Experiment on stress sensitivity in low permeability sandstone reservoir;

Experiment:water flooding characteristics of low oil saturation sandstone reservoirs;

Comprehensive evaluation of low permeability sandstone reservoir by geochemistry and well logging-taking Jishan sandstone reservoir of Shanghe Oilfield as an exampIe;

A technology to tap potential and stabilize production for offshore sandstone oilfields of lowamplitude anticline;

The characteristics of sweep efficiency and oil-displacement efficiency during the polymer flooding in the heterogeneous sandstone oilfield were studied by oil-displacement experiments on three-dimensional physical models.

Field logging tests were made in Daqing Oilfield in order to verify their applicability in the sandstone oilfield, especially in the well the formation series is consist of thin and across shaly-sandstone.

It is founded that land bitumen,the oxides of petroleum and oil soaked sandstone are of high reduction and precipitation ability to U,Mo,Se,V and Re,and fairly important to uranium metallogeny.

The thermal simulation analytical table varnishes the sandstone to have the high vitality ability,may become the Jurassic series reservoir high quanlity gas source rock,further carrier out the oil sandstone distribution,depository and gas condition,the Jurassic series is distressed the exploration to the western Sichuan area north to have the vital significance.