Study on Horizontal Well Fracturing Numerical Simulation of Tight Oil Reservoir

摘要

Tight oil development is the hot problem all of the world, tight oil reservoir plays an important role in the unconventional oil & gas resource for China, fracturing in horizontal wells has become the key technology to enhance overall development profit of unconventional reservoirs, the high efficient production of tight oil, an important member of unconventional oil and gas, no exception, depends heavily on fracturing in horizontal wells too, the production of fractured horizontal wells affected by horizontal well length, position and fracturing parameter as well as other factors. In this paper, take the tight oil reservoir as object, using numerical simulation method to establish tight oil reservoir horizontal well model, combine fracture treatment technology, the influence horizontal well length, position and fracturing parameter on the production of tight oil reservoir has studied. The results show that, horizontal fracture is better for tight oil development, the horizontal well length optimum value is 1500m, fracture number optimum value is 18, fracture half-length optimum value is 250m, and the fracture conductivity optimum value is 3×10-3um2?cm.