Huqing Oilfield Comprehensive Profile Control Technology Research And Application

Oilfield water injection wells and gradually develop high water cut oil production is the process of developing a common problem.Due to the formation of native and epigenetic heterogeneity,differences in the degree of fluid flow and other reasons(such as a job fails,improper production practices,etc.),the advantages of forming a water channel in the formation,resulting in water coning,channeling water,water fingering to make some well premature see the water or flooding,water flooding cycle of inefficient or ineffective.Profile oilfield water shutoff technology has been developed to improve the water effect,an effective means to achieve stable production reservoir.Profile shutoff technology in the country has decades of research and application history,in various stages of development plays an important role in oil.However,high water cut oil or high water cut mining period,oilfield water flooding problem more complex,such as controlling water shutoff profile technical difficulty stabilizing oil higher.Based on the temperature Huqing oil,salt,reservoir characteristics and high moisture profile problems encountered water shutoff technology has been studied by laboratory tests,developed underground organic crosslinking agent,a small dose profile,high strength inorganic profile control agent and does not pressure filtration profile residue water shutoff technology.By summing up the construction process and the perfect spot to explore a set of on-site construction technology,to meet the water shutoff profile Huqing oil needs.The smooth conduct of the technical studies to improve water flooding Huqing effect,the depth of tapping the potential of remaining oil,enhanced oil recovery is of great significance.