Seismic prediction of mid-shallow gas reservoirs in Jiyang depression.;

The gas reservoirs in Yong'anzhen faulted belt of Dongying sag are secondary reservoirs accumulated via multiple migration and differentiation.

Ar/~(39)Ar dating of diagenetic illites is performed in order to determine the beginning time of gas emplacement in gas reservoirs.

Discussion on seismic information character and geologic condition of gas accumulation in Sanhu region.;

The scale of gas accumulations depends on degasification of water-soluble gas under overpressured condition.

With the advances in exploration technology, a growing number of natural gas pools were discovered in the formation of deep volcanic rocks, so more and more attention was paid to the research on natural gas pool.

Study on the seismic technology in the predication of natural gas reservoir in middle and deep layer;

The results of isotope dating of illite in hydrocarbon reservoirs and testing results of saturation pressure and homogenization temperature of fluid inclusion indicate that natural gas reservoirs in Duoqiaobai area of Dongpu depression can be mainly divided into two mega-stages;The first stage is about 30.

The marine origin gas pools in Tarim Basin are distributed in Tabei,Tazhong and Bachu uplifts.

Middle-Lower Jurassic coal measures are the main source rocks of gas pools in Junggar Basin; sand bodies, faults and uncomfomities are migration pathways; the upper parts of Sangonghe and Badaohe Formations are regional cover rocks.