OIL POOL DEVELOPMENT METHOD Russian patent published in 2007 - IPC E21B43/27 

FIELD: oil production, particularly methods for stimulating production by forming crevices or fractures using eroding chemicals.

SUBSTANCE: method involves selectively isolating highly-permeable reservoir intervals; forcing gas-liquid plug generated in reservoir with water, wherein the gas-liquid plug is created by alternate injection of neutral carbonate and gas-generation initiator catalyst in reservoir through injection well. The gas-generation initiator catalyst is injected before neutral carbonate injection in reservoir and after selective isolation of high-permeable reservoir intervals. The gas-generation initiator catalyst is solvent containing monocarboxylic acid fractions. The solvent is vegetable oil with high monocarboxylic acid content. Reservoir zone intervals are isolated by serial injection of fresh controllable elastico-viscous composition and supporting system composition in reservoir. The supporting system composition comprises aqueous flocculant solution and clay powder.

EFFECT: increased efficiency due to extended conformance and improved reservoir recovery.

3 cl, 2 dwg