Methods of Formation Resistivity Correction for Salty Mud Invasion;

Under mud invasion,resistivities of oil layer and water layer in different radial depth are influenced by various factors.

Based on analyzing main factor of generating low-resistivity hydrocarbon reservoir, the corresponding recognition methods are established respectively according to high bound water saturation, sand shale interlayer deposition and mud invasion as the leading causes of generating low-resistivity hydrocarbon reservoir, and the succes.

Influence of magma intrusion on reservoir features of surrounding mud rocks in rift basin-case study of gabbros in Chunxi area of Dongying Sag;

Preservation conditions of the coalbed methane in Tiefa mining area is systematically studied based on analyses of the lithology and sealing capability of the adjacent rocks of coal bed, later reformation, hydrogeologic conditions, and magma intrusion.

The influences of Magma intrusion activity on the clastic rocks include the magma upwarp activity, the baked activity and the hydrothermal activity.

The paper synthesizes domestic and foreign references,suggests three types of magma emplacement according to depth of magma emplacement,distance of magma migration,degree of magma crystallization and advancing their combination types,reviews the process and characteristic of magma emplacement of every emplacement type and discusses magma emplacement space and factors affecting magma emplacement.