In the secondary structural element in east Sichuan region,there exists a steep faulted zone in the vicinity of all steep limb axex of both high steep anticline and low steep structure.
In the secondary rank of structural element in east Sichuan region, there exists a steep faulted zone in the vicinity of all step limp axes of both high steep anticline and low steep structure, especially for to a couple of limp is incoordination (unsymmetrical) folded structural type, which zones affect the accurate interpretation on the seismic information.
Carboniferous System in East Sichuan is the main gas producing formationin Sichuan Basin,and high-steep anticlinal belts are the main enrichment zones of Carboniferous natural gas.
Seven to eight subparallel rows of high and steep echelon anticlines arranged in the extent of 200—300 km of eastern Sichuan are thought to be genetically related to deep faults.
The conceptual model of the elasticity energy field potential of the formation pressure of Carboniferous reservoir body in East Sichuan is proposed out. The central uplift structure, combination trap gas reservoir of formation stracture and sectional characteristics in the main high and deep anticlinal belt of the area are described by elasticity energy field potential of formation pressure.
The high-steep anticline belt belonged to barrier parallel fold is greatly variant in vertical,forming many types of traps and being of various gas-water distribution laws.