The Geological Evaluation And Prospective Exploration Of Dense Oil In Santanghu Basin

Thesis integrated use of the theory and method of petroleum geology, mineral petrology, organicgeochemistry and geophysics,study the dense oil accumulation conditions, the enrichment regularity in thePermian Lucaogou group in Basin Santanghu and pointed out the favorable target tight oil drilling. Basedon research at home and abroad, this paper first has been clear about the of geological factors of the densehydrocarbon accumulation. On the basis of the geological evaluation of mineral content of the organicmatter abundance, organic matter type, organic matter thermal evolution degree and the brittleness of thereservoir in the Permian series LuCaoGou set in Santanghu basin of hydrocarbon source rock, points outthat the area has the basic conditions of dense oil accumulation and exploration. Enrichment regularitystudy showed that the dense oil distribution of LuCaoGou group is mainly affected by the distribution ofthe effective source rock and fracture control, both in favor of the composite area of distribution is denseareas favorable for oil exploration.Both favorable distribution of the overlapping area is favorable area fordense oil exploration. Finally, comprehensive crack detection results, hydrocarbon detection results,geological structure, drilling situation, the maturity of source rocks, the soluble organic matter content andbrittle minerals and so on various aspects factors, forecast first category and second category of favorabledense oil exploration area of the LuCaoGou group in Santanghu basin of dense oil first category andsecond category of favorable exploration area, and point out two advantageous drilling targets.For denseoil exploration in the region,the completion of thesis has important guidance and reference significance.