Studies On Efficient Measures Fractured Well Technique

After 30 years of development in Lamadian oilfield,distribution of remaining oil more fragmented, water out level more and more difference in endostratic, the high penetration site has formed a "watercourse", that is invalid injection-production cycle. Most of the injection water advance suddenly along the high penetration, so the low penetration site difficult to use. result in election fracturing Well more difficult, fracturing tap is more and more increasing difficulty.Meanwhile in the fracturing reformation respect, the lack of systematic research, the reasons for the fracturing failure don,t clearly understand, cause lack of technologic measures, results is poor. So in the ultra-high moisture content in order to meet thick oil tap needs, ensure the oil well fracturing effect, on the basis of the reservoir precise description to find remaining oil rich layer,increase in the volume of sand and the effects of oil, parameters in fracturing key process and fracturing technology,carried out studies.Through this research, the reservoir has been transformad from small-scale to expand the scale of the direction, develope from a single combination to a number of measures. First, for the purpose of increase the scale of transformation,research and application the increased volume of sand fracturing process; second, for the purpose of fracturing oil and water-sealing dual role, promote and use a combination fracturing and water shutoff; third, for the purpose of Mining the low-permeability layer to finish fine-dug, study and improve fracturing-located process;At the same time, optimal adjustment fracturing construction parameters and the use new fracturing technology to enhance the effect of fracturing. Formed "large volume of sand fracturing, with pressure blocking, combination fracturing and shuting off,fracturing personalized matching process design efficient fracturing technology, enhancing the effect of fracturing measures, further explore the new Way of fine fracturing in the ultra-high moisture content.