Establishment of ERT apparent resitivity model under multi-scale conditions and its effect analysis

Application of generalized symmetrical effective medium resistivity model in low resistivity reservoirs;

The theoretical and expe-rimental comparison of three effective medium resistivity models in laminated and dispersed shaly sands is addressed in d.

Based on the electrical efficiency model for clean rocks and the double water model and parallel conductance between laminated shale and dispersed shaly sand, improved electrical efficiency resistivity model is proposed for laminated and dispersed sand shaly interpretation.

Measurement of apparent resistivity value for coal slices of different seam structures;

1-D Simulation on model apparent resistivity curve of CSAMT method in certain mine;

Definition of whole zone apparent resistivity for transient electromagnetic method of current dipole source;

Because effects of laminated shale anddispersed shale on conductance mechanism are different,and W-S,D-W,S-B models widely usedin oilfield can only applied in dispersed shaly sands, not in laminated and dispersed shaly sands,it is nessesary to have a study on conductance mechanism of laminated and dispersed shaly sandsto establish a new generalized resistivity model ,so a.