Technology Research For Chang6Reservoir Of Zhiluo Oilfield

Chang6reservoir of Zhiluo oilfield belongs to the special low permeability tight sandstone reservoir, the physical properties is poor, the heterogeneities is strong,the oiliness changes in larger, the differences of oil and water is not obvious, there have no oil-water interface, it is a typical elastic-solution gas drive reservoir. From the regional characteristics of fractures, natural fractures are vertical fractures. The artificial fractures generated by the transformation of the region reservoir are horizontal fractures. The presence of natural fractures makes the fracture system of artificial modification more complex. The productivity of most wells are low, it must undergo fracturing in order to achieve the industrial oil flow.For the Zhiluo production plant,the chang6reservoir is a new series of strata, which have not a complete set of fracturing technology.In order to further expand exploration results, the effective development of the reservoir, it is important to research fracturing technology. The fracturing technology research can select the suitable fracturing fluid system of the chang6reservoir, adapt to the perforating and fracturing process, optimize the open degree of the reservoir and choose the effective protection of the fracturing additives.Through optimizing design and technology supporting research, the single well production can be improve and it is laying the groundwork for chang6reservoir efficient development.