METHOD FOR EXTRACTING HYDROCARBON DEPOSITS INCLUDING COMPLEX PHYSICAL BED STIMULATION Russian patent published in 2007 - IPC E21B43/16 

FIELD: oil extractive industry, possible use during extraction of oil deposits, in particular at later stages of extraction of watered deposits with complicated geological conditions.

SUBSTANCE: method includes forcing displacement agents into force wells and extraction of bed fluid through product wells, research of natural fissuring of geological environment of bed, initiation and creation of additional channels for transfer of mass into wells. In accordance to invention during research of natural fissuring, zones of heightened fissuring and heightened strain of bed environment are detected across the area of deposit. in aforementioned zones or close to these product wells are selected and additional wells are drilled. Created and initiated are wave channels for energy-mass transfer on productive intervals of given wells in beds by means of successive feeding of physical energy impulses into bed. Performed simultaneously is recording of acoustic emission and/or electromagnetic emission signals received from bed, their fractal analysis, construction of volumetric attractors of condition of structure of geological environment in real time mode with continuous computer monitoring of strain, fluid saturation, fluid pressure, change of condition of formation and development of channels of energy-mass transfer in bed by groups of wells. On basis of monitoring of phase of maximal local instability of formation condition, moment of injection of each following impulse is assigned and its energy and frequency parameters are altered until receipt of response from environment.

EFFECT: increased efficiency of extraction due to purposeful selection of wells and realization of direct monitoring and operative control over parameters of processing, and also decreased energy costs and expanded functional capabilities of method.

19 cl, 1 ex, 1 dwg