Design of corresponding fracturing parameters based on thin sand reservoir characteristics

Abstract

Abstract China’s onshore oil fields have entered the late stage of development, while the reserves of thin-poor layers account for a large proportion of the remaining recoverable reserves. The development of thin-poor reservoirs has become an important potential for tapping potential. In this paper, the numerical simulation method is used to optimize the crack radius corresponding to the fracturing of the thin-poll injection-production system. The optimization results show that the fractured radius of the well has a greater impact on the final cumulative oil production and recovery when the fractured radius does not break the permeability boundary for a thin reservoir with a fracture penetration ratio of water and oil wells between 35% and 45%. when the oil well is in the high permeability area and the water well is in the low permeability area, the fractured radius of the well and the surrounding area of the oil well are used. The situation has a greater impact on the final oil production.