DISCONNECTING DEVICE FOR CEMENTED TAIL-PIECES Russian patent published in 1998 - IPC

Abstract RU 2101457 C1

FIELD: oil and gas production industry. SUBSTANCE: this relates to disconnecting devices used in cementation of tail-pieces in vertical, inclined and horizontal wells. Device has sleeve with internal taper thread and nipple with external taper thread. Made in sleeve and nipple are aligned through-slots in which stops are installed with pretension connecting sleeve with nipple. Sleeve slots at their inner side have crushable caps, and nipple slots at outer side are provided with centralizers with pockets for stops. EFFECT: high efficiency. 2 dwg

Similar patents RU2101457C1

Title	Year	Author	Number
DEVICE FOR COMPLETION OF WELL	1994	Shajakhmetov Sh.K. Zhzhonov V.G. Nenarokov S.Ju. Shajakhmetov A.Sh.	RU2087684C1
DISCONNECTING DEVICE FOR PIPE STRING	1996	Gabdullin R.G. Osnos V.B. Farkhutdinov R.G. Abdrakhimov T.Z.	RU2101458C1
DISENGAGING UNIT	1999	Ishkaev R.K. Gabdullin R.G. Strakhov D.V. Osnos V.B. Salakhova Z.R.	RU2151260C1
METHOD FOR SECONDARY OPENING OF PRODUCTIVE BED	1996	Shajakhmetov Sh.K.	RU2118445C1
WELL COMPLETION METHOD	1994	Shajakhmetov Sh.K. Zhzhonov V.G. Nenarokov S.Ju. Shajakhmetov A.Sh.	RU2083806C1
DISCONNECTING DEVICE	1998	Gabdullin R.G. Ishkaev R.K. Farkhutdinov R.G. Strakhov D.V. Osnos V.B.	RU2136840C1
DEVICE FOR DISCONNECTION OF PIPE STRING	1996	Gabdullin R.G. Osnos V.B. Strakhov D.V.	RU2113589C1
DEVICE FOR LINER CEMENTING IN WELL	1999	Gabdullin R.G. Ishkaev R.K. Strakhov D.V. Osnos V.B. Salakhova Z.R.	RU2161241C1
OUTFIT TO SHORE UP WALLS OF BOREHOLE	1999	Gabdullin R.G. Abdrakhmanov G.S. Farkhutdinov R.G. Strakhov D.V. Osnos V.B.	RU2164583C2
DEVICE FOR ISOLATION AND OPENING OF BEDS	1998	Gabdullin R.G. Strakhov D.V. Osnos V.B.	RU2137903C1

RU 2 101 457 C1

Authors

Shajakhmetov Sh.K.

Shajakhmetov A.Sh.

Kateev R.I.

Dates

1998-01-10—Published

1996-06-04—Filed