| Now, the majority of our oil has entered the post-mining of high moisture or high water cut, the conventional water shutoff profile technology can not meet the needs of oil production, deep profile control technology developed in recent years aimed at improving water flooding the effect of technology in improving the high water content of reservoir water flooding gained a significant effect. Liaohe Oilfield, according to Huan 26 fault block reservoir heterogeneity serious water utilization is low, the effect of water yearly variation characteristics, targeted to carry out deep flooding technology.In this paper, a cross-sectional analysis of domestic and international transfer through the system’s current situation and problems of water shut-off technology, combined with the development and current status of the block main problems, systematic regional sedimentary characteristics, porosity characteristics, fluid properties analysis, reservoir conditions analysis Fine geological studies, careful collection Huan 26 reservoir pressure, the relevant data water-flood reserves the degree of control, driven by the degree of water, water utilization, with emphasis on the gel system, syllable particle type and flooding systems, such as static and conduct indoor dynamic screening and evaluation of performance indicators, through the establishment of "closure, flooding, washing" design concept, the use of the advantages of channel blocking compound gel system, the use of movable gel flooding, deep into the formation to achieve flow steering, improve absorption profile, improve injection waves and volume, ultimately improve water-flood oil recovery, to achieve sustained and stable old to play an active role. |