Simulation Of Volume Fracturing Network And Research On The Factors Affecting The Production Of Tight Oil Reservoir

Nowadays volume fracturing of horizontal well comes to be a main way in Tight oil development.Because of the natural fracture in reservoir,the extension of fracture network after fracturing will be specifically affected by growth of the natural fracture.Describing the distribution of natural fracture and using crustal stress,rock brittleness,fracturing parameters and so on,simulating fracture network synthetically.On the basis of the simulation results the geological model will be established.The analysis of influence factors of production can provide data support for the establishment of the geological model and optimize fracturing parameters for volume fracturing,thus having theoretical guiding significance for the actual fracturing and production of oilfield.After sufficient investigation of fracture prediction and fracture network expansion model at home and abroad,on the basis of geological characteristics of the study area,5 kinds of calculation methods for natural fracture parameters are designed.Combining the factors of natural fracture distribution and the several influencing factors,fracture network can be simulated.Exporting the fracture simulation results,establishing the theoretical geological model,making analysis of the influence of the parameters in several aspects of geology,fracturing,putting forward suggestions to optimize production.Selecting an actual well in-situ and using simulation method proposed before to provide fracture parameters quantitatively.Establishing double medium model of actual well and using reservoir numerical simulation method to research.Fitting with the production condition to correct model and analyzing the influence factors of production to evaluate the production level of actual well,thus providing guidance for fracturing-production integrated technology of tight oil development.