Technology Research Of Well Fracturing And Selected Layer On Mixed Water Volume In Oil Field

In recent years, the volume of fracturing technology to achieve the development of tightoil and other unconventional oil and gas resources in foreign countries, change the pattern ofworld energy, as a "revolutionary" technology has attracted much attention. According to thereservoir of low permeability and tight reservoir characteristics in China and low permeability,decided to adopt the conventional fracturing technology to form a single crack, in order toachieve the effect of increasing production is difficult to achieve commercial exploitationvalue, fracturing technology development model must be the. Foreign shale gas volumefracturing technology used successfully, China put forward the idea of reservoir volumefracturing ultra-low permeability, this paper proves that, the ultra low permeability oilTripitaka volume after fracturing, forming a complex fracture network, increase thereconstruction volume, not only of the early high yield, but also more conducive to thelong-term stable good. And reached the following conclusions:1. The initial formation of the formation pressure, well network characteristics, reservoir,water flooding, based on six factors well selection standard, and obtained a good effect.。2."Well, combined with the characteristics of reservoir, water flooding and remaining oildistribution," refinement of the Chang4+5, Chang8, wells and Chang7reservoir is the mainreservoir of selected layer foundation condition, defined the direction of each reservoir wells.3. Combined with "well pattern, reservoir, water and residual oil distribution", thereasonable process parameters, can effectively improve the measure effect.4. On the basis of reasonable flowing pressure, optimizing the working system, to ensurethe long-term stable production measures.5. More research to improve fracture morphology, fracture network adapter, to improvethe recovery of the old liberated areas, improve the ultimate recovery.6. Broaden the range test, optimization of process technology, and provide technicalsupport for the reservoir management.