ПРОЕКТИРОВАНИЕ ГИДРАВЛИЧЕСКОГО РАЗРЫВА ПЛАСТА НА СКВАЖИНАХ ЮЖНО-ТАРАСОВСКОГО МЕСТОРОЖДЕНИЯ

Abstract

At the present time the oil fields mainly with the hard -to- recover oil resources are being developed. One of the most effective methods of oil mining intensification at the given formations is hydraulic fracturing of formation (HFF). Hydraulic fracturing may be determined as a mechanical method of influence upon the productive formation. In the process of hydraulic fracturing cracks are developed which are new channels of the oil movement, increasing the common permeability of the formation. The obtained cracks are spread in the planes perpendicular minimum to the three components in the space of pressures. After the hydraulic fracturing for the reason of the fluide influence under the pressure the crack increases and connects with the natural cracks in the remote zones of the formation and with sections of the high permeability. As a result the area of the formation drained by the well is enlarged. Design of the HFF crack allows to select correctly the necessary equipment, the quantity of propping agent and fluid of fracturing, which in its turn must meet the main requirements. The analyses of the geology - technical measures used at the Yuzhno - Tarasovskom oil field and the hydraulic fracture efficiency is presented in the article separately by layers. The wells are selected for designing HFF taking into account on what layers the most instantaneous increase of the oil rate for 1 month have been obtained. The designing was carried out taking into account the geological and technological parameters of the formations. The calculation of the HFF’s `main parameters at the wells of BP81; BP72 and Ach1 formations has been fulfilled. The obtained results may be used for selecting necessary equipment, quantity of the propping agent and fluid of the formation fracture.