METHOD OF ELIMINATING ZONES OF LOSS IN WELL Russian patent published in 2009 - IPC E21B33/138 C09K8/467 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil and gas industry, particularly to methods of eliminating zones of loss in well and can be implemented for isolation of zones of loss of formation at capital repair of producing and pressure wells and also at regulating profile injection capacity of pressure wells and isolation of water floods in producing wells. According to the method of eliminating zones of loss in a well liquid glass is successively pumped into the well with density of 1360-1450 kg/m³, then liquid glass with density of 1100-1200 kg/m³, and silicon-organic reagent ACOR-BN 102 with density of 980-1100 kg/m³, with following fixing in bed water. The composition is used at a following ratio of components, volume %: liquid glass with density of 1360-1450 kg/m³ 10-20, liquid glass with density of 1100-1200 kg/m³ 10-20, silicon-organic reagent ACOR-BN 102 with density of 980-1100 kg/m³ 60-80. Between liquid glass and silicon-organic reagent ACOR-BN 102 a buffer of fresh water is pumped.

EFFECT: eliminating intensive zones of loss in well.

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