN HIGH-ALTITUDED LAYERS

Изобритение относитс  к бурению скважин в плас.тах с повышенным содержащем газа, 1де процесс бурени  скважин сонровождаетс  целым р дом специфических  влений, наиболее неблагоиринтцыми из которых  вл ютс  микровыброс .ы, Изь есГ11Ы долота дл  бурени  скважин в высокогазопоеных цластах, содержащие корпус и запорный орган, установленный в его полости Такие долота позвол ют с помошью запорного органа перекрывать водопровод щий канал при микровыбросах, что не дает последним развивать .с  в полость бурового става. Однако микрОиыбросы могут развиватьс  в кольцевой зазор между стенками скважины и буровых штапг. При этом начальный участок бурового става также может заклиниватьс , что приводит к вынужденному прекращению бурени . С целью повышени  эффективности работы долота его запорный орган выполнен с лопаст ми , снабжен дебалансной вставкой, укрепленной в егх) периферийной части, и свободно ; установлен на вертикальном штифте, который зак)еплен в глухом пазу, выполненном в теле корпуса долота. Такое конструктивное решение позвол ет пр.дотвратить заклинивание начального участка бурового става при микровыбросах путем сообщени  буровому наконечнику в процессе бурени  вибраций, На фиг, 1 схематически показано предлагаемое долото в процессе нормального бурени  на фиг, 2 - то же, при микрооыбро(;е . Долото содержит корпус 1, в полости которого установлен запорный орган 2. Запорный орган выполнен с лопаст ми 3 в его верхней части, имеет дебалансную вставку 4, укренлеппую в его периферийной части и выполненную из материала с удельным весом, отличающимс  от удельного веса материала, из которого выполнен запорный орган. В теле корпуса долота выполнен глухой паз, в котором вертикальпо закреплен штифт 5, на торце которого установлен шарик 6. В нижней части корпуса долота имеютс  отверсти  7 дл  подачи промывочной жидкости на забой скважины и породоразрушаюшие резцы 8. Корпус долота навинчиваетс  на ниппель 9, посредством которого долото укрепл етс  на буровом ставе.The invention relates to the drilling of wells with high gas content, and in the course of well drilling a variety of specific phenomena are produced, the most adverse of which are micro outliers, drill bits in high-altitude rock formations containing body and mineral oil installed in its cavity. Such bits allow using the valve body to block the water supply channel during micro outliers, which does not allow the latter to develop into the cavity of the drill stem. However, microdischarges can develop into an annular gap between the walls of the well and drilling shtag. In this case, the initial section of the drill rod may also become jammed, which leads to the forced cessation of drilling. In order to increase the efficiency of the bit, its locking member is made with blades, equipped with an unbalance insert, fixed in its peripheral part, and freely; mounted on a vertical pin, which is closed in a hollow groove made in the body of the bit body. Such a constructive solution allows to prevent jamming of the initial section of the drill rod during micro outburst by informing the drill tip during the drilling of vibrations. FIG. 1 schematically shows the proposed bit during normal drilling in FIG. The bit includes a housing 1, in the cavity of which a locking member 2 is installed. The locking member is made with blades 3 in its upper part, has an unbalance box 4, ukrenleppuyu in its peripheral part and made of a material with specific catfish, different from the specific weight of the material of which the valve is made. There is a blind groove in the body of the bit body, in which the vertical-pin is fixed to the pin 5, on the end of which a ball 6 is installed. wells and rock-cutters 8. The bit body is screwed onto the nipple 9, by means of which the bit is fixed on the drill rod.

SU1885138A 1973-02-19 1973-02-19 Chisel for drilling wells in high gas bearing formations SU451832A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1885138A SU451832A1 (en) 1973-02-19 1973-02-19 Chisel for drilling wells in high gas bearing formations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1885138A SU451832A1 (en) 1973-02-19 1973-02-19 Chisel for drilling wells in high gas bearing formations

Publications (1)

Publication Number Publication Date
SU451832A1 true SU451832A1 (en) 1974-11-30

Family

ID=20543114

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1885138A SU451832A1 (en) 1973-02-19 1973-02-19 Chisel for drilling wells in high gas bearing formations

Country Status (1)

Country Link
SU (1) SU451832A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2479709C1 (en) * 2011-12-16 2013-04-20 Николай Митрофанович Панин Drilling bit of wells in high-gas-bearing formations
RU2479707C1 (en) * 2011-12-16 2013-04-20 Николай Митрофанович Панин Drilling bit of wells in gas-bearing formations
RU2482255C1 (en) * 2012-01-26 2013-05-20 Николай Митрофанович Панин Drilling bit
RU2482256C1 (en) * 2012-01-26 2013-05-20 Николай Митрофанович Панин Bit for drilling of wells in highly gas bearing beds
RU2491408C1 (en) * 2012-05-11 2013-08-27 Николай Митрофанович Панин Drill column for drilling of wells in highly gas-bearing beds

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2479709C1 (en) * 2011-12-16 2013-04-20 Николай Митрофанович Панин Drilling bit of wells in high-gas-bearing formations
RU2479707C1 (en) * 2011-12-16 2013-04-20 Николай Митрофанович Панин Drilling bit of wells in gas-bearing formations
RU2482255C1 (en) * 2012-01-26 2013-05-20 Николай Митрофанович Панин Drilling bit
RU2482256C1 (en) * 2012-01-26 2013-05-20 Николай Митрофанович Панин Bit for drilling of wells in highly gas bearing beds
RU2491408C1 (en) * 2012-05-11 2013-08-27 Николай Митрофанович Панин Drill column for drilling of wells in highly gas-bearing beds

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