摘要
3.5D seismic is the methodology which integrates high-quality 3D seismic data with the production information of oilfield to solve the problems in reservoir development and find remaining oil during the middle and later development stages of oilfield.This technique integrates seismic,geology,well logging and production information for raising economic benefit in oilfield development.With the earlier study results and the latest research of 3.5D seismic,a reservoir characterization integration workflow was proposed,which includes well-to-seismic calibration based on reference horizon,structure evolution interpretation,depositional evolution interpretation,reservoir static modeling,spatial dynamic production information interpretation, as well as the integrated interpretation of 3D seismic data, static and dynamic information of reservoir production.The application to a water flooding oilfield in West China and thermal recovery for heavy oil in east China indicated the capability of 3.5 D seismic,and provided the latest research achievements.