Study on Production in Different Layers of Tight Reservoir

Abstract

Abstract In rencent years, the tight oil blocks in our factory are all developed without injectio n and put into production by large-scale fracture network. There are problems of low initial pro duction and fast decline, and the development effect is poor. Because of the large inclination A ngle of the vertical well, it is impossible to obtain the test results of stratified fluid production b y conventional test methods. At the same time, the understanding of tight oil reservoir utilizatio n status after large-scale reconstruction is not clear enough. Therefore, the test of liquid product ion profile in inclined vertical Wells is explored. Meanwhile, the results of conventional liqui d production profile are applied to in-depth analysis of reservoir utilization status in convention al blocks and test blocks respectively, and the relationship between different reservoir types an d fracturing scale and liquid production capacity is determined. The influencing factors and app lication principles of CDFT test results were clarified, the understanding of different reservoi r utilization conditions was obtained, and the main direction of the optimal design of fracturin g program was clarified, which provided technical support for the subsequent design and optim ization of fracturing program in the new district.