On the basis of analyzing the time space changing rule of hydrochemical contents of Guantao Ⅲ formation reservoir in Tanggu geothermal system, Tianjing City, this paper studies geothermal depositing environment using the pH\|value, the gas contents, and the geothermal water age which calculated by radioactive isotope 14 C.

They are of significant interest to well completion in the geothermal reservoirs of the Guantao Group in the Jizhong and Huanghua depr.

Dynamic evaluation of waterflooding timing in upper Guantao Formation reserviors of Chengdao oilfield.;

Shallow Oscillating Lacustrine Sediment of the Late Guantao Formation in Gudao Oilfield, Shandong Province;

A preliminary discussion on profile control technology for Guantao Formation reservoir in Chengdao oilfield;

Conditions and control factors of hydrocarbon accumulation in Guantao Formation in Zhuang 106 well-block of Laohekou Oilfield;

The water level dynamic change regulation of geothermal liquid from the single well and plane in Guantao group reservoir is analysed.

Guantao group of Qingtuozi heave is the potential prospecting area in Dongxin oilfield,but the strata distribution and sedimentary facies have not been researched so far.

The distortion of logging velocity in the thin reservoir of Guantao Group in Gudong area happened because of shallower buried depth of formation, relatively unconsolidated formation, larger variation in well diameter and mudstone mixed with montmorilloni.