Continuous Reservoir Sandstone Petroleum System Study–Chang8Reservoir Of The Red Rriver Oil Field In Ordos Basin As An Example

Transport system is the “bridge and tie” which connect the hydrocarbon source rock andlithologic trap, it is an important part of oil and gas migration and accumulation of thereservoir forming system, the Chang8reservoir mainly for continuity of tight sandstonereservoir, play translocation is the main sand body and crack pathway, how to carry on thequantitative characterization of this kind of transport oil and gas transporting ability, is theemphasis and difficulty of oil and gas reservoir research.Through the analysis of thin section, casting and mercury injection test data, a detaileddescription of the connectivity and spatial distribution of Chang8sandstone transportingsystem, and makes a quantitative characterization of the transport properties, the sandstonetransporting channel development, the lateral migration in the oil and gas, has certainconductivity; describing the crack surrounding outcrop, the core of development, with the helpof imaging logging and conventional logging data, a lot of crack identification in this area,calculate the crack parameters, length, and prediction of fractured zone, to study in detail thecracks conducting system and connectivity. Crack passage system is a communication majormigration pathway of hydrocarbon source rock and reservoir, at the same time in the lowpermeability reservoir migration communication plays a very important role. Study of sandtransportation system and accurate identification of cracks, tracking and identifying the mainchannels of oil and gas migration is of great significance.Reservoir lithology reservoir shows, body length of8segment development sand controlRed River areas, mainly for the upper and lower stem layer, middle layer “sandwich” type, thepermeability is mainly decided reservoir productivity factors. Think of Chang8period of lowpermeable reservoir with “first after filling, diagenesis, and reservoir” accumulation model, allof research results, prediction of favorable exploration area.