The Exploration Target And Reservoir Forming Model Of The Minqiao Oilfield

In this research,we did the strata correlation of about 320 wells,observed and described the well core in 22 wells,gathered up about 250 test data,interpreted around 110 km² 3D seismic data,and interpreted 4 reflectors which are T₂⁰?T₃⁰?T₃¹?T₃³.After the research,we raised the 5 achievements.1.Firstly,we did the analysis of the plane and section combined characteristic of the faults,and set up the structure styles of the area.In Minqiao Oilfield,there are 6 kinds of plane combined styles,and 5 kinds of plane combined styles.2.Secondly,on the base of the research of structure styles,and the horizon demarcation and the velocity field,synthesized the dynamic and static documents,utilized the many kinds of earthquake interpretation technology,we formed the earthquake interpretation technology set for the T₃¹ weak reflector and T₃³ un-chronohorizon.And we interpreted the structure of the work area,and established the structural map of T₃¹ and T₃³,found several exploration targets.3.Thirdly,we did the research of the reservoir,the sedimentary facies of E₁f₃ in the area is the delta,and the main subfacies is the delta front,the reservoir in the structure axial area is developed.We used the LPM technology to forecast the physical property of the reservoir in E₁f₃,and found the range of profitability.And we used the spectrum analysis technology to forecast the development of the fractures in the igneous rock,and found the range of profitability.4.Fourthly,we researched the reservoir forming model,the reservoir of Minqiao oilfield are controlled by the structure and reservoir,the hydrocarbon enriched around the structure axial area,and the fault dimension are related with the size of the reservoir.5.We submitted 7 appraisal wells,and have drilled 2 exploitation wells,1 development preparing well.And we found 1 300 000 tons commercial reserves,submitted 19 advantage traps,the forecasting reserves of which are about 9 410 000 tons.