High precision structural interpretation in complex small fault-block zone: a case of Qintong depression

Summary Structural interpretation is the fundamental of reservoir prediction, and enhancing the precision of interpretation is an effective method to improve the effect of prediction. Various techniques are used to achieve high precision of structural interpretation, including fine horizon calibration, enhancing the quality of seismic data, increasing the grid density, horizons tracking and fault interpretation on the knowledge of geology. The paper discusses the method of improving the precision of structural interpretation in complex small fault-block zones of Qintong depression.