The sonic log is used to differentiate shale from dolomite.
The transmitting transducer is the most important part of the orthogonal dipole sonic logging tool, which affects the performance and waveforms.
In borehole sonic logging, these may be the shear, flexural and Stoneley waves.
On the basis of resistivity,sonic logging,density data and geology data in ODP184,there exist gas hydrates in the continental slope of the South China Sea.
Based on mud stone sonic log and measured fluid pressure, the paper analyzes the distribution of abnormal pressure in the Chexi sag, as well as its influence on petroleum migration and accumulation.
The mudstone sonic log interval, measured stratigraphic pressure and seismic data are integrated to analyze the underground fluid pressure fields in Damintun depression, Liaohe basin.
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