Environment Correction and Application of Porosity Logging Data in Carbonate Formations

Seismic reservoir prediction requires high-precision logging data, namely Environment correction of logging data is necessary in reservoirs as well as non-reservoirs. To Eliminate the impacts of borehole collapse and other factors on logs, put forward the first to find out the abnormal of log curve, according to the abnormal, a set of correction methods for the sonic logging data and density logging data are proposed of respectively, such as reprocessing of array acoustic logging data and reconstruct-editing method. These methods were be used in carbonate rocks in the northeastern of Sichuan province. The results prove show these methods effective and correct. The ideas and methods are promising for other formations and areas.