FORMATION TREATMENT METHOD Russian patent published in 2007 - IPC E21B43/263 

FIELD: oil extractive industry.

SUBSTANCE: method includes performing perforation in interval of formation being treated, installing section charge in perforation interval, burning gunpowder sections of charge with production of hot gunpowder gases, creating a pressure impulse affecting the formation, monitoring combustion of charge sections in real time mode and registering charge operation mode characteristics. In accordance to invention, unprocessed formation sections are involved in extraction process at deposits at later extraction stages with hard to extract resources. For that purpose, hydro-dynamically isolated section or sections of deposit are selected and each section is treated in turns, and for that density of well network is determined, wells are selected for treating the bed, section charges with monitoring electronic blocks are delivered into all selected section wells and charge operation mode characteristics are registered, and synchronous treatment of inter-well space of formation being extracted is performed in selected wells. In all wells combustion of charge sections is monitored in real time mode, temperature and pressure are registered in native well and, also, pressure impulses incoming from all wells, where synchronous treatment of inter-well space took place, are measured. All pressure impulses are compared and marked with time of arrival, speed of passage of pressure impulses between every well is computed, and on basis of impulse amplitudes - fading thereof in inter-well space. These data are applied to well location plan and local sections with least well penetrability are selected. Repeated synchronous treatment of bed is performed in selected wells in such a way, that pressure impulses from all wells arrive at selected local section of bed at the same time. Repeated registration of pressure impulses by electronic blocks is performed and on basis of change of aforementioned measurements in first and second treatments, change of penetrability in inter-well bed space and necessity of further treatments of bed are evaluated.

EFFECT: possible processing of formation in inter-well space for increasing penetrability of formation, increasing oil yield coefficients for formations of varying penetrability characteristics.

2 cl