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In view of the low success rate of logging in annulus fluid production profile in domestic oil fields, the relationship between instrument string and well deviation is carried out Requirements of downhole instruments for annular testing construction in highly deviated wells; The lifting and lowering technology of well entry instruments in highly deviated wells has been systematically studied. After field application, the logging technology has been updated and improved. By using large diameter cable, flexibly connecting and splitting instruments, reducing the outer diameter of instruments, configuring automatic direction finder, enhancing the umbrella collecting strength and other improvements in technology and construction methods, the problem of difficulty in measuring the logging data of liquid production profile in the annulus of highly inclined pumping wells is well solved, and the demand of dynamic monitoring of highly inclined wells in oil fields is met.

Research and application of logging technology for annulus fluid production profile in highly deviated wells