YLYTT70-122區(qū)塊精細構造解釋及井網(wǎng)優(yōu)化研究
[Abstract]:In this paper, by studying and analyzing the field seismic acquisition data in YLYTT70- 122 area, a seismic data volume which can describe the fine structure and predict the reservoir is proposed, which improves the data quality and imaging accuracy of the target layer. The results show that the energy of the effective signal is weak in the deep layer. At the same time, surface wave, abnormal value, abnormal amplitude, high frequency interference and multiple wave constitute the main noise signal. In the target layer, the information of the processed result profile is rich, and its signal-to-noise ratio (SNR), resolution and wave group characteristics have achieved good results. The reservoir inversion technique is used to predict the development of sand bodies, and the predicted sandstone thickness is in good agreement with the thickness of sandstone drilled in a single well. By analyzing the percentage content of sandstone, sandstone thickness map and seismic attributes, it is determined that the reservoir deposition in this area is controlled by the northwest provenance, and the mat sand on the outer edge of the Delta is mainly developed. Based on the results of reservoir prediction, the corresponding well pattern is designed and the well location is reasonably deployed. Priority is given to the selection of seismic attributes and favorable areas for sand body development, and the well pattern of horizontal wells combined with straight well injection and production is deployed. The above research results provide technical reserve for the next step of block development and reduce the development risk.
【學位授予單位】:東北石油大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TE324;P618.13
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