Research And Application Of Deep Profile Control In Fuyu Oilfield

Based on the summarization of Fuyu existing profile control technique, starting from the geological study and setting geology, seismic, logging, and dynamic analysis etc. multidisciplinary research as a whole, the article deeply analyses reservoir characteristic, definites main problems, potential and profile control direction through careful reservoir static and dynamic analysis in the block. Based on the thorough analysis of reservoir characteristic, define two issues solved by deep profile control: according to reservoir development characteristics, both block water channeling channel and keep seepage ability; according to the condition of poor seepage ability of sandstone matrix in double seepage medium, impove crude oil seepage ability in matrix.According to the reservoir, optimize expansion gel as main profile control agent. Cooperating with the deep profile control agent combination of nanoparticles and macromolecular flocculating regiment, according to the injection-production patterns water driving connected thickness, combining with deep profile control agent system characteristics, approximately calculate profile control agent dosage by using ellipsoid or half ellipsoid volume formula. According to different development contradictions and different flow characteristics in different layers, optimize the operation parameters. Using favor deep profile operating technology and parameter control technology for on-site construction in the favor test block, deployment effect is obvious. Water ratio in the block cuts down above 3%. The block realizes not natural descending. Water injection development effect improves obviously. Average single well increased oil is 336 tons. In order to ensure profile effect, study profile matching technology. It is concluded that the combination of flooding and profile can improve development effect.