Abstract：P Block is located in the South Turgay Basin of Kazakhstan in which the favorable target Jurassic strata geologically belong to continental clastic sedimentation.Due to the frequent lake water intrusion and retreat，the reservoirs in this area are normally thin，with rapid lateral changes，and the structural trap is relatively small.Based on the geology and data characteristics of this area，the study and application of target-oriented processing techniques are carried out to improve the quality of seismic data processing.Tomographic static correction constrained by LVL information is executed to improve the imaging accuracy of relief structure； well-constrained wavelet processing is used to improve the vertical resolution of seismic data，and the OVT domain regularization is utilized to improve the spatial sampling attribute of the observation system，the S/N ratio，and the lateral resolution； seismic velocity analysis constrained by the VSP and acoustic velocity is implemented to improve the velocity reliability to meet the requirement of the relief structure imaging.After the application of such target-oriented processing techniques，the imaging accuracy and both the vertical and horizontal resolution achieve improvements，which can meet the requirement of exploration in this area and provide a reliable foundation for the fulfillment of increasing production in the P block.
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DING Chengzhen, ZHANG Hongjun, LIU Hangjun, LI Dongsheng, ZHANG Dan, HAO Hechen. Study and application of target-oriented processing techniques for low relief area with thin reservoir in P Block. Oil Geophysical Prospecting, 2023, 58(s1): 6-11.
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