Method of treating the near-wellbore zone of the reservoir

A method for fracturing a near-wellbore formation zone of a geological reservoir comprising the following steps:

• a. injecting into a desired near-wellbore treatment zone of the reservoir a hydraulic fracturing fluid containing a mixture comprising granular magnesium and a catalyst;
• b. injecting into the near-wellbore treatment zone a combustive-oxidizing solution (COS);
• c. contacting the magnesium and the catalyst in the near-wellbore treatment zone with the COS;
• d. initiating an exothermic decomposition of the COS in the near-wellbore treatment zone to generate COS decomposition reaction gases without an explosion due to the catalyst and the catalyst reduces the temperature required to initiate the exothermic decomposition of the COS, to produce COS oxidation reaction gases and heat to cause a localized buildup of high pressure and high temperature, wherein the high pressure is sufficient to cause additional fracturing of the near-wellbore formation zone in the near-wellbore treatment zone;
• e. after the COS decomposition reaction is substantially complete, injecting an acidizing solution, into an area of additional fracturing;
• and
• f. producing from the reservoir to remove post-reaction products.

A method of treating a near-wellbore formation zone of a geological reservoir comprising the following steps:

• a. delivering a dry form of a nitrate salt with proppant to a desired treatment area within the near-wellbore zone;
• b. delivering a granular magnesium to the treatment area with proppant;
• c. delivering a catalyst to the treatment area;
• d. delivering a combustive-oxidizing solution (COS) to the treatment area, the COS capable of reacting with the magnesium;
• e. permitting the COS to react with the nitrate salt and the granular magnesium in the treatment area to increase the temperature and initiate an exothermic oxidation reaction of the COS, wherein the COS decomposes without an explosion due to the catalyst and the catalyst reduces the temperature required to initiate the exothermic decomposition of the COS to produce COS oxidation reaction gases and heat;
• f. creating a localized zone of high pressure and high temperature in the treatment area from the COS oxidation reaction gases and heat;
• and
• g. creating newly-formed fractures in the treatment area of the near-wellbore formation with the pressure resulting from the COS oxidation reaction gases.