Simulation of Oil Shale Hydraulic Fracturing in Nong’an and the Experimental Study

Abstract:

The cost and efficiency of in-situ mining of oil shale are affected by the number and size of cracks, it is necessary to build or expand fissures before hydraulic fracturing of oil shale and the fracturing pressure is an important parameter in the fracturing process. This paper takes the Nong’an oil shale as the research object, the numerical calculation of fracturing process of hydraulic fracturing process under perforation completion and numerical simulation was made on hydraulic fracturing process with 2D seepage analysis version of realistic fracturing process analysis software; the fracture pressure of oil shale was obtained. The experimental comparison was carried out on oil shale fracturing in Nong’an mining area; the validity of the numerical simulation was verified. The comparison results show that both the simulation and the experimental values are larger than the calculated ones.

Key words:oil shale; hydraulic fracturing; fracture pressure; numerical simulation; Nong’an oil shale mining area