Research And Application Of Intelligent Zonal Testing Technology

The subject mainly aims at developing the research for new testing technology of producing well.Testing of oil-gas well generally falls into two process,that one is testing process of oil-gas well,the other is interpretation process of testing data.The subject lays particular emphasis on the former technical research that pays particular sttention to the research for testing system,engineering fulfilment and application. The research focuses on engineering fulfillment of testing system.The testing technical of oil-gas well can effectively guarantee the stimulation and production response for oil well,however,owing to sand production in oil well,complex hole condition and higher waterflood degree effect for maturing development period. Using the present zonal testing means is hard to acquire effective complete profile data of liquid production in oil well and a lot of operation time and cost is spent, therefore cost is very high. In accordance with difficult testing problem of liquid production profile in oil well,the research of subject puts forward adopoting that combining modern electronic technology with precise mechanical design do research for intelligent zonal testing technique system,on the basis of compatibility to oil recovery condition of field ,it is realized that can do zonal testing of liquid production profile in oil well and under the support of testing conclusion it is achieved that water sticking any piugging and separate zone production can make. Intelligent zonal testing system can bring about surface scheduling and open or close corresponding productive formation with the aid of intelligent switch for downhole remote control so that liquid production profile data can be got. The paper telates with a large number of length that intelligent zonal testing system has the details of technical plan that is worked out, wihich involves in intelligent zonal testing system that acheieves intelligent downhole control subsystem and downhole switch subsystem that do priority research and have the brief discuss for downhole acquisition subsystem, surface control subsystem and process pipe string etc.subsystem.The applied practice demonstrates that intelligent zonal testing technique can not only measure the output and component of stratified production fluid,but also know stratified pressure condition, fluid property and the change of reservoir parameter. This technology has saved operating time and reduced operating cost and avoided well bore interference and the effect of well control fluid. That intelligent zonal testing technique puts foeward and engineering achieves are not only for the breakthrough and innovation of testing technique in oil well, but also the system is used as intelligent pipe string of separate zone production ,thereby realizing the organic combination of testing and production system.It is to do the production operation of breakthrouth—production ,testing that traditional ideas of testing has a definite theoretical meaning.The study gives the partial applied case history of water plugging and location in JiLin Oilfield for intelligent zonal testing technique at last.