PROCESS OF DEVELOPMENT OF DEPOSIT OF HYDROCARBONS Russian patent published in 2004 - IPC

FIELD: oil production. SUBSTANCE: invention refers to development of oil field at latest stage, predominantly under conditions of complex geology characterized by zonal and/or stratified nonuniformity of deposit with high coefficient of disintegration. Process includes isolation of production and injection wells characterized by indices of fluid output or fluid intake dropped beneath permissible levels. Isolated wells are in turn shut down and reaction of operating production wells to shut-down of each isolated well is controlled by amount and/or rate and flooding and/or aeration of extracted fluids. Zones of operational producing wells are delineated in deposit. Operational producing wells in delineated zones are stimulated by blasts carried out in turn in assigned wells bordering on outline of each isolated zone. Reflected signals of each blast are recorded with exposure of zones of enhanced pressure on their basis. Boundaries of zones outlined before are made more exact by area and depth. Blasts on one side of each outline defined more accurately and/or from different sides are executed with simultaneous execution of portion of blasts with their acceleration or deceleration relative to others. In this case all blasts are carried out with localization of their energy towards productive formation after boundaries of outlines were defined more exactly. EFFECT: increased efficiency of development of deposit of hydrocarbons thanks to addressed action on stagnation, low-permeable zones or formations with difficult filtration with provision for drainage of their fluids towards zone of active filtration, possibility to render addressed action in process of development more accurate with increase of utilization factor of energy action. 3 dwg