Design Of Multi Horizontal Fractures Technology In One Oil Layer And Anaiysis Of Implementation

In order to improve the producing reservoirs, improve the effects of hydraulic fracturing, and design a new fracturing method of driving multi horizontal fractures in one oil layer. Combine the actual situation of QLC oilfield Z700well area, analyze the fracture geometric parameters effects of filtration coefficient and displacement. Develop a production prediction model of multi horizontal fractures in one oil layer based on the study of Vanpoollen, and analyze the influencing factors of it. After the comparison of stable production and cumulative production, determine two horizontal fractures in one oil layer is the best in Z700well area, and through analyze the problems of conventional hydraulic fracturing, combine current construction technology, optimize the construction parameters. Analyze the total production of Z700well area in different developing ways and different number of fractures, examples of Z635-3and Y83-6, compared them with the one-fracture in one oil layer fracturing and un-optimized two-fracture in one oil layer fracturing with producing capacity, the results showed that the optimized a two-fracture in one oil layer fracturing can significantly increase production of oil well yield and stable yield. In this paper, the content of research can provide theoretical basis and application methods for multi-fracture in one oil layer fracturing process design, and offer guidance to the design and application for multi-fracture in one oil layer fracturing process design.