Predication Of Igneous Reservoirs And Assessment Of Favorable Plays In Bin3 Block

Taking the E formation of Paleogen in Bin 3 area of Dongying Depression as the research object,based on the identification theories of igneous rock,and adopting the research thinking of“point?core,drilling,logging,etc?--line?well-connecting line?--surface?planar attribute?--field?time domain evolution,space domain distribution?”,the comprehensive research of igneous reservoirs was carried out.The purpose of this paper is to clarify the planar prediction of igneous rocks and the law of hydrocarbon enrichment.According to the comprehensive analysis of core data and logging data,First of all,we classified the space types of igneous rock reservoir,based on the analysis of igneous rock facies,the characteristics of igneous rock facies in the study area are summarized.Then,from the petrology and geochemistry of the reservoir,the plane distribution characteristics of igneous rock reservoir are clarified.Finally,using the heavy magnetic characteristics of igneous rocks and seismic response characteristics,combined with the development of seismic data for tracing interpretation,fracture detection technology for crack prediction,evaluation of the research area favorable igneous rock reservoir distribution.Through research and analysis,the igneous rocks in the area are mainly eruptive facies,the volcanic breccia of burst facies occurs sporadically in the Bin 338 area,and the diabase of intrusive facies only occurs in the Bin 349 area in the northwest.The distribution of igneous rocks in the Bin3 areas of the waterfront has a certain regularity,and in the plane,the main faults are banded and the whole has the north-west direction.Differences in distribution of different strata in igneous reservoir,the fine description of igneous rock in Es₃ and Es₄ was achieved through technical research,which clarifies the planar distribution of igneous rocks,concluding that in plane the igneous rock is zonal distribution alone major fault in the fracture zone and is NW trending.The igneous rocks in chunshang sub-member of Es4 are widely distributed in the west of Bin 338 well,and the igneous rocks in the lower part of Es₃ only distributed in the north of well Xinbin 348.Oil and gas enriched in the igneous rocks with cumulative thickness over 10m.