METHOD FOR SHUTTING-OFF LOST CIRCULATION ZONE Russian patent published in 1995 - IPC

Abstract RU 2030562 C1

FIELD: drilling of deep wells. SUBSTANCE: introduced into prepolymer of urethane series is bentonite and let stand up to full hardening. Produced mass is ground to crumbles. Prepolymer and urethane series and bentonite are taken in the following amounts, mas.part.: prepolymer of urethane series 100; bentonite 20-100. Prepolymer of urethane series is used in form of HEISEL-OH IAN or BURETAN. Injection is carried-out with use of standard technology. EFFECT: higher efficiency. 2 cl, 4 tbl

Similar patents RU2030562C1

Title Year Author Number
REAGENT FOR TREATING DRILLING FLUIDS 1994
  • Galjan D.A.
  • Chadina N.P.
  • Levshin V.N.
  • Mikhajlov B.V.
RU2087512C1
REAGENT FOR TREATING DRILLING FLUIDS 1993
  • Selikhanovich A.M.
  • Chuprina G.A.
  • Olejnikov A.N.
RU2087515C1
METHOD OF TREATMENT OF BOTTOM-HOLE FORMATION ZONE 1995
  • Kovalenko P.V.
  • Povarov I.A.
  • Popov Ju.N.
RU2100585C1
REAGENT FOR TREATING CLAY DRILLING MUDS 0
  • Galyan Dinaida Aleksandrovna
  • Chuprina Galina Aleksandrovna
SU1361164A1
METHOD FOR PRODUCTION OF GROUTING MIXTURE 1992
  • Tsytsymushkin P.F.
  • Karimov N.Kh.
  • Khajrullin S.R.
  • Kudrjashova Z.N.
  • Agzamov F.A.
  • Belov I.V.
  • Shamsiev R.A.
RU2026960C1
DRILLING MUD 1989
  • Galjan D.A.
  • Chernjakhovskij A.I.
  • Romanov V.V.
  • Chadina N.P.
  • Bich F.F.
  • Obeshchenko G.K.
SU1678048A1
GROUTING MORTAR FOR LINING WELLS IN SALT-BEARING DEPOSITS 1993
  • Tsytsymushkin P.F.
  • Khajrullin S.R.
  • Kudrjashova Z.N.
  • Goronovich S.N.
  • Mikhajlov B.V.
  • Morozov Ju.D.
  • Karimov N.Kh.
RU2042786C1
COMPOSITION FOR TREATMENT OF SULFATED CARBONATE SEAM 1989
  • Tsinberg M.B.
  • Akhmetov V.N.
  • Pastukhova G.V.
  • Surgina T.A.
SU1579120A1
GROUTING MORTAR FOR CEMENTING OIL AND GAS WELLS 1992
  • Tsytsymushkin P.F.
  • Karimov N.Kh.
  • Khajrullin S.R.
  • Kudrjashova Z.N.
  • Belov I.V.
  • Shamsiev R.A.
RU2026959C1
METHOD OF MICROORGANISMS DETECTION 1990
  • Tsinberg M.B.
  • Dobrynina L.F.
SU1720281A1

RU 2 030 562 C1

Authors

Selikhanovich A.M.

Goronovich S.N.

Mnatsakanov A.V.

Rudnitskij A.V.

Dates

1995-03-10Published

1992-09-07Filed