Prediction of lithologic gas bearing reservoir based on A VO technology
In the AH area,the seismic feedback characteristics of Bailiantan Formation are fuzzy,and the multi-solution of reservoir prediction is strong,which makes improving the prediction accuracy of gas-bearing reservoir become a key issue in the area.Recent drilling information and petrophysical analysis show that the ratio of longitudinal to transverse wave velocity is more responsive to the gas bearing reservoir,and the higher the ratio,the more significant the reservoir development.The characteristics of longitudinal and transverse wave velocity ratio in AH area are used to predict the development state of the Baijiantan Formation reservoir,and the predicted results are very consistent with the field drilling data.The study reveals that the gas-bearing reservoir in AH area can be identified effectively according to the A VO characteristics of developed and non-developed reservoirs in Baijiantan Formation.The method of reservoir prediction by means of seismic channel set trans-verse wave velocity ratio of Baijiantan Formation can solve the multi-solution problem of gas reservoir prediction in AH area,improve the accuracy of lithologic reservoir prediction,and have key guiding value for future exploration and development in AH area.
AVOlithologic reservoirP-and S-wave velocity ratioprediction of gas-bearing reservoir
万方数据
维普
