Elementary Discussion on Progress and Application of Cased-well Logging Technology

Following the requirement of oil exploration,the csed- well logging technology,a kind of oil and gas logging technology,is developing quickly these years. The paper introduces some techniques of cased- well logging,like injection profile,production profile,reservoir evaluation,and quality evaluation of settled wells and cased- well and their application in practiced work. Cased- well logging technology,which can be used in exploratory well,development well and producing well,has three measurements such as vertical well measurement,horizontal well measurement and crosshole measurement.The technology can be used in whole process of oil and gas exploration,and provide technical basis for high- efficience exploration and production increase.