Interpretation And Application Of Seismic Data In Putaohua Reservoir Of Weixing Oil Field

The Weixing oil field is located in the slope of the transition zone from Daqingplacanticline in Northern Songliao Basin to Sanzhao Depression, where contains variousinfluenced factors on the accumulation of Putaohua reservoir, showing complicated reservoirtypes and relationship of oil and water. With the deepen of oilfield development, thedifficulties of exploiting remaining reserves are increasing, it becomes an urgent issue to findnew petroliferous areas. This thesis applies the method and measures of SequenceStratigraphy, Sedimentology and Geophysics systematically, taking the advantages of jointstudy of many relative subjects. Based on materials of drilling, logging, seismos and well log,taking geophysical exploration as the main technical means, we unitize the division andcorrelation of drilling wells in region of interest according to the study of structural featuresof Weixing oil field, and make the stratigraphic well correlation. This thesis applies themethod and measures of Sequence Stratigraphy, Sedimentology and Geophysicssystematically, taking the advantages of joint study of many relative subjects. Based onmaterials of drilling, logging, seismos and well log, taking geophysical exploration as themain technical means, we unitize the division and correlation of drilling wells in region ofinterest according to the study of structural features of Weixing oil field. Based on the theoryof seismic data interpretation, we carry out a series of works such as structure elucidation andfault interpretation, so as to find out the structural characteristics and fault features ofPutaohua reservoir in this area.Based on the precise seismic data interpretation of the study region, the paper gives acomprehensive account of various conditions of Putaohua reservoir, such as structure, geology,sedimentary facies, reservoir distribution, seismic attribution, drilling, oil testing andproduction testing, makes the whole evaluation of Putaohua oil reservoir, figures out thePutaohua oil reservoir distribution characteristics and oil-gas distribution regularities in the3D seismic zone of Weixing oil field, and predicts the favorable place of the nondevelopmentzones. While under the condition that it is hard to find low order faults by using seismic data,it is also an effective approach to analyze the existence of small-scale low order faults insingle anticline zone by using the logging data of dense well pattern.In the last place, the thesis makes the study of flowing unit measured in layer in Wei21block, and classifies three types of flowing unit with representative examples, which providessome positive purpose of reasonable oil-water relationship explanation, the water injection response evaluation and the remaining oil distribution determination.