The Study Of Glutinite Bodies Reservior In Yan22 Dongxin Area

Glutinite Bodies reservoir develops in yan22,dongxin area dongying depression. Those fans are rapid sedimentary for many stages, which are overlapped longitudinally, across in plane, forming a complex layout. So it's very important to divide the sedimentary stage. On the base of predecessors'study, guided by the theory of structural geology, sedimentation and so on, and comprehensive utilization of seismic, core, well logging and the analyzed data, the structure, sedimentary stage and the sediment system were systematic studied. The control action of structure to the sedimentary was also analyzed. That has important guiding significance for the forecasting of reservoir and the preference of oil and gas cluster region.Starting from 3D seismic, with the help of seismic inversion, through the statistics of glutenite'thickness and percentage composition, the analyze of well's logging data, combine the analysis of sedimentary background, we get that: the study area is located at the north steep slope zone. Chennan fault controls the sandstone body distribution. The source is from the north, corresponding the yan16 old gully. It mainly develops nearshore subaqueous fans during the fourth sections of shahejie formation. At the early of the fourth sections of shahejie formation, the water is low, and the fans are rapid mess sedimentary. After that, the water becomes deeper and deeper, the fans gradual moves towards north. That makes fans overlay.Integrated application of core, logging and seismic data, the sedimentary stage of the fourth sections of shahejie formation was divided, yan22 Dongxin area. The object interval was divided into 12 stages. It also develops many sedimentary cycles and mainly are normal cycle. Combine the logging and seismic, use the divided stage as the stratigraphic correlation cell, carry on the stratigraphic correlation, that build the sedimentary stratigraphic framework of the fourth sections of shahejie formation, yan22 Dongxin area.Through observation of core sample and thin slice and size analysis, the study area's sedimentary facies were fixed. It develops nearshore subaqueous fan and slumping turbidite fan during the fourth sections of shahejie formation, yan22 Dongxin area. Subfacies are mostly nearshore subaqueous fan's midfan. Microfacies are main channel, braided channel and braided interchannel. The microfacies'sedimentation model was built combing the logging character. The study area is controlled by the north source according to statistics of glutenite'thickness and percentage composition, seismic reflection configuration. On the base of above research, the profile and in-plane phasing were analyzed, and the sedimentary system's layout rule of time and space was also revealed.