Practice of multistage fracturing by fast drilling out bridge plug in horizontal wells in Jinghe competent oil reservoir

The reservoirs of Jinghe Oilfield have shallow burial depth and low stress difference between the reservoir and isolating layer, which pose great difficulty in fracturing. Previously external packer fracturing technology in horizontal openhole was used and was effective to some extent; but this technology is preset string completion and not suitable for later stimulation. So in order to solve this problem, the completion method is changed to casing cementing. In view of the difficulty in fracturing the Jinghe Oilfield, we optimized the operation string, wellhead, downhole fracturing materials, fracture parameters and construction parameters, etc. and also conducted tests on stage fracturing by fast drilling bridge plugs in JH32P1 Well. This well was fractured with 4 days, and plug drilling was successful after fracturing. During oil test, this well produced 14.2 t/d oil; compared with offset wells of similar reservoir conditions but fractured with openhole packers, this production was increased . The significantly successful application of this technology in Jinghe Oilfield provides experiences for promotion of the stage fracturing technology by fast drilling bridge plugs in Jinghe Oilfield.