LIGHT INSULATING BACKFILL Russian patent published in 2012 - IPC C09K8/467 

Abstract RU 2448999 C1

FIELD: chemistry.

SUBSTANCE: invention relates to construction and repair of oil and gas wells, and specifically to light insulating backfill used primarily to eliminate zones of disastrous lost circulation of flushing fluid when drilling and repairing oil and gas wells. The light insulating backfill, which contains oil well portland cement, aluminosilicate hollow microspheres, mud powder and water, further contains polyacrylamide, ecocell and calcium chloride, and the mud powder is low-colloid bentonite mud powder, with the following ratio of components, wt %: oil well portland cement 21.45-28.07; aluminosilicate hollow microspheres 5.35-9.85; low-colloid bentonite mud powder 5.63-9.14; polyacrylamide 0.43-0.56; ecocell 1.00-2.00; calcium chloride 5.22-8.49; water - the rest.

EFFECT: resistance of the material to erosion by water at the solidification phase, high rate of gaining plastic strength and optimum setting time.

2 tbl

Similar patents RU2448999C1

Title Year Author Number
WELLS HIGH INTENSITY ABSORPTION INTERVALS INSULATION METHOD AND AERATED SLURRY FOR ITS EXECUTION 2008
  • Fefelov Jurij Vladimirovich
  • Kuznetsova Ol'Ga Grigor'Evna
  • Chugaeva Ol'Ga Aleksandrovna
  • Devjatkin Aleksandr Mikhajlovich
RU2379474C2
CEMENTING MIXTURE 2023
  • Rechapov Danir Akhatovich
  • Flyag Natalya Vladimirovna
  • Senyushkin Sergej Valerevich
  • Permitin Andrej Gennadevich
RU2807721C1
HIGH-STRUCTURE GROUTING MIXTURE 2011
  • Belousov Gennadij Andreevich
  • Skorikov Boris Mikhajlovich
  • Zhuravlev Sergej Romanovich
RU2474603C2
LIGHT GROUTING MORTAR 1998
  • Shcherbich N.E.
  • Krylov G.V.
  • Shtol' V.F.
  • Karelina N.E.
  • Frolov A.A.
  • Polubabkin V.A.
  • Sandakov A.V.
RU2151267C1
ACID-SOLUBLE LIGHTWEIGHT PLUGGING MATERIAL TO LIQUIDATE ABSORPTION IN PRODUCTIVE FORMATIONS 2014
  • Il'Jasov Sergej Evgen'Evich
  • Okromelidze Gennadij Vladimirovich
  • Garshina Ol'Ga Vladimirovna
  • Chugaeva Ol'Ga Aleksandrovna
  • Kuznetsov Sergej Aleksandrovich
  • Figil'Jantov Aleksandr Pavlovich
  • Bikmukhametov Al'Bert Il'Dusovich
  • Mjasnikova Aleksandra Vladimirovna
RU2575489C1
METHOD FOR PREPARATION OF GROUTING MORTAR FOR INSULATION AND PREVENTION OF EARTHFALLS IN CAVERNOUS PART OF SHAFT OF WELLS, AND MAINLY GENTLY SLOPING AND HORIZONTAL ONES 2012
  • Khvoshchin Pavel Aleksandrovich
  • Nekrasova Irina Leonidovna
  • Garshina Ol'Ga Vladimirovna
  • Okromelidze Gennadij Vladimirovich
  • Zubenin Andrej Nikolaevich
  • Timganov Artur Raifovich
  • Bikmukhametov Al'Bert Il'Dusovich
RU2489468C1
LIGHT-WEIGHT GASPROOF PLUGGING MATERIAL FOR CEMENTING OVER-PRODUCING INTERVALS (VERSIONS) 2012
  • Il'Jasov Sergej Evgen'Evich
  • Okromelidze Gennadij Vladimirovich
  • Chugaeva Ol'Ga Aleksandrovna
  • Kuznetsova Ol'Ga Grigor'Evna
  • Sazhina Elena Mikhajlovna
  • Zueva Nina Arkad'Evna
  • Dudorov Pavel Anatol'Evich
  • Utkin Denis Anatol'Evich
  • Kudimov Ivan Andreevich
  • Predein Andrej Aleksandrovich
  • Kuchevasov Sergej Ivanovich
  • Ivshin Aleksandr Viktorovich
RU2497861C1
METHOD FOR PREPARATION OF PLUGGING-BACK COMPOUND 0
  • Podgornov Valerij Mikhajlovich
  • Morkhedzh Akhmad Mokhamad
  • Vedishchev Igor Alekseevich
SU1756537A1
RAW MIXTURE FOR OBTAINING LIGHT-WEIGHT GROUTING MORTAR 2011
  • Oreshkin Dmitrij Vladimirovich
  • Beljaev Konstantin Vladimirovich
  • Semenov Vjacheslav Sergeevich
  • Kretova Ul'Jana Evgen'Evna
  • Makarenkova Julija Viktorovna
RU2472835C1
PREPARATION METHOD OF COMPOSITION FOR ISOLATION OF LOST-CIRCULATION ZONES IN WELL 2012
  • Sukhikh Jurij Mikhajlovich
  • Okromelidze Gennadij Vladimirovich
  • Garshina Ol'Ga Vladimirovna
  • Khvoshchin Pavel Aleksandrovich
  • Chugaeva Ol'Ga Aleksandrovna
RU2494228C1

RU 2 448 999 C1

Authors

Kokhan Konstantin Vladimirovich

Chugaeva Ol'Ga Aleksandrovna

Kuznetsova Ol'Ga Grigor'Evna

Popov Semen Georgievich

Dates

2012-04-27Published

2010-12-13Filed