HEAT-RESISTANT GAS-GENERATING ACID-PRODUCING HIGH-STRENGTH FUEL FOR DOWNHOLE DEVICES Russian patent published in 2016 - IPC C06D5/06 C06B29/22 C09K8/60 E21B43/27 

FIELD: chemistry.

SUBSTANCE: invention relates to production of heat-resistant gas-generating acid-forming high-strength fuels for downhole apparatuses of mechanism of action: cartridge-pressure accumulators, powder generator of pressure, bullet and cumulative perforators, etc. for thermobaric and chemical action on bottom-hole zone in order to increase productivity of oil wells. Heat-resistant gas-generating acid-forming fuel for downhole apparatuses includes an oxidant-ammonium perchlorate or potassium perchlorate, or a mixture of ammonium perchlorate with potassium perchlorate, combustible binder compound having α-oxide cycle-product of interaction of epichlorohydrin with diphenylol propane in its chain, or product of interaction of epichlorohydrin with oligodiene, or a product of reaction of epichlorohydrin with diethylene glycol or triethylene glycol or mixture thereof, as well as a curing agent - amine-type compound. Fuel can also contain dibutyl phthalate, di-(2-ethylhexyl)-sebacinat, di-(2-ethylhexyl)-phthalate or EDOS plasticizer; aluminium; ammonium chloride; compound containing a fluorine atom in the molecule, for example polytetrafluoroethylene, polytrifluorochloroethylene or lithium fluoride; technical carbon; as a process additive, for example, an emulsifying agent of brand N-23 or 1,2-dialkylglyceroholil-phosphate; Silicon oxide; pigment or dye.

EFFECT: invention is aimed at creation of heat-resistant gas-generating acid-forming high-strength fuel with improved strength and heat resistance, increased content of acid-producing compounds - chloride and fluoride hydrogen in the combustion products.

13 cl, 2 tbl, 23 ex