METHOD OF CONTROL OVER HYDRAULIC FRACTURING PATH IN FORMATIONS WITH INTRINSIC FRACTURES Russian patent published in 2014 - IPC E21B43/26 E21B43/267 

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to methods of management, control and optimisation of parameters of hydraulic fracture crack (HFC) during hydraulic fracturing in oil- and gas-bearing reservoirs with existing network of intrinsic (geological) fractures; it can be applied at respective oil and gas deposits. According to the method it is necessary to create matrix of interrelations between variety of input parameters about formation, pumping and fracturing and forecast increment of hydraulic fracture crack preliminary. Process of hydraulic fracturing is initiated. Actual input parameters of the formed hydraulic fracture are measured. Against the matrix forecast increment of hydraulic fracture crack is searched and obtained depending on actual input parameters of the formed hydraulic fracture. Actual increment of hydraulic fracture formed during the process is measured. Actual increment of the hydraulic fracture crack is compared with the forecast one. In case of their difference actual input parameters of the formed fracture crack are changed.

EFFECT: increasing efficiency and accuracy of hydraulic fracturing control.

20 cl, 4 dwg