METHOD FOR HYDROCARBON FIELD EXPLOITATION Russian patent published in 2007 - IPC E21B43/00 E21B43/26 

FIELD: gas production industry, particularly hydrocarbon field exploitation at final stage of development of massive fields having thick cap and bottom water actively penetrating into effective pay.

SUBSTANCE: method involves drilling horizontal wells; perforating the wells and forming fissures by hydraulic reservoir fracturing; drilling horizontal well system in effective cap over effective pay zones having residual hydrocarbon reserves during exploitation of field having active bottom water at final development stage; performing several serial hydraulic fractures over effective pay in horizontal well bore section beginning from well bore end remote from vertical well axis; creating fissures, which communicate horizontal well bore with effective pay, wherein during each next hydraulic fracturing each perforated section used for hydraulic fracturing execution is isolated from remainder string section by packers installation.

EFFECT: increased output of well, considerable working depression decrease, possibility to produce gas from effective pay up to roof achievement and prevention of effective pay rock damage.

1 dwg