METHOD OF FORMING DIRECTED VERTICAL OR HORIZONTAL FRACTURE IN FORMATION FRACTURING Russian patent published in 2001 - IPC

FIELD: development of oil, gas and gas-condensate deposits, particularly, deposits with deteriorated reservoir properties and deposits at late stage of their development. SUBSTANCE: method includes sidetracking from vertical well of two horizontal bores, their perforation, injection under pressure of fracturing fluid and sand-carrier fluid. Horizontal bores are made parallel in the same vertical or horizontal plane. Horizontal bores are perforated in direction toward each other and in plane running through both bores. Then fracturing fluid is injected into both horizontal wells. EFFECT: provision of formation of directed vertical or horizontal fracture of preset height (width) and denature from bottom-hole formation zone of vertical well. 1 dwg