The relationship between Getuo fault and hydrocarbon accumulation in the 4^th structural belt of Nanpu Depression

Faults are well developed in 4^th structural belt of Nanpu Depression, among which there are not only deep faults linking hydrocarbon source rocks and traps, but also the associated faults that can reach shallow reservoirs.Based on the analysis results of seismic, logging and oil-testing data, the spatial distribution of faults have been analyzed, the grow th index of faults and Shale Gouge Ration (SGR) are calculated.In addition, evaluation has been done on the activity of faults, the sealing and transportation capability of fault s.Combined with the study on the matching relationship between the fault activity with hydrocarbon generation and expulsion, analyzed with modeling results, the relationship between faults with hydrocarbon migration and accumulation, and the control roles of the these faults on hydrocarbon migration and accumulation have been studied thoroughly.Finally, based on the analysis of the typical oil and gas reservoir profiles, the model of hydrocarbon migration and accumulation of the 4^th structural belt has been constructed.