FIELD: oil-and-gas industry.
SUBSTANCE: set of invention relates to oil production in oil occurrence in sands or clays. Proposed method comprises the following steps. Penetrating from, at least, one location to near-surface bed stressed by overlaying bed and containing heavy oil and, at least, one rock. Processing said near-surface bed from said one location by increasing fluid pressure in near-surface bed. Carrying out primary extraction, using increased fluid pressure in near-surface bed from said one location, of one rock and at least, one fluid, i.e. extraction of suspension from near-surface bed to improve access to near-surface bed. Extracting heavy oil from near-surface bed at least one location using said improved access.
EFFECT: higher efficiency.
25 cl, 7 dwg
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