It was developed for use in oil production stimulation processes for acid treatment of producing oil and gas wells in carbonate and terrigenous reservoirs with the purpose of increasing reservoir productivity and cleaning bottomhole against technogenic clogging.
This composition can be used in most of the water-based solutions and in mineralized mediums, to be injected directly to the process cycle. It is prepared as a concentrate which can be diluted with fresh water to commercial concentration before application. Efficient concentration in the solution is generally selected as 1:1 ratio by volume, depending on the required result, which affected by the factors like: mineral composition of rocks and deposits, desirable reaction rate and effective treatment depth, reservoir temperature and process solution composition.
highly soluble in water without use of special-purpose equipment
dilution time is no more than 10-15 minutes
low rate of reaction with a rock to ensure deep penetration through the formation
ability to stabilize diluted ferrous ions during dilution of ferrum containing rocks and sediments
ability to efficiently prevent formation of stable high viscosity acid-oil emulsions
high ability to penetrate the pore space of the perforated portions of the reservoir due to low interfacial tension at “acid compound - oil” boundary, high surface activity
high solubility in respect of salts and petroleum hydrocarbons
high dispersive ability in respect to asphalt, resin, and paraffin deposits
effective dispersion of clays and polymer remains