| In this paper,guided by the theories of sequence statigraphy,petroleum geology,sedimentary,combined with seismic,logging,core,etc,conducted a detailed on Denglouku group of Qijia-Gulong region in sequence stratigaphic framework and lithologic traps,and combination of reservoir-cap combination of characteristics,to predict a favorable exploration area.Careful analysis and reference to previous research results will be posted on the Quan 1,2 member-Denglouku formation devided into six duering the deposition,Denglouku formation is a complete super-sequence,the top and the bottom interface is super-sequence boundaries can be further devided into four three-sequence:the lowstand system tracts period(in the first member of Denglouku group),the transgressive system tracts period(in the second member of Denglouku group),the early stage of highstand system tracts period(in the third member of Denglouku group),the late stage of highstand system tracts period(in the fourth member of Denglouku group),in addition the Quan 1,2 member correspond to the lowstand and the transgressive system tracts.Analyzed and summaried for each sequence boundaries,combined with the seismic data,well data,the use of a single well calibration,the associated well profile on seismic profiles to track the contrast,to establish the stratigraphic framework Quan 1,2 member-Denglouku formation.Study area identified 5 types of facies,14types of sub facies and 26 types of micro facies;combined single well phase,associated wells relative to the sands than the plan,seismic phase plane distribution and summed up the characteristic of the study area of Quan 1,2 member-Denglouku formation sedimentary and sedimentary evolution of the mode.The study area according to the characteristics of reservoir-cap the Quan 1,2 member-Denglouku formation is devided into three sets of reservoir-cap combination,the two-reservoir-cap model,pointed out tha the favorable exploration zones in the study area. |
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