Applications of physico-chemical prospecting to study of petroleum reservoirs in Zhidan area

It was estimated that the prospect perspective were weakness in Zhidan area once,since data was narrow,and prospect is difficult for complicated landforms (vale,ridge and replat).In this paper,by explored geo-physico-chemical prospecting method for looking for oil in prior prospect,the authors summ arize a suit of prospective technique and program,which is valid to oil-geology trait of Zhidan area and composed of: oil-gas geo-chemical prospect (acid degradation of hydrocarbon,absorbed-fluorescent spectrum,ultraviolet radiation spectrum,methane carbon-isotope)→non-seismic detection in favorable explorative area which confirmed by chemical prospect (matural potential,gamma energy spectrum,accurately magnetic analysis)→resistively prospecting in anom alous area which confirmed by physical-prospect→successful general evaluation of geo-physicochemical-prospect.Compared with routine petroleum exploitation,non-seismic physic-chemical prospect combined with geologic research show many obvious characters such as low-cost,short-period and high success rate,ect,especially to looking for non-struct ural oil-gas pool.