Simulation on horizontal seam reservoir fracture propagation law

摘要

In this paper, the main research is the regularity of the horizontal joint oil layer and the technique of how to control it. Through analysis of the status of the original ground stress and the ground stress at the near wellbore formation, and judging from the fracturing horizontal cracks on the conditions, we used the fluid solid coupling finite element method simulation and indoor model test, to find the relationship between the various influencing factors and the horizontal seam form. Based on the above research, we finally summarized the law of Daqing Changyuan LaSaXing oilfield horizontal fractures, and found an effective method to control the horizontal seam formation fracturing, so that we can optimize the fracture reconstruction volume by adjusting and controlling the fracturing design and construction parameters, thus making measures to improve the effect of oil increase. Then we established the control method of the fracturing horizontal seam to provide effective guidance for horizontal seam fracturing.