Selective formation hydraulic fracturing in horizontal wells
New methods are discussed for receiving a higher ultimate oil and gas recovery factor from the water flooded hydrocarbon deposit or from the deposit having closely located WOC or WGC, as well as from the producing layers with a small petroleum bearing thickness. The existing methods for enhancement of oil and gas recovery factors are analyzed including their merits and drawbacks. A new technology is offered for development of such deposits by multiple selective formation hydraulic fracturing at different rock fracture pressures with changing their value using a coil tubing system. Fig. 1, ref. 8.