HimStab Fe

Iron stabilizer

(TU) 2458-103-14023401-2014

HimStab Fe is a multicomponent composition of reducing agents. The reagent is designed to control the content of trivalent iron in the acid composition and the products of its treatment. Iron precipitates from the solution as a fine dispersed powder (oxides of changeable composition) at pH value over 3.2 and is capable to considerably decrease reservoir permeability. Besides, the trivalent iron ions can act as water-oil emulsions effective stabilizer.
HimStab Fe iron stabilizer is delivered in 25 kg bags

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Purpose

• It is effective when used in hydrochloric acid of various concentration;
• it forms no sediments with brine water and formation fluids;
• it prevents stable emulsions;
• it prevents insoluble sediments, such as hydroxides, ferric sulphides, and other products of interaction between the iron ions and the formation fluid components;
• it is easy to use: the process solution preparation imply HimStab Fe stabilizer adding to hydrochloric acid solution.

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Recommendations to application

HimStab Fe iron stabilizer restores the trivalent Ferric ions (Fe3+) to its Ferrous ions (Fe2+). As a result the iron ions do not affect the formation fluid. The stabilizer prevents sedimentation and viscous emulsions, with the trivalent iron present, under acid reaction with rock. Required concentration of the stabilizer is 0.8 to 1.0% (5,000 ppm of iron) and 0.5 to 0.7% (2,500 ppm of iron). Compatibility tests should be carried before its application.