Horizontal Wells Fracturing Optimization Design Of Low Permeability Fractured Reservoirs

Recently, along with the increasing in the number of horizontal wells and the continuously development of fracturing technology,it has been main method for developing the low permeability fractured reservoirsusing horizontal well technique combined with large-scale fracturing technique. Conducting horizontal wells fracturing stimulation utilizing the optimization of fractured parameter and construction parameter by numerical simulation, it has an important practical significance to improve the development of fracturing horizontal wells.In this paper,based on water cut rapidly increasing and capacity sharply declining caused by the Red River oil field horizontal wells fractured,it takes research using statistical analysis,theoretical analysis,numerical simulation of integrated research from fracturing wells materials of studying area. Ultimately it is concluded that a set of fracturing optimization design of horizontal wells in low permeability fractured reservoirs. Firstly, fracturing characteristics of horizontal wells in low permeability fractured reservoirs,fracturing curves and characteristics of interwell communication in low permeability fractured reservoirs of the Red River oil field long 8 are under analyzed.Secondly,horizontal wells productivity analysis in low permeability crack reservoir after fractured and fracture parameter optimization design, setting up single and double fractured reservoirs model,comparison analysis of single and double model,the influence of interwell communication,single factor on capacity analysis,the Red River oil field long 8 reservoir productivity prediction and fracture parameters optimization design are conducted by numerical simulation software(CMG software).Thirdly,optimizing fracturing design software(Fracpro PT software) is used to optimize fracturing operation parameters. The Red River oil field long 8 of low permeability fractured reservoir as an example,combined with the field data and reservoir geology,offer the optimized fracture parameters and operation parameters of preventing interwell communication,direct field construction.