METHOD FOR ELIMINATION OF INTERNAL GAS SHOWINGS IN WELL Russian patent published in 2009 - IPC E21B33/138 C09K8/467 

FIELD: oil and gas production.

SUBSTANCE: invention is related to oil and gas production industry, namely, to operation of gas and gas-condensate wells. Method for elimination of internal gas showings in well includes pumping of highly viscous mix - VM - into well in internal space with VM heating by means of mobile steam plant, body of pipe head and near-head part of conductor, volume of VM is selected provided that it fills all free internal space, which is defined based on given equation, and VM used is a composition obtained after mixing and heating of components No.1, No. 2 and No. 3 introduced into container with their following ratio, wt %: component No. 1, containing epoxy-polyurethane polymer EPU-01-B, urethane rubber PEFA-3A, dioctyl phthalate or methyl trichlorosilane, 40.0-50.0, component No. 2, containing polyethyelene polyamine and polyacrylamide L-20, 9.0-22.0 and component No. 3, containing plugging Portland cement PCT 1-50, silica-alumina microspheres and polyvinyl chloride, the rest.

EFFECT: invention provides for conditions of reliable elimination of internal gas showings at minimum capital and operational expenses, and also expansion of application field in process of elimination of internal and annulus gas showings.

1 ex, 1 dwg