SOLID-PHASE COMPOSITION FOR HYDROGEN SULFIDE NEUTRALIZATION Russian patent published in 2008 - IPC C09K8/54 

FIELD: gas and oil production industry.

SUBSTANCE: invention relates to chemical compositions used in treatment of holes, among them absorbing holes, for decreasing hydrogen sulfide content in gaseous space in carrying out repairing, research and other works. Invention proposes a solid-phase composition for hydrogen sulfide neutralization that comprises the following components, wt.-%: surfactant, 0.5-7.4; polyvinyl acetate, 26.6-5.7 and water glass, 2.6-4.6 as reagent-stabilizing agents of foam, and sodium nitrite and sulfamic acid taken in stoichiometric ratio with respect to each component in reaction with hydrogen sulfide, the balance. Proposed composition can be used in gas and oil production industry under normal and low seam pressures. Invention provides development of effective and simple in preparing and technological composition used in neutralization of hydrogen sulfide in holes, enhancing neutralizing activity of hydrogen sulfide neutralizing agent with respect to hydrogen sulfide in seam space both in gaseous and dissolved state.

EFFECT: improved and valuable properties of composition.

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