Comprehensive Study Petroleum Geology Of Chang 6 Member In Laoshan

In this paper, to basic theory and ideas of petroleum geology, tectonic geology, sedimentary petrology and logging geology subject as a guide and application of drilling and geological logging data, core analysis data and logging data, test oil production data, in the fine stratigraphic classification and correlation, structural features, sedimentary evolution characteristics, based on the comprehensive study of reservoir characteristics and reservoir, on Laoshan Chang 6 reservoir were used condition analysis, summed up the Chang 6 reservoir enrichment regularity, and make the lower exploration deployment proposal.The results showed that:labor mountainous Chang 6 is a broad easing of East West slope structure, amplitude per/km about 7-12m; mainly developed delta front underwater distributary channel NE deposition; reservoirs are low porosity, low permeability reservoir rock types are mainly feldspathic sandstone and lithic feldspathic sandstone, development compaction and dissolution; reservoir type from different angles can be divided into structural-lithological reservoirs, self self storage reservoirs and the temperature, pressure, light quality, low sulfur, medium viscosity reservoir, and because the reservoir is shallow, longitudinal oil, oil-water layer, the aqueous layer and dry layer intertwined distribution of sand body with the plane faster, lateral poor connectivity, distribution limitations, poor oil moisture differentiation; sedimentary environment for oil and gas accumulation play an important role in control, high position and sandstone structure with a combination of favorable hydrocarbon accumulation sites are places sandstone updip tip off lithologic traps for hydrocarbon accumulation is formed to provide a good space.