ASSEMBLY FOR DRILLING SIDE BOREHOLES FROM CASED WELLS Russian patent published in 2007 - IPC E21B7/08 

Abstract RU 2291268 C2

FIELD: engineering of technical means for making additional boreholes in existing inclined wells.

SUBSTANCE: assembly for drilling side boreholes from cased wells, lowered on a column of drilling pipes, contains deflector wedge, connected through sub to stopping anchor, which is made in form of longitudinally corrugated pipe, means for azimuth orientation of wedge inside well borehole, and also means for connecting aforementioned elements to form single device. Invention is special because for influx of working liquid from column of drilling pipes into hollow of stopping anchor pipe assembly is provided with hydraulic duct, which is connected to drilling pipe channel through means for azimuth orientation of deflector wedge, made in form of valve-piston unit, transferring working pressure for stopping anchor inside the well in position of given angular orientation of deflector wedge device, while hydraulic drive by means of telescopic moveable packed connection is engaged with milling device, connected to deflector wedge by means of shear element.

EFFECT: increased reliability and decreased laboriousness during operation.

10 cl, 6 dwg

Similar patents RU2291268C2

Title Year Author Number
SIDETRACK KICKOFF TOOL 2012
  • Samigullin Valerij Khakimovich
  • Sabirov Marat Gafurovich
  • Garaev Nafis Anisovich
  • Abdrakhmanov Gabdrashit Sultanovich
RU2533392C2
FACILITY FOR DRILLING SIDE BOREHOLES FROM WELL 2008
  • Ibragimov Nail' Gabdulbarievich
  • Zaljatov Marat Marsovich
  • Akhmadishin Farit Foatovich
  • Mukhametshin Almaz Adgamovich
  • Kashapov Il'Giz Kamaevich
  • Ismagilov Marat Azatovich
RU2366793C1
WEDGE-SHAPED DIVERTER 2011
  • Mukhametshin Almaz Adgamovich
  • Akhmadishin Farit Foatovich
  • Ismagilov Marat Azatovich
  • Ilalov Rustam Khisamovich
  • Osnos Vladimir Borisovich
RU2477779C1
DIVERTING WEDGE FOR SPUDDING OF OFFSHOOTS FROM WELL 2011
  • Ibragimov Nail' Gabdulbarievich
  • Zaljatov Marat Marsovich
  • Akhmadishin Farit Foatovich
  • Mukhametshin Almaz Adgamovich
  • Ismagilov Marat Azatovich
RU2484231C1
WEDGE-LIKE DIVERTER FOR DRILLING OF SIDE HOLES 2011
  • Mukhametshin Almaz Adgamovich
  • Akhmadishin Farit Foatovich
  • Kashapov Il'Giz Kamaevich
  • Ismagilov Marat Azatovich
  • Osnos Vladimir Borisovich
RU2469172C1
DEVICE FOR DRILLING SIDE BOREHOLES FROM CASED WELL 2004
  • Gibadullin N.Z.
  • Giljazov R.M.
  • Nizamov D.I.
  • Samigullin V.Kh.
  • Mikhajlov A.N.
  • Jumashev R.Kh.
RU2263196C1
DEFLECTING DEVICE FOR DRILLING OF BRANCH HOLES 2011
  • Mukhametshin Almaz Adgamovich
  • Akhmadishin Farit Foatovich
  • Kashapov Il'Giz Kamaevich
  • Ismagilov Marat Azatovich
  • Osnos Vladimir Borisovich
RU2472913C1
DEFLECTION DEVICE 2013
  • Zajnullin Al'Bert Gabidullovich
  • Polenok Pavel Vladimirovich
  • Malyshev Sergej Gennad'Evich
  • Petlin Jurij Ivanovich
  • Moskovkin Vladimir Il'Ich
RU2539494C2
SIDE HOLE DRILLING DEVICE 2011
  • Mukhametshin Almaz Adgamovich
  • Kashapov Il'Giz Kamaevich
  • Ismagilov Marat Azatovich
  • Osnos Vladimir Borisovich
  • Petrov Sergej Pavlovich
RU2469171C1
CASING WINDOW CUTTING SYSTEM (VARIANTS) 2023
  • Timashev Artur Ramilevich
  • Giniiatullin Dinar Fagimovich
  • Salomatin Andrei Aleksandrovich
RU2800047C1

RU 2 291 268 C2

Authors

Kot Aleksandr Georgievich

Dates

2007-01-10Published

2005-02-08Filed