The Horizontal Well Water Injection Technology Research And Application

In1991, American Texaco company first industrial horizontal well water injection afterthe success of many fields, such as Oman Saih Rawl, Yibal, Sarah have been using horizontalwell water injection, and achieved a good development result, recovery factor was increasedby10%～15%. With a thin layer of low permeability reservoir development, vertical Wellsshows that more and more water injection limitations. Based on the comprehensive researchon the basis of horizontal well water injection literature, the horizontal well water injectiontechnology characteristics, advantages, injection-production reservoir filter conditions and therealization of horizontal well injection technology on the study of the theory of the full ofhorizontal well water absorption profile test, the horizontal well water injection string the card,the horizontal well blasting, two sections of horizontal Wells and three sections of layeredinjection system research and developed by supporting tools. Research results successfullyused in low permeability and ultra-thin reservoir of horizontal Wells water injection test.Thetest results show, the injected water nearly linear driver is horizontal well improve theefficiency of the water flooding water main factors. When low permeability reservoir, the thinreservoir situation worse, vertical Wells can not meet the development need water, choose touse the horizontal well water injection has obvious advantages. The horizontal well forsecondary and three sections of points note process can meet the need of horizontal Wellslayered water injection. Horizontal well drilling cost down, the application of horizontal wellwater injection technology becomes possible, is thin layer and low permeability reservoirshigh efficiency and development of a new ways and choice.