Show metadata Hide metadata

(19)

(11)

2 091 563

(13)

(51)

IPC

(21) (22)

Application

95112606/03, 1995-07-15

(22)

Actual filing date

1995-07-15

(45)

Published

1997-09-27

(72)

Inventor

Kamil'Janov T.S.Allenov A.A.

(73)

Holder

Al'Met'Evskoe Upravlenie Po Povysheniju Nefteotdachi Plastov I Kapital'Nomu Remontu Skvazhin

INTERNAL RELEASING SPEAR Russian patent published in 1997 - IPC

Abstract RU 2091563 C1

FIELD: devices for retrieving from well of pipes by taking hold of their internal part. SUBSTANCE: the offered spear has mandrel, catching bushing, guide tip, central through hole. Spear has stop, collet conjugated with taper surface of carrying mandrel. Upper part of collet is connected with nut movable along carrying mandrel. EFFECT: higher efficiency. 1 dwg

Similar patents RU2091563C1

Title	Year	Author	Number
PACKER	1993	Takhautdinov Sh.F. Slivchenko A.F. Sidorov L.S.	RU2057896C1
ELECTROMECHANICAL PACKER	1993	Kamil'Janov T.S. Petrov A.G. Takhautdinov A.M.	RU2087672C1
DEVICE FOR INTERVAL-AFTER-INTERVAL PRESSURE-TESTING OF PIPE STRINGS	1996	Kamil'Janov T.S. Petrov A.G. Takhautdinov Sh.F. Farkhutdinov R.G.	RU2144606C1
DEVICE FOR CUTTING PIPES IN WELL	1992	Illarionov P.A.	RU2012771C1
WIRE-LINE PACKER	0	Kamilyanov Timerbaj Sabiryanovich Gilfanov Nukh Khisamovich Akhmetshin Shamsiakhmet Akhmetovich	SU1789034A3
FISHING TOOL	0	Nikolaev Gennadij Stepanovich	SU1810483A1
OUTSIDE SPEAR	0	Antamanov Vladimir Sergeevich Silaev Aleksandr Vladimirovich Silaev Vladimir Ivanovich Antamanov Sergej Ivanovich	SU1677254A1
VALVE ARRANGEMENT FOR SUCKER-ROD PUMPS	0	Evlampev Nikolaj Mikhajlovich	SU1476109A1
BOREHOLE SHUTOFF VALVE	0	Gabdullin Rafagat Gabdelvalievich	SU945386A1
HOLE-BOTTOM SLIME AND METAL TRAP	0	Slivchenko Anatolij Fedorovich Kamilyanov Timur Sabiryanovich	SU1191554A1

RU 2 091 563 C1

Authors

Kamil'Janov T.S.

Allenov A.A.

Dates

1997-09-27—Published

1995-07-15—Filed