FIELD: gas industry.
SUBSTANCE: invention relates to production of gas, namely, to solid chemical reagents for foaming and removal of liquid from wells of gas deposits and protection of downhole equipment against corrosion. Solid-phase composition for foaming and removal of formation fluid from low-yield gas wells and protection of downhole equipment from corrosion, containing polyethylene glycol-4000 nonionic surfactant, additionally contains an anionic surfactant – sodium alpha-olefin sulphonate, alkylbenzene sulfonate and a corrosion inhibitor – urotropin, with the following ratio of components, wt%: polyethylene glycol-4000 60.0, sodium tripolyphosphate 5.0, alkylbenzene sulfonate 30.0, urotropin 5.0.
EFFECT: effective foaming and removal of liquid to maintain stable operation of low-yield gas wells and additional effective protection of downhole equipment against corrosion.
1 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITE COMPOSITION FOR REMOVING STRATAL FLUID OF INCREASED RIGIDITY FROM LOW-YIELD GAS AND GAS-CONDENSATE FIELDS | 2018 |
|
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| SOLID FOAM-FORMING COMPOSITION FOR FOAMING AND REMOVAL OF FORMATION FLUID FROM MARGINAL WELLS AND MAINTENANCE OF STABLE OPERATION OF GAS WELLS | 2019 |
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| FOAMING MIXTURE OF PROLONGED ACTION FOR FOAMING AND REMOVING PRODUCED WATER FROM GAS FIELDS WELLS IN ORDER TO MAINTAIN THEIR STABLE OPERATION | 2022 |
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| PROCESS BLEND FOR REMOVAL OF FORMATION FLUID CONTAINING HIGHLY MINERALISED PRODUCED WATER AND HYDROCARBON CONDENSATE FROM GAS AND GAS-CONDENSATE WELLS | 2015 |
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| COMPOSITION OF SURFACTANT TO MAINTAIN STABLE OPERATION OF WATER-FLOODED GAS AND GAS CONDENSATE WELLS UNDER CONDITIONS OF FALLING PRODUCTION | 2018 |
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| TECHNOLOGICAL MIXTURE FOR REMOVING RESERVOIR LIQUID CONTAINING HIGH-MINERALIZED RESERVOIR WATER AND CONDENSATE GAS FROM GAS AND GAS CONDENSATE WELLS | 2016 |
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| SOLID-PHASE COMPOSITION FOR PROTECTING INTRA-WELL-DRILLING EQUIPMENT AGAINST CORROSION | 2005 |
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| COMPOSITION FOR PREVENTION OF HYDRATE SALT DEPOSITIONS AND CORROSION | 2011 |
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RU2504571C2 |
