Research On Application Of Multistage Fracturing Technology Of Well Baimiao H-1

Horizontal wells with staged fracturing technology is the development of low permeability reservoirsin an effective way. Horizontal wells can increase the well drainage area and improve the ultimate recoveryand economic benefits, staged fracturing can improve permeability reservoir and near wellbore oil flowsituation, to further promote the application of horizontal wells.Since the1980s abroad since the emergence of horizontal well fracturing stimulation technology hasbeen in development, and has become an important oil field development project. To date the formation ofhorizontal well fracturing technology staged fracturing chemical isolation, mechanical isolation stagedfracturing, hydraulic fracturing technology segmented packer multiple branches. Staged fracturinghorizontal injection wells force development is to use water-jet cutting, hydraulic packer is a relatively newtype of fracturing method, with less pollution, simple construction, easy directional characteristics, isdeveloped using horizontal wells in Zhongyuan Oilfield an common way.Through research papers horizontal well fracturing technology status quo at home and abroad, fromthe geological reserves, geological structure, reservoir properties, drilling and other aspects of the situationanalysis of the H-1wells Baimiao implement the feasibility of staged fracturing of horizontal wells. Studymade seam fracturing water jet principle, the use of FLUENT software simulates the nozzle flow fieldanalysis using ANSYS software, the stress distribution near the injection point was calculated annulus staticpressure, total pressure distribution, flow field plotted velocity distribution and flow lines and by sprayingnearby rock stress field analysis of the starting position and the initial rupture rupture mode. On the numberof staged fracturing cracks, crack length and crack spacing were optimized, the establishment of horizontalwells percolation model, has been consistent with the actual construction of the construction parameters.Developed fracturing implementation program, select the fracturing string and the fracturing fluid andproppant. Fracturing effect was evaluated on established capacity calculation model, and carried outcapacity forecasts. Findings on horizontal well fracturing technology provides some technical support.