Characteristics Of Pyrolith Reservoir Of Kongdian Formation In Gaoqing Oilfield

Gaoqing oilfield, which is characterized by complicated structures, is located on the southwestern part of Dongying sag structural belt. The igneous rock reservoir mainly distributed in Kongdian formation by vertical is large in size, with variable thickness and compact lithology. A set of comprehensive interpretation techniques dominated by seismic data processing technique on work station and interactive technique are established, including fine formation correlation, formation identification, sophisticated structural interpretation and comprehensive interpretation, core well lithology, electric log interpretation, igneous facies division and evaluation. Identification and forecasting for igneous rock is one hard problem of exploration activity, because it has extreme aeolotropism. By firstly synthetically utilizing seismic analysis, well logging restricted inversion, core well core and electric log analysis method and so on, the igneous rock reservoir of Gaoqing oilfield is effectively identified and divided into one to four four phases according to igneous rock erupting phase. On the base of core observation and analysis and laboratory test data research and in the light of lithology of eruptive rock, tectonic feature, variable thickness ,the difference of electric nature and reservoir space vegetal degree etc, the igneous rock divided into crater facies, proximal slope facies and distal slope facies. As a foundation of reservoir and the geologic condition of forming hydrocarbon reservoir research and in the light of control degree of trap well drilling , sub-control reserves and predicting content, hydrocarbon resources is evaluated, what provides theory foundation and technique method for igneous rock reservoir valid development.