The Research On Reservoir Characteristics Of Huoshiling Formation In Wangfu Faulted Depression

In this article, through core observation, thin section identification, logging and3dseismic and reservoir physical property data, comprehensive analysis of the application ofWangfu fault depression Huoshiling group of volcanic rock reservoir characteristics hascarried on the detailed study, and the reservoir comprehensive evaluation and favorablereservoir prediction. Wangfu fault depression Huoshiling group development of volcanicrocks, volcanic lava volcanic clastic lava, sedimentary pyroclastic rocks, and volcanic clasticrocks on a total of five class, the volcanic lithology and facies, channel facies, volcanoeruption facies, four types of facies volcanic sedimentary facies, a total of9kinds of subfacies,Wangfu fault depression fire stone mountain group volcanic rocks in the divided into fourcycle. To identify the volcanic mechanism of acidic volcanic mechanism, neutral alkalinevolcanic mechanism, neutral volcanic mechanism, basic volcanic mechanism four types ofvolcanoes. Development of primary pore and secondary pore are reservoir space.The formation in Wangfu faulted depression of huoshiling formation mainly developedvolcano rock. In recent years, the volcano rocks in the exploration of oil and gas fields get agreat deal of attention, the reason of that is the reservoir value of volcano. At the present stage,the degree of exploration in Wangfu faulted is higher, on the systems study of reservoircharacteristics in this region; establishment the reservoir of volcano rock in huodhilingformation model; provide a basis for the exploration deployment in this region and itsadjacent area. Through the stratigraphic section, the typical well recognition, rift betweengroups, cycle, volcano rock lithology, lithofacies and established comprehensive comparisonbetween reservoir space and diagenesis, to explore the reservoir features of huoshilingformation in Wangfu faulted depression. The contents of this paper include the research ofvolcano stratigraphic sequence characteristics in Wangfu faulted depression, volcano rockfacies, volcano mechanism, reservoir characteristic and favorable reservoir prediction.Thevolcanic rock of huoshiling formation in Wangfu faulted depression only developed inhuoshiling formation two segment, and mainly by intermediate-basic volcanic lava; The mainreservoir space for volcano rock is the dissolved pore and the primary pore; The lithology ismainly trachyandesitic pyroclastics, followed by trachyandesites volcano breccias.Thereservoir is under common control of lithology, lithofacies, cycle, volcano mechanism typeand unconformity interface.